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CVE-2024-36949 (GCVE-0-2024-36949)
Vulnerability from cvelistv5 – Published: 2024-05-30 15:35 – Updated: 2026-05-11 20:17| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
4a488a7ad71401169cecee75dc94bcce642e2c53 , < b6f6626528fe724b512c34f3fb5946c36a135f58
(git)
Affected: 4a488a7ad71401169cecee75dc94bcce642e2c53 , < ed28ef3840bbf93a64376ea7814ce39f86352e14 (git) Affected: 4a488a7ad71401169cecee75dc94bcce642e2c53 , < d06af584be5a769d124b7302b32a033e9559761d (git) |
guessed | |
| Linux | Linux |
Affected:
3.19
Unaffected: 0 , < 3.19 (semver) Unaffected: 6.6.31 , ≤ 6.6.* (semver) Unaffected: 6.8.10 , ≤ 6.8.* (semver) Unaffected: 6.9 , ≤ * (original_commit_for_fix) |
guessed |
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FKIE_CVE-2024-36949
Vulnerability from fkie_nvd - Published: 2024-05-30 16:15 - Updated: 2026-06-17 07:37| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | 6.9 | |
| linux | linux_kernel | 6.9 | |
| linux | linux_kernel | 6.9 |
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MSRC_CVE-2024-36949
Vulnerability from csaf_microsoft - Published: 2024-05-02 07:00 - Updated: 2026-03-31 15:17OESA-2024-1706 (CVE-2021-47247)
Vulnerability from osv_openeuler – Published: 2024-06-14 11:07 – Updated: 2026-08-06 11:07 – Source websiteThe Linux Kernel, the operating system core itself.
Security Fix(es):
In the Linux kernel, the following vulnerability has been resolved:
net/mlx5e: Fix use-after-free of encap entry in neigh update handler
Function mlx5e_rep_neigh_update() wasn't updated to accommodate rtnl lock removal from TC filter update path and properly handle concurrent encap entry insertion/deletion which can lead to following use-after-free:
[23827.464923] ================================================================== [23827.469446] BUG: KASAN: use-after-free in mlx5e_encap_take+0x72/0x140 [mlx5_core] [23827.470971] Read of size 4 at addr ffff8881d132228c by task kworker/u20:6/21635 [23827.472251] [23827.472615] CPU: 9 PID: 21635 Comm: kworker/u20:6 Not tainted 5.13.0-rc3+ #5 [23827.473788] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 [23827.475639] Workqueue: mlx5e mlx5e_rep_neigh_update [mlx5_core] [23827.476731] Call Trace: [23827.477260] dump_stack+0xbb/0x107 [23827.477906] print_address_description.constprop.0+0x18/0x140 [23827.478896] ? mlx5e_encap_take+0x72/0x140 [mlx5_core] [23827.479879] ? mlx5e_encap_take+0x72/0x140 [mlx5_core] [23827.480905] kasan_report.cold+0x7c/0xd8 [23827.481701] ? mlx5e_encap_take+0x72/0x140 [mlx5_core] [23827.482744] kasan_check_range+0x145/0x1a0 [23827.493112] mlx5e_encap_take+0x72/0x140 [mlx5_core] [23827.494054] ? mlx5e_tc_tun_encap_info_equal_generic+0x140/0x140 [mlx5_core] [23827.495296] mlx5e_rep_neigh_update+0x41e/0x5e0 [mlx5_core] [23827.496338] ? mlx5e_rep_neigh_entry_release+0xb80/0xb80 [mlx5_core] [23827.497486] ? read_word_at_a_time+0xe/0x20 [23827.498250] ? strscpy+0xa0/0x2a0 [23827.498889] process_one_work+0x8ac/0x14e0 [23827.499638] ? lockdep_hardirqs_on_prepare+0x400/0x400 [23827.500537] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [23827.501359] ? rwlock_bug.part.0+0x90/0x90 [23827.502116] worker_thread+0x53b/0x1220 [23827.502831] ? process_one_work+0x14e0/0x14e0 [23827.503627] kthread+0x328/0x3f0 [23827.504254] ? _raw_spin_unlock_irq+0x24/0x40 [23827.505065] ? __kthread_bind_mask+0x90/0x90 [23827.505912] ret_from_fork+0x1f/0x30 [23827.506621] [23827.506987] Allocated by task 28248: [23827.507694] kasan_save_stack+0x1b/0x40 [23827.508476] __kasan_kmalloc+0x7c/0x90 [23827.509197] mlx5e_attach_encap+0xde1/0x1d40 [mlx5_core] [23827.510194] mlx5e_tc_add_fdb_flow+0x397/0xc40 [mlx5_core] [23827.511218] __mlx5e_add_fdb_flow+0x519/0xb30 [mlx5_core] [23827.512234] mlx5e_configure_flower+0x191c/0x4870 [mlx5_core] [23827.513298] tc_setup_cb_add+0x1d5/0x420 [23827.514023] fl_hw_replace_filter+0x382/0x6a0 [cls_flower] [23827.514975] fl_change+0x2ceb/0x4a51 [cls_flower] [23827.515821] tc_new_tfilter+0x89a/0x2070 [23827.516548] rtnetlink_rcv_msg+0x644/0x8c0 [23827.517300] netlink_rcv_skb+0x11d/0x340 [23827.518021] netlink_unicast+0x42b/0x700 [23827.518742] netlink_sendmsg+0x743/0xc20 [23827.519467] sock_sendmsg+0xb2/0xe0 [23827.520131] _syssendmsg+0x590/0x770 [23827.520851] _sys_sendmsg+0xd8/0x160 [23827.521552] __sys_sendmsg+0xb7/0x140 [23827.522238] do_syscall_64+0x3a/0x70 [23827.522907] entry_SYSCALL_64_after_hwframe+0x44/0xae [23827.523797] [23827.524163] Freed by task 25948: [23827.524780] kasan_save_stack+0x1b/0x40 [23827.525488] kasan_set_track+0x1c/0x30 [23827.526187] kasan_set_free_info+0x20/0x30 [23827.526968] __kasan_slab_free+0xed/0x130 [23827.527709] slab_free_freelist_hook+0xcf/0x1d0 [23827.528528] kmem_cache_free_bulk+0x33a/0x6e0 [23827.529317] kfree_rcu_work+0x55f/0xb70 [23827.530024] process_one_work+0x8ac/0x14e0 [23827.530770] worker_thread+0x53b/0x1220 [23827.531480] kthread+0x328/0x3f0 [23827.532114] ret_from_fork+0x1f/0x30 [23827.532785] [23827.533147] Last potentially related work creation: [23827.534007] kasan_save_stack+0x1b/0x40 [23827.534710] kasan_record_aux_stack+0xab/0xc0 [23827.535492] kvfree_call_rcu+0x31/0x7b0 [23827.536206] mlx5e_tc_del ---truncated---(CVE-2021-47247)
In the Linux kernel, the following vulnerability has been resolved:
RDMA: Verify port when creating flow rule
Validate port value provided by the user and with that remove no longer needed validation by the driver. The missing check in the mlx5_ib driver could cause to the below oops.
Call trace: _create_flow_rule+0x2d4/0xf28 [mlx5_ib] mlx5_ib_create_flow+0x2d0/0x5b0 [mlx5_ib] ib_uverbs_ex_create_flow+0x4cc/0x624 [ib_uverbs] ib_uverbs_handler_UVERBS_METHOD_INVOKE_WRITE+0xd4/0x150 [ib_uverbs] ib_uverbs_cmd_verbs.isra.7+0xb28/0xc50 [ib_uverbs] ib_uverbs_ioctl+0x158/0x1d0 [ib_uverbs] do_vfs_ioctl+0xd0/0xaf0 ksys_ioctl+0x84/0xb4 __arm64_sys_ioctl+0x28/0xc4 el0_svc_common.constprop.3+0xa4/0x254 el0_svc_handler+0x84/0xa0 el0_svc+0x10/0x26c Code: b9401260 f9615681 51000400 8b001c20 (f9403c1a)(CVE-2021-47265)
In the Linux kernel, the following vulnerability has been resolved:
mISDN: fix possible use-after-free in HFC_cleanup()
This module's remove path calls del_timer(). However, that function does not wait until the timer handler finishes. This means that the timer handler may still be running after the driver's remove function has finished, which would result in a use-after-free.
Fix by calling del_timer_sync(), which makes sure the timer handler has finished, and unable to re-schedule itself.(CVE-2021-47356)
In the Linux kernel, the following vulnerability has been resolved:
net: stmmac: Disable Tx queues when reconfiguring the interface
The Tx queues were not disabled in situations where the driver needed to stop the interface to apply a new configuration. This could result in a kernel panic when doing any of the 3 following actions: * reconfiguring the number of queues (ethtool -L) * reconfiguring the size of the ring buffers (ethtool -G) * installing/removing an XDP program (ip l set dev ethX xdp)
Prevent the panic by making sure netif_tx_disable is called when stopping an interface.
Without this patch, the following kernel panic can be observed when doing any of the actions above:
Unable to handle kernel paging request at virtual address ffff80001238d040 [....] Call trace: dwmac4_set_addr+0x8/0x10 dev_hard_start_xmit+0xe4/0x1ac sch_direct_xmit+0xe8/0x39c __dev_queue_xmit+0x3ec/0xaf0 dev_queue_xmit+0x14/0x20 [...] [ end trace 0000000000000002 ]---(CVE-2021-47558)
In the Linux kernel, the following vulnerability has been resolved:
ice: Fix crash by keep old cfg when update TCs more than queues
There are problems if allocated queues less than Traffic Classes.
Commit a632b2a4c920 ("ice: ethtool: Prohibit improper channel config for DCB") already disallow setting less queues than TCs.
Another case is if we first set less queues, and later update more TCs config due to LLDP, ice_vsi_cfg_tc() will failed but left dirty num_txq/rxq and tc_cfg in vsi, that will cause invalid pointer access.
[ 95.968089] ice 0000:3b:00.1: More TCs defined than queues/rings allocated. [ 95.968092] ice 0000:3b:00.1: Trying to use more Rx queues (8), than were allocated (1)! [ 95.968093] ice 0000:3b:00.1: Failed to config TC for VSI index: 0 [ 95.969621] general protection fault: 0000 [#1] SMP NOPTI [ 95.969705] CPU: 1 PID: 58405 Comm: lldpad Kdump: loaded Tainted: G U W O --------- -t - 4.18.0 #1 [ 95.969867] Hardware name: O.E.M/BC11SPSCB10, BIOS 8.23 12/30/2021 [ 95.969992] RIP: 0010:devm_kmalloc+0xa/0x60 [ 95.970052] Code: 5c ff ff ff 31 c0 5b 5d 41 5c c3 b8 f4 ff ff ff eb f4 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 89 d1 <8b> 97 60 02 00 00 48 8d 7e 18 48 39 f7 72 3f 55 89 ce 53 48 8b 4c [ 95.970344] RSP: 0018:ffffc9003f553888 EFLAGS: 00010206 [ 95.970425] RAX: dead000000000200 RBX: ffffea003c425b00 RCX: 00000000006080c0 [ 95.970536] RDX: 00000000006080c0 RSI: 0000000000000200 RDI: dead000000000200 [ 95.970648] RBP: dead000000000200 R08: 00000000000463c0 R09: ffff888ffa900000 [ 95.970760] R10: 0000000000000000 R11: 0000000000000002 R12: ffff888ff6b40100 [ 95.970870] R13: ffff888ff6a55018 R14: 0000000000000000 R15: ffff888ff6a55460 [ 95.970981] FS: 00007f51b7d24700(0000) GS:ffff88903ee80000(0000) knlGS:0000000000000000 [ 95.971108] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 95.971197] CR2: 00007fac5410d710 CR3: 0000000f2c1de002 CR4: 00000000007606e0 [ 95.971309] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 95.971419] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 95.971530] PKRU: 55555554 [ 95.971573] Call Trace: [ 95.971622] ice_setup_rx_ring+0x39/0x110 [ice] [ 95.971695] ice_vsi_setup_rx_rings+0x54/0x90 [ice] [ 95.971774] ice_vsi_open+0x25/0x120 [ice] [ 95.971843] ice_open_internal+0xb8/0x1f0 [ice] [ 95.971919] ice_ena_vsi+0x4f/0xd0 [ice] [ 95.971987] ice_dcb_ena_dis_vsi.constprop.5+0x29/0x90 [ice] [ 95.972082] ice_pf_dcb_cfg+0x29a/0x380 [ice] [ 95.972154] ice_dcbnl_setets+0x174/0x1b0 [ice] [ 95.972220] dcbnl_ieee_set+0x89/0x230 [ 95.972279] ? dcbnl_ieee_del+0x150/0x150 [ 95.972341] dcb_doit+0x124/0x1b0 [ 95.972392] rtnetlink_rcv_msg+0x243/0x2f0 [ 95.972457] ? dcb_doit+0x14d/0x1b0 [ 95.972510] ? __kmalloc_node_track_caller+0x1d3/0x280 [ 95.972591] ? rtnl_calcit.isra.31+0x100/0x100 [ 95.972661] netlink_rcv_skb+0xcf/0xf0 [ 95.972720] netlink_unicast+0x16d/0x220 [ 95.972781] netlink_sendmsg+0x2ba/0x3a0 [ 95.975891] sock_sendmsg+0x4c/0x50 [ 95.979032] syssendmsg+0x2e4/0x300 [ 95.982147] ? kmem_cache_alloc+0x13e/0x190 [ 95.985242] ? wake_up_common_lock+0x79/0x90 [ 95.988338] ? __check_object_size+0xac/0x1b0 [ 95.991440] ? _copy_to_user+0x22/0x30 [ 95.994539] ? move_addr_to_user+0xbb/0xd0 [ 95.997619] ? __sys_sendmsg+0x53/0x80 [ 96.000664] __sys_sendmsg+0x53/0x80 [ 96.003747] do_syscall_64+0x5b/0x1d0 [ 96.006862] entry_SYSCALL_64_after_hwframe+0x65/0xca
Only update num_txq/rxq when passed check, and restore tc_cfg if setup queue map failed.(CVE-2022-48652)
In the Linux kernel, the following vulnerability has been resolved:
aio: fix mremap after fork null-deref
Commit e4a0d3e720e7 ("aio: Make it possible to remap aio ring") introduced a null-deref if mremap is called on an old aio mapping after fork as mm->ioctx_table will be set to NULL.
jmoyer@redhat.com: fix 80 column issue
In the Linux kernel, the following vulnerability has been resolved:
riscv: Check if the code to patch lies in the exit section
Otherwise we fall through to vmalloc_to_page() which panics since the address does not lie in the vmalloc region.(CVE-2023-52677)
In the Linux kernel, the following vulnerability has been resolved:
ALSA: scarlett2: Add missing error checks to *_ctl_get()
The ctl_get() functions which call scarlett2_update() were not checking the return value. Fix to check the return value and pass to the caller.(CVE-2023-52680)
In the Linux kernel, the following vulnerability has been resolved:
powerpc/powernv: Add a null pointer check in opal_event_init()
kasprintf() returns a pointer to dynamically allocated memory which can be NULL upon failure.(CVE-2023-52686)
In the Linux kernel, the following vulnerability has been resolved:
net: openvswitch: fix possible memory leak in ovs_meter_cmd_set()
old_meter needs to be free after it is detached regardless of whether the new meter is successfully attached.(CVE-2023-52702)
In the Linux kernel, the following vulnerability has been resolved:
nilfs2: fix underflow in second superblock position calculations
Macro NILFS_SB2_OFFSET_BYTES, which computes the position of the second superblock, underflows when the argument device size is less than 4096 bytes. Therefore, when using this macro, it is necessary to check in advance that the device size is not less than a lower limit, or at least that underflow does not occur.
The current nilfs2 implementation lacks this check, causing out-of-bound block access when mounting devices smaller than 4096 bytes:
I/O error, dev loop0, sector 36028797018963960 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 NILFS (loop0): unable to read secondary superblock (blocksize = 1024)
In addition, when trying to resize the filesystem to a size below 4096 bytes, this underflow occurs in nilfs_resize_fs(), passing a huge number of segments to nilfs_sufile_resize(), corrupting parameters such as the number of segments in superblocks. This causes excessive loop iterations in nilfs_sufile_resize() during a subsequent resize ioctl, causing semaphore ns_segctor_sem to block for a long time and hang the writer thread:
INFO: task segctord:5067 blocked for more than 143 seconds. Not tainted 6.2.0-rc8-syzkaller-00015-gf6feea56f66d #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:segctord state:D stack:23456 pid:5067 ppid:2 flags:0x00004000 Call Trace: <TASK> context_switch kernel/sched/core.c:5293 [inline] __schedule+0x1409/0x43f0 kernel/sched/core.c:6606 schedule+0xc3/0x190 kernel/sched/core.c:6682 rwsem_down_write_slowpath+0xfcf/0x14a0 kernel/locking/rwsem.c:1190 nilfs_transaction_lock+0x25c/0x4f0 fs/nilfs2/segment.c:357 nilfs_segctor_thread_construct fs/nilfs2/segment.c:2486 [inline] nilfs_segctor_thread+0x52f/0x1140 fs/nilfs2/segment.c:2570 kthread+0x270/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 </TASK> ... Call Trace: <TASK> folio_mark_accessed+0x51c/0xf00 mm/swap.c:515 __nilfs_get_page_block fs/nilfs2/page.c:42 [inline] nilfs_grab_buffer+0x3d3/0x540 fs/nilfs2/page.c:61 nilfs_mdt_submit_block+0xd7/0x8f0 fs/nilfs2/mdt.c:121 nilfs_mdt_read_block+0xeb/0x430 fs/nilfs2/mdt.c:176 nilfs_mdt_get_block+0x12d/0xbb0 fs/nilfs2/mdt.c:251 nilfs_sufile_get_segment_usage_block fs/nilfs2/sufile.c:92 [inline] nilfs_sufile_truncate_range fs/nilfs2/sufile.c:679 [inline] nilfs_sufile_resize+0x7a3/0x12b0 fs/nilfs2/sufile.c:777 nilfs_resize_fs+0x20c/0xed0 fs/nilfs2/super.c:422 nilfs_ioctl_resize fs/nilfs2/ioctl.c:1033 [inline] nilfs_ioctl+0x137c/0x2440 fs/nilfs2/ioctl.c:1301 ...
This fixes these issues by inserting appropriate minimum device size checks or anti-underflow checks, depending on where the macro is used.(CVE-2023-52705)
In the Linux kernel, the following vulnerability has been resolved:
IB/IPoIB: Fix legacy IPoIB due to wrong number of queues
The cited commit creates child PKEY interfaces over netlink will multiple tx and rx queues, but some devices doesn't support more than 1 tx and 1 rx queues. This causes to a crash when traffic is sent over the PKEY interface due to the parent having a single queue but the child having multiple queues.
This patch fixes the number of queues to 1 for legacy IPoIB at the earliest possible point in time.
BUG: kernel NULL pointer dereference, address: 000000000000036b PGD 0 P4D 0 Oops: 0000 [#1] SMP CPU: 4 PID: 209665 Comm: python3 Not tainted 6.1.0_for_upstream_min_debug_2022_12_12_17_02 #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 RIP: 0010:kmem_cache_alloc+0xcb/0x450 Code: ce 7e 49 8b 50 08 49 83 78 10 00 4d 8b 28 0f 84 cb 02 00 00 4d 85 ed 0f 84 c2 02 00 00 41 8b 44 24 28 48 8d 4a 01 49 8b 3c 24 <49> 8b 5c 05 00 4c 89 e8 65 48 0f c7 0f 0f 94 c0 84 c0 74 b8 41 8b RSP: 0018:ffff88822acbbab8 EFLAGS: 00010202 RAX: 0000000000000070 RBX: ffff8881c28e3e00 RCX: 00000000064f8dae RDX: 00000000064f8dad RSI: 0000000000000a20 RDI: 0000000000030d00 RBP: 0000000000000a20 R08: ffff8882f5d30d00 R09: ffff888104032f40 R10: ffff88810fade828 R11: 736f6d6570736575 R12: ffff88810081c000 R13: 00000000000002fb R14: ffffffff817fc865 R15: 0000000000000000 FS: 00007f9324ff9700(0000) GS:ffff8882f5d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000000036b CR3: 00000001125af004 CR4: 0000000000370ea0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> skb_clone+0x55/0xd0 ip6_finish_output2+0x3fe/0x690 ip6_finish_output+0xfa/0x310 ip6_send_skb+0x1e/0x60 udp_v6_send_skb+0x1e5/0x420 udpv6_sendmsg+0xb3c/0xe60 ? ip_mc_finish_output+0x180/0x180 ? __switch_to_asm+0x3a/0x60 ? __switch_to_asm+0x34/0x60 sock_sendmsg+0x33/0x40 __sys_sendto+0x103/0x160 ? _copy_to_user+0x21/0x30 ? kvm_clock_get_cycles+0xd/0x10 ? ktime_get_ts64+0x49/0xe0 __x64_sys_sendto+0x25/0x30 do_syscall_64+0x3d/0x90 entry_SYSCALL_64_after_hwframe+0x46/0xb0 RIP: 0033:0x7f9374f1ed14 Code: 42 41 f8 ff 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 68 41 f8 ff 48 8b RSP: 002b:00007f9324ff7bd0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f9324ff7cc8 RCX: 00007f9374f1ed14 RDX: 00000000000002fb RSI: 00007f93000052f0 RDI: 0000000000000030 RBP: 0000000000000000 R08: 00007f9324ff7d40 R09: 000000000000001c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 000000012a05f200 R14: 0000000000000001 R15: 00007f9374d57bdc </TASK>(CVE-2023-52745)
In the Linux kernel, the following vulnerability has been resolved:
xfrm/compat: prevent potential spectre v1 gadget in xfrm_xlate32_attr()
int type = nla_type(nla);
if (type > XFRMA_MAX) { return -EOPNOTSUPP; }
@type is then used as an array index and can be used as a Spectre v1 gadget.
if (nla_len(nla) < compat_policy[type].len) {
array_index_nospec() can be used to prevent leaking content of kernel memory to malicious users.(CVE-2023-52746)
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Avoid NULL dereference of timing generator
[Why & How] Check whether assigned timing generator is NULL or not before accessing its funcs to prevent NULL dereference.(CVE-2023-52753)
In the Linux kernel, the following vulnerability has been resolved:
net/smc: avoid data corruption caused by decline
We found a data corruption issue during testing of SMC-R on Redis applications.
The benchmark has a low probability of reporting a strange error as shown below.
"Error: Protocol error, got "\xe2" as reply type byte"
Finally, we found that the retrieved error data was as follows:
0xE2 0xD4 0xC3 0xD9 0x04 0x00 0x2C 0x20 0xA6 0x56 0x00 0x16 0x3E 0x0C 0xCB 0x04 0x02 0x01 0x00 0x00 0x20 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0xE2
It is quite obvious that this is a SMC DECLINE message, which means that the applications received SMC protocol message. We found that this was caused by the following situations:
client server ¦ clc proposal -------------> ¦ clc accept <------------- ¦ clc confirm -------------> wait llc confirm send llc confirm ¦failed llc confirm ¦ x------ (after 2s)timeout wait llc confirm rsp
wait decline
(after 1s) timeout (after 2s) timeout ¦ decline --------------> ¦ decline <--------------
As a result, a decline message was sent in the implementation, and this message was read from TCP by the already-fallback connection.
This patch double the client timeout as 2x of the server value, With this simple change, the Decline messages should never cross or collide (during Confirm link timeout).
This issue requires an immediate solution, since the protocol updates involve a more long-term solution.(CVE-2023-52775)
In the Linux kernel, the following vulnerability has been resolved:
ipvlan: add ipvlan_route_v6_outbound() helper
Inspired by syzbot reports using a stack of multiple ipvlan devices.
Reduce stack size needed in ipvlan_process_v6_outbound() by moving the flowi6 struct used for the route lookup in an non inlined helper. ipvlan_route_v6_outbound() needs 120 bytes on the stack, immediately reclaimed.
Also make sure ipvlan_process_v4_outbound() is not inlined.
We might also have to lower MAX_NEST_DEV, because only syzbot uses setups with more than four stacked devices.
BUG: TASK stack guard page was hit at ffffc9000e803ff8 (stack is ffffc9000e804000..ffffc9000e808000) stack guard page: 0000 [#1] SMP KASAN CPU: 0 PID: 13442 Comm: syz-executor.4 Not tainted 6.1.52-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 RIP: 0010:kasan_check_range+0x4/0x2a0 mm/kasan/generic.c:188 Code: 48 01 c6 48 89 c7 e8 db 4e c1 03 31 c0 5d c3 cc 0f 0b eb 02 0f 0b b8 ea ff ff ff 5d c3 cc 00 00 cc cc 00 00 cc cc 55 48 89 e5 <41> 57 41 56 41 55 41 54 53 b0 01 48 85 f6 0f 84 a4 01 00 00 48 89 RSP: 0018:ffffc9000e804000 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff817e5bf2 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff887c6568 RBP: ffffc9000e804000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92001d0080c R13: dffffc0000000000 R14: ffffffff87e6b100 R15: 0000000000000000 FS: 00007fd0c55826c0(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc9000e803ff8 CR3: 0000000170ef7000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <#DF> </#DF> <TASK> [<ffffffff81f281d1>] __kasan_check_read+0x11/0x20 mm/kasan/shadow.c:31 [<ffffffff817e5bf2>] instrument_atomic_read include/linux/instrumented.h:72 [inline] [<ffffffff817e5bf2>] _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline] [<ffffffff817e5bf2>] cpumask_test_cpu include/linux/cpumask.h:506 [inline] [<ffffffff817e5bf2>] cpu_online include/linux/cpumask.h:1092 [inline] [<ffffffff817e5bf2>] trace_lock_acquire include/trace/events/lock.h:24 [inline] [<ffffffff817e5bf2>] lock_acquire+0xe2/0x590 kernel/locking/lockdep.c:5632 [<ffffffff8563221e>] rcu_lock_acquire+0x2e/0x40 include/linux/rcupdate.h:306 [<ffffffff8561464d>] rcu_read_lock include/linux/rcupdate.h:747 [inline] [<ffffffff8561464d>] ip6_pol_route+0x15d/0x1440 net/ipv6/route.c:2221 [<ffffffff85618120>] ip6_pol_route_output+0x50/0x80 net/ipv6/route.c:2606 [<ffffffff856f65b5>] pol_lookup_func include/net/ip6_fib.h:584 [inline] [<ffffffff856f65b5>] fib6_rule_lookup+0x265/0x620 net/ipv6/fib6_rules.c:116 [<ffffffff85618009>] ip6_route_output_flags_noref+0x2d9/0x3a0 net/ipv6/route.c:2638 [<ffffffff8561821a>] ip6_route_output_flags+0xca/0x340 net/ipv6/route.c:2651 [<ffffffff838bd5a3>] ip6_route_output include/net/ip6_route.h:100 [inline] [<ffffffff838bd5a3>] ipvlan_process_v6_outbound drivers/net/ipvlan/ipvlan_core.c:473 [inline] [<ffffffff838bd5a3>] ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:529 [inline] [<ffffffff838bd5a3>] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:602 [inline] [<ffffffff838bd5a3>] ipvlan_queue_xmit+0xc33/0x1be0 drivers/net/ipvlan/ipvlan_core.c:677 [<ffffffff838c2909>] ipvlan_start_xmit+0x49/0x100 drivers/net/ipvlan/ipvlan_main.c:229 [<ffffffff84d03900>] netdev_start_xmit include/linux/netdevice.h:4966 [inline] [<ffffffff84d03900>] xmit_one net/core/dev.c:3644 [inline] [<ffffffff84d03900>] dev_hard_start_xmit+0x320/0x980 net/core/dev.c:3660 [<ffffffff84d080e2>] __dev_queue_xmit+0x16b2/0x3370 net/core/dev.c:4324 [<ffffffff855ce4cd>] dev_queue_xmit include/linux/netdevice.h:3067 [inline] [<ffffffff855ce4cd>] neigh_hh_output include/net/neighbour.h:529 [inline] [<f ---truncated---(CVE-2023-52796)
In the Linux kernel, the following vulnerability has been resolved:
wifi: ath11k: fix dfs radar event locking
The ath11k active pdevs are protected by RCU but the DFS radar event handling code calling ath11k_mac_get_ar_by_pdev_id() was not marked as a read-side critical section.
Mark the code in question as an RCU read-side critical section to avoid any potential use-after-free issues.
Compile tested only.(CVE-2023-52798)
In the Linux kernel, the following vulnerability has been resolved:
jfs: fix array-index-out-of-bounds in dbFindLeaf
Currently while searching for dmtree_t for sufficient free blocks there is an array out of bounds while getting element in tp->dm_stree. To add the required check for out of bound we first need to determine the type of dmtree. Thus added an extra parameter to dbFindLeaf so that the type of tree can be determined and the required check can be applied.(CVE-2023-52799)
In the Linux kernel, the following vulnerability has been resolved:
wifi: ath11k: fix htt pktlog locking
The ath11k active pdevs are protected by RCU but the htt pktlog handling code calling ath11k_mac_get_ar_by_pdev_id() was not marked as a read-side critical section.
Mark the code in question as an RCU read-side critical section to avoid any potential use-after-free issues.
Compile tested only.(CVE-2023-52800)
In the Linux kernel, the following vulnerability has been resolved:
SUNRPC: Fix RPC client cleaned up the freed pipefs dentries
RPC client pipefs dentries cleanup is in separated rpc_remove_pipedir() workqueue,which takes care about pipefs superblock locking. In some special scenarios, when kernel frees the pipefs sb of the current client and immediately alloctes a new pipefs sb, rpc_remove_pipedir function would misjudge the existence of pipefs sb which is not the one it used to hold. As a result, the rpc_remove_pipedir would clean the released freed pipefs dentries.
To fix this issue, rpc_remove_pipedir should check whether the current pipefs sb is consistent with the original pipefs sb.
This error can be catched by KASAN:
[ 250.497700] BUG: KASAN: slab-use-after-free in dget_parent+0x195/0x200 [ 250.498315] Read of size 4 at addr ffff88800a2ab804 by task kworker/0:18/106503 [ 250.500549] Workqueue: events rpc_free_client_work [ 250.501001] Call Trace: [ 250.502880] kasan_report+0xb6/0xf0 [ 250.503209] ? dget_parent+0x195/0x200 [ 250.503561] dget_parent+0x195/0x200 [ 250.503897] ? __pfx_rpc_clntdir_depopulate+0x10/0x10 [ 250.504384] rpc_rmdir_depopulate+0x1b/0x90 [ 250.504781] rpc_remove_client_dir+0xf5/0x150 [ 250.505195] rpc_free_client_work+0xe4/0x230 [ 250.505598] process_one_work+0x8ee/0x13b0 ... [ 22.039056] Allocated by task 244: [ 22.039390] kasan_save_stack+0x22/0x50 [ 22.039758] kasan_set_track+0x25/0x30 [ 22.040109] __kasan_slab_alloc+0x59/0x70 [ 22.040487] kmem_cache_alloc_lru+0xf0/0x240 [ 22.040889] __d_alloc+0x31/0x8e0 [ 22.041207] d_alloc+0x44/0x1f0 [ 22.041514] __rpc_lookup_create_exclusive+0x11c/0x140 [ 22.041987] rpc_mkdir_populate.constprop.0+0x5f/0x110 [ 22.042459] rpc_create_client_dir+0x34/0x150 [ 22.042874] rpc_setup_pipedir_sb+0x102/0x1c0 [ 22.043284] rpc_client_register+0x136/0x4e0 [ 22.043689] rpc_new_client+0x911/0x1020 [ 22.044057] rpc_create_xprt+0xcb/0x370 [ 22.044417] rpc_create+0x36b/0x6c0 ... [ 22.049524] Freed by task 0: [ 22.049803] kasan_save_stack+0x22/0x50 [ 22.050165] kasan_set_track+0x25/0x30 [ 22.050520] kasan_save_free_info+0x2b/0x50 [ 22.050921] __kasan_slab_free+0x10e/0x1a0 [ 22.051306] kmem_cache_free+0xa5/0x390 [ 22.051667] rcu_core+0x62c/0x1930 [ 22.051995] __do_softirq+0x165/0x52a [ 22.052347] [ 22.052503] Last potentially related work creation: [ 22.052952] kasan_save_stack+0x22/0x50 [ 22.053313] __kasan_record_aux_stack+0x8e/0xa0 [ 22.053739] __call_rcu_common.constprop.0+0x6b/0x8b0 [ 22.054209] dentry_free+0xb2/0x140 [ 22.054540] __dentry_kill+0x3be/0x540 [ 22.054900] shrink_dentry_list+0x199/0x510 [ 22.055293] shrink_dcache_parent+0x190/0x240 [ 22.055703] do_one_tree+0x11/0x40 [ 22.056028] shrink_dcache_for_umount+0x61/0x140 [ 22.056461] generic_shutdown_super+0x70/0x590 [ 22.056879] kill_anon_super+0x3a/0x60 [ 22.057234] rpc_kill_sb+0x121/0x200(CVE-2023-52803)
In the Linux kernel, the following vulnerability has been resolved:
net: hns3: fix out-of-bounds access may occur when coalesce info is read via debugfs
The hns3 driver define an array of string to show the coalesce info, but if the kernel adds a new mode or a new state, out-of-bounds access may occur when coalesce info is read via debugfs, this patch fix the problem.(CVE-2023-52807)
In the Linux kernel, the following vulnerability has been resolved:
clk: mediatek: clk-mt6797: Add check for mtk_alloc_clk_data
Add the check for the return value of mtk_alloc_clk_data() in order to avoid NULL pointer dereference.(CVE-2023-52865)
In the Linux kernel, the following vulnerability has been resolved:
clk: mediatek: clk-mt2701: Add check for mtk_alloc_clk_data
Add the check for the return value of mtk_alloc_clk_data() in order to avoid NULL pointer dereference.(CVE-2023-52875)
In the Linux kernel, the following vulnerability has been resolved:
xen-netfront: Add missing skb_mark_for_recycle
Notice that skb_mark_for_recycle() is introduced later than fixes tag in commit 6a5bcd84e886 ("page_pool: Allow drivers to hint on SKB recycling").
It is believed that fixes tag were missing a call to page_pool_release_page() between v5.9 to v5.14, after which is should have used skb_mark_for_recycle(). Since v6.6 the call page_pool_release_page() were removed (in commit 535b9c61bdef ("net: page_pool: hide page_pool_release_page()") and remaining callers converted (in commit 6bfef2ec0172 ("Merge branch 'net-page_pool-remove-page_pool_release_page'")).
This leak became visible in v6.8 via commit dba1b8a7ab68 ("mm/page_pool: catch page_pool memory leaks").(CVE-2024-27393)
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: l2cap: fix null-ptr-deref in l2cap_chan_timeout
There is a race condition between l2cap_chan_timeout() and l2cap_chan_del(). When we use l2cap_chan_del() to delete the channel, the chan->conn will be set to null. But the conn could be dereferenced again in the mutex_lock() of l2cap_chan_timeout(). As a result the null pointer dereference bug will happen. The KASAN report triggered by POC is shown below:
[ 472.074580] ================================================================== [ 472.075284] BUG: KASAN: null-ptr-deref in mutex_lock+0x68/0xc0 [ 472.075308] Write of size 8 at addr 0000000000000158 by task kworker/0:0/7 [ 472.075308] [ 472.075308] CPU: 0 PID: 7 Comm: kworker/0:0 Not tainted 6.9.0-rc5-00356-g78c0094a146b #36 [ 472.075308] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu4 [ 472.075308] Workqueue: events l2cap_chan_timeout [ 472.075308] Call Trace: [ 472.075308] <TASK> [ 472.075308] dump_stack_lvl+0x137/0x1a0 [ 472.075308] print_report+0x101/0x250 [ 472.075308] ? __virt_addr_valid+0x77/0x160 [ 472.075308] ? mutex_lock+0x68/0xc0 [ 472.075308] kasan_report+0x139/0x170 [ 472.075308] ? mutex_lock+0x68/0xc0 [ 472.075308] kasan_check_range+0x2c3/0x2e0 [ 472.075308] mutex_lock+0x68/0xc0 [ 472.075308] l2cap_chan_timeout+0x181/0x300 [ 472.075308] process_one_work+0x5d2/0xe00 [ 472.075308] worker_thread+0xe1d/0x1660 [ 472.075308] ? pr_cont_work+0x5e0/0x5e0 [ 472.075308] kthread+0x2b7/0x350 [ 472.075308] ? pr_cont_work+0x5e0/0x5e0 [ 472.075308] ? kthread_blkcg+0xd0/0xd0 [ 472.075308] ret_from_fork+0x4d/0x80 [ 472.075308] ? kthread_blkcg+0xd0/0xd0 [ 472.075308] ret_from_fork_asm+0x11/0x20 [ 472.075308] </TASK> [ 472.075308] ================================================================== [ 472.094860] Disabling lock debugging due to kernel taint [ 472.096136] BUG: kernel NULL pointer dereference, address: 0000000000000158 [ 472.096136] #PF: supervisor write access in kernel mode [ 472.096136] #PF: error_code(0x0002) - not-present page [ 472.096136] PGD 0 P4D 0 [ 472.096136] Oops: 0002 [#1] PREEMPT SMP KASAN NOPTI [ 472.096136] CPU: 0 PID: 7 Comm: kworker/0:0 Tainted: G B 6.9.0-rc5-00356-g78c0094a146b #36 [ 472.096136] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu4 [ 472.096136] Workqueue: events l2cap_chan_timeout [ 472.096136] RIP: 0010:mutex_lock+0x88/0xc0 [ 472.096136] Code: be 08 00 00 00 e8 f8 23 1f fd 4c 89 f7 be 08 00 00 00 e8 eb 23 1f fd 42 80 3c 23 00 74 08 48 88 [ 472.096136] RSP: 0018:ffff88800744fc78 EFLAGS: 00000246 [ 472.096136] RAX: 0000000000000000 RBX: 1ffff11000e89f8f RCX: ffffffff8457c865 [ 472.096136] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff88800744fc78 [ 472.096136] RBP: 0000000000000158 R08: ffff88800744fc7f R09: 1ffff11000e89f8f [ 472.096136] R10: dffffc0000000000 R11: ffffed1000e89f90 R12: dffffc0000000000 [ 472.096136] R13: 0000000000000158 R14: ffff88800744fc78 R15: ffff888007405a00 [ 472.096136] FS: 0000000000000000(0000) GS:ffff88806d200000(0000) knlGS:0000000000000000 [ 472.096136] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 472.096136] CR2: 0000000000000158 CR3: 000000000da32000 CR4: 00000000000006f0 [ 472.096136] Call Trace: [ 472.096136] <TASK> [ 472.096136] ? __die_body+0x8d/0xe0 [ 472.096136] ? page_fault_oops+0x6b8/0x9a0 [ 472.096136] ? kernelmode_fixup_or_oops+0x20c/0x2a0 [ 472.096136] ? do_user_addr_fault+0x1027/0x1340 [ 472.096136] ? _printk+0x7a/0xa0 [ 472.096136] ? mutex_lock+0x68/0xc0 [ 472.096136] ? add_taint+0x42/0xd0 [ 472.096136] ? exc_page_fault+0x6a/0x1b0 [ 472.096136] ? asm_exc_page_fault+0x26/0x30 [ 472.096136] ? mutex_lock+0x75/0xc0 [ 472.096136] ? mutex_lock+0x88/0xc0 [ 472.096136] ? mutex_lock+0x75/0xc0 [ 472.096136] l2cap_chan_timeo ---truncated---(CVE-2024-27399)
In the Linux kernel, the following vulnerability has been resolved:
phonet/pep: fix racy skb_queue_empty() use
The receive queues are protected by their respective spin-lock, not the socket lock. This could lead to skb_peek() unexpectedly returning NULL or a pointer to an already dequeued socket buffer.(CVE-2024-27402)
In the Linux kernel, the following vulnerability has been resolved:
netfilter: bridge: confirm multicast packets before passing them up the stack
conntrack nf_confirm logic cannot handle cloned skbs referencing the same nf_conn entry, which will happen for multicast (broadcast) frames on bridges.
Example: macvlan0 | br0 / \ ethX ethY
ethX (or Y) receives a L2 multicast or broadcast packet containing an IP packet, flow is not yet in conntrack table.
- skb passes through bridge and fake-ip (br_netfilter)Prerouting. -> skb->_nfct now references a unconfirmed entry
- skb is broad/mcast packet. bridge now passes clones out on each bridge interface.
- skb gets passed up the stack.
-
In macvlan case, macvlan driver retains clone(s) of the mcast skb and schedules a work queue to send them out on the lower devices.
The clone skb->_nfct is not a copy, it is the same entry as the original skb. The macvlan rx handler then returns RX_HANDLER_PASS. 5. Normal conntrack hooks (in NF_INET_LOCAL_IN) confirm the orig skb.
The Macvlan broadcast worker and normal confirm path will race.
This race will not happen if step 2 already confirmed a clone. In that case later steps perform skb_clone() with skb->_nfct already confirmed (in hash table). This works fine.
But such confirmation won't happen when eb/ip/nftables rules dropped the packets before they reached the nf_confirm step in postrouting.
Pablo points out that nf_conntrack_bridge doesn't allow use of stateful nat, so we can safely discard the nf_conn entry and let inet call conntrack again.
This doesn't work for bridge netfilter: skb could have a nat transformation. Also bridge nf prevents re-invocation of inet prerouting via 'sabotage_in' hook.
Work around this problem by explicit confirmation of the entry at LOCAL_IN time, before upper layer has a chance to clone the unconfirmed entry.
The downside is that this disables NAT and conntrack helpers.
Alternative fix would be to add locking to all code parts that deal with unconfirmed packets, but even if that could be done in a sane way this opens up other problems, for example:
-m physdev --physdev-out eth0 -j SNAT --snat-to 1.2.3.4 -m physdev --physdev-out eth1 -j SNAT --snat-to 1.2.3.5
For multicast case, only one of such conflicting mappings will be created, conntrack only handles 1:1 NAT mappings.
Users should set create a setup that explicitly marks such traffic NOTRACK (conntrack bypass) to avoid this, but we cannot auto-bypass them, ruleset might have accept rules for untracked traffic already, so user-visible behaviour would change.(CVE-2024-27415)
In the Linux kernel, the following vulnerability has been resolved:
usb: typec: altmodes/displayport: create sysfs nodes as driver's default device attribute group
The DisplayPort driver's sysfs nodes may be present to the userspace before typec_altmode_set_drvdata() completes in dp_altmode_probe. This means that a sysfs read can trigger a NULL pointer error by deferencing dp->hpd in hpd_show or dp->lock in pin_assignment_show, as dev_get_drvdata() returns NULL in those cases.
Remove manual sysfs node creation in favor of adding attribute group as default for devices bound to the driver. The ATTRIBUTE_GROUPS() macro is not used here otherwise the path to the sysfs nodes is no longer compliant with the ABI.(CVE-2024-35790)
In the Linux kernel, the following vulnerability has been resolved:
PCI/PM: Drain runtime-idle callbacks before driver removal
A race condition between the .runtime_idle() callback and the .remove() callback in the rtsx_pcr PCI driver leads to a kernel crash due to an unhandled page fault [1].
The problem is that rtsx_pci_runtime_idle() is not expected to be running after pm_runtime_get_sync() has been called, but the latter doesn't really guarantee that. It only guarantees that the suspend and resume callbacks will not be running when it returns.
However, if a .runtime_idle() callback is already running when pm_runtime_get_sync() is called, the latter will notice that the runtime PM status of the device is RPM_ACTIVE and it will return right away without waiting for the former to complete. In fact, it cannot wait for .runtime_idle() to complete because it may be called from that callback (it arguably does not make much sense to do that, but it is not strictly prohibited).
Thus in general, whoever is providing a .runtime_idle() callback needs to protect it from running in parallel with whatever code runs after pm_runtime_get_sync(). [Note that .runtime_idle() will not start after pm_runtime_get_sync() has returned, but it may continue running then if it has started earlier.]
One way to address that race condition is to call pm_runtime_barrier() after pm_runtime_get_sync() (not before it, because a nonzero value of the runtime PM usage counter is necessary to prevent runtime PM callbacks from being invoked) to wait for the .runtime_idle() callback to complete should it be running at that point. A suitable place for doing that is in pci_device_remove() which calls pm_runtime_get_sync() before removing the driver, so it may as well call pm_runtime_barrier() subsequently, which will prevent the race in question from occurring, not just in the rtsx_pcr driver, but in any PCI drivers providing .runtime_idle() callbacks.(CVE-2024-35809)
In the Linux kernel, the following vulnerability has been resolved:
mlxsw: spectrum_acl_tcam: Fix memory leak during rehash
The rehash delayed work migrates filters from one region to another. This is done by iterating over all chunks (all the filters with the same priority) in the region and in each chunk iterating over all the filters.
If the migration fails, the code tries to migrate the filters back to the old region. However, the rollback itself can also fail in which case another migration will be erroneously performed. Besides the fact that this ping pong is not a very good idea, it also creates a problem.
Each virtual chunk references two chunks: The currently used one ('vchunk->chunk') and a backup ('vchunk->chunk2'). During migration the first holds the chunk we want to migrate filters to and the second holds the chunk we are migrating filters from.
The code currently assumes - but does not verify - that the backup chunk does not exist (NULL) if the currently used chunk does not reference the target region. This assumption breaks when we are trying to rollback a rollback, resulting in the backup chunk being overwritten and leaked [1].
Fix by not rolling back a failed rollback and add a warning to avoid future cases.
[1] WARNING: CPU: 5 PID: 1063 at lib/parman.c:291 parman_destroy+0x17/0x20 Modules linked in: CPU: 5 PID: 1063 Comm: kworker/5:11 Tainted: G W 6.9.0-rc2-custom-00784-gc6a05c468a0b #14 Hardware name: Mellanox Technologies Ltd. MSN3700/VMOD0005, BIOS 5.11 01/06/2019 Workqueue: mlxsw_core mlxsw_sp_acl_tcam_vregion_rehash_work RIP: 0010:parman_destroy+0x17/0x20 [...] Call Trace: <TASK> mlxsw_sp_acl_atcam_region_fini+0x19/0x60 mlxsw_sp_acl_tcam_region_destroy+0x49/0xf0 mlxsw_sp_acl_tcam_vregion_rehash_work+0x1f1/0x470 process_one_work+0x151/0x370 worker_thread+0x2cb/0x3e0 kthread+0xd0/0x100 ret_from_fork+0x34/0x50 ret_from_fork_asm+0x1a/0x30 </TASK>(CVE-2024-35853)
In the Linux kernel, the following vulnerability has been resolved:
mlxsw: spectrum_acl_tcam: Fix possible use-after-free during rehash
The rehash delayed work migrates filters from one region to another according to the number of available credits.
The migrated from region is destroyed at the end of the work if the number of credits is non-negative as the assumption is that this is indicative of migration being complete. This assumption is incorrect as a non-negative number of credits can also be the result of a failed migration.
The destruction of a region that still has filters referencing it can result in a use-after-free [1].
Fix by not destroying the region if migration failed.
[1] BUG: KASAN: slab-use-after-free in mlxsw_sp_acl_ctcam_region_entry_remove+0x21d/0x230 Read of size 8 at addr ffff8881735319e8 by task kworker/0:31/3858
CPU: 0 PID: 3858 Comm: kworker/0:31 Tainted: G W 6.9.0-rc2-custom-00782-gf2275c2157d8 #5 Hardware name: Mellanox Technologies Ltd. MSN3700/VMOD0005, BIOS 5.11 01/06/2019 Workqueue: mlxsw_core mlxsw_sp_acl_tcam_vregion_rehash_work Call Trace: <TASK> dump_stack_lvl+0xc6/0x120 print_report+0xce/0x670 kasan_report+0xd7/0x110 mlxsw_sp_acl_ctcam_region_entry_remove+0x21d/0x230 mlxsw_sp_acl_ctcam_entry_del+0x2e/0x70 mlxsw_sp_acl_atcam_entry_del+0x81/0x210 mlxsw_sp_acl_tcam_vchunk_migrate_all+0x3cd/0xb50 mlxsw_sp_acl_tcam_vregion_rehash_work+0x157/0x1300 process_one_work+0x8eb/0x19b0 worker_thread+0x6c9/0xf70 kthread+0x2c9/0x3b0 ret_from_fork+0x4d/0x80 ret_from_fork_asm+0x1a/0x30 </TASK>
Allocated by task 174: kasan_save_stack+0x33/0x60 kasan_save_track+0x14/0x30 __kasan_kmalloc+0x8f/0xa0 __kmalloc+0x19c/0x360 mlxsw_sp_acl_tcam_region_create+0xdf/0x9c0 mlxsw_sp_acl_tcam_vregion_rehash_work+0x954/0x1300 process_one_work+0x8eb/0x19b0 worker_thread+0x6c9/0xf70 kthread+0x2c9/0x3b0 ret_from_fork+0x4d/0x80 ret_from_fork_asm+0x1a/0x30
Freed by task 7: kasan_save_stack+0x33/0x60 kasan_save_track+0x14/0x30 kasan_save_free_info+0x3b/0x60 poison_slab_object+0x102/0x170 __kasan_slab_free+0x14/0x30 kfree+0xc1/0x290 mlxsw_sp_acl_tcam_region_destroy+0x272/0x310 mlxsw_sp_acl_tcam_vregion_rehash_work+0x731/0x1300 process_one_work+0x8eb/0x19b0 worker_thread+0x6c9/0xf70 kthread+0x2c9/0x3b0 ret_from_fork+0x4d/0x80 ret_from_fork_asm+0x1a/0x30(CVE-2024-35854)
In the Linux kernel, the following vulnerability has been resolved:
mlxsw: spectrum_acl_tcam: Fix possible use-after-free during activity update
The rule activity update delayed work periodically traverses the list of configured rules and queries their activity from the device.
As part of this task it accesses the entry pointed by 'ventry->entry', but this entry can be changed concurrently by the rehash delayed work, leading to a use-after-free [1].
Fix by closing the race and perform the activity query under the 'vregion->lock' mutex.
[1] BUG: KASAN: slab-use-after-free in mlxsw_sp_acl_tcam_flower_rule_activity_get+0x121/0x140 Read of size 8 at addr ffff8881054ed808 by task kworker/0:18/181
CPU: 0 PID: 181 Comm: kworker/0:18 Not tainted 6.9.0-rc2-custom-00781-gd5ab772d32f7 #2 Hardware name: Mellanox Technologies Ltd. MSN3700/VMOD0005, BIOS 5.11 01/06/2019 Workqueue: mlxsw_core mlxsw_sp_acl_rule_activity_update_work Call Trace: <TASK> dump_stack_lvl+0xc6/0x120 print_report+0xce/0x670 kasan_report+0xd7/0x110 mlxsw_sp_acl_tcam_flower_rule_activity_get+0x121/0x140 mlxsw_sp_acl_rule_activity_update_work+0x219/0x400 process_one_work+0x8eb/0x19b0 worker_thread+0x6c9/0xf70 kthread+0x2c9/0x3b0 ret_from_fork+0x4d/0x80 ret_from_fork_asm+0x1a/0x30 </TASK>
Allocated by task 1039: kasan_save_stack+0x33/0x60 kasan_save_track+0x14/0x30 __kasan_kmalloc+0x8f/0xa0 __kmalloc+0x19c/0x360 mlxsw_sp_acl_tcam_entry_create+0x7b/0x1f0 mlxsw_sp_acl_tcam_vchunk_migrate_all+0x30d/0xb50 mlxsw_sp_acl_tcam_vregion_rehash_work+0x157/0x1300 process_one_work+0x8eb/0x19b0 worker_thread+0x6c9/0xf70 kthread+0x2c9/0x3b0 ret_from_fork+0x4d/0x80 ret_from_fork_asm+0x1a/0x30
Freed by task 1039: kasan_save_stack+0x33/0x60 kasan_save_track+0x14/0x30 kasan_save_free_info+0x3b/0x60 poison_slab_object+0x102/0x170 __kasan_slab_free+0x14/0x30 kfree+0xc1/0x290 mlxsw_sp_acl_tcam_vchunk_migrate_all+0x3d7/0xb50 mlxsw_sp_acl_tcam_vregion_rehash_work+0x157/0x1300 process_one_work+0x8eb/0x19b0 worker_thread+0x6c9/0xf70 kthread+0x2c9/0x3b0 ret_from_fork+0x4d/0x80 ret_from_fork_asm+0x1a/0x30(CVE-2024-35855)
In the Linux kernel, the following vulnerability has been resolved:
ipv6: Fix infinite recursion in fib6_dump_done().
syzkaller reported infinite recursive calls of fib6_dump_done() during netlink socket destruction. [1]
From the log, syzkaller sent an AF_UNSPEC RTM_GETROUTE message, and then the response was generated. The following recvmmsg() resumed the dump for IPv6, but the first call of inet6_dump_fib() failed at kzalloc() due to the fault injection. [0]
12:01:34 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, ... snip ...) recvmmsg(r0, ... snip ...) (fail_nth: 8)
Here, fib6_dump_done() was set to nlk_sk(sk)->cb.done, and the next call of inet6_dump_fib() set it to nlk_sk(sk)->cb.args[3]. syzkaller stopped receiving the response halfway through, and finally netlink_sock_destruct() called nlk_sk(sk)->cb.done().
fib6_dump_done() calls fib6_dump_end() and nlk_sk(sk)->cb.done() if it is still not NULL. fib6_dump_end() rewrites nlk_sk(sk)->cb.done() by nlk_sk(sk)->cb.args[3], but it has the same function, not NULL, calling itself recursively and hitting the stack guard page.
To avoid the issue, let's set the destructor after kzalloc().
[0]: FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 432110 Comm: syz-executor.3 Not tainted 6.8.0-12821-g537c2e91d354-dirty #11 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014 Call Trace: <TASK> dump_stack_lvl (lib/dump_stack.c:117) should_fail_ex (lib/fault-inject.c:52 lib/fault-inject.c:153) should_failslab (mm/slub.c:3733) kmalloc_trace (mm/slub.c:3748 mm/slub.c:3827 mm/slub.c:3992) inet6_dump_fib (./include/linux/slab.h:628 ./include/linux/slab.h:749 net/ipv6/ip6_fib.c:662) rtnl_dump_all (net/core/rtnetlink.c:4029) netlink_dump (net/netlink/af_netlink.c:2269) netlink_recvmsg (net/netlink/af_netlink.c:1988) _sysrecvmsg (net/socket.c:1046 net/socket.c:2801) _sys_recvmsg (net/socket.c:2846) do_recvmmsg (net/socket.c:2943) __x64_sys_recvmmsg (net/socket.c:3041 net/socket.c:3034 net/socket.c:3034)
[1]: BUG: TASK stack guard page was hit at 00000000f2fa9af1 (stack is 00000000b7912430..000000009a436beb) stack guard page: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 223719 Comm: kworker/1:3 Not tainted 6.8.0-12821-g537c2e91d354-dirty #11 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014 Workqueue: events netlink_sock_destruct_work RIP: 0010:fib6_dump_done (net/ipv6/ip6_fib.c:570) Code: 3c 24 e8 f3 e9 51 fd e9 28 fd ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 41 57 41 56 41 55 41 54 55 48 89 fd <53> 48 8d 5d 60 e8 b6 4d 07 fd 48 89 da 48 b8 00 00 00 00 00 fc ff RSP: 0018:ffffc9000d980000 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffffffff84405990 RCX: ffffffff844059d3 RDX: ffff8881028e0000 RSI: ffffffff84405ac2 RDI: ffff88810c02f358 RBP: ffff88810c02f358 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000224 R12: 0000000000000000 R13: ffff888007c82c78 R14: ffff888007c82c68 R15: ffff888007c82c68 FS: 0000000000000000(0000) GS:ffff88811b100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc9000d97fff8 CR3: 0000000102309002 CR4: 0000000000770ef0 PKRU: 55555554 Call Trace: <#DF> </#DF> <TASK> fib6_dump_done (net/ipv6/ip6_fib.c:572 (discriminator 1)) fib6_dump_done (net/ipv6/ip6_fib.c:572 (discriminator 1)) ... fib6_dump_done (net/ipv6/ip6_fib.c:572 (discriminator 1)) fib6_dump_done (net/ipv6/ip6_fib.c:572 (discriminator 1)) netlink_sock_destruct (net/netlink/af_netlink.c:401) __sk_destruct (net/core/sock.c:2177 (discriminator 2)) sk_destruct (net/core/sock.c:2224) __sk_free (net/core/sock.c:2235) sk_free (net/core/sock.c:2246) process_one_work (kernel/workqueue.c:3259) worker_thread (kernel/workqueue.c:3329 kernel/workqueue. ---truncated---(CVE-2024-35886)
In the Linux kernel, the following vulnerability has been resolved:
erspan: make sure erspan_base_hdr is present in skb->head
syzbot reported a problem in ip6erspan_rcv() [1]
Issue is that ip6erspan_rcv() (and erspan_rcv()) no longer make sure erspan_base_hdr is present in skb linear part (skb->head) before getting @ver field from it.
Add the missing pskb_may_pull() calls.
v2: Reload iph pointer in erspan_rcv() after pskb_may_pull() because skb->head might have changed.
[1]
BUG: KMSAN: uninit-value in pskb_may_pull_reason include/linux/skbuff.h:2742 [inline] BUG: KMSAN: uninit-value in pskb_may_pull include/linux/skbuff.h:2756 [inline] BUG: KMSAN: uninit-value in ip6erspan_rcv net/ipv6/ip6_gre.c:541 [inline] BUG: KMSAN: uninit-value in gre_rcv+0x11f8/0x1930 net/ipv6/ip6_gre.c:610 pskb_may_pull_reason include/linux/skbuff.h:2742 [inline] pskb_may_pull include/linux/skbuff.h:2756 [inline] ip6erspan_rcv net/ipv6/ip6_gre.c:541 [inline] gre_rcv+0x11f8/0x1930 net/ipv6/ip6_gre.c:610 ip6_protocol_deliver_rcu+0x1d4c/0x2ca0 net/ipv6/ip6_input.c:438 ip6_input_finish net/ipv6/ip6_input.c:483 [inline] NF_HOOK include/linux/netfilter.h:314 [inline] ip6_input+0x15d/0x430 net/ipv6/ip6_input.c:492 ip6_mc_input+0xa7e/0xc80 net/ipv6/ip6_input.c:586 dst_input include/net/dst.h:460 [inline] ip6_rcv_finish+0x955/0x970 net/ipv6/ip6_input.c:79 NF_HOOK include/linux/netfilter.h:314 [inline] ipv6_rcv+0xde/0x390 net/ipv6/ip6_input.c:310 __netif_receive_skb_one_core net/core/dev.c:5538 [inline] __netif_receive_skb+0x1da/0xa00 net/core/dev.c:5652 netif_receive_skb_internal net/core/dev.c:5738 [inline] netif_receive_skb+0x58/0x660 net/core/dev.c:5798 tun_rx_batched+0x3ee/0x980 drivers/net/tun.c:1549 tun_get_user+0x5566/0x69e0 drivers/net/tun.c:2002 tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048 call_write_iter include/linux/fs.h:2108 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0xb63/0x1520 fs/read_write.c:590 ksys_write+0x20f/0x4c0 fs/read_write.c:643 __do_sys_write fs/read_write.c:655 [inline] __se_sys_write fs/read_write.c:652 [inline] __x64_sys_write+0x93/0xe0 fs/read_write.c:652 do_syscall_64+0xd5/0x1f0 entry_SYSCALL_64_after_hwframe+0x6d/0x75
Uninit was created at: slab_post_alloc_hook mm/slub.c:3804 [inline] slab_alloc_node mm/slub.c:3845 [inline] kmem_cache_alloc_node+0x613/0xc50 mm/slub.c:3888 kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:577 __alloc_skb+0x35b/0x7a0 net/core/skbuff.c:668 alloc_skb include/linux/skbuff.h:1318 [inline] alloc_skb_with_frags+0xc8/0xbf0 net/core/skbuff.c:6504 sock_alloc_send_pskb+0xa81/0xbf0 net/core/sock.c:2795 tun_alloc_skb drivers/net/tun.c:1525 [inline] tun_get_user+0x209a/0x69e0 drivers/net/tun.c:1846 tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048 call_write_iter include/linux/fs.h:2108 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0xb63/0x1520 fs/read_write.c:590 ksys_write+0x20f/0x4c0 fs/read_write.c:643 __do_sys_write fs/read_write.c:655 [inline] __se_sys_write fs/read_write.c:652 [inline] __x64_sys_write+0x93/0xe0 fs/read_write.c:652 do_syscall_64+0xd5/0x1f0 entry_SYSCALL_64_after_hwframe+0x6d/0x75
CPU: 1 PID: 5045 Comm: syz-executor114 Not tainted 6.9.0-rc1-syzkaller-00021-g962490525cff #0(CVE-2024-35888)
In the Linux kernel, the following vulnerability has been resolved:
bpf, sockmap: Prevent lock inversion deadlock in map delete elem
syzkaller started using corpuses where a BPF tracing program deletes elements from a sockmap/sockhash map. Because BPF tracing programs can be invoked from any interrupt context, locks taken during a map_delete_elem operation must be hardirq-safe. Otherwise a deadlock due to lock inversion is possible, as reported by lockdep:
CPU0 CPU1
---- ----
lock(&htab->buckets[i].lock); local_irq_disable(); lock(&host->lock); lock(&htab->buckets[i].lock); <Interrupt> lock(&host->lock);
Locks in sockmap are hardirq-unsafe by design. We expects elements to be deleted from sockmap/sockhash only in task (normal) context with interrupts enabled, or in softirq context.
Detect when map_delete_elem operation is invoked from a context which is not hardirq-unsafe, that is interrupts are disabled, and bail out with an error.
Note that map updates are not affected by this issue. BPF verifier does not allow updating sockmap/sockhash from a BPF tracing program today.(CVE-2024-35895)
In the Linux kernel, the following vulnerability has been resolved:
netfilter: validate user input for expected length
I got multiple syzbot reports showing old bugs exposed by BPF after commit 20f2505fb436 ("bpf: Try to avoid kzalloc in cgroup/{s,g}etsockopt")
setsockopt() @optlen argument should be taken into account before copying data.
BUG: KASAN: slab-out-of-bounds in copy_from_sockptr_offset include/linux/sockptr.h:49 [inline] BUG: KASAN: slab-out-of-bounds in copy_from_sockptr include/linux/sockptr.h:55 [inline] BUG: KASAN: slab-out-of-bounds in do_replace net/ipv4/netfilter/ip_tables.c:1111 [inline] BUG: KASAN: slab-out-of-bounds in do_ipt_set_ctl+0x902/0x3dd0 net/ipv4/netfilter/ip_tables.c:1627 Read of size 96 at addr ffff88802cd73da0 by task syz-executor.4/7238
CPU: 1 PID: 7238 Comm: syz-executor.4 Not tainted 6.9.0-rc2-next-20240403-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 print_address_description mm/kasan/report.c:377 [inline] print_report+0x169/0x550 mm/kasan/report.c:488 kasan_report+0x143/0x180 mm/kasan/report.c:601 kasan_check_range+0x282/0x290 mm/kasan/generic.c:189 __asan_memcpy+0x29/0x70 mm/kasan/shadow.c:105 copy_from_sockptr_offset include/linux/sockptr.h:49 [inline] copy_from_sockptr include/linux/sockptr.h:55 [inline] do_replace net/ipv4/netfilter/ip_tables.c:1111 [inline] do_ipt_set_ctl+0x902/0x3dd0 net/ipv4/netfilter/ip_tables.c:1627 nf_setsockopt+0x295/0x2c0 net/netfilter/nf_sockopt.c:101 do_sock_setsockopt+0x3af/0x720 net/socket.c:2311 __sys_setsockopt+0x1ae/0x250 net/socket.c:2334 __do_sys_setsockopt net/socket.c:2343 [inline] __se_sys_setsockopt net/socket.c:2340 [inline] __x64_sys_setsockopt+0xb5/0xd0 net/socket.c:2340 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x72/0x7a RIP: 0033:0x7fd22067dde9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fd21f9ff0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007fd2207abf80 RCX: 00007fd22067dde9 RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007fd2206ca47a R08: 0000000000000001 R09: 0000000000000000 R10: 0000000020000880 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fd2207abf80 R15: 00007ffd2d0170d8 </TASK>
Allocated by task 7238: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:370 [inline] __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:387 kasan_kmalloc include/linux/kasan.h:211 [inline] __do_kmalloc_node mm/slub.c:4069 [inline] __kmalloc_noprof+0x200/0x410 mm/slub.c:4082 kmalloc_noprof include/linux/slab.h:664 [inline] __cgroup_bpf_run_filter_setsockopt+0xd47/0x1050 kernel/bpf/cgroup.c:1869 do_sock_setsockopt+0x6b4/0x720 net/socket.c:2293 __sys_setsockopt+0x1ae/0x250 net/socket.c:2334 __do_sys_setsockopt net/socket.c:2343 [inline] __se_sys_setsockopt net/socket.c:2340 [inline] __x64_sys_setsockopt+0xb5/0xd0 net/socket.c:2340 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x72/0x7a
The buggy address belongs to the object at ffff88802cd73da0 which belongs to the cache kmalloc-8 of size 8 The buggy address is located 0 bytes inside of allocated 1-byte region [ffff88802cd73da0, ffff88802cd73da1)
The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88802cd73020 pfn:0x2cd73 flags: 0xfff80000000000(node=0|zone=1|lastcpupid=0xfff) page_type: 0xffffefff(slab) raw: 00fff80000000000 ffff888015041280 dead000000000100 dead000000000122 raw: ffff88802cd73020 000000008080007f 00000001ffffefff 00 ---truncated---(CVE-2024-35896)
In the Linux kernel, the following vulnerability has been resolved:
bpf: Protect against int overflow for stack access size
This patch re-introduces protection against the size of access to stack memory being negative; the access size can appear negative as a result of overflowing its signed int representation. This should not actually happen, as there are other protections along the way, but we should protect against it anyway. One code path was missing such protections (fixed in the previous patch in the series), causing out-of-bounds array accesses in check_stack_range_initialized(). This patch causes the verification of a program with such a non-sensical access size to fail.
This check used to exist in a more indirect way, but was inadvertendly removed in a833a17aeac7.(CVE-2024-35905)
In the Linux kernel, the following vulnerability has been resolved:
nfc: nci: Fix uninit-value in nci_dev_up and nci_ntf_packet
syzbot reported the following uninit-value access issue [1][2]:
nci_rx_work() parses and processes received packet. When the payload length is zero, each message type handler reads uninitialized payload and KMSAN detects this issue. The receipt of a packet with a zero-size payload is considered unexpected, and therefore, such packets should be silently discarded.
This patch resolved this issue by checking payload size before calling each message type handler codes.(CVE-2024-35915)
In the Linux kernel, the following vulnerability has been resolved:
usb: typec: ucsi: Limit read size on v1.2
Between UCSI 1.2 and UCSI 2.0, the size of the MESSAGE_IN region was increased from 16 to 256. In order to avoid overflowing reads for older systems, add a mechanism to use the read UCSI version to truncate read sizes on UCSI v1.2.(CVE-2024-35924)
In the Linux kernel, the following vulnerability has been resolved:
block: prevent division by zero in blk_rq_stat_sum()
The expression dst->nr_samples + src->nr_samples may have zero value on overflow. It is necessary to add a check to avoid division by zero.
Found by Linux Verification Center (linuxtesting.org) with Svace.(CVE-2024-35925)
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: SCO: Fix not validating setsockopt user input
syzbot reported sco_sock_setsockopt() is copying data without checking user input length.
BUG: KASAN: slab-out-of-bounds in copy_from_sockptr_offset include/linux/sockptr.h:49 [inline] BUG: KASAN: slab-out-of-bounds in copy_from_sockptr include/linux/sockptr.h:55 [inline] BUG: KASAN: slab-out-of-bounds in sco_sock_setsockopt+0xc0b/0xf90 net/bluetooth/sco.c:893 Read of size 4 at addr ffff88805f7b15a3 by task syz-executor.5/12578(CVE-2024-35967)
In the Linux kernel, the following vulnerability has been resolved:
geneve: fix header validation in geneve[6]_xmit_skb
syzbot is able to trigger an uninit-value in geneve_xmit() [1]
Problem : While most ip tunnel helpers (like ip_tunnel_get_dsfield()) uses skb_protocol(skb, true), pskb_inet_may_pull() is only using skb->protocol.
If anything else than ETH_P_IPV6 or ETH_P_IP is found in skb->protocol, pskb_inet_may_pull() does nothing at all.
If a vlan tag was provided by the caller (af_packet in the syzbot case), the network header might not point to the correct location, and skb linear part could be smaller than expected.
Add skb_vlan_inet_prepare() to perform a complete mac validation.
Use this in geneve for the moment, I suspect we need to adopt this more broadly.
v4 - Jakub reported v3 broke l2_tos_ttl_inherit.sh selftest - Only call __vlan_get_protocol() for vlan types.
v2,v3 - Addressed Sabrina comments on v1 and v2
[1]
BUG: KMSAN: uninit-value in geneve_xmit_skb drivers/net/geneve.c:910 [inline] BUG: KMSAN: uninit-value in geneve_xmit+0x302d/0x5420 drivers/net/geneve.c:1030 geneve_xmit_skb drivers/net/geneve.c:910 [inline] geneve_xmit+0x302d/0x5420 drivers/net/geneve.c:1030 __netdev_start_xmit include/linux/netdevice.h:4903 [inline] netdev_start_xmit include/linux/netdevice.h:4917 [inline] xmit_one net/core/dev.c:3531 [inline] dev_hard_start_xmit+0x247/0xa20 net/core/dev.c:3547 __dev_queue_xmit+0x348d/0x52c0 net/core/dev.c:4335 dev_queue_xmit include/linux/netdevice.h:3091 [inline] packet_xmit+0x9c/0x6c0 net/packet/af_packet.c:276 packet_snd net/packet/af_packet.c:3081 [inline] packet_sendmsg+0x8bb0/0x9ef0 net/packet/af_packet.c:3113 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x30f/0x380 net/socket.c:745 __sys_sendto+0x685/0x830 net/socket.c:2191 __do_sys_sendto net/socket.c:2203 [inline] __se_sys_sendto net/socket.c:2199 [inline] __x64_sys_sendto+0x125/0x1d0 net/socket.c:2199 do_syscall_64+0xd5/0x1f0 entry_SYSCALL_64_after_hwframe+0x6d/0x75
Uninit was created at: slab_post_alloc_hook mm/slub.c:3804 [inline] slab_alloc_node mm/slub.c:3845 [inline] kmem_cache_alloc_node+0x613/0xc50 mm/slub.c:3888 kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:577 __alloc_skb+0x35b/0x7a0 net/core/skbuff.c:668 alloc_skb include/linux/skbuff.h:1318 [inline] alloc_skb_with_frags+0xc8/0xbf0 net/core/skbuff.c:6504 sock_alloc_send_pskb+0xa81/0xbf0 net/core/sock.c:2795 packet_alloc_skb net/packet/af_packet.c:2930 [inline] packet_snd net/packet/af_packet.c:3024 [inline] packet_sendmsg+0x722d/0x9ef0 net/packet/af_packet.c:3113 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x30f/0x380 net/socket.c:745 __sys_sendto+0x685/0x830 net/socket.c:2191 __do_sys_sendto net/socket.c:2203 [inline] __se_sys_sendto net/socket.c:2199 [inline] __x64_sys_sendto+0x125/0x1d0 net/socket.c:2199 do_syscall_64+0xd5/0x1f0 entry_SYSCALL_64_after_hwframe+0x6d/0x75
CPU: 0 PID: 5033 Comm: syz-executor346 Not tainted 6.9.0-rc1-syzkaller-00005-g928a87efa423 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024(CVE-2024-35973)
In the Linux kernel, the following vulnerability has been resolved:
ipv4: check for NULL idev in ip_route_use_hint()
syzbot was able to trigger a NULL deref in fib_validate_source() in an old tree [1].
It appears the bug exists in latest trees.
All calls to __in_dev_get_rcu() must be checked for a NULL result.
[1] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 2 PID: 3257 Comm: syz-executor.3 Not tainted 5.10.0-syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:fib_validate_source+0xbf/0x15a0 net/ipv4/fib_frontend.c:425 Code: 18 f2 f2 f2 f2 42 c7 44 20 23 f3 f3 f3 f3 48 89 44 24 78 42 c6 44 20 27 f3 e8 5d 88 48 fc 4c 89 e8 48 c1 e8 03 48 89 44 24 18 <42> 80 3c 20 00 74 08 4c 89 ef e8 d2 15 98 fc 48 89 5c 24 10 41 bf RSP: 0018:ffffc900015fee40 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88800f7a4000 RCX: ffff88800f4f90c0 RDX: 0000000000000000 RSI: 0000000004001eac RDI: ffff8880160c64c0 RBP: ffffc900015ff060 R08: 0000000000000000 R09: ffff88800f7a4000 R10: 0000000000000002 R11: ffff88800f4f90c0 R12: dffffc0000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffff88800f7a4000 FS: 00007f938acfe6c0(0000) GS:ffff888058c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f938acddd58 CR3: 000000001248e000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ip_route_use_hint+0x410/0x9b0 net/ipv4/route.c:2231 ip_rcv_finish_core+0x2c4/0x1a30 net/ipv4/ip_input.c:327 ip_list_rcv_finish net/ipv4/ip_input.c:612 [inline] ip_sublist_rcv+0x3ed/0xe50 net/ipv4/ip_input.c:638 ip_list_rcv+0x422/0x470 net/ipv4/ip_input.c:673 __netif_receive_skb_list_ptype net/core/dev.c:5572 [inline] __netif_receive_skb_list_core+0x6b1/0x890 net/core/dev.c:5620 __netif_receive_skb_list net/core/dev.c:5672 [inline] netif_receive_skb_list_internal+0x9f9/0xdc0 net/core/dev.c:5764 netif_receive_skb_list+0x55/0x3e0 net/core/dev.c:5816 xdp_recv_frames net/bpf/test_run.c:257 [inline] xdp_test_run_batch net/bpf/test_run.c:335 [inline] bpf_test_run_xdp_live+0x1818/0x1d00 net/bpf/test_run.c:363 bpf_prog_test_run_xdp+0x81f/0x1170 net/bpf/test_run.c:1376 bpf_prog_test_run+0x349/0x3c0 kernel/bpf/syscall.c:3736 __sys_bpf+0x45c/0x710 kernel/bpf/syscall.c:5115 __do_sys_bpf kernel/bpf/syscall.c:5201 [inline] __se_sys_bpf kernel/bpf/syscall.c:5199 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5199(CVE-2024-36008)
In the Linux kernel, the following vulnerability has been resolved:
rtnetlink: Correct nested IFLA_VF_VLAN_LIST attribute validation
Each attribute inside a nested IFLA_VF_VLAN_LIST is assumed to be a struct ifla_vf_vlan_info so the size of such attribute needs to be at least of sizeof(struct ifla_vf_vlan_info) which is 14 bytes. The current size validation in do_setvfinfo is against NLA_HDRLEN (4 bytes) which is less than sizeof(struct ifla_vf_vlan_info) so this validation is not enough and a too small attribute might be cast to a struct ifla_vf_vlan_info, this might result in an out of bands read access when accessing the saved (casted) entry in ivvl.(CVE-2024-36017)
In the Linux kernel, the following vulnerability has been resolved:
net: hns3: fix kernel crash when devlink reload during pf initialization
The devlink reload process will access the hardware resources, but the register operation is done before the hardware is initialized. So, processing the devlink reload during initialization may lead to kernel crash. This patch fixes this by taking devl_lock during initialization.(CVE-2024-36021)
In the Linux kernel, the following vulnerability has been resolved:
mmc: sdhci-msm: pervent access to suspended controller
Generic sdhci code registers LED device and uses host->runtime_suspended flag to protect access to it. The sdhci-msm driver doesn't set this flag, which causes a crash when LED is accessed while controller is runtime suspended. Fix this by setting the flag correctly.(CVE-2024-36029)
In the Linux kernel, the following vulnerability has been resolved:
net: fix out-of-bounds access in ops_init
net_alloc_generic is called by net_alloc, which is called without any locking. It reads max_gen_ptrs, which is changed under pernet_ops_rwsem. It is read twice, first to allocate an array, then to set s.len, which is later used to limit the bounds of the array access.
It is possible that the array is allocated and another thread is registering a new pernet ops, increments max_gen_ptrs, which is then used to set s.len with a larger than allocated length for the variable array.
Fix it by reading max_gen_ptrs only once in net_alloc_generic. If max_gen_ptrs is later incremented, it will be caught in net_assign_generic.(CVE-2024-36883)
In the Linux kernel, the following vulnerability has been resolved:
tipc: fix UAF in error path
Sam Page (sam4k) working with Trend Micro Zero Day Initiative reported a UAF in the tipc_buf_append() error path:
BUG: KASAN: slab-use-after-free in kfree_skb_list_reason+0x47e/0x4c0 linux/net/core/skbuff.c:1183 Read of size 8 at addr ffff88804d2a7c80 by task poc/8034
CPU: 1 PID: 8034 Comm: poc Not tainted 6.8.2 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-debian-1.16.0-5 04/01/2014 Call Trace: <IRQ> __dump_stack linux/lib/dump_stack.c:88 dump_stack_lvl+0xd9/0x1b0 linux/lib/dump_stack.c:106 print_address_description linux/mm/kasan/report.c:377 print_report+0xc4/0x620 linux/mm/kasan/report.c:488 kasan_report+0xda/0x110 linux/mm/kasan/report.c:601 kfree_skb_list_reason+0x47e/0x4c0 linux/net/core/skbuff.c:1183 skb_release_data+0x5af/0x880 linux/net/core/skbuff.c:1026 skb_release_all linux/net/core/skbuff.c:1094 __kfree_skb linux/net/core/skbuff.c:1108 kfree_skb_reason+0x12d/0x210 linux/net/core/skbuff.c:1144 kfree_skb linux/./include/linux/skbuff.h:1244 tipc_buf_append+0x425/0xb50 linux/net/tipc/msg.c:186 tipc_link_input+0x224/0x7c0 linux/net/tipc/link.c:1324 tipc_link_rcv+0x76e/0x2d70 linux/net/tipc/link.c:1824 tipc_rcv+0x45f/0x10f0 linux/net/tipc/node.c:2159 tipc_udp_recv+0x73b/0x8f0 linux/net/tipc/udp_media.c:390 udp_queue_rcv_one_skb+0xad2/0x1850 linux/net/ipv4/udp.c:2108 udp_queue_rcv_skb+0x131/0xb00 linux/net/ipv4/udp.c:2186 udp_unicast_rcv_skb+0x165/0x3b0 linux/net/ipv4/udp.c:2346 __udp4_lib_rcv+0x2594/0x3400 linux/net/ipv4/udp.c:2422 ip_protocol_deliver_rcu+0x30c/0x4e0 linux/net/ipv4/ip_input.c:205 ip_local_deliver_finish+0x2e4/0x520 linux/net/ipv4/ip_input.c:233 NF_HOOK linux/./include/linux/netfilter.h:314 NF_HOOK linux/./include/linux/netfilter.h:308 ip_local_deliver+0x18e/0x1f0 linux/net/ipv4/ip_input.c:254 dst_input linux/./include/net/dst.h:461 ip_rcv_finish linux/net/ipv4/ip_input.c:449 NF_HOOK linux/./include/linux/netfilter.h:314 NF_HOOK linux/./include/linux/netfilter.h:308 ip_rcv+0x2c5/0x5d0 linux/net/ipv4/ip_input.c:569 __netif_receive_skb_one_core+0x199/0x1e0 linux/net/core/dev.c:5534 __netif_receive_skb+0x1f/0x1c0 linux/net/core/dev.c:5648 process_backlog+0x101/0x6b0 linux/net/core/dev.c:5976 __napi_poll.constprop.0+0xba/0x550 linux/net/core/dev.c:6576 napi_poll linux/net/core/dev.c:6645 net_rx_action+0x95a/0xe90 linux/net/core/dev.c:6781 __do_softirq+0x21f/0x8e7 linux/kernel/softirq.c:553 do_softirq linux/kernel/softirq.c:454 do_softirq+0xb2/0xf0 linux/kernel/softirq.c:441 </IRQ> <TASK> __local_bh_enable_ip+0x100/0x120 linux/kernel/softirq.c:381 local_bh_enable linux/./include/linux/bottom_half.h:33 rcu_read_unlock_bh linux/./include/linux/rcupdate.h:851 __dev_queue_xmit+0x871/0x3ee0 linux/net/core/dev.c:4378 dev_queue_xmit linux/./include/linux/netdevice.h:3169 neigh_hh_output linux/./include/net/neighbour.h:526 neigh_output linux/./include/net/neighbour.h:540 ip_finish_output2+0x169f/0x2550 linux/net/ipv4/ip_output.c:235 __ip_finish_output linux/net/ipv4/ip_output.c:313 __ip_finish_output+0x49e/0x950 linux/net/ipv4/ip_output.c:295 ip_finish_output+0x31/0x310 linux/net/ipv4/ip_output.c:323 NF_HOOK_COND linux/./include/linux/netfilter.h:303 ip_output+0x13b/0x2a0 linux/net/ipv4/ip_output.c:433 dst_output linux/./include/net/dst.h:451 ip_local_out linux/net/ipv4/ip_output.c:129 ip_send_skb+0x3e5/0x560 linux/net/ipv4/ip_output.c:1492 udp_send_skb+0x73f/0x1530 linux/net/ipv4/udp.c:963 udp_sendmsg+0x1a36/0x2b40 linux/net/ipv4/udp.c:1250 inet_sendmsg+0x105/0x140 linux/net/ipv4/af_inet.c:850 sock_sendmsg_nosec linux/net/socket.c:730 __sock_sendmsg linux/net/socket.c:745 __sys_sendto+0x42c/0x4e0 linux/net/socket.c:2191 __do_sys_sendto linux/net/socket.c:2203 __se_sys_sendto linux/net/socket.c:2199 __x64_sys_sendto+0xe0/0x1c0 linux/net/socket.c:2199 do_syscall_x64 linux/arch/x86/entry/common.c:52 do_syscall_ ---truncated---(CVE-2024-36886)
In the Linux kernel, the following vulnerability has been resolved:
mptcp: ensure snd_nxt is properly initialized on connect
Christoph reported a splat hinting at a corrupted snd_una:
WARNING: CPU: 1 PID: 38 at net/mptcp/protocol.c:1005 __mptcp_clean_una+0x4b3/0x620 net/mptcp/protocol.c:1005 Modules linked in: CPU: 1 PID: 38 Comm: kworker/1:1 Not tainted 6.9.0-rc1-gbbeac67456c9 #59 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-2.el7 04/01/2014 Workqueue: events mptcp_worker RIP: 0010:__mptcp_clean_una+0x4b3/0x620 net/mptcp/protocol.c:1005 Code: be 06 01 00 00 bf 06 01 00 00 e8 a8 12 e7 fe e9 00 fe ff ff e8 8e 1a e7 fe 0f b7 ab 3e 02 00 00 e9 d3 fd ff ff e8 7d 1a e7 fe <0f> 0b 4c 8b bb e0 05 00 00 e9 74 fc ff ff e8 6a 1a e7 fe 0f 0b e9 RSP: 0018:ffffc9000013fd48 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff8881029bd280 RCX: ffffffff82382fe4 RDX: ffff8881003cbd00 RSI: ffffffff823833c3 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: fefefefefefefeff R12: ffff888138ba8000 R13: 0000000000000106 R14: ffff8881029bd908 R15: ffff888126560000 FS: 0000000000000000(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f604a5dae38 CR3: 0000000101dac002 CR4: 0000000000170ef0 Call Trace: <TASK> __mptcp_clean_una_wakeup net/mptcp/protocol.c:1055 [inline] mptcp_clean_una_wakeup net/mptcp/protocol.c:1062 [inline] __mptcp_retrans+0x7f/0x7e0 net/mptcp/protocol.c:2615 mptcp_worker+0x434/0x740 net/mptcp/protocol.c:2767 process_one_work+0x1e0/0x560 kernel/workqueue.c:3254 process_scheduled_works kernel/workqueue.c:3335 [inline] worker_thread+0x3c7/0x640 kernel/workqueue.c:3416 kthread+0x121/0x170 kernel/kthread.c:388 ret_from_fork+0x44/0x50 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 </TASK>
When fallback to TCP happens early on a client socket, snd_nxt is not yet initialized and any incoming ack will copy such value into snd_una. If the mptcp worker (dumbly) tries mptcp-level re-injection after such ack, that would unconditionally trigger a send buffer cleanup using 'bad' snd_una values.
We could easily disable re-injection for fallback sockets, but such dumb behavior already helped catching a few subtle issues and a very low to zero impact in practice.
Instead address the issue always initializing snd_nxt (and write_seq, for consistency) at connect time.(CVE-2024-36889)
In the Linux kernel, the following vulnerability has been resolved:
gpiolib: cdev: fix uninitialised kfifo
If a line is requested with debounce, and that results in debouncing in software, and the line is subsequently reconfigured to enable edge detection then the allocation of the kfifo to contain edge events is overlooked. This results in events being written to and read from an uninitialised kfifo. Read events are returned to userspace.
Initialise the kfifo in the case where the software debounce is already active.(CVE-2024-36898)
In the Linux kernel, the following vulnerability has been resolved:
gpiolib: cdev: Fix use after free in lineinfo_changed_notify
The use-after-free issue occurs as follows: when the GPIO chip device file is being closed by invoking gpio_chrdev_release(), watched_lines is freed by bitmap_free(), but the unregistration of lineinfo_changed_nb notifier chain failed due to waiting write rwsem. Additionally, one of the GPIO chip's lines is also in the release process and holds the notifier chain's read rwsem. Consequently, a race condition leads to the use-after-free of watched_lines.
Here is the typical stack when issue happened:
[free] gpio_chrdev_release() --> bitmap_free(cdev->watched_lines) <-- freed --> blocking_notifier_chain_unregister() --> down_write(&nh->rwsem) <-- waiting rwsem --> __down_write_common() --> rwsem_down_write_slowpath() --> schedule_preempt_disabled() --> schedule()
[use] st54spi_gpio_dev_release() --> gpio_free() --> gpiod_free() --> gpiod_free_commit() --> gpiod_line_state_notify() --> blocking_notifier_call_chain() --> down_read(&nh->rwsem); <-- held rwsem --> notifier_call_chain() --> lineinfo_changed_notify() --> test_bit(xxxx, cdev->watched_lines) <-- use after free
The side effect of the use-after-free issue is that a GPIO line event is being generated for userspace where it shouldn't. However, since the chrdev is being closed, userspace won't have the chance to read that event anyway.
To fix the issue, call the bitmap_free() function after the unregistration of lineinfo_changed_nb notifier chain.(CVE-2024-36899)
In the Linux kernel, the following vulnerability has been resolved:
ipv6: prevent NULL dereference in ip6_output()
According to syzbot, there is a chance that ip6_dst_idev() returns NULL in ip6_output(). Most places in IPv6 stack deal with a NULL idev just fine, but not here.
syzbot reported:
general protection fault, probably for non-canonical address 0xdffffc00000000bc: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x00000000000005e0-0x00000000000005e7] CPU: 0 PID: 9775 Comm: syz-executor.4 Not tainted 6.9.0-rc5-syzkaller-00157-g6a30653b604a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:ip6_output+0x231/0x3f0 net/ipv6/ip6_output.c:237 Code: 3c 1e 00 49 89 df 74 08 4c 89 ef e8 19 58 db f7 48 8b 44 24 20 49 89 45 00 49 89 c5 48 8d 9d e0 05 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 4c 8b 74 24 28 0f 85 61 01 00 00 8b 1b 31 ff RSP: 0018:ffffc9000927f0d8 EFLAGS: 00010202 RAX: 00000000000000bc RBX: 00000000000005e0 RCX: 0000000000040000 RDX: ffffc900131f9000 RSI: 0000000000004f47 RDI: 0000000000004f48 RBP: 0000000000000000 R08: ffffffff8a1f0b9a R09: 1ffffffff1f51fad R10: dffffc0000000000 R11: fffffbfff1f51fae R12: ffff8880293ec8c0 R13: ffff88805d7fc000 R14: 1ffff1100527d91a R15: dffffc0000000000 FS: 00007f135c6856c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000080 CR3: 0000000064096000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> NF_HOOK include/linux/netfilter.h:314 [inline] ip6_xmit+0xefe/0x17f0 net/ipv6/ip6_output.c:358 sctp_v6_xmit+0x9f2/0x13f0 net/sctp/ipv6.c:248 sctp_packet_transmit+0x26ad/0x2ca0 net/sctp/output.c:653 sctp_packet_singleton+0x22c/0x320 net/sctp/outqueue.c:783 sctp_outq_flush_ctrl net/sctp/outqueue.c:914 [inline] sctp_outq_flush+0x6d5/0x3e20 net/sctp/outqueue.c:1212 sctp_side_effects net/sctp/sm_sideeffect.c:1198 [inline] sctp_do_sm+0x59cc/0x60c0 net/sctp/sm_sideeffect.c:1169 sctp_primitive_ASSOCIATE+0x95/0xc0 net/sctp/primitive.c:73 __sctp_connect+0x9cd/0xe30 net/sctp/socket.c:1234 sctp_connect net/sctp/socket.c:4819 [inline] sctp_inet_connect+0x149/0x1f0 net/sctp/socket.c:4834 __sys_connect_file net/socket.c:2048 [inline] __sys_connect+0x2df/0x310 net/socket.c:2065 __do_sys_connect net/socket.c:2075 [inline] __se_sys_connect net/socket.c:2072 [inline] __x64_sys_connect+0x7a/0x90 net/socket.c:2072 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f(CVE-2024-36901)
In the Linux kernel, the following vulnerability has been resolved:
ipv6: fib6_rules: avoid possible NULL dereference in fib6_rule_action()
syzbot is able to trigger the following crash [1], caused by unsafe ip6_dst_idev() use.
Indeed ip6_dst_idev() can return NULL, and must always be checked.
[1]
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 PID: 31648 Comm: syz-executor.0 Not tainted 6.9.0-rc4-next-20240417-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:__fib6_rule_action net/ipv6/fib6_rules.c:237 [inline] RIP: 0010:fib6_rule_action+0x241/0x7b0 net/ipv6/fib6_rules.c:267 Code: 02 00 00 49 8d 9f d8 00 00 00 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 f9 32 bf f7 48 8b 1b 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 e0 32 bf f7 4c 8b 03 48 89 ef 4c RSP: 0018:ffffc9000fc1f2f0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 1a772f98c8186700 RDX: 0000000000000003 RSI: ffffffff8bcac4e0 RDI: ffffffff8c1f9760 RBP: ffff8880673fb980 R08: ffffffff8fac15ef R09: 1ffffffff1f582bd R10: dffffc0000000000 R11: fffffbfff1f582be R12: dffffc0000000000 R13: 0000000000000080 R14: ffff888076509000 R15: ffff88807a029a00 FS: 00007f55e82ca6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31d23000 CR3: 0000000022b66000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> fib_rules_lookup+0x62c/0xdb0 net/core/fib_rules.c:317 fib6_rule_lookup+0x1fd/0x790 net/ipv6/fib6_rules.c:108 ip6_route_output_flags_noref net/ipv6/route.c:2637 [inline] ip6_route_output_flags+0x38e/0x610 net/ipv6/route.c:2649 ip6_route_output include/net/ip6_route.h:93 [inline] ip6_dst_lookup_tail+0x189/0x11a0 net/ipv6/ip6_output.c:1120 ip6_dst_lookup_flow+0xb9/0x180 net/ipv6/ip6_output.c:1250 sctp_v6_get_dst+0x792/0x1e20 net/sctp/ipv6.c:326 sctp_transport_route+0x12c/0x2e0 net/sctp/transport.c:455 sctp_assoc_add_peer+0x614/0x15c0 net/sctp/associola.c:662 sctp_connect_new_asoc+0x31d/0x6c0 net/sctp/socket.c:1099 __sctp_connect+0x66d/0xe30 net/sctp/socket.c:1197 sctp_connect net/sctp/socket.c:4819 [inline] sctp_inet_connect+0x149/0x1f0 net/sctp/socket.c:4834 __sys_connect_file net/socket.c:2048 [inline] __sys_connect+0x2df/0x310 net/socket.c:2065 __do_sys_connect net/socket.c:2075 [inline] __se_sys_connect net/socket.c:2072 [inline] __x64_sys_connect+0x7a/0x90 net/socket.c:2072 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f(CVE-2024-36902)
In the Linux kernel, the following vulnerability has been resolved:
tcp: defer shutdown(SEND_SHUTDOWN) for TCP_SYN_RECV sockets
TCP_SYN_RECV state is really special, it is only used by cross-syn connections, mostly used by fuzzers.
In the following crash [1], syzbot managed to trigger a divide by zero in tcp_rcv_space_adjust()
A socket makes the following state transitions, without ever calling tcp_init_transfer(), meaning tcp_init_buffer_space() is also not called.
TCP_CLOSE
connect() TCP_SYN_SENT TCP_SYN_RECV shutdown() -> tcp_shutdown(sk, SEND_SHUTDOWN) TCP_FIN_WAIT1
To fix this issue, change tcp_shutdown() to not perform a TCP_SYN_RECV -> TCP_FIN_WAIT1 transition, which makes no sense anyway.
When tcp_rcv_state_process() later changes socket state from TCP_SYN_RECV to TCP_ESTABLISH, then look at sk->sk_shutdown to finally enter TCP_FIN_WAIT1 state, and send a FIN packet from a sane socket state.
This means tcp_send_fin() can now be called from BH context, and must use GFP_ATOMIC allocations.
[1] divide error: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 1 PID: 5084 Comm: syz-executor358 Not tainted 6.9.0-rc6-syzkaller-00022-g98369dccd2f8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:tcp_rcv_space_adjust+0x2df/0x890 net/ipv4/tcp_input.c:767 Code: e3 04 4c 01 eb 48 8b 44 24 38 0f b6 04 10 84 c0 49 89 d5 0f 85 a5 03 00 00 41 8b 8e c8 09 00 00 89 e8 29 c8 48 0f af c3 31 d2 <48> f7 f1 48 8d 1c 43 49 8d 96 76 08 00 00 48 89 d0 48 c1 e8 03 48 RSP: 0018:ffffc900031ef3f0 EFLAGS: 00010246 RAX: 0c677a10441f8f42 RBX: 000000004fb95e7e RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000027d4b11f R08: ffffffff89e535a4 R09: 1ffffffff25e6ab7 R10: dffffc0000000000 R11: ffffffff8135e920 R12: ffff88802a9f8d30 R13: dffffc0000000000 R14: ffff88802a9f8d00 R15: 1ffff1100553f2da FS: 00005555775c0380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1155bf2304 CR3: 000000002b9f2000 CR4: 0000000000350ef0 Call Trace: <TASK> tcp_recvmsg_locked+0x106d/0x25a0 net/ipv4/tcp.c:2513 tcp_recvmsg+0x25d/0x920 net/ipv4/tcp.c:2578 inet6_recvmsg+0x16a/0x730 net/ipv6/af_inet6.c:680 sock_recvmsg_nosec net/socket.c:1046 [inline] sock_recvmsg+0x109/0x280 net/socket.c:1068 _sysrecvmsg+0x1db/0x470 net/socket.c:2803 _sys_recvmsg net/socket.c:2845 [inline] do_recvmmsg+0x474/0xae0 net/socket.c:2939 __sys_recvmmsg net/socket.c:3018 [inline] __do_sys_recvmmsg net/socket.c:3041 [inline] __se_sys_recvmmsg net/socket.c:3034 [inline] __x64_sys_recvmmsg+0x199/0x250 net/socket.c:3034 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7faeb6363db9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffcc1997168 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007faeb6363db9 RDX: 0000000000000001 RSI: 0000000020000bc0 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000001c R10: 0000000000000122 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001(CVE-2024-36905)
In the Linux kernel, the following vulnerability has been resolved:
ARM: 9381/1: kasan: clear stale stack poison
We found below OOB crash:
[ 33.452494] ================================================================== [ 33.453513] BUG: KASAN: stack-out-of-bounds in refresh_cpu_vm_stats.constprop.0+0xcc/0x2ec [ 33.454660] Write of size 164 at addr c1d03d30 by task swapper/0/0 [ 33.455515] [ 33.455767] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 6.1.25-mainline #1 [ 33.456880] Hardware name: Generic DT based system [ 33.457555] unwind_backtrace from show_stack+0x18/0x1c [ 33.458326] show_stack from dump_stack_lvl+0x40/0x4c [ 33.459072] dump_stack_lvl from print_report+0x158/0x4a4 [ 33.459863] print_report from kasan_report+0x9c/0x148 [ 33.460616] kasan_report from kasan_check_range+0x94/0x1a0 [ 33.461424] kasan_check_range from memset+0x20/0x3c [ 33.462157] memset from refresh_cpu_vm_stats.constprop.0+0xcc/0x2ec [ 33.463064] refresh_cpu_vm_stats.constprop.0 from tick_nohz_idle_stop_tick+0x180/0x53c [ 33.464181] tick_nohz_idle_stop_tick from do_idle+0x264/0x354 [ 33.465029] do_idle from cpu_startup_entry+0x20/0x24 [ 33.465769] cpu_startup_entry from rest_init+0xf0/0xf4 [ 33.466528] rest_init from arch_post_acpi_subsys_init+0x0/0x18 [ 33.467397] [ 33.467644] The buggy address belongs to stack of task swapper/0/0 [ 33.468493] and is located at offset 112 in frame: [ 33.469172] refresh_cpu_vm_stats.constprop.0+0x0/0x2ec [ 33.469917] [ 33.470165] This frame has 2 objects: [ 33.470696] [32, 76) 'global_zone_diff' [ 33.470729] [112, 276) 'global_node_diff' [ 33.471294] [ 33.472095] The buggy address belongs to the physical page: [ 33.472862] page:3cd72da8 refcount:1 mapcount:0 mapping:00000000 index:0x0 pfn:0x41d03 [ 33.473944] flags: 0x1000(reserved|zone=0) [ 33.474565] raw: 00001000 ed741470 ed741470 00000000 00000000 00000000 ffffffff 00000001 [ 33.475656] raw: 00000000 [ 33.476050] page dumped because: kasan: bad access detected [ 33.476816] [ 33.477061] Memory state around the buggy address: [ 33.477732] c1d03c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 33.478630] c1d03c80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 00 00 [ 33.479526] >c1d03d00: 00 04 f2 f2 f2 f2 00 00 00 00 00 00 f1 f1 f1 f1 [ 33.480415] ^ [ 33.481195] c1d03d80: 00 00 00 00 00 00 00 00 00 00 04 f3 f3 f3 f3 f3 [ 33.482088] c1d03e00: f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 [ 33.482978] ==================================================================
We find the root cause of this OOB is that arm does not clear stale stack poison in the case of cpuidle.
This patch refer to arch/arm64/kernel/sleep.S to resolve this issue.
From cited commit [1] that explain the problem
Functions which the compiler has instrumented for KASAN place poison on the stack shadow upon entry and remove this poison prior to returning.
In the case of cpuidle, CPUs exit the kernel a number of levels deep in C code. Any instrumented functions on this critical path will leave portions of the stack shadow poisoned.
If CPUs lose context and return to the kernel via a cold path, we restore a prior context saved in __cpu_suspend_enter are forgotten, and we never remove the poison they placed in the stack shadow area by functions calls between this and the actual exit of the kernel.
Thus, (depending on stackframe layout) subsequent calls to instrumented functions may hit this stale poison, resulting in (spurious) KASAN splats to the console.
To avoid this, clear any stale poison from the idle thread for a CPU prior to bringing a CPU online.
From cited commit [2]
Extend to check for CONFIG_KASAN_STACK
[1] commit 0d97e6d8024c ("arm64: kasan: clear stale stack poison") [2] commit d56a9ef84bd0 ("kasan, arm64: unpoison stack only with CONFIG_KASAN_STACK")(CVE-2024-36906)
In the Linux kernel, the following vulnerability has been resolved:
blk-iocost: do not WARN if iocg was already offlined
In iocg_pay_debt(), warn is triggered if 'active_list' is empty, which is intended to confirm iocg is active when it has debt. However, warn can be triggered during a blkcg or disk removal, if iocg_waitq_timer_fn() is run at that time:
WARNING: CPU: 0 PID: 2344971 at block/blk-iocost.c:1402 iocg_pay_debt+0x14c/0x190 Call trace: iocg_pay_debt+0x14c/0x190 iocg_kick_waitq+0x438/0x4c0 iocg_waitq_timer_fn+0xd8/0x130 __run_hrtimer+0x144/0x45c __hrtimer_run_queues+0x16c/0x244 hrtimer_interrupt+0x2cc/0x7b0
The warn in this situation is meaningless. Since this iocg is being removed, the state of the 'active_list' is irrelevant, and 'waitq_timer' is canceled after removing 'active_list' in ioc_pd_free(), which ensures iocg is freed after iocg_waitq_timer_fn() returns.
Therefore, add the check if iocg was already offlined to avoid warn when removing a blkcg or disk.(CVE-2024-36908)
In the Linux kernel, the following vulnerability has been resolved:
scsi: lpfc: Release hbalock before calling lpfc_worker_wake_up()
lpfc_worker_wake_up() calls the lpfc_work_done() routine, which takes the hbalock. Thus, lpfc_worker_wake_up() should not be called while holding the hbalock to avoid potential deadlock.(CVE-2024-36924)
In the Linux kernel, the following vulnerability has been resolved:
net: core: reject skb_copy(_expand) for fraglist GSO skbs
SKB_GSO_FRAGLIST skbs must not be linearized, otherwise they become invalid. Return NULL if such an skb is passed to skb_copy or skb_copy_expand, in order to prevent a crash on a potential later call to skb_gso_segment.(CVE-2024-36929)
In the Linux kernel, the following vulnerability has been resolved:
amd/amdkfd: sync all devices to wait all processes being evicted
If there are more than one device doing reset in parallel, the first device will call kfd_suspend_all_processes() to evict all processes on all devices, this call takes time to finish. other device will start reset and recover without waiting. if the process has not been evicted before doing recover, it will be restored, then caused page fault.(CVE-2024-36949)
In the Linux kernel, the following vulnerability has been resolved:
octeontx2-af: avoid off-by-one read from userspace
We try to access count + 1 byte from userspace with memdup_user(buffer, count + 1). However, the userspace only provides buffer of count bytes and only these count bytes are verified to be okay to access. To ensure the copied buffer is NUL terminated, we use memdup_user_nul instead.(CVE-2024-36957)
In the Linux kernel, the following vulnerability has been resolved:
fs/9p: only translate RWX permissions for plain 9P2000
Garbage in plain 9P2000's perm bits is allowed through, which causes it to be able to set (among others) the suid bit. This was presumably not the intent since the unix extended bits are handled explicitly and conditionally on .u.(CVE-2024-36964)
{
"affected": [
{
"ecosystem_specific": {
"aarch64": [
"kernel-headers-5.10.0-136.79.0.159.oe2203sp1.aarch64.rpm",
"kernel-tools-devel-5.10.0-136.79.0.159.oe2203sp1.aarch64.rpm",
"kernel-devel-5.10.0-136.79.0.159.oe2203sp1.aarch64.rpm",
"kernel-debugsource-5.10.0-136.79.0.159.oe2203sp1.aarch64.rpm",
"perf-debuginfo-5.10.0-136.79.0.159.oe2203sp1.aarch64.rpm",
"kernel-tools-5.10.0-136.79.0.159.oe2203sp1.aarch64.rpm",
"kernel-source-5.10.0-136.79.0.159.oe2203sp1.aarch64.rpm",
"python3-perf-debuginfo-5.10.0-136.79.0.159.oe2203sp1.aarch64.rpm",
"kernel-tools-debuginfo-5.10.0-136.79.0.159.oe2203sp1.aarch64.rpm",
"perf-5.10.0-136.79.0.159.oe2203sp1.aarch64.rpm",
"python3-perf-5.10.0-136.79.0.159.oe2203sp1.aarch64.rpm",
"kernel-5.10.0-136.79.0.159.oe2203sp1.aarch64.rpm",
"kernel-debuginfo-5.10.0-136.79.0.159.oe2203sp1.aarch64.rpm"
],
"src": [
"kernel-5.10.0-136.79.0.159.oe2203sp1.src.rpm"
],
"x86_64": [
"kernel-headers-5.10.0-136.79.0.159.oe2203sp1.x86_64.rpm",
"python3-perf-debuginfo-5.10.0-136.79.0.159.oe2203sp1.x86_64.rpm",
"kernel-source-5.10.0-136.79.0.159.oe2203sp1.x86_64.rpm",
"kernel-debugsource-5.10.0-136.79.0.159.oe2203sp1.x86_64.rpm",
"kernel-tools-debuginfo-5.10.0-136.79.0.159.oe2203sp1.x86_64.rpm",
"kernel-5.10.0-136.79.0.159.oe2203sp1.x86_64.rpm",
"perf-5.10.0-136.79.0.159.oe2203sp1.x86_64.rpm",
"python3-perf-5.10.0-136.79.0.159.oe2203sp1.x86_64.rpm",
"kernel-devel-5.10.0-136.79.0.159.oe2203sp1.x86_64.rpm",
"kernel-tools-5.10.0-136.79.0.159.oe2203sp1.x86_64.rpm",
"kernel-tools-devel-5.10.0-136.79.0.159.oe2203sp1.x86_64.rpm",
"kernel-debuginfo-5.10.0-136.79.0.159.oe2203sp1.x86_64.rpm",
"perf-debuginfo-5.10.0-136.79.0.159.oe2203sp1.x86_64.rpm"
]
},
"package": {
"ecosystem": "openEuler:22.03-LTS-SP1",
"name": "kernel",
"purl": "pkg:rpm/openEuler/kernel\u0026distro=openEuler-22.03-LTS-SP1"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "5.10.0-136.79.0.159.oe2203sp1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"severity": "Medium"
},
"details": "The Linux Kernel, the operating system core itself.\r\n\r\nSecurity Fix(es):\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nnet/mlx5e: Fix use-after-free of encap entry in neigh update handler\r\n\r\nFunction mlx5e_rep_neigh_update() wasn\u0026apos;t updated to accommodate rtnl lock\nremoval from TC filter update path and properly handle concurrent encap\nentry insertion/deletion which can lead to following use-after-free:\r\n\r\n [23827.464923] ==================================================================\n [23827.469446] BUG: KASAN: use-after-free in mlx5e_encap_take+0x72/0x140 [mlx5_core]\n [23827.470971] Read of size 4 at addr ffff8881d132228c by task kworker/u20:6/21635\n [23827.472251]\n [23827.472615] CPU: 9 PID: 21635 Comm: kworker/u20:6 Not tainted 5.13.0-rc3+ #5\n [23827.473788] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n [23827.475639] Workqueue: mlx5e mlx5e_rep_neigh_update [mlx5_core]\n [23827.476731] Call Trace:\n [23827.477260] dump_stack+0xbb/0x107\n [23827.477906] print_address_description.constprop.0+0x18/0x140\n [23827.478896] ? mlx5e_encap_take+0x72/0x140 [mlx5_core]\n [23827.479879] ? mlx5e_encap_take+0x72/0x140 [mlx5_core]\n [23827.480905] kasan_report.cold+0x7c/0xd8\n [23827.481701] ? mlx5e_encap_take+0x72/0x140 [mlx5_core]\n [23827.482744] kasan_check_range+0x145/0x1a0\n [23827.493112] mlx5e_encap_take+0x72/0x140 [mlx5_core]\n [23827.494054] ? mlx5e_tc_tun_encap_info_equal_generic+0x140/0x140 [mlx5_core]\n [23827.495296] mlx5e_rep_neigh_update+0x41e/0x5e0 [mlx5_core]\n [23827.496338] ? mlx5e_rep_neigh_entry_release+0xb80/0xb80 [mlx5_core]\n [23827.497486] ? read_word_at_a_time+0xe/0x20\n [23827.498250] ? strscpy+0xa0/0x2a0\n [23827.498889] process_one_work+0x8ac/0x14e0\n [23827.499638] ? lockdep_hardirqs_on_prepare+0x400/0x400\n [23827.500537] ? pwq_dec_nr_in_flight+0x2c0/0x2c0\n [23827.501359] ? rwlock_bug.part.0+0x90/0x90\n [23827.502116] worker_thread+0x53b/0x1220\n [23827.502831] ? process_one_work+0x14e0/0x14e0\n [23827.503627] kthread+0x328/0x3f0\n [23827.504254] ? _raw_spin_unlock_irq+0x24/0x40\n [23827.505065] ? __kthread_bind_mask+0x90/0x90\n [23827.505912] ret_from_fork+0x1f/0x30\n [23827.506621]\n [23827.506987] Allocated by task 28248:\n [23827.507694] kasan_save_stack+0x1b/0x40\n [23827.508476] __kasan_kmalloc+0x7c/0x90\n [23827.509197] mlx5e_attach_encap+0xde1/0x1d40 [mlx5_core]\n [23827.510194] mlx5e_tc_add_fdb_flow+0x397/0xc40 [mlx5_core]\n [23827.511218] __mlx5e_add_fdb_flow+0x519/0xb30 [mlx5_core]\n [23827.512234] mlx5e_configure_flower+0x191c/0x4870 [mlx5_core]\n [23827.513298] tc_setup_cb_add+0x1d5/0x420\n [23827.514023] fl_hw_replace_filter+0x382/0x6a0 [cls_flower]\n [23827.514975] fl_change+0x2ceb/0x4a51 [cls_flower]\n [23827.515821] tc_new_tfilter+0x89a/0x2070\n [23827.516548] rtnetlink_rcv_msg+0x644/0x8c0\n [23827.517300] netlink_rcv_skb+0x11d/0x340\n [23827.518021] netlink_unicast+0x42b/0x700\n [23827.518742] netlink_sendmsg+0x743/0xc20\n [23827.519467] sock_sendmsg+0xb2/0xe0\n [23827.520131] ____sys_sendmsg+0x590/0x770\n [23827.520851] ___sys_sendmsg+0xd8/0x160\n [23827.521552] __sys_sendmsg+0xb7/0x140\n [23827.522238] do_syscall_64+0x3a/0x70\n [23827.522907] entry_SYSCALL_64_after_hwframe+0x44/0xae\n [23827.523797]\n [23827.524163] Freed by task 25948:\n [23827.524780] kasan_save_stack+0x1b/0x40\n [23827.525488] kasan_set_track+0x1c/0x30\n [23827.526187] kasan_set_free_info+0x20/0x30\n [23827.526968] __kasan_slab_free+0xed/0x130\n [23827.527709] slab_free_freelist_hook+0xcf/0x1d0\n [23827.528528] kmem_cache_free_bulk+0x33a/0x6e0\n [23827.529317] kfree_rcu_work+0x55f/0xb70\n [23827.530024] process_one_work+0x8ac/0x14e0\n [23827.530770] worker_thread+0x53b/0x1220\n [23827.531480] kthread+0x328/0x3f0\n [23827.532114] ret_from_fork+0x1f/0x30\n [23827.532785]\n [23827.533147] Last potentially related work creation:\n [23827.534007] kasan_save_stack+0x1b/0x40\n [23827.534710] kasan_record_aux_stack+0xab/0xc0\n [23827.535492] kvfree_call_rcu+0x31/0x7b0\n [23827.536206] mlx5e_tc_del\n---truncated---(CVE-2021-47247)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nRDMA: Verify port when creating flow rule\r\n\r\nValidate port value provided by the user and with that remove no longer\nneeded validation by the driver. The missing check in the mlx5_ib driver\ncould cause to the below oops.\r\n\r\nCall trace:\n _create_flow_rule+0x2d4/0xf28 [mlx5_ib]\n mlx5_ib_create_flow+0x2d0/0x5b0 [mlx5_ib]\n ib_uverbs_ex_create_flow+0x4cc/0x624 [ib_uverbs]\n ib_uverbs_handler_UVERBS_METHOD_INVOKE_WRITE+0xd4/0x150 [ib_uverbs]\n ib_uverbs_cmd_verbs.isra.7+0xb28/0xc50 [ib_uverbs]\n ib_uverbs_ioctl+0x158/0x1d0 [ib_uverbs]\n do_vfs_ioctl+0xd0/0xaf0\n ksys_ioctl+0x84/0xb4\n __arm64_sys_ioctl+0x28/0xc4\n el0_svc_common.constprop.3+0xa4/0x254\n el0_svc_handler+0x84/0xa0\n el0_svc+0x10/0x26c\n Code: b9401260 f9615681 51000400 8b001c20 (f9403c1a)(CVE-2021-47265)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nmISDN: fix possible use-after-free in HFC_cleanup()\r\n\r\nThis module\u0026apos;s remove path calls del_timer(). However, that function\ndoes not wait until the timer handler finishes. This means that the\ntimer handler may still be running after the driver\u0026apos;s remove function\nhas finished, which would result in a use-after-free.\r\n\r\nFix by calling del_timer_sync(), which makes sure the timer handler\nhas finished, and unable to re-schedule itself.(CVE-2021-47356)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nnet: stmmac: Disable Tx queues when reconfiguring the interface\r\n\r\nThe Tx queues were not disabled in situations where the driver needed to\nstop the interface to apply a new configuration. This could result in a\nkernel panic when doing any of the 3 following actions:\n* reconfiguring the number of queues (ethtool -L)\n* reconfiguring the size of the ring buffers (ethtool -G)\n* installing/removing an XDP program (ip l set dev ethX xdp)\r\n\r\nPrevent the panic by making sure netif_tx_disable is called when stopping\nan interface.\r\n\r\nWithout this patch, the following kernel panic can be observed when doing\nany of the actions above:\r\n\r\nUnable to handle kernel paging request at virtual address ffff80001238d040\n[....]\n Call trace:\n dwmac4_set_addr+0x8/0x10\n dev_hard_start_xmit+0xe4/0x1ac\n sch_direct_xmit+0xe8/0x39c\n __dev_queue_xmit+0x3ec/0xaf0\n dev_queue_xmit+0x14/0x20\n[...]\n[ end trace 0000000000000002 ]---(CVE-2021-47558)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nice: Fix crash by keep old cfg when update TCs more than queues\r\n\r\nThere are problems if allocated queues less than Traffic Classes.\r\n\r\nCommit a632b2a4c920 (\u0026quot;ice: ethtool: Prohibit improper channel config\nfor DCB\u0026quot;) already disallow setting less queues than TCs.\r\n\r\nAnother case is if we first set less queues, and later update more TCs\nconfig due to LLDP, ice_vsi_cfg_tc() will failed but left dirty\nnum_txq/rxq and tc_cfg in vsi, that will cause invalid pointer access.\r\n\r\n[ 95.968089] ice 0000:3b:00.1: More TCs defined than queues/rings allocated.\n[ 95.968092] ice 0000:3b:00.1: Trying to use more Rx queues (8), than were allocated (1)!\n[ 95.968093] ice 0000:3b:00.1: Failed to config TC for VSI index: 0\n[ 95.969621] general protection fault: 0000 [#1] SMP NOPTI\n[ 95.969705] CPU: 1 PID: 58405 Comm: lldpad Kdump: loaded Tainted: G U W O --------- -t - 4.18.0 #1\n[ 95.969867] Hardware name: O.E.M/BC11SPSCB10, BIOS 8.23 12/30/2021\n[ 95.969992] RIP: 0010:devm_kmalloc+0xa/0x60\n[ 95.970052] Code: 5c ff ff ff 31 c0 5b 5d 41 5c c3 b8 f4 ff ff ff eb f4 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 89 d1 \u0026lt;8b\u0026gt; 97 60 02 00 00 48 8d 7e 18 48 39 f7 72 3f 55 89 ce 53 48 8b 4c\n[ 95.970344] RSP: 0018:ffffc9003f553888 EFLAGS: 00010206\n[ 95.970425] RAX: dead000000000200 RBX: ffffea003c425b00 RCX: 00000000006080c0\n[ 95.970536] RDX: 00000000006080c0 RSI: 0000000000000200 RDI: dead000000000200\n[ 95.970648] RBP: dead000000000200 R08: 00000000000463c0 R09: ffff888ffa900000\n[ 95.970760] R10: 0000000000000000 R11: 0000000000000002 R12: ffff888ff6b40100\n[ 95.970870] R13: ffff888ff6a55018 R14: 0000000000000000 R15: ffff888ff6a55460\n[ 95.970981] FS: 00007f51b7d24700(0000) GS:ffff88903ee80000(0000) knlGS:0000000000000000\n[ 95.971108] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 95.971197] CR2: 00007fac5410d710 CR3: 0000000f2c1de002 CR4: 00000000007606e0\n[ 95.971309] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 95.971419] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[ 95.971530] PKRU: 55555554\n[ 95.971573] Call Trace:\n[ 95.971622] ice_setup_rx_ring+0x39/0x110 [ice]\n[ 95.971695] ice_vsi_setup_rx_rings+0x54/0x90 [ice]\n[ 95.971774] ice_vsi_open+0x25/0x120 [ice]\n[ 95.971843] ice_open_internal+0xb8/0x1f0 [ice]\n[ 95.971919] ice_ena_vsi+0x4f/0xd0 [ice]\n[ 95.971987] ice_dcb_ena_dis_vsi.constprop.5+0x29/0x90 [ice]\n[ 95.972082] ice_pf_dcb_cfg+0x29a/0x380 [ice]\n[ 95.972154] ice_dcbnl_setets+0x174/0x1b0 [ice]\n[ 95.972220] dcbnl_ieee_set+0x89/0x230\n[ 95.972279] ? dcbnl_ieee_del+0x150/0x150\n[ 95.972341] dcb_doit+0x124/0x1b0\n[ 95.972392] rtnetlink_rcv_msg+0x243/0x2f0\n[ 95.972457] ? dcb_doit+0x14d/0x1b0\n[ 95.972510] ? __kmalloc_node_track_caller+0x1d3/0x280\n[ 95.972591] ? rtnl_calcit.isra.31+0x100/0x100\n[ 95.972661] netlink_rcv_skb+0xcf/0xf0\n[ 95.972720] netlink_unicast+0x16d/0x220\n[ 95.972781] netlink_sendmsg+0x2ba/0x3a0\n[ 95.975891] sock_sendmsg+0x4c/0x50\n[ 95.979032] ___sys_sendmsg+0x2e4/0x300\n[ 95.982147] ? kmem_cache_alloc+0x13e/0x190\n[ 95.985242] ? __wake_up_common_lock+0x79/0x90\n[ 95.988338] ? __check_object_size+0xac/0x1b0\n[ 95.991440] ? _copy_to_user+0x22/0x30\n[ 95.994539] ? move_addr_to_user+0xbb/0xd0\n[ 95.997619] ? __sys_sendmsg+0x53/0x80\n[ 96.000664] __sys_sendmsg+0x53/0x80\n[ 96.003747] do_syscall_64+0x5b/0x1d0\n[ 96.006862] entry_SYSCALL_64_after_hwframe+0x65/0xca\r\n\r\nOnly update num_txq/rxq when passed check, and restore tc_cfg if setup\nqueue map failed.(CVE-2022-48652)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\naio: fix mremap after fork null-deref\r\n\r\nCommit e4a0d3e720e7 (\u0026quot;aio: Make it possible to remap aio ring\u0026quot;) introduced\na null-deref if mremap is called on an old aio mapping after fork as\nmm-\u0026gt;ioctx_table will be set to NULL.\r\n\r\n[jmoyer@redhat.com: fix 80 column issue](CVE-2023-52646)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nriscv: Check if the code to patch lies in the exit section\r\n\r\nOtherwise we fall through to vmalloc_to_page() which panics since the\naddress does not lie in the vmalloc region.(CVE-2023-52677)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nALSA: scarlett2: Add missing error checks to *_ctl_get()\r\n\r\nThe *_ctl_get() functions which call scarlett2_update_*() were not\nchecking the return value. Fix to check the return value and pass to\nthe caller.(CVE-2023-52680)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\npowerpc/powernv: Add a null pointer check in opal_event_init()\r\n\r\nkasprintf() returns a pointer to dynamically allocated memory\nwhich can be NULL upon failure.(CVE-2023-52686)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nnet: openvswitch: fix possible memory leak in ovs_meter_cmd_set()\r\n\r\nold_meter needs to be free after it is detached regardless of whether\nthe new meter is successfully attached.(CVE-2023-52702)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nnilfs2: fix underflow in second superblock position calculations\r\n\r\nMacro NILFS_SB2_OFFSET_BYTES, which computes the position of the second\nsuperblock, underflows when the argument device size is less than 4096\nbytes. Therefore, when using this macro, it is necessary to check in\nadvance that the device size is not less than a lower limit, or at least\nthat underflow does not occur.\r\n\r\nThe current nilfs2 implementation lacks this check, causing out-of-bound\nblock access when mounting devices smaller than 4096 bytes:\r\n\r\n I/O error, dev loop0, sector 36028797018963960 op 0x0:(READ) flags 0x0\n phys_seg 1 prio class 2\n NILFS (loop0): unable to read secondary superblock (blocksize = 1024)\r\n\r\nIn addition, when trying to resize the filesystem to a size below 4096\nbytes, this underflow occurs in nilfs_resize_fs(), passing a huge number\nof segments to nilfs_sufile_resize(), corrupting parameters such as the\nnumber of segments in superblocks. This causes excessive loop iterations\nin nilfs_sufile_resize() during a subsequent resize ioctl, causing\nsemaphore ns_segctor_sem to block for a long time and hang the writer\nthread:\r\n\r\n INFO: task segctord:5067 blocked for more than 143 seconds.\n Not tainted 6.2.0-rc8-syzkaller-00015-gf6feea56f66d #0\n \u0026quot;echo 0 \u0026gt; /proc/sys/kernel/hung_task_timeout_secs\u0026quot; disables this message.\n task:segctord state:D stack:23456 pid:5067 ppid:2\n flags:0x00004000\n Call Trace:\n \u0026lt;TASK\u0026gt;\n context_switch kernel/sched/core.c:5293 [inline]\n __schedule+0x1409/0x43f0 kernel/sched/core.c:6606\n schedule+0xc3/0x190 kernel/sched/core.c:6682\n rwsem_down_write_slowpath+0xfcf/0x14a0 kernel/locking/rwsem.c:1190\n nilfs_transaction_lock+0x25c/0x4f0 fs/nilfs2/segment.c:357\n nilfs_segctor_thread_construct fs/nilfs2/segment.c:2486 [inline]\n nilfs_segctor_thread+0x52f/0x1140 fs/nilfs2/segment.c:2570\n kthread+0x270/0x300 kernel/kthread.c:376\n ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308\n \u0026lt;/TASK\u0026gt;\n ...\n Call Trace:\n \u0026lt;TASK\u0026gt;\n folio_mark_accessed+0x51c/0xf00 mm/swap.c:515\n __nilfs_get_page_block fs/nilfs2/page.c:42 [inline]\n nilfs_grab_buffer+0x3d3/0x540 fs/nilfs2/page.c:61\n nilfs_mdt_submit_block+0xd7/0x8f0 fs/nilfs2/mdt.c:121\n nilfs_mdt_read_block+0xeb/0x430 fs/nilfs2/mdt.c:176\n nilfs_mdt_get_block+0x12d/0xbb0 fs/nilfs2/mdt.c:251\n nilfs_sufile_get_segment_usage_block fs/nilfs2/sufile.c:92 [inline]\n nilfs_sufile_truncate_range fs/nilfs2/sufile.c:679 [inline]\n nilfs_sufile_resize+0x7a3/0x12b0 fs/nilfs2/sufile.c:777\n nilfs_resize_fs+0x20c/0xed0 fs/nilfs2/super.c:422\n nilfs_ioctl_resize fs/nilfs2/ioctl.c:1033 [inline]\n nilfs_ioctl+0x137c/0x2440 fs/nilfs2/ioctl.c:1301\n ...\r\n\r\nThis fixes these issues by inserting appropriate minimum device size\nchecks or anti-underflow checks, depending on where the macro is used.(CVE-2023-52705)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nIB/IPoIB: Fix legacy IPoIB due to wrong number of queues\r\n\r\nThe cited commit creates child PKEY interfaces over netlink will\nmultiple tx and rx queues, but some devices doesn\u0026apos;t support more than 1\ntx and 1 rx queues. This causes to a crash when traffic is sent over the\nPKEY interface due to the parent having a single queue but the child\nhaving multiple queues.\r\n\r\nThis patch fixes the number of queues to 1 for legacy IPoIB at the\nearliest possible point in time.\r\n\r\nBUG: kernel NULL pointer dereference, address: 000000000000036b\nPGD 0 P4D 0\nOops: 0000 [#1] SMP\nCPU: 4 PID: 209665 Comm: python3 Not tainted 6.1.0_for_upstream_min_debug_2022_12_12_17_02 #1\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\nRIP: 0010:kmem_cache_alloc+0xcb/0x450\nCode: ce 7e 49 8b 50 08 49 83 78 10 00 4d 8b 28 0f 84 cb 02 00 00 4d 85 ed 0f 84 c2 02 00 00 41 8b 44 24 28 48 8d 4a\n01 49 8b 3c 24 \u0026lt;49\u0026gt; 8b 5c 05 00 4c 89 e8 65 48 0f c7 0f 0f 94 c0 84 c0 74 b8 41 8b\nRSP: 0018:ffff88822acbbab8 EFLAGS: 00010202\nRAX: 0000000000000070 RBX: ffff8881c28e3e00 RCX: 00000000064f8dae\nRDX: 00000000064f8dad RSI: 0000000000000a20 RDI: 0000000000030d00\nRBP: 0000000000000a20 R08: ffff8882f5d30d00 R09: ffff888104032f40\nR10: ffff88810fade828 R11: 736f6d6570736575 R12: ffff88810081c000\nR13: 00000000000002fb R14: ffffffff817fc865 R15: 0000000000000000\nFS: 00007f9324ff9700(0000) GS:ffff8882f5d00000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 000000000000036b CR3: 00000001125af004 CR4: 0000000000370ea0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n \u0026lt;TASK\u0026gt;\n skb_clone+0x55/0xd0\n ip6_finish_output2+0x3fe/0x690\n ip6_finish_output+0xfa/0x310\n ip6_send_skb+0x1e/0x60\n udp_v6_send_skb+0x1e5/0x420\n udpv6_sendmsg+0xb3c/0xe60\n ? ip_mc_finish_output+0x180/0x180\n ? __switch_to_asm+0x3a/0x60\n ? __switch_to_asm+0x34/0x60\n sock_sendmsg+0x33/0x40\n __sys_sendto+0x103/0x160\n ? _copy_to_user+0x21/0x30\n ? kvm_clock_get_cycles+0xd/0x10\n ? ktime_get_ts64+0x49/0xe0\n __x64_sys_sendto+0x25/0x30\n do_syscall_64+0x3d/0x90\n entry_SYSCALL_64_after_hwframe+0x46/0xb0\nRIP: 0033:0x7f9374f1ed14\nCode: 42 41 f8 ff 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b\n7c 24 08 0f 05 \u0026lt;48\u0026gt; 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 68 41 f8 ff 48 8b\nRSP: 002b:00007f9324ff7bd0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c\nRAX: ffffffffffffffda RBX: 00007f9324ff7cc8 RCX: 00007f9374f1ed14\nRDX: 00000000000002fb RSI: 00007f93000052f0 RDI: 0000000000000030\nRBP: 0000000000000000 R08: 00007f9324ff7d40 R09: 000000000000001c\nR10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000\nR13: 000000012a05f200 R14: 0000000000000001 R15: 00007f9374d57bdc\n \u0026lt;/TASK\u0026gt;(CVE-2023-52745)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nxfrm/compat: prevent potential spectre v1 gadget in xfrm_xlate32_attr()\r\n\r\n int type = nla_type(nla);\r\n\r\n if (type \u0026gt; XFRMA_MAX) {\n return -EOPNOTSUPP;\n }\r\n\r\n@type is then used as an array index and can be used\nas a Spectre v1 gadget.\r\n\r\n if (nla_len(nla) \u0026lt; compat_policy[type].len) {\r\n\r\narray_index_nospec() can be used to prevent leaking\ncontent of kernel memory to malicious users.(CVE-2023-52746)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ndrm/amd/display: Avoid NULL dereference of timing generator\r\n\r\n[Why \u0026amp; How]\nCheck whether assigned timing generator is NULL or not before\naccessing its funcs to prevent NULL dereference.(CVE-2023-52753)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nnet/smc: avoid data corruption caused by decline\r\n\r\nWe found a data corruption issue during testing of SMC-R on Redis\napplications.\r\n\r\nThe benchmark has a low probability of reporting a strange error as\nshown below.\r\n\r\n\u0026quot;Error: Protocol error, got \u0026quot;\\xe2\u0026quot; as reply type byte\u0026quot;\r\n\r\nFinally, we found that the retrieved error data was as follows:\r\n\r\n0xE2 0xD4 0xC3 0xD9 0x04 0x00 0x2C 0x20 0xA6 0x56 0x00 0x16 0x3E 0x0C\n0xCB 0x04 0x02 0x01 0x00 0x00 0x20 0x00 0x00 0x00 0x00 0x00 0x00 0x00\n0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0xE2\r\n\r\nIt is quite obvious that this is a SMC DECLINE message, which means that\nthe applications received SMC protocol message.\nWe found that this was caused by the following situations:\r\n\r\nclient server\n \u00a6 clc proposal\n -------------\u0026gt;\n \u00a6 clc accept\n \u0026lt;-------------\n \u00a6 clc confirm\n -------------\u0026gt;\nwait llc confirm\n\t\t\tsend llc confirm\n \u00a6failed llc confirm\n \u00a6 x------\n(after 2s)timeout\n wait llc confirm rsp\r\n\r\nwait decline\r\n\r\n(after 1s) timeout\n (after 2s) timeout\n \u00a6 decline\n --------------\u0026gt;\n \u00a6 decline\n \u0026lt;--------------\r\n\r\nAs a result, a decline message was sent in the implementation, and this\nmessage was read from TCP by the already-fallback connection.\r\n\r\nThis patch double the client timeout as 2x of the server value,\nWith this simple change, the Decline messages should never cross or\ncollide (during Confirm link timeout).\r\n\r\nThis issue requires an immediate solution, since the protocol updates\ninvolve a more long-term solution.(CVE-2023-52775)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nipvlan: add ipvlan_route_v6_outbound() helper\r\n\r\nInspired by syzbot reports using a stack of multiple ipvlan devices.\r\n\r\nReduce stack size needed in ipvlan_process_v6_outbound() by moving\nthe flowi6 struct used for the route lookup in an non inlined\nhelper. ipvlan_route_v6_outbound() needs 120 bytes on the stack,\nimmediately reclaimed.\r\n\r\nAlso make sure ipvlan_process_v4_outbound() is not inlined.\r\n\r\nWe might also have to lower MAX_NEST_DEV, because only syzbot uses\nsetups with more than four stacked devices.\r\n\r\nBUG: TASK stack guard page was hit at ffffc9000e803ff8 (stack is ffffc9000e804000..ffffc9000e808000)\nstack guard page: 0000 [#1] SMP KASAN\nCPU: 0 PID: 13442 Comm: syz-executor.4 Not tainted 6.1.52-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023\nRIP: 0010:kasan_check_range+0x4/0x2a0 mm/kasan/generic.c:188\nCode: 48 01 c6 48 89 c7 e8 db 4e c1 03 31 c0 5d c3 cc 0f 0b eb 02 0f 0b b8 ea ff ff ff 5d c3 cc 00 00 cc cc 00 00 cc cc 55 48 89 e5 \u0026lt;41\u0026gt; 57 41 56 41 55 41 54 53 b0 01 48 85 f6 0f 84 a4 01 00 00 48 89\nRSP: 0018:ffffc9000e804000 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff817e5bf2\nRDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff887c6568\nRBP: ffffc9000e804000 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92001d0080c\nR13: dffffc0000000000 R14: ffffffff87e6b100 R15: 0000000000000000\nFS: 00007fd0c55826c0(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: ffffc9000e803ff8 CR3: 0000000170ef7000 CR4: 00000000003506f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n\u0026lt;#DF\u0026gt;\n\u0026lt;/#DF\u0026gt;\n\u0026lt;TASK\u0026gt;\n[\u0026lt;ffffffff81f281d1\u0026gt;] __kasan_check_read+0x11/0x20 mm/kasan/shadow.c:31\n[\u0026lt;ffffffff817e5bf2\u0026gt;] instrument_atomic_read include/linux/instrumented.h:72 [inline]\n[\u0026lt;ffffffff817e5bf2\u0026gt;] _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]\n[\u0026lt;ffffffff817e5bf2\u0026gt;] cpumask_test_cpu include/linux/cpumask.h:506 [inline]\n[\u0026lt;ffffffff817e5bf2\u0026gt;] cpu_online include/linux/cpumask.h:1092 [inline]\n[\u0026lt;ffffffff817e5bf2\u0026gt;] trace_lock_acquire include/trace/events/lock.h:24 [inline]\n[\u0026lt;ffffffff817e5bf2\u0026gt;] lock_acquire+0xe2/0x590 kernel/locking/lockdep.c:5632\n[\u0026lt;ffffffff8563221e\u0026gt;] rcu_lock_acquire+0x2e/0x40 include/linux/rcupdate.h:306\n[\u0026lt;ffffffff8561464d\u0026gt;] rcu_read_lock include/linux/rcupdate.h:747 [inline]\n[\u0026lt;ffffffff8561464d\u0026gt;] ip6_pol_route+0x15d/0x1440 net/ipv6/route.c:2221\n[\u0026lt;ffffffff85618120\u0026gt;] ip6_pol_route_output+0x50/0x80 net/ipv6/route.c:2606\n[\u0026lt;ffffffff856f65b5\u0026gt;] pol_lookup_func include/net/ip6_fib.h:584 [inline]\n[\u0026lt;ffffffff856f65b5\u0026gt;] fib6_rule_lookup+0x265/0x620 net/ipv6/fib6_rules.c:116\n[\u0026lt;ffffffff85618009\u0026gt;] ip6_route_output_flags_noref+0x2d9/0x3a0 net/ipv6/route.c:2638\n[\u0026lt;ffffffff8561821a\u0026gt;] ip6_route_output_flags+0xca/0x340 net/ipv6/route.c:2651\n[\u0026lt;ffffffff838bd5a3\u0026gt;] ip6_route_output include/net/ip6_route.h:100 [inline]\n[\u0026lt;ffffffff838bd5a3\u0026gt;] ipvlan_process_v6_outbound drivers/net/ipvlan/ipvlan_core.c:473 [inline]\n[\u0026lt;ffffffff838bd5a3\u0026gt;] ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:529 [inline]\n[\u0026lt;ffffffff838bd5a3\u0026gt;] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:602 [inline]\n[\u0026lt;ffffffff838bd5a3\u0026gt;] ipvlan_queue_xmit+0xc33/0x1be0 drivers/net/ipvlan/ipvlan_core.c:677\n[\u0026lt;ffffffff838c2909\u0026gt;] ipvlan_start_xmit+0x49/0x100 drivers/net/ipvlan/ipvlan_main.c:229\n[\u0026lt;ffffffff84d03900\u0026gt;] netdev_start_xmit include/linux/netdevice.h:4966 [inline]\n[\u0026lt;ffffffff84d03900\u0026gt;] xmit_one net/core/dev.c:3644 [inline]\n[\u0026lt;ffffffff84d03900\u0026gt;] dev_hard_start_xmit+0x320/0x980 net/core/dev.c:3660\n[\u0026lt;ffffffff84d080e2\u0026gt;] __dev_queue_xmit+0x16b2/0x3370 net/core/dev.c:4324\n[\u0026lt;ffffffff855ce4cd\u0026gt;] dev_queue_xmit include/linux/netdevice.h:3067 [inline]\n[\u0026lt;ffffffff855ce4cd\u0026gt;] neigh_hh_output include/net/neighbour.h:529 [inline]\n[\u0026lt;f\n---truncated---(CVE-2023-52796)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nwifi: ath11k: fix dfs radar event locking\r\n\r\nThe ath11k active pdevs are protected by RCU but the DFS radar event\nhandling code calling ath11k_mac_get_ar_by_pdev_id() was not marked as a\nread-side critical section.\r\n\r\nMark the code in question as an RCU read-side critical section to avoid\nany potential use-after-free issues.\r\n\r\nCompile tested only.(CVE-2023-52798)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\njfs: fix array-index-out-of-bounds in dbFindLeaf\r\n\r\nCurrently while searching for dmtree_t for sufficient free blocks there\nis an array out of bounds while getting element in tp-\u0026gt;dm_stree. To add\nthe required check for out of bound we first need to determine the type\nof dmtree. Thus added an extra parameter to dbFindLeaf so that the type\nof tree can be determined and the required check can be applied.(CVE-2023-52799)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nwifi: ath11k: fix htt pktlog locking\r\n\r\nThe ath11k active pdevs are protected by RCU but the htt pktlog handling\ncode calling ath11k_mac_get_ar_by_pdev_id() was not marked as a\nread-side critical section.\r\n\r\nMark the code in question as an RCU read-side critical section to avoid\nany potential use-after-free issues.\r\n\r\nCompile tested only.(CVE-2023-52800)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nSUNRPC: Fix RPC client cleaned up the freed pipefs dentries\r\n\r\nRPC client pipefs dentries cleanup is in separated rpc_remove_pipedir()\nworkqueue,which takes care about pipefs superblock locking.\nIn some special scenarios, when kernel frees the pipefs sb of the\ncurrent client and immediately alloctes a new pipefs sb,\nrpc_remove_pipedir function would misjudge the existence of pipefs\nsb which is not the one it used to hold. As a result,\nthe rpc_remove_pipedir would clean the released freed pipefs dentries.\r\n\r\nTo fix this issue, rpc_remove_pipedir should check whether the\ncurrent pipefs sb is consistent with the original pipefs sb.\r\n\r\nThis error can be catched by KASAN:\n=========================================================\n[ 250.497700] BUG: KASAN: slab-use-after-free in dget_parent+0x195/0x200\n[ 250.498315] Read of size 4 at addr ffff88800a2ab804 by task kworker/0:18/106503\n[ 250.500549] Workqueue: events rpc_free_client_work\n[ 250.501001] Call Trace:\n[ 250.502880] kasan_report+0xb6/0xf0\n[ 250.503209] ? dget_parent+0x195/0x200\n[ 250.503561] dget_parent+0x195/0x200\n[ 250.503897] ? __pfx_rpc_clntdir_depopulate+0x10/0x10\n[ 250.504384] rpc_rmdir_depopulate+0x1b/0x90\n[ 250.504781] rpc_remove_client_dir+0xf5/0x150\n[ 250.505195] rpc_free_client_work+0xe4/0x230\n[ 250.505598] process_one_work+0x8ee/0x13b0\n...\n[ 22.039056] Allocated by task 244:\n[ 22.039390] kasan_save_stack+0x22/0x50\n[ 22.039758] kasan_set_track+0x25/0x30\n[ 22.040109] __kasan_slab_alloc+0x59/0x70\n[ 22.040487] kmem_cache_alloc_lru+0xf0/0x240\n[ 22.040889] __d_alloc+0x31/0x8e0\n[ 22.041207] d_alloc+0x44/0x1f0\n[ 22.041514] __rpc_lookup_create_exclusive+0x11c/0x140\n[ 22.041987] rpc_mkdir_populate.constprop.0+0x5f/0x110\n[ 22.042459] rpc_create_client_dir+0x34/0x150\n[ 22.042874] rpc_setup_pipedir_sb+0x102/0x1c0\n[ 22.043284] rpc_client_register+0x136/0x4e0\n[ 22.043689] rpc_new_client+0x911/0x1020\n[ 22.044057] rpc_create_xprt+0xcb/0x370\n[ 22.044417] rpc_create+0x36b/0x6c0\n...\n[ 22.049524] Freed by task 0:\n[ 22.049803] kasan_save_stack+0x22/0x50\n[ 22.050165] kasan_set_track+0x25/0x30\n[ 22.050520] kasan_save_free_info+0x2b/0x50\n[ 22.050921] __kasan_slab_free+0x10e/0x1a0\n[ 22.051306] kmem_cache_free+0xa5/0x390\n[ 22.051667] rcu_core+0x62c/0x1930\n[ 22.051995] __do_softirq+0x165/0x52a\n[ 22.052347]\n[ 22.052503] Last potentially related work creation:\n[ 22.052952] kasan_save_stack+0x22/0x50\n[ 22.053313] __kasan_record_aux_stack+0x8e/0xa0\n[ 22.053739] __call_rcu_common.constprop.0+0x6b/0x8b0\n[ 22.054209] dentry_free+0xb2/0x140\n[ 22.054540] __dentry_kill+0x3be/0x540\n[ 22.054900] shrink_dentry_list+0x199/0x510\n[ 22.055293] shrink_dcache_parent+0x190/0x240\n[ 22.055703] do_one_tree+0x11/0x40\n[ 22.056028] shrink_dcache_for_umount+0x61/0x140\n[ 22.056461] generic_shutdown_super+0x70/0x590\n[ 22.056879] kill_anon_super+0x3a/0x60\n[ 22.057234] rpc_kill_sb+0x121/0x200(CVE-2023-52803)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nnet: hns3: fix out-of-bounds access may occur when coalesce info is read via debugfs\r\n\r\nThe hns3 driver define an array of string to show the coalesce\ninfo, but if the kernel adds a new mode or a new state,\nout-of-bounds access may occur when coalesce info is read via\ndebugfs, this patch fix the problem.(CVE-2023-52807)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nclk: mediatek: clk-mt6797: Add check for mtk_alloc_clk_data\r\n\r\nAdd the check for the return value of mtk_alloc_clk_data() in order to\navoid NULL pointer dereference.(CVE-2023-52865)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nclk: mediatek: clk-mt2701: Add check for mtk_alloc_clk_data\r\n\r\nAdd the check for the return value of mtk_alloc_clk_data() in order to\navoid NULL pointer dereference.(CVE-2023-52875)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nxen-netfront: Add missing skb_mark_for_recycle\r\n\r\nNotice that skb_mark_for_recycle() is introduced later than fixes tag in\ncommit 6a5bcd84e886 (\u0026quot;page_pool: Allow drivers to hint on SKB recycling\u0026quot;).\r\n\r\nIt is believed that fixes tag were missing a call to page_pool_release_page()\nbetween v5.9 to v5.14, after which is should have used skb_mark_for_recycle().\nSince v6.6 the call page_pool_release_page() were removed (in\ncommit 535b9c61bdef (\u0026quot;net: page_pool: hide page_pool_release_page()\u0026quot;)\nand remaining callers converted (in commit 6bfef2ec0172 (\u0026quot;Merge branch\n\u0026apos;net-page_pool-remove-page_pool_release_page\u0026apos;\u0026quot;)).\r\n\r\nThis leak became visible in v6.8 via commit dba1b8a7ab68 (\u0026quot;mm/page_pool: catch\npage_pool memory leaks\u0026quot;).(CVE-2024-27393)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nBluetooth: l2cap: fix null-ptr-deref in l2cap_chan_timeout\r\n\r\nThere is a race condition between l2cap_chan_timeout() and\nl2cap_chan_del(). When we use l2cap_chan_del() to delete the\nchannel, the chan-\u0026gt;conn will be set to null. But the conn could\nbe dereferenced again in the mutex_lock() of l2cap_chan_timeout().\nAs a result the null pointer dereference bug will happen. The\nKASAN report triggered by POC is shown below:\r\n\r\n[ 472.074580] ==================================================================\n[ 472.075284] BUG: KASAN: null-ptr-deref in mutex_lock+0x68/0xc0\n[ 472.075308] Write of size 8 at addr 0000000000000158 by task kworker/0:0/7\n[ 472.075308]\n[ 472.075308] CPU: 0 PID: 7 Comm: kworker/0:0 Not tainted 6.9.0-rc5-00356-g78c0094a146b #36\n[ 472.075308] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu4\n[ 472.075308] Workqueue: events l2cap_chan_timeout\n[ 472.075308] Call Trace:\n[ 472.075308] \u0026lt;TASK\u0026gt;\n[ 472.075308] dump_stack_lvl+0x137/0x1a0\n[ 472.075308] print_report+0x101/0x250\n[ 472.075308] ? __virt_addr_valid+0x77/0x160\n[ 472.075308] ? mutex_lock+0x68/0xc0\n[ 472.075308] kasan_report+0x139/0x170\n[ 472.075308] ? mutex_lock+0x68/0xc0\n[ 472.075308] kasan_check_range+0x2c3/0x2e0\n[ 472.075308] mutex_lock+0x68/0xc0\n[ 472.075308] l2cap_chan_timeout+0x181/0x300\n[ 472.075308] process_one_work+0x5d2/0xe00\n[ 472.075308] worker_thread+0xe1d/0x1660\n[ 472.075308] ? pr_cont_work+0x5e0/0x5e0\n[ 472.075308] kthread+0x2b7/0x350\n[ 472.075308] ? pr_cont_work+0x5e0/0x5e0\n[ 472.075308] ? kthread_blkcg+0xd0/0xd0\n[ 472.075308] ret_from_fork+0x4d/0x80\n[ 472.075308] ? kthread_blkcg+0xd0/0xd0\n[ 472.075308] ret_from_fork_asm+0x11/0x20\n[ 472.075308] \u0026lt;/TASK\u0026gt;\n[ 472.075308] ==================================================================\n[ 472.094860] Disabling lock debugging due to kernel taint\n[ 472.096136] BUG: kernel NULL pointer dereference, address: 0000000000000158\n[ 472.096136] #PF: supervisor write access in kernel mode\n[ 472.096136] #PF: error_code(0x0002) - not-present page\n[ 472.096136] PGD 0 P4D 0\n[ 472.096136] Oops: 0002 [#1] PREEMPT SMP KASAN NOPTI\n[ 472.096136] CPU: 0 PID: 7 Comm: kworker/0:0 Tainted: G B 6.9.0-rc5-00356-g78c0094a146b #36\n[ 472.096136] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu4\n[ 472.096136] Workqueue: events l2cap_chan_timeout\n[ 472.096136] RIP: 0010:mutex_lock+0x88/0xc0\n[ 472.096136] Code: be 08 00 00 00 e8 f8 23 1f fd 4c 89 f7 be 08 00 00 00 e8 eb 23 1f fd 42 80 3c 23 00 74 08 48 88\n[ 472.096136] RSP: 0018:ffff88800744fc78 EFLAGS: 00000246\n[ 472.096136] RAX: 0000000000000000 RBX: 1ffff11000e89f8f RCX: ffffffff8457c865\n[ 472.096136] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff88800744fc78\n[ 472.096136] RBP: 0000000000000158 R08: ffff88800744fc7f R09: 1ffff11000e89f8f\n[ 472.096136] R10: dffffc0000000000 R11: ffffed1000e89f90 R12: dffffc0000000000\n[ 472.096136] R13: 0000000000000158 R14: ffff88800744fc78 R15: ffff888007405a00\n[ 472.096136] FS: 0000000000000000(0000) GS:ffff88806d200000(0000) knlGS:0000000000000000\n[ 472.096136] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 472.096136] CR2: 0000000000000158 CR3: 000000000da32000 CR4: 00000000000006f0\n[ 472.096136] Call Trace:\n[ 472.096136] \u0026lt;TASK\u0026gt;\n[ 472.096136] ? __die_body+0x8d/0xe0\n[ 472.096136] ? page_fault_oops+0x6b8/0x9a0\n[ 472.096136] ? kernelmode_fixup_or_oops+0x20c/0x2a0\n[ 472.096136] ? do_user_addr_fault+0x1027/0x1340\n[ 472.096136] ? _printk+0x7a/0xa0\n[ 472.096136] ? mutex_lock+0x68/0xc0\n[ 472.096136] ? add_taint+0x42/0xd0\n[ 472.096136] ? exc_page_fault+0x6a/0x1b0\n[ 472.096136] ? asm_exc_page_fault+0x26/0x30\n[ 472.096136] ? mutex_lock+0x75/0xc0\n[ 472.096136] ? mutex_lock+0x88/0xc0\n[ 472.096136] ? mutex_lock+0x75/0xc0\n[ 472.096136] l2cap_chan_timeo\n---truncated---(CVE-2024-27399)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nphonet/pep: fix racy skb_queue_empty() use\r\n\r\nThe receive queues are protected by their respective spin-lock, not\nthe socket lock. This could lead to skb_peek() unexpectedly\nreturning NULL or a pointer to an already dequeued socket buffer.(CVE-2024-27402)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nnetfilter: bridge: confirm multicast packets before passing them up the stack\r\n\r\nconntrack nf_confirm logic cannot handle cloned skbs referencing\nthe same nf_conn entry, which will happen for multicast (broadcast)\nframes on bridges.\r\n\r\n Example:\n macvlan0\n |\n br0\n / \\\n ethX ethY\r\n\r\n ethX (or Y) receives a L2 multicast or broadcast packet containing\n an IP packet, flow is not yet in conntrack table.\r\n\r\n 1. skb passes through bridge and fake-ip (br_netfilter)Prerouting.\n -\u0026gt; skb-\u0026gt;_nfct now references a unconfirmed entry\n 2. skb is broad/mcast packet. bridge now passes clones out on each bridge\n interface.\n 3. skb gets passed up the stack.\n 4. In macvlan case, macvlan driver retains clone(s) of the mcast skb\n and schedules a work queue to send them out on the lower devices.\r\n\r\n The clone skb-\u0026gt;_nfct is not a copy, it is the same entry as the\n original skb. The macvlan rx handler then returns RX_HANDLER_PASS.\n 5. Normal conntrack hooks (in NF_INET_LOCAL_IN) confirm the orig skb.\r\n\r\nThe Macvlan broadcast worker and normal confirm path will race.\r\n\r\nThis race will not happen if step 2 already confirmed a clone. In that\ncase later steps perform skb_clone() with skb-\u0026gt;_nfct already confirmed (in\nhash table). This works fine.\r\n\r\nBut such confirmation won\u0026apos;t happen when eb/ip/nftables rules dropped the\npackets before they reached the nf_confirm step in postrouting.\r\n\r\nPablo points out that nf_conntrack_bridge doesn\u0026apos;t allow use of stateful\nnat, so we can safely discard the nf_conn entry and let inet call\nconntrack again.\r\n\r\nThis doesn\u0026apos;t work for bridge netfilter: skb could have a nat\ntransformation. Also bridge nf prevents re-invocation of inet prerouting\nvia \u0026apos;sabotage_in\u0026apos; hook.\r\n\r\nWork around this problem by explicit confirmation of the entry at LOCAL_IN\ntime, before upper layer has a chance to clone the unconfirmed entry.\r\n\r\nThe downside is that this disables NAT and conntrack helpers.\r\n\r\nAlternative fix would be to add locking to all code parts that deal with\nunconfirmed packets, but even if that could be done in a sane way this\nopens up other problems, for example:\r\n\r\n-m physdev --physdev-out eth0 -j SNAT --snat-to 1.2.3.4\n-m physdev --physdev-out eth1 -j SNAT --snat-to 1.2.3.5\r\n\r\nFor multicast case, only one of such conflicting mappings will be\ncreated, conntrack only handles 1:1 NAT mappings.\r\n\r\nUsers should set create a setup that explicitly marks such traffic\nNOTRACK (conntrack bypass) to avoid this, but we cannot auto-bypass\nthem, ruleset might have accept rules for untracked traffic already,\nso user-visible behaviour would change.(CVE-2024-27415)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nusb: typec: altmodes/displayport: create sysfs nodes as driver\u0026apos;s default device attribute group\r\n\r\nThe DisplayPort driver\u0026apos;s sysfs nodes may be present to the userspace before\ntypec_altmode_set_drvdata() completes in dp_altmode_probe. This means that\na sysfs read can trigger a NULL pointer error by deferencing dp-\u0026gt;hpd in\nhpd_show or dp-\u0026gt;lock in pin_assignment_show, as dev_get_drvdata() returns\nNULL in those cases.\r\n\r\nRemove manual sysfs node creation in favor of adding attribute group as\ndefault for devices bound to the driver. The ATTRIBUTE_GROUPS() macro is\nnot used here otherwise the path to the sysfs nodes is no longer compliant\nwith the ABI.(CVE-2024-35790)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nPCI/PM: Drain runtime-idle callbacks before driver removal\r\n\r\nA race condition between the .runtime_idle() callback and the .remove()\ncallback in the rtsx_pcr PCI driver leads to a kernel crash due to an\nunhandled page fault [1].\r\n\r\nThe problem is that rtsx_pci_runtime_idle() is not expected to be running\nafter pm_runtime_get_sync() has been called, but the latter doesn\u0026apos;t really\nguarantee that. It only guarantees that the suspend and resume callbacks\nwill not be running when it returns.\r\n\r\nHowever, if a .runtime_idle() callback is already running when\npm_runtime_get_sync() is called, the latter will notice that the runtime PM\nstatus of the device is RPM_ACTIVE and it will return right away without\nwaiting for the former to complete. In fact, it cannot wait for\n.runtime_idle() to complete because it may be called from that callback (it\narguably does not make much sense to do that, but it is not strictly\nprohibited).\r\n\r\nThus in general, whoever is providing a .runtime_idle() callback needs\nto protect it from running in parallel with whatever code runs after\npm_runtime_get_sync(). [Note that .runtime_idle() will not start after\npm_runtime_get_sync() has returned, but it may continue running then if it\nhas started earlier.]\r\n\r\nOne way to address that race condition is to call pm_runtime_barrier()\nafter pm_runtime_get_sync() (not before it, because a nonzero value of the\nruntime PM usage counter is necessary to prevent runtime PM callbacks from\nbeing invoked) to wait for the .runtime_idle() callback to complete should\nit be running at that point. A suitable place for doing that is in\npci_device_remove() which calls pm_runtime_get_sync() before removing the\ndriver, so it may as well call pm_runtime_barrier() subsequently, which\nwill prevent the race in question from occurring, not just in the rtsx_pcr\ndriver, but in any PCI drivers providing .runtime_idle() callbacks.(CVE-2024-35809)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nmlxsw: spectrum_acl_tcam: Fix memory leak during rehash\r\n\r\nThe rehash delayed work migrates filters from one region to another.\nThis is done by iterating over all chunks (all the filters with the same\npriority) in the region and in each chunk iterating over all the\nfilters.\r\n\r\nIf the migration fails, the code tries to migrate the filters back to\nthe old region. However, the rollback itself can also fail in which case\nanother migration will be erroneously performed. Besides the fact that\nthis ping pong is not a very good idea, it also creates a problem.\r\n\r\nEach virtual chunk references two chunks: The currently used one\n(\u0026apos;vchunk-\u0026gt;chunk\u0026apos;) and a backup (\u0026apos;vchunk-\u0026gt;chunk2\u0026apos;). During migration the\nfirst holds the chunk we want to migrate filters to and the second holds\nthe chunk we are migrating filters from.\r\n\r\nThe code currently assumes - but does not verify - that the backup chunk\ndoes not exist (NULL) if the currently used chunk does not reference the\ntarget region. This assumption breaks when we are trying to rollback a\nrollback, resulting in the backup chunk being overwritten and leaked\n[1].\r\n\r\nFix by not rolling back a failed rollback and add a warning to avoid\nfuture cases.\r\n\r\n[1]\nWARNING: CPU: 5 PID: 1063 at lib/parman.c:291 parman_destroy+0x17/0x20\nModules linked in:\nCPU: 5 PID: 1063 Comm: kworker/5:11 Tainted: G W 6.9.0-rc2-custom-00784-gc6a05c468a0b #14\nHardware name: Mellanox Technologies Ltd. MSN3700/VMOD0005, BIOS 5.11 01/06/2019\nWorkqueue: mlxsw_core mlxsw_sp_acl_tcam_vregion_rehash_work\nRIP: 0010:parman_destroy+0x17/0x20\n[...]\nCall Trace:\n \u0026lt;TASK\u0026gt;\n mlxsw_sp_acl_atcam_region_fini+0x19/0x60\n mlxsw_sp_acl_tcam_region_destroy+0x49/0xf0\n mlxsw_sp_acl_tcam_vregion_rehash_work+0x1f1/0x470\n process_one_work+0x151/0x370\n worker_thread+0x2cb/0x3e0\n kthread+0xd0/0x100\n ret_from_fork+0x34/0x50\n ret_from_fork_asm+0x1a/0x30\n \u0026lt;/TASK\u0026gt;(CVE-2024-35853)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nmlxsw: spectrum_acl_tcam: Fix possible use-after-free during rehash\r\n\r\nThe rehash delayed work migrates filters from one region to another\naccording to the number of available credits.\r\n\r\nThe migrated from region is destroyed at the end of the work if the\nnumber of credits is non-negative as the assumption is that this is\nindicative of migration being complete. This assumption is incorrect as\na non-negative number of credits can also be the result of a failed\nmigration.\r\n\r\nThe destruction of a region that still has filters referencing it can\nresult in a use-after-free [1].\r\n\r\nFix by not destroying the region if migration failed.\r\n\r\n[1]\nBUG: KASAN: slab-use-after-free in mlxsw_sp_acl_ctcam_region_entry_remove+0x21d/0x230\nRead of size 8 at addr ffff8881735319e8 by task kworker/0:31/3858\r\n\r\nCPU: 0 PID: 3858 Comm: kworker/0:31 Tainted: G W 6.9.0-rc2-custom-00782-gf2275c2157d8 #5\nHardware name: Mellanox Technologies Ltd. MSN3700/VMOD0005, BIOS 5.11 01/06/2019\nWorkqueue: mlxsw_core mlxsw_sp_acl_tcam_vregion_rehash_work\nCall Trace:\n \u0026lt;TASK\u0026gt;\n dump_stack_lvl+0xc6/0x120\n print_report+0xce/0x670\n kasan_report+0xd7/0x110\n mlxsw_sp_acl_ctcam_region_entry_remove+0x21d/0x230\n mlxsw_sp_acl_ctcam_entry_del+0x2e/0x70\n mlxsw_sp_acl_atcam_entry_del+0x81/0x210\n mlxsw_sp_acl_tcam_vchunk_migrate_all+0x3cd/0xb50\n mlxsw_sp_acl_tcam_vregion_rehash_work+0x157/0x1300\n process_one_work+0x8eb/0x19b0\n worker_thread+0x6c9/0xf70\n kthread+0x2c9/0x3b0\n ret_from_fork+0x4d/0x80\n ret_from_fork_asm+0x1a/0x30\n \u0026lt;/TASK\u0026gt;\r\n\r\nAllocated by task 174:\n kasan_save_stack+0x33/0x60\n kasan_save_track+0x14/0x30\n __kasan_kmalloc+0x8f/0xa0\n __kmalloc+0x19c/0x360\n mlxsw_sp_acl_tcam_region_create+0xdf/0x9c0\n mlxsw_sp_acl_tcam_vregion_rehash_work+0x954/0x1300\n process_one_work+0x8eb/0x19b0\n worker_thread+0x6c9/0xf70\n kthread+0x2c9/0x3b0\n ret_from_fork+0x4d/0x80\n ret_from_fork_asm+0x1a/0x30\r\n\r\nFreed by task 7:\n kasan_save_stack+0x33/0x60\n kasan_save_track+0x14/0x30\n kasan_save_free_info+0x3b/0x60\n poison_slab_object+0x102/0x170\n __kasan_slab_free+0x14/0x30\n kfree+0xc1/0x290\n mlxsw_sp_acl_tcam_region_destroy+0x272/0x310\n mlxsw_sp_acl_tcam_vregion_rehash_work+0x731/0x1300\n process_one_work+0x8eb/0x19b0\n worker_thread+0x6c9/0xf70\n kthread+0x2c9/0x3b0\n ret_from_fork+0x4d/0x80\n ret_from_fork_asm+0x1a/0x30(CVE-2024-35854)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nmlxsw: spectrum_acl_tcam: Fix possible use-after-free during activity update\r\n\r\nThe rule activity update delayed work periodically traverses the list of\nconfigured rules and queries their activity from the device.\r\n\r\nAs part of this task it accesses the entry pointed by \u0026apos;ventry-\u0026gt;entry\u0026apos;,\nbut this entry can be changed concurrently by the rehash delayed work,\nleading to a use-after-free [1].\r\n\r\nFix by closing the race and perform the activity query under the\n\u0026apos;vregion-\u0026gt;lock\u0026apos; mutex.\r\n\r\n[1]\nBUG: KASAN: slab-use-after-free in mlxsw_sp_acl_tcam_flower_rule_activity_get+0x121/0x140\nRead of size 8 at addr ffff8881054ed808 by task kworker/0:18/181\r\n\r\nCPU: 0 PID: 181 Comm: kworker/0:18 Not tainted 6.9.0-rc2-custom-00781-gd5ab772d32f7 #2\nHardware name: Mellanox Technologies Ltd. MSN3700/VMOD0005, BIOS 5.11 01/06/2019\nWorkqueue: mlxsw_core mlxsw_sp_acl_rule_activity_update_work\nCall Trace:\n \u0026lt;TASK\u0026gt;\n dump_stack_lvl+0xc6/0x120\n print_report+0xce/0x670\n kasan_report+0xd7/0x110\n mlxsw_sp_acl_tcam_flower_rule_activity_get+0x121/0x140\n mlxsw_sp_acl_rule_activity_update_work+0x219/0x400\n process_one_work+0x8eb/0x19b0\n worker_thread+0x6c9/0xf70\n kthread+0x2c9/0x3b0\n ret_from_fork+0x4d/0x80\n ret_from_fork_asm+0x1a/0x30\n \u0026lt;/TASK\u0026gt;\r\n\r\nAllocated by task 1039:\n kasan_save_stack+0x33/0x60\n kasan_save_track+0x14/0x30\n __kasan_kmalloc+0x8f/0xa0\n __kmalloc+0x19c/0x360\n mlxsw_sp_acl_tcam_entry_create+0x7b/0x1f0\n mlxsw_sp_acl_tcam_vchunk_migrate_all+0x30d/0xb50\n mlxsw_sp_acl_tcam_vregion_rehash_work+0x157/0x1300\n process_one_work+0x8eb/0x19b0\n worker_thread+0x6c9/0xf70\n kthread+0x2c9/0x3b0\n ret_from_fork+0x4d/0x80\n ret_from_fork_asm+0x1a/0x30\r\n\r\nFreed by task 1039:\n kasan_save_stack+0x33/0x60\n kasan_save_track+0x14/0x30\n kasan_save_free_info+0x3b/0x60\n poison_slab_object+0x102/0x170\n __kasan_slab_free+0x14/0x30\n kfree+0xc1/0x290\n mlxsw_sp_acl_tcam_vchunk_migrate_all+0x3d7/0xb50\n mlxsw_sp_acl_tcam_vregion_rehash_work+0x157/0x1300\n process_one_work+0x8eb/0x19b0\n worker_thread+0x6c9/0xf70\n kthread+0x2c9/0x3b0\n ret_from_fork+0x4d/0x80\n ret_from_fork_asm+0x1a/0x30(CVE-2024-35855)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nipv6: Fix infinite recursion in fib6_dump_done().\r\n\r\nsyzkaller reported infinite recursive calls of fib6_dump_done() during\nnetlink socket destruction. [1]\r\n\r\nFrom the log, syzkaller sent an AF_UNSPEC RTM_GETROUTE message, and then\nthe response was generated. The following recvmmsg() resumed the dump\nfor IPv6, but the first call of inet6_dump_fib() failed at kzalloc() due\nto the fault injection. [0]\r\n\r\n 12:01:34 executing program 3:\n r0 = socket$nl_route(0x10, 0x3, 0x0)\n sendmsg$nl_route(r0, ... snip ...)\n recvmmsg(r0, ... snip ...) (fail_nth: 8)\r\n\r\nHere, fib6_dump_done() was set to nlk_sk(sk)-\u0026gt;cb.done, and the next call\nof inet6_dump_fib() set it to nlk_sk(sk)-\u0026gt;cb.args[3]. syzkaller stopped\nreceiving the response halfway through, and finally netlink_sock_destruct()\ncalled nlk_sk(sk)-\u0026gt;cb.done().\r\n\r\nfib6_dump_done() calls fib6_dump_end() and nlk_sk(sk)-\u0026gt;cb.done() if it\nis still not NULL. fib6_dump_end() rewrites nlk_sk(sk)-\u0026gt;cb.done() by\nnlk_sk(sk)-\u0026gt;cb.args[3], but it has the same function, not NULL, calling\nitself recursively and hitting the stack guard page.\r\n\r\nTo avoid the issue, let\u0026apos;s set the destructor after kzalloc().\r\n\r\n[0]:\nFAULT_INJECTION: forcing a failure.\nname failslab, interval 1, probability 0, space 0, times 0\nCPU: 1 PID: 432110 Comm: syz-executor.3 Not tainted 6.8.0-12821-g537c2e91d354-dirty #11\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\nCall Trace:\n \u0026lt;TASK\u0026gt;\n dump_stack_lvl (lib/dump_stack.c:117)\n should_fail_ex (lib/fault-inject.c:52 lib/fault-inject.c:153)\n should_failslab (mm/slub.c:3733)\n kmalloc_trace (mm/slub.c:3748 mm/slub.c:3827 mm/slub.c:3992)\n inet6_dump_fib (./include/linux/slab.h:628 ./include/linux/slab.h:749 net/ipv6/ip6_fib.c:662)\n rtnl_dump_all (net/core/rtnetlink.c:4029)\n netlink_dump (net/netlink/af_netlink.c:2269)\n netlink_recvmsg (net/netlink/af_netlink.c:1988)\n ____sys_recvmsg (net/socket.c:1046 net/socket.c:2801)\n ___sys_recvmsg (net/socket.c:2846)\n do_recvmmsg (net/socket.c:2943)\n __x64_sys_recvmmsg (net/socket.c:3041 net/socket.c:3034 net/socket.c:3034)\r\n\r\n[1]:\nBUG: TASK stack guard page was hit at 00000000f2fa9af1 (stack is 00000000b7912430..000000009a436beb)\nstack guard page: 0000 [#1] PREEMPT SMP KASAN\nCPU: 1 PID: 223719 Comm: kworker/1:3 Not tainted 6.8.0-12821-g537c2e91d354-dirty #11\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\nWorkqueue: events netlink_sock_destruct_work\nRIP: 0010:fib6_dump_done (net/ipv6/ip6_fib.c:570)\nCode: 3c 24 e8 f3 e9 51 fd e9 28 fd ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 41 57 41 56 41 55 41 54 55 48 89 fd \u0026lt;53\u0026gt; 48 8d 5d 60 e8 b6 4d 07 fd 48 89 da 48 b8 00 00 00 00 00 fc ff\nRSP: 0018:ffffc9000d980000 EFLAGS: 00010293\nRAX: 0000000000000000 RBX: ffffffff84405990 RCX: ffffffff844059d3\nRDX: ffff8881028e0000 RSI: ffffffff84405ac2 RDI: ffff88810c02f358\nRBP: ffff88810c02f358 R08: 0000000000000007 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000224 R12: 0000000000000000\nR13: ffff888007c82c78 R14: ffff888007c82c68 R15: ffff888007c82c68\nFS: 0000000000000000(0000) GS:ffff88811b100000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: ffffc9000d97fff8 CR3: 0000000102309002 CR4: 0000000000770ef0\nPKRU: 55555554\nCall Trace:\n \u0026lt;#DF\u0026gt;\n \u0026lt;/#DF\u0026gt;\n \u0026lt;TASK\u0026gt;\n fib6_dump_done (net/ipv6/ip6_fib.c:572 (discriminator 1))\n fib6_dump_done (net/ipv6/ip6_fib.c:572 (discriminator 1))\n ...\n fib6_dump_done (net/ipv6/ip6_fib.c:572 (discriminator 1))\n fib6_dump_done (net/ipv6/ip6_fib.c:572 (discriminator 1))\n netlink_sock_destruct (net/netlink/af_netlink.c:401)\n __sk_destruct (net/core/sock.c:2177 (discriminator 2))\n sk_destruct (net/core/sock.c:2224)\n __sk_free (net/core/sock.c:2235)\n sk_free (net/core/sock.c:2246)\n process_one_work (kernel/workqueue.c:3259)\n worker_thread (kernel/workqueue.c:3329 kernel/workqueue.\n---truncated---(CVE-2024-35886)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nerspan: make sure erspan_base_hdr is present in skb-\u0026gt;head\r\n\r\nsyzbot reported a problem in ip6erspan_rcv() [1]\r\n\r\nIssue is that ip6erspan_rcv() (and erspan_rcv()) no longer make\nsure erspan_base_hdr is present in skb linear part (skb-\u0026gt;head)\nbefore getting @ver field from it.\r\n\r\nAdd the missing pskb_may_pull() calls.\r\n\r\nv2: Reload iph pointer in erspan_rcv() after pskb_may_pull()\n because skb-\u0026gt;head might have changed.\r\n\r\n[1]\r\n\r\n BUG: KMSAN: uninit-value in pskb_may_pull_reason include/linux/skbuff.h:2742 [inline]\n BUG: KMSAN: uninit-value in pskb_may_pull include/linux/skbuff.h:2756 [inline]\n BUG: KMSAN: uninit-value in ip6erspan_rcv net/ipv6/ip6_gre.c:541 [inline]\n BUG: KMSAN: uninit-value in gre_rcv+0x11f8/0x1930 net/ipv6/ip6_gre.c:610\n pskb_may_pull_reason include/linux/skbuff.h:2742 [inline]\n pskb_may_pull include/linux/skbuff.h:2756 [inline]\n ip6erspan_rcv net/ipv6/ip6_gre.c:541 [inline]\n gre_rcv+0x11f8/0x1930 net/ipv6/ip6_gre.c:610\n ip6_protocol_deliver_rcu+0x1d4c/0x2ca0 net/ipv6/ip6_input.c:438\n ip6_input_finish net/ipv6/ip6_input.c:483 [inline]\n NF_HOOK include/linux/netfilter.h:314 [inline]\n ip6_input+0x15d/0x430 net/ipv6/ip6_input.c:492\n ip6_mc_input+0xa7e/0xc80 net/ipv6/ip6_input.c:586\n dst_input include/net/dst.h:460 [inline]\n ip6_rcv_finish+0x955/0x970 net/ipv6/ip6_input.c:79\n NF_HOOK include/linux/netfilter.h:314 [inline]\n ipv6_rcv+0xde/0x390 net/ipv6/ip6_input.c:310\n __netif_receive_skb_one_core net/core/dev.c:5538 [inline]\n __netif_receive_skb+0x1da/0xa00 net/core/dev.c:5652\n netif_receive_skb_internal net/core/dev.c:5738 [inline]\n netif_receive_skb+0x58/0x660 net/core/dev.c:5798\n tun_rx_batched+0x3ee/0x980 drivers/net/tun.c:1549\n tun_get_user+0x5566/0x69e0 drivers/net/tun.c:2002\n tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048\n call_write_iter include/linux/fs.h:2108 [inline]\n new_sync_write fs/read_write.c:497 [inline]\n vfs_write+0xb63/0x1520 fs/read_write.c:590\n ksys_write+0x20f/0x4c0 fs/read_write.c:643\n __do_sys_write fs/read_write.c:655 [inline]\n __se_sys_write fs/read_write.c:652 [inline]\n __x64_sys_write+0x93/0xe0 fs/read_write.c:652\n do_syscall_64+0xd5/0x1f0\n entry_SYSCALL_64_after_hwframe+0x6d/0x75\r\n\r\nUninit was created at:\n slab_post_alloc_hook mm/slub.c:3804 [inline]\n slab_alloc_node mm/slub.c:3845 [inline]\n kmem_cache_alloc_node+0x613/0xc50 mm/slub.c:3888\n kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:577\n __alloc_skb+0x35b/0x7a0 net/core/skbuff.c:668\n alloc_skb include/linux/skbuff.h:1318 [inline]\n alloc_skb_with_frags+0xc8/0xbf0 net/core/skbuff.c:6504\n sock_alloc_send_pskb+0xa81/0xbf0 net/core/sock.c:2795\n tun_alloc_skb drivers/net/tun.c:1525 [inline]\n tun_get_user+0x209a/0x69e0 drivers/net/tun.c:1846\n tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048\n call_write_iter include/linux/fs.h:2108 [inline]\n new_sync_write fs/read_write.c:497 [inline]\n vfs_write+0xb63/0x1520 fs/read_write.c:590\n ksys_write+0x20f/0x4c0 fs/read_write.c:643\n __do_sys_write fs/read_write.c:655 [inline]\n __se_sys_write fs/read_write.c:652 [inline]\n __x64_sys_write+0x93/0xe0 fs/read_write.c:652\n do_syscall_64+0xd5/0x1f0\n entry_SYSCALL_64_after_hwframe+0x6d/0x75\r\n\r\nCPU: 1 PID: 5045 Comm: syz-executor114 Not tainted 6.9.0-rc1-syzkaller-00021-g962490525cff #0(CVE-2024-35888)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nbpf, sockmap: Prevent lock inversion deadlock in map delete elem\r\n\r\nsyzkaller started using corpuses where a BPF tracing program deletes\nelements from a sockmap/sockhash map. Because BPF tracing programs can be\ninvoked from any interrupt context, locks taken during a map_delete_elem\noperation must be hardirq-safe. Otherwise a deadlock due to lock inversion\nis possible, as reported by lockdep:\r\n\r\n CPU0 CPU1\n ---- ----\n lock(\u0026amp;htab-\u0026gt;buckets[i].lock);\n local_irq_disable();\n lock(\u0026amp;host-\u0026gt;lock);\n lock(\u0026amp;htab-\u0026gt;buckets[i].lock);\n \u0026lt;Interrupt\u0026gt;\n lock(\u0026amp;host-\u0026gt;lock);\r\n\r\nLocks in sockmap are hardirq-unsafe by design. We expects elements to be\ndeleted from sockmap/sockhash only in task (normal) context with interrupts\nenabled, or in softirq context.\r\n\r\nDetect when map_delete_elem operation is invoked from a context which is\n_not_ hardirq-unsafe, that is interrupts are disabled, and bail out with an\nerror.\r\n\r\nNote that map updates are not affected by this issue. BPF verifier does not\nallow updating sockmap/sockhash from a BPF tracing program today.(CVE-2024-35895)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nnetfilter: validate user input for expected length\r\n\r\nI got multiple syzbot reports showing old bugs exposed\nby BPF after commit 20f2505fb436 (\u0026quot;bpf: Try to avoid kzalloc\nin cgroup/{s,g}etsockopt\u0026quot;)\r\n\r\nsetsockopt() @optlen argument should be taken into account\nbefore copying data.\r\n\r\n BUG: KASAN: slab-out-of-bounds in copy_from_sockptr_offset include/linux/sockptr.h:49 [inline]\n BUG: KASAN: slab-out-of-bounds in copy_from_sockptr include/linux/sockptr.h:55 [inline]\n BUG: KASAN: slab-out-of-bounds in do_replace net/ipv4/netfilter/ip_tables.c:1111 [inline]\n BUG: KASAN: slab-out-of-bounds in do_ipt_set_ctl+0x902/0x3dd0 net/ipv4/netfilter/ip_tables.c:1627\nRead of size 96 at addr ffff88802cd73da0 by task syz-executor.4/7238\r\n\r\nCPU: 1 PID: 7238 Comm: syz-executor.4 Not tainted 6.9.0-rc2-next-20240403-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024\nCall Trace:\n \u0026lt;TASK\u0026gt;\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114\n print_address_description mm/kasan/report.c:377 [inline]\n print_report+0x169/0x550 mm/kasan/report.c:488\n kasan_report+0x143/0x180 mm/kasan/report.c:601\n kasan_check_range+0x282/0x290 mm/kasan/generic.c:189\n __asan_memcpy+0x29/0x70 mm/kasan/shadow.c:105\n copy_from_sockptr_offset include/linux/sockptr.h:49 [inline]\n copy_from_sockptr include/linux/sockptr.h:55 [inline]\n do_replace net/ipv4/netfilter/ip_tables.c:1111 [inline]\n do_ipt_set_ctl+0x902/0x3dd0 net/ipv4/netfilter/ip_tables.c:1627\n nf_setsockopt+0x295/0x2c0 net/netfilter/nf_sockopt.c:101\n do_sock_setsockopt+0x3af/0x720 net/socket.c:2311\n __sys_setsockopt+0x1ae/0x250 net/socket.c:2334\n __do_sys_setsockopt net/socket.c:2343 [inline]\n __se_sys_setsockopt net/socket.c:2340 [inline]\n __x64_sys_setsockopt+0xb5/0xd0 net/socket.c:2340\n do_syscall_64+0xfb/0x240\n entry_SYSCALL_64_after_hwframe+0x72/0x7a\nRIP: 0033:0x7fd22067dde9\nCode: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u0026lt;48\u0026gt; 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007fd21f9ff0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036\nRAX: ffffffffffffffda RBX: 00007fd2207abf80 RCX: 00007fd22067dde9\nRDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000003\nRBP: 00007fd2206ca47a R08: 0000000000000001 R09: 0000000000000000\nR10: 0000000020000880 R11: 0000000000000246 R12: 0000000000000000\nR13: 000000000000000b R14: 00007fd2207abf80 R15: 00007ffd2d0170d8\n \u0026lt;/TASK\u0026gt;\r\n\r\nAllocated by task 7238:\n kasan_save_stack mm/kasan/common.c:47 [inline]\n kasan_save_track+0x3f/0x80 mm/kasan/common.c:68\n poison_kmalloc_redzone mm/kasan/common.c:370 [inline]\n __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:387\n kasan_kmalloc include/linux/kasan.h:211 [inline]\n __do_kmalloc_node mm/slub.c:4069 [inline]\n __kmalloc_noprof+0x200/0x410 mm/slub.c:4082\n kmalloc_noprof include/linux/slab.h:664 [inline]\n __cgroup_bpf_run_filter_setsockopt+0xd47/0x1050 kernel/bpf/cgroup.c:1869\n do_sock_setsockopt+0x6b4/0x720 net/socket.c:2293\n __sys_setsockopt+0x1ae/0x250 net/socket.c:2334\n __do_sys_setsockopt net/socket.c:2343 [inline]\n __se_sys_setsockopt net/socket.c:2340 [inline]\n __x64_sys_setsockopt+0xb5/0xd0 net/socket.c:2340\n do_syscall_64+0xfb/0x240\n entry_SYSCALL_64_after_hwframe+0x72/0x7a\r\n\r\nThe buggy address belongs to the object at ffff88802cd73da0\n which belongs to the cache kmalloc-8 of size 8\nThe buggy address is located 0 bytes inside of\n allocated 1-byte region [ffff88802cd73da0, ffff88802cd73da1)\r\n\r\nThe buggy address belongs to the physical page:\npage: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88802cd73020 pfn:0x2cd73\nflags: 0xfff80000000000(node=0|zone=1|lastcpupid=0xfff)\npage_type: 0xffffefff(slab)\nraw: 00fff80000000000 ffff888015041280 dead000000000100 dead000000000122\nraw: ffff88802cd73020 000000008080007f 00000001ffffefff 00\n---truncated---(CVE-2024-35896)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nbpf: Protect against int overflow for stack access size\r\n\r\nThis patch re-introduces protection against the size of access to stack\nmemory being negative; the access size can appear negative as a result\nof overflowing its signed int representation. This should not actually\nhappen, as there are other protections along the way, but we should\nprotect against it anyway. One code path was missing such protections\n(fixed in the previous patch in the series), causing out-of-bounds array\naccesses in check_stack_range_initialized(). This patch causes the\nverification of a program with such a non-sensical access size to fail.\r\n\r\nThis check used to exist in a more indirect way, but was inadvertendly\nremoved in a833a17aeac7.(CVE-2024-35905)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nnfc: nci: Fix uninit-value in nci_dev_up and nci_ntf_packet\r\n\r\nsyzbot reported the following uninit-value access issue [1][2]:\r\n\r\nnci_rx_work() parses and processes received packet. When the payload\nlength is zero, each message type handler reads uninitialized payload\nand KMSAN detects this issue. The receipt of a packet with a zero-size\npayload is considered unexpected, and therefore, such packets should be\nsilently discarded.\r\n\r\nThis patch resolved this issue by checking payload size before calling\neach message type handler codes.(CVE-2024-35915)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nusb: typec: ucsi: Limit read size on v1.2\r\n\r\nBetween UCSI 1.2 and UCSI 2.0, the size of the MESSAGE_IN region was\nincreased from 16 to 256. In order to avoid overflowing reads for older\nsystems, add a mechanism to use the read UCSI version to truncate read\nsizes on UCSI v1.2.(CVE-2024-35924)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nblock: prevent division by zero in blk_rq_stat_sum()\r\n\r\nThe expression dst-\u0026gt;nr_samples + src-\u0026gt;nr_samples may\nhave zero value on overflow. It is necessary to add\na check to avoid division by zero.\r\n\r\nFound by Linux Verification Center (linuxtesting.org) with Svace.(CVE-2024-35925)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nBluetooth: SCO: Fix not validating setsockopt user input\r\n\r\nsyzbot reported sco_sock_setsockopt() is copying data without\nchecking user input length.\r\n\r\nBUG: KASAN: slab-out-of-bounds in copy_from_sockptr_offset\ninclude/linux/sockptr.h:49 [inline]\nBUG: KASAN: slab-out-of-bounds in copy_from_sockptr\ninclude/linux/sockptr.h:55 [inline]\nBUG: KASAN: slab-out-of-bounds in sco_sock_setsockopt+0xc0b/0xf90\nnet/bluetooth/sco.c:893\nRead of size 4 at addr ffff88805f7b15a3 by task syz-executor.5/12578(CVE-2024-35967)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ngeneve: fix header validation in geneve[6]_xmit_skb\r\n\r\nsyzbot is able to trigger an uninit-value in geneve_xmit() [1]\r\n\r\nProblem : While most ip tunnel helpers (like ip_tunnel_get_dsfield())\nuses skb_protocol(skb, true), pskb_inet_may_pull() is only using\nskb-\u0026gt;protocol.\r\n\r\nIf anything else than ETH_P_IPV6 or ETH_P_IP is found in skb-\u0026gt;protocol,\npskb_inet_may_pull() does nothing at all.\r\n\r\nIf a vlan tag was provided by the caller (af_packet in the syzbot case),\nthe network header might not point to the correct location, and skb\nlinear part could be smaller than expected.\r\n\r\nAdd skb_vlan_inet_prepare() to perform a complete mac validation.\r\n\r\nUse this in geneve for the moment, I suspect we need to adopt this\nmore broadly.\r\n\r\nv4 - Jakub reported v3 broke l2_tos_ttl_inherit.sh selftest\n - Only call __vlan_get_protocol() for vlan types.\r\n\r\nv2,v3 - Addressed Sabrina comments on v1 and v2\r\n\r\n[1]\r\n\r\nBUG: KMSAN: uninit-value in geneve_xmit_skb drivers/net/geneve.c:910 [inline]\n BUG: KMSAN: uninit-value in geneve_xmit+0x302d/0x5420 drivers/net/geneve.c:1030\n geneve_xmit_skb drivers/net/geneve.c:910 [inline]\n geneve_xmit+0x302d/0x5420 drivers/net/geneve.c:1030\n __netdev_start_xmit include/linux/netdevice.h:4903 [inline]\n netdev_start_xmit include/linux/netdevice.h:4917 [inline]\n xmit_one net/core/dev.c:3531 [inline]\n dev_hard_start_xmit+0x247/0xa20 net/core/dev.c:3547\n __dev_queue_xmit+0x348d/0x52c0 net/core/dev.c:4335\n dev_queue_xmit include/linux/netdevice.h:3091 [inline]\n packet_xmit+0x9c/0x6c0 net/packet/af_packet.c:276\n packet_snd net/packet/af_packet.c:3081 [inline]\n packet_sendmsg+0x8bb0/0x9ef0 net/packet/af_packet.c:3113\n sock_sendmsg_nosec net/socket.c:730 [inline]\n __sock_sendmsg+0x30f/0x380 net/socket.c:745\n __sys_sendto+0x685/0x830 net/socket.c:2191\n __do_sys_sendto net/socket.c:2203 [inline]\n __se_sys_sendto net/socket.c:2199 [inline]\n __x64_sys_sendto+0x125/0x1d0 net/socket.c:2199\n do_syscall_64+0xd5/0x1f0\n entry_SYSCALL_64_after_hwframe+0x6d/0x75\r\n\r\nUninit was created at:\n slab_post_alloc_hook mm/slub.c:3804 [inline]\n slab_alloc_node mm/slub.c:3845 [inline]\n kmem_cache_alloc_node+0x613/0xc50 mm/slub.c:3888\n kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:577\n __alloc_skb+0x35b/0x7a0 net/core/skbuff.c:668\n alloc_skb include/linux/skbuff.h:1318 [inline]\n alloc_skb_with_frags+0xc8/0xbf0 net/core/skbuff.c:6504\n sock_alloc_send_pskb+0xa81/0xbf0 net/core/sock.c:2795\n packet_alloc_skb net/packet/af_packet.c:2930 [inline]\n packet_snd net/packet/af_packet.c:3024 [inline]\n packet_sendmsg+0x722d/0x9ef0 net/packet/af_packet.c:3113\n sock_sendmsg_nosec net/socket.c:730 [inline]\n __sock_sendmsg+0x30f/0x380 net/socket.c:745\n __sys_sendto+0x685/0x830 net/socket.c:2191\n __do_sys_sendto net/socket.c:2203 [inline]\n __se_sys_sendto net/socket.c:2199 [inline]\n __x64_sys_sendto+0x125/0x1d0 net/socket.c:2199\n do_syscall_64+0xd5/0x1f0\n entry_SYSCALL_64_after_hwframe+0x6d/0x75\r\n\r\nCPU: 0 PID: 5033 Comm: syz-executor346 Not tainted 6.9.0-rc1-syzkaller-00005-g928a87efa423 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024(CVE-2024-35973)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nipv4: check for NULL idev in ip_route_use_hint()\r\n\r\nsyzbot was able to trigger a NULL deref in fib_validate_source()\nin an old tree [1].\r\n\r\nIt appears the bug exists in latest trees.\r\n\r\nAll calls to __in_dev_get_rcu() must be checked for a NULL result.\r\n\r\n[1]\ngeneral protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN\nKASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\nCPU: 2 PID: 3257 Comm: syz-executor.3 Not tainted 5.10.0-syzkaller #0\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014\n RIP: 0010:fib_validate_source+0xbf/0x15a0 net/ipv4/fib_frontend.c:425\nCode: 18 f2 f2 f2 f2 42 c7 44 20 23 f3 f3 f3 f3 48 89 44 24 78 42 c6 44 20 27 f3 e8 5d 88 48 fc 4c 89 e8 48 c1 e8 03 48 89 44 24 18 \u0026lt;42\u0026gt; 80 3c 20 00 74 08 4c 89 ef e8 d2 15 98 fc 48 89 5c 24 10 41 bf\nRSP: 0018:ffffc900015fee40 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: ffff88800f7a4000 RCX: ffff88800f4f90c0\nRDX: 0000000000000000 RSI: 0000000004001eac RDI: ffff8880160c64c0\nRBP: ffffc900015ff060 R08: 0000000000000000 R09: ffff88800f7a4000\nR10: 0000000000000002 R11: ffff88800f4f90c0 R12: dffffc0000000000\nR13: 0000000000000000 R14: 0000000000000000 R15: ffff88800f7a4000\nFS: 00007f938acfe6c0(0000) GS:ffff888058c00000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007f938acddd58 CR3: 000000001248e000 CR4: 0000000000352ef0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n ip_route_use_hint+0x410/0x9b0 net/ipv4/route.c:2231\n ip_rcv_finish_core+0x2c4/0x1a30 net/ipv4/ip_input.c:327\n ip_list_rcv_finish net/ipv4/ip_input.c:612 [inline]\n ip_sublist_rcv+0x3ed/0xe50 net/ipv4/ip_input.c:638\n ip_list_rcv+0x422/0x470 net/ipv4/ip_input.c:673\n __netif_receive_skb_list_ptype net/core/dev.c:5572 [inline]\n __netif_receive_skb_list_core+0x6b1/0x890 net/core/dev.c:5620\n __netif_receive_skb_list net/core/dev.c:5672 [inline]\n netif_receive_skb_list_internal+0x9f9/0xdc0 net/core/dev.c:5764\n netif_receive_skb_list+0x55/0x3e0 net/core/dev.c:5816\n xdp_recv_frames net/bpf/test_run.c:257 [inline]\n xdp_test_run_batch net/bpf/test_run.c:335 [inline]\n bpf_test_run_xdp_live+0x1818/0x1d00 net/bpf/test_run.c:363\n bpf_prog_test_run_xdp+0x81f/0x1170 net/bpf/test_run.c:1376\n bpf_prog_test_run+0x349/0x3c0 kernel/bpf/syscall.c:3736\n __sys_bpf+0x45c/0x710 kernel/bpf/syscall.c:5115\n __do_sys_bpf kernel/bpf/syscall.c:5201 [inline]\n __se_sys_bpf kernel/bpf/syscall.c:5199 [inline]\n __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5199(CVE-2024-36008)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nrtnetlink: Correct nested IFLA_VF_VLAN_LIST attribute validation\r\n\r\nEach attribute inside a nested IFLA_VF_VLAN_LIST is assumed to be a\nstruct ifla_vf_vlan_info so the size of such attribute needs to be at least\nof sizeof(struct ifla_vf_vlan_info) which is 14 bytes.\nThe current size validation in do_setvfinfo is against NLA_HDRLEN (4 bytes)\nwhich is less than sizeof(struct ifla_vf_vlan_info) so this validation\nis not enough and a too small attribute might be cast to a\nstruct ifla_vf_vlan_info, this might result in an out of bands\nread access when accessing the saved (casted) entry in ivvl.(CVE-2024-36017)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nnet: hns3: fix kernel crash when devlink reload during pf initialization\r\n\r\nThe devlink reload process will access the hardware resources,\nbut the register operation is done before the hardware is initialized.\nSo, processing the devlink reload during initialization may lead to kernel\ncrash. This patch fixes this by taking devl_lock during initialization.(CVE-2024-36021)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nmmc: sdhci-msm: pervent access to suspended controller\r\n\r\nGeneric sdhci code registers LED device and uses host-\u0026gt;runtime_suspended\nflag to protect access to it. The sdhci-msm driver doesn\u0026apos;t set this flag,\nwhich causes a crash when LED is accessed while controller is runtime\nsuspended. Fix this by setting the flag correctly.(CVE-2024-36029)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nnet: fix out-of-bounds access in ops_init\r\n\r\nnet_alloc_generic is called by net_alloc, which is called without any\nlocking. It reads max_gen_ptrs, which is changed under pernet_ops_rwsem. It\nis read twice, first to allocate an array, then to set s.len, which is\nlater used to limit the bounds of the array access.\r\n\r\nIt is possible that the array is allocated and another thread is\nregistering a new pernet ops, increments max_gen_ptrs, which is then used\nto set s.len with a larger than allocated length for the variable array.\r\n\r\nFix it by reading max_gen_ptrs only once in net_alloc_generic. If\nmax_gen_ptrs is later incremented, it will be caught in net_assign_generic.(CVE-2024-36883)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ntipc: fix UAF in error path\r\n\r\nSam Page (sam4k) working with Trend Micro Zero Day Initiative reported\na UAF in the tipc_buf_append() error path:\r\n\r\nBUG: KASAN: slab-use-after-free in kfree_skb_list_reason+0x47e/0x4c0\nlinux/net/core/skbuff.c:1183\nRead of size 8 at addr ffff88804d2a7c80 by task poc/8034\r\n\r\nCPU: 1 PID: 8034 Comm: poc Not tainted 6.8.2 #1\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS\n1.16.0-debian-1.16.0-5 04/01/2014\nCall Trace:\n \u0026lt;IRQ\u0026gt;\n __dump_stack linux/lib/dump_stack.c:88\n dump_stack_lvl+0xd9/0x1b0 linux/lib/dump_stack.c:106\n print_address_description linux/mm/kasan/report.c:377\n print_report+0xc4/0x620 linux/mm/kasan/report.c:488\n kasan_report+0xda/0x110 linux/mm/kasan/report.c:601\n kfree_skb_list_reason+0x47e/0x4c0 linux/net/core/skbuff.c:1183\n skb_release_data+0x5af/0x880 linux/net/core/skbuff.c:1026\n skb_release_all linux/net/core/skbuff.c:1094\n __kfree_skb linux/net/core/skbuff.c:1108\n kfree_skb_reason+0x12d/0x210 linux/net/core/skbuff.c:1144\n kfree_skb linux/./include/linux/skbuff.h:1244\n tipc_buf_append+0x425/0xb50 linux/net/tipc/msg.c:186\n tipc_link_input+0x224/0x7c0 linux/net/tipc/link.c:1324\n tipc_link_rcv+0x76e/0x2d70 linux/net/tipc/link.c:1824\n tipc_rcv+0x45f/0x10f0 linux/net/tipc/node.c:2159\n tipc_udp_recv+0x73b/0x8f0 linux/net/tipc/udp_media.c:390\n udp_queue_rcv_one_skb+0xad2/0x1850 linux/net/ipv4/udp.c:2108\n udp_queue_rcv_skb+0x131/0xb00 linux/net/ipv4/udp.c:2186\n udp_unicast_rcv_skb+0x165/0x3b0 linux/net/ipv4/udp.c:2346\n __udp4_lib_rcv+0x2594/0x3400 linux/net/ipv4/udp.c:2422\n ip_protocol_deliver_rcu+0x30c/0x4e0 linux/net/ipv4/ip_input.c:205\n ip_local_deliver_finish+0x2e4/0x520 linux/net/ipv4/ip_input.c:233\n NF_HOOK linux/./include/linux/netfilter.h:314\n NF_HOOK linux/./include/linux/netfilter.h:308\n ip_local_deliver+0x18e/0x1f0 linux/net/ipv4/ip_input.c:254\n dst_input linux/./include/net/dst.h:461\n ip_rcv_finish linux/net/ipv4/ip_input.c:449\n NF_HOOK linux/./include/linux/netfilter.h:314\n NF_HOOK linux/./include/linux/netfilter.h:308\n ip_rcv+0x2c5/0x5d0 linux/net/ipv4/ip_input.c:569\n __netif_receive_skb_one_core+0x199/0x1e0 linux/net/core/dev.c:5534\n __netif_receive_skb+0x1f/0x1c0 linux/net/core/dev.c:5648\n process_backlog+0x101/0x6b0 linux/net/core/dev.c:5976\n __napi_poll.constprop.0+0xba/0x550 linux/net/core/dev.c:6576\n napi_poll linux/net/core/dev.c:6645\n net_rx_action+0x95a/0xe90 linux/net/core/dev.c:6781\n __do_softirq+0x21f/0x8e7 linux/kernel/softirq.c:553\n do_softirq linux/kernel/softirq.c:454\n do_softirq+0xb2/0xf0 linux/kernel/softirq.c:441\n \u0026lt;/IRQ\u0026gt;\n \u0026lt;TASK\u0026gt;\n __local_bh_enable_ip+0x100/0x120 linux/kernel/softirq.c:381\n local_bh_enable linux/./include/linux/bottom_half.h:33\n rcu_read_unlock_bh linux/./include/linux/rcupdate.h:851\n __dev_queue_xmit+0x871/0x3ee0 linux/net/core/dev.c:4378\n dev_queue_xmit linux/./include/linux/netdevice.h:3169\n neigh_hh_output linux/./include/net/neighbour.h:526\n neigh_output linux/./include/net/neighbour.h:540\n ip_finish_output2+0x169f/0x2550 linux/net/ipv4/ip_output.c:235\n __ip_finish_output linux/net/ipv4/ip_output.c:313\n __ip_finish_output+0x49e/0x950 linux/net/ipv4/ip_output.c:295\n ip_finish_output+0x31/0x310 linux/net/ipv4/ip_output.c:323\n NF_HOOK_COND linux/./include/linux/netfilter.h:303\n ip_output+0x13b/0x2a0 linux/net/ipv4/ip_output.c:433\n dst_output linux/./include/net/dst.h:451\n ip_local_out linux/net/ipv4/ip_output.c:129\n ip_send_skb+0x3e5/0x560 linux/net/ipv4/ip_output.c:1492\n udp_send_skb+0x73f/0x1530 linux/net/ipv4/udp.c:963\n udp_sendmsg+0x1a36/0x2b40 linux/net/ipv4/udp.c:1250\n inet_sendmsg+0x105/0x140 linux/net/ipv4/af_inet.c:850\n sock_sendmsg_nosec linux/net/socket.c:730\n __sock_sendmsg linux/net/socket.c:745\n __sys_sendto+0x42c/0x4e0 linux/net/socket.c:2191\n __do_sys_sendto linux/net/socket.c:2203\n __se_sys_sendto linux/net/socket.c:2199\n __x64_sys_sendto+0xe0/0x1c0 linux/net/socket.c:2199\n do_syscall_x64 linux/arch/x86/entry/common.c:52\n do_syscall_\n---truncated---(CVE-2024-36886)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nmptcp: ensure snd_nxt is properly initialized on connect\r\n\r\nChristoph reported a splat hinting at a corrupted snd_una:\r\n\r\n WARNING: CPU: 1 PID: 38 at net/mptcp/protocol.c:1005 __mptcp_clean_una+0x4b3/0x620 net/mptcp/protocol.c:1005\n Modules linked in:\n CPU: 1 PID: 38 Comm: kworker/1:1 Not tainted 6.9.0-rc1-gbbeac67456c9 #59\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-2.el7 04/01/2014\n Workqueue: events mptcp_worker\n RIP: 0010:__mptcp_clean_una+0x4b3/0x620 net/mptcp/protocol.c:1005\n Code: be 06 01 00 00 bf 06 01 00 00 e8 a8 12 e7 fe e9 00 fe ff ff e8\n \t8e 1a e7 fe 0f b7 ab 3e 02 00 00 e9 d3 fd ff ff e8 7d 1a e7 fe\n \t\u0026lt;0f\u0026gt; 0b 4c 8b bb e0 05 00 00 e9 74 fc ff ff e8 6a 1a e7 fe 0f 0b e9\n RSP: 0018:ffffc9000013fd48 EFLAGS: 00010293\n RAX: 0000000000000000 RBX: ffff8881029bd280 RCX: ffffffff82382fe4\n RDX: ffff8881003cbd00 RSI: ffffffff823833c3 RDI: 0000000000000001\n RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000\n R10: 0000000000000000 R11: fefefefefefefeff R12: ffff888138ba8000\n R13: 0000000000000106 R14: ffff8881029bd908 R15: ffff888126560000\n FS: 0000000000000000(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 00007f604a5dae38 CR3: 0000000101dac002 CR4: 0000000000170ef0\n Call Trace:\n \u0026lt;TASK\u0026gt;\n __mptcp_clean_una_wakeup net/mptcp/protocol.c:1055 [inline]\n mptcp_clean_una_wakeup net/mptcp/protocol.c:1062 [inline]\n __mptcp_retrans+0x7f/0x7e0 net/mptcp/protocol.c:2615\n mptcp_worker+0x434/0x740 net/mptcp/protocol.c:2767\n process_one_work+0x1e0/0x560 kernel/workqueue.c:3254\n process_scheduled_works kernel/workqueue.c:3335 [inline]\n worker_thread+0x3c7/0x640 kernel/workqueue.c:3416\n kthread+0x121/0x170 kernel/kthread.c:388\n ret_from_fork+0x44/0x50 arch/x86/kernel/process.c:147\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243\n \u0026lt;/TASK\u0026gt;\r\n\r\nWhen fallback to TCP happens early on a client socket, snd_nxt\nis not yet initialized and any incoming ack will copy such value\ninto snd_una. If the mptcp worker (dumbly) tries mptcp-level\nre-injection after such ack, that would unconditionally trigger a send\nbuffer cleanup using \u0026apos;bad\u0026apos; snd_una values.\r\n\r\nWe could easily disable re-injection for fallback sockets, but such\ndumb behavior already helped catching a few subtle issues and a very\nlow to zero impact in practice.\r\n\r\nInstead address the issue always initializing snd_nxt (and write_seq,\nfor consistency) at connect time.(CVE-2024-36889)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ngpiolib: cdev: fix uninitialised kfifo\r\n\r\nIf a line is requested with debounce, and that results in debouncing\nin software, and the line is subsequently reconfigured to enable edge\ndetection then the allocation of the kfifo to contain edge events is\noverlooked. This results in events being written to and read from an\nuninitialised kfifo. Read events are returned to userspace.\r\n\r\nInitialise the kfifo in the case where the software debounce is\nalready active.(CVE-2024-36898)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ngpiolib: cdev: Fix use after free in lineinfo_changed_notify\r\n\r\nThe use-after-free issue occurs as follows: when the GPIO chip device file\nis being closed by invoking gpio_chrdev_release(), watched_lines is freed\nby bitmap_free(), but the unregistration of lineinfo_changed_nb notifier\nchain failed due to waiting write rwsem. Additionally, one of the GPIO\nchip\u0026apos;s lines is also in the release process and holds the notifier chain\u0026apos;s\nread rwsem. Consequently, a race condition leads to the use-after-free of\nwatched_lines.\r\n\r\nHere is the typical stack when issue happened:\r\n\r\n[free]\ngpio_chrdev_release()\n --\u0026gt; bitmap_free(cdev-\u0026gt;watched_lines) \u0026lt;-- freed\n --\u0026gt; blocking_notifier_chain_unregister()\n --\u0026gt; down_write(\u0026amp;nh-\u0026gt;rwsem) \u0026lt;-- waiting rwsem\n --\u0026gt; __down_write_common()\n --\u0026gt; rwsem_down_write_slowpath()\n --\u0026gt; schedule_preempt_disabled()\n --\u0026gt; schedule()\r\n\r\n[use]\nst54spi_gpio_dev_release()\n --\u0026gt; gpio_free()\n --\u0026gt; gpiod_free()\n --\u0026gt; gpiod_free_commit()\n --\u0026gt; gpiod_line_state_notify()\n --\u0026gt; blocking_notifier_call_chain()\n --\u0026gt; down_read(\u0026amp;nh-\u0026gt;rwsem); \u0026lt;-- held rwsem\n --\u0026gt; notifier_call_chain()\n --\u0026gt; lineinfo_changed_notify()\n --\u0026gt; test_bit(xxxx, cdev-\u0026gt;watched_lines) \u0026lt;-- use after free\r\n\r\nThe side effect of the use-after-free issue is that a GPIO line event is\nbeing generated for userspace where it shouldn\u0026apos;t. However, since the chrdev\nis being closed, userspace won\u0026apos;t have the chance to read that event anyway.\r\n\r\nTo fix the issue, call the bitmap_free() function after the unregistration\nof lineinfo_changed_nb notifier chain.(CVE-2024-36899)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nipv6: prevent NULL dereference in ip6_output()\r\n\r\nAccording to syzbot, there is a chance that ip6_dst_idev()\nreturns NULL in ip6_output(). Most places in IPv6 stack\ndeal with a NULL idev just fine, but not here.\r\n\r\nsyzbot reported:\r\n\r\ngeneral protection fault, probably for non-canonical address 0xdffffc00000000bc: 0000 [#1] PREEMPT SMP KASAN PTI\nKASAN: null-ptr-deref in range [0x00000000000005e0-0x00000000000005e7]\nCPU: 0 PID: 9775 Comm: syz-executor.4 Not tainted 6.9.0-rc5-syzkaller-00157-g6a30653b604a #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024\n RIP: 0010:ip6_output+0x231/0x3f0 net/ipv6/ip6_output.c:237\nCode: 3c 1e 00 49 89 df 74 08 4c 89 ef e8 19 58 db f7 48 8b 44 24 20 49 89 45 00 49 89 c5 48 8d 9d e0 05 00 00 48 89 d8 48 c1 e8 03 \u0026lt;42\u0026gt; 0f b6 04 38 84 c0 4c 8b 74 24 28 0f 85 61 01 00 00 8b 1b 31 ff\nRSP: 0018:ffffc9000927f0d8 EFLAGS: 00010202\nRAX: 00000000000000bc RBX: 00000000000005e0 RCX: 0000000000040000\nRDX: ffffc900131f9000 RSI: 0000000000004f47 RDI: 0000000000004f48\nRBP: 0000000000000000 R08: ffffffff8a1f0b9a R09: 1ffffffff1f51fad\nR10: dffffc0000000000 R11: fffffbfff1f51fae R12: ffff8880293ec8c0\nR13: ffff88805d7fc000 R14: 1ffff1100527d91a R15: dffffc0000000000\nFS: 00007f135c6856c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000000020000080 CR3: 0000000064096000 CR4: 00000000003506f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n \u0026lt;TASK\u0026gt;\n NF_HOOK include/linux/netfilter.h:314 [inline]\n ip6_xmit+0xefe/0x17f0 net/ipv6/ip6_output.c:358\n sctp_v6_xmit+0x9f2/0x13f0 net/sctp/ipv6.c:248\n sctp_packet_transmit+0x26ad/0x2ca0 net/sctp/output.c:653\n sctp_packet_singleton+0x22c/0x320 net/sctp/outqueue.c:783\n sctp_outq_flush_ctrl net/sctp/outqueue.c:914 [inline]\n sctp_outq_flush+0x6d5/0x3e20 net/sctp/outqueue.c:1212\n sctp_side_effects net/sctp/sm_sideeffect.c:1198 [inline]\n sctp_do_sm+0x59cc/0x60c0 net/sctp/sm_sideeffect.c:1169\n sctp_primitive_ASSOCIATE+0x95/0xc0 net/sctp/primitive.c:73\n __sctp_connect+0x9cd/0xe30 net/sctp/socket.c:1234\n sctp_connect net/sctp/socket.c:4819 [inline]\n sctp_inet_connect+0x149/0x1f0 net/sctp/socket.c:4834\n __sys_connect_file net/socket.c:2048 [inline]\n __sys_connect+0x2df/0x310 net/socket.c:2065\n __do_sys_connect net/socket.c:2075 [inline]\n __se_sys_connect net/socket.c:2072 [inline]\n __x64_sys_connect+0x7a/0x90 net/socket.c:2072\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f(CVE-2024-36901)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nipv6: fib6_rules: avoid possible NULL dereference in fib6_rule_action()\r\n\r\nsyzbot is able to trigger the following crash [1],\ncaused by unsafe ip6_dst_idev() use.\r\n\r\nIndeed ip6_dst_idev() can return NULL, and must always be checked.\r\n\r\n[1]\r\n\r\nOops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI\nKASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\nCPU: 0 PID: 31648 Comm: syz-executor.0 Not tainted 6.9.0-rc4-next-20240417-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024\n RIP: 0010:__fib6_rule_action net/ipv6/fib6_rules.c:237 [inline]\n RIP: 0010:fib6_rule_action+0x241/0x7b0 net/ipv6/fib6_rules.c:267\nCode: 02 00 00 49 8d 9f d8 00 00 00 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 f9 32 bf f7 48 8b 1b 48 89 d8 48 c1 e8 03 \u0026lt;42\u0026gt; 80 3c 20 00 74 08 48 89 df e8 e0 32 bf f7 4c 8b 03 48 89 ef 4c\nRSP: 0018:ffffc9000fc1f2f0 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: 0000000000000000 RCX: 1a772f98c8186700\nRDX: 0000000000000003 RSI: ffffffff8bcac4e0 RDI: ffffffff8c1f9760\nRBP: ffff8880673fb980 R08: ffffffff8fac15ef R09: 1ffffffff1f582bd\nR10: dffffc0000000000 R11: fffffbfff1f582be R12: dffffc0000000000\nR13: 0000000000000080 R14: ffff888076509000 R15: ffff88807a029a00\nFS: 00007f55e82ca6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000001b31d23000 CR3: 0000000022b66000 CR4: 00000000003506f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n \u0026lt;TASK\u0026gt;\n fib_rules_lookup+0x62c/0xdb0 net/core/fib_rules.c:317\n fib6_rule_lookup+0x1fd/0x790 net/ipv6/fib6_rules.c:108\n ip6_route_output_flags_noref net/ipv6/route.c:2637 [inline]\n ip6_route_output_flags+0x38e/0x610 net/ipv6/route.c:2649\n ip6_route_output include/net/ip6_route.h:93 [inline]\n ip6_dst_lookup_tail+0x189/0x11a0 net/ipv6/ip6_output.c:1120\n ip6_dst_lookup_flow+0xb9/0x180 net/ipv6/ip6_output.c:1250\n sctp_v6_get_dst+0x792/0x1e20 net/sctp/ipv6.c:326\n sctp_transport_route+0x12c/0x2e0 net/sctp/transport.c:455\n sctp_assoc_add_peer+0x614/0x15c0 net/sctp/associola.c:662\n sctp_connect_new_asoc+0x31d/0x6c0 net/sctp/socket.c:1099\n __sctp_connect+0x66d/0xe30 net/sctp/socket.c:1197\n sctp_connect net/sctp/socket.c:4819 [inline]\n sctp_inet_connect+0x149/0x1f0 net/sctp/socket.c:4834\n __sys_connect_file net/socket.c:2048 [inline]\n __sys_connect+0x2df/0x310 net/socket.c:2065\n __do_sys_connect net/socket.c:2075 [inline]\n __se_sys_connect net/socket.c:2072 [inline]\n __x64_sys_connect+0x7a/0x90 net/socket.c:2072\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f(CVE-2024-36902)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ntcp: defer shutdown(SEND_SHUTDOWN) for TCP_SYN_RECV sockets\r\n\r\nTCP_SYN_RECV state is really special, it is only used by\ncross-syn connections, mostly used by fuzzers.\r\n\r\nIn the following crash [1], syzbot managed to trigger a divide\nby zero in tcp_rcv_space_adjust()\r\n\r\nA socket makes the following state transitions,\nwithout ever calling tcp_init_transfer(),\nmeaning tcp_init_buffer_space() is also not called.\r\n\r\n TCP_CLOSE\nconnect()\n TCP_SYN_SENT\n TCP_SYN_RECV\nshutdown() -\u0026gt; tcp_shutdown(sk, SEND_SHUTDOWN)\n TCP_FIN_WAIT1\r\n\r\nTo fix this issue, change tcp_shutdown() to not\nperform a TCP_SYN_RECV -\u0026gt; TCP_FIN_WAIT1 transition,\nwhich makes no sense anyway.\r\n\r\nWhen tcp_rcv_state_process() later changes socket state\nfrom TCP_SYN_RECV to TCP_ESTABLISH, then look at\nsk-\u0026gt;sk_shutdown to finally enter TCP_FIN_WAIT1 state,\nand send a FIN packet from a sane socket state.\r\n\r\nThis means tcp_send_fin() can now be called from BH\ncontext, and must use GFP_ATOMIC allocations.\r\n\r\n[1]\ndivide error: 0000 [#1] PREEMPT SMP KASAN NOPTI\nCPU: 1 PID: 5084 Comm: syz-executor358 Not tainted 6.9.0-rc6-syzkaller-00022-g98369dccd2f8 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024\n RIP: 0010:tcp_rcv_space_adjust+0x2df/0x890 net/ipv4/tcp_input.c:767\nCode: e3 04 4c 01 eb 48 8b 44 24 38 0f b6 04 10 84 c0 49 89 d5 0f 85 a5 03 00 00 41 8b 8e c8 09 00 00 89 e8 29 c8 48 0f af c3 31 d2 \u0026lt;48\u0026gt; f7 f1 48 8d 1c 43 49 8d 96 76 08 00 00 48 89 d0 48 c1 e8 03 48\nRSP: 0018:ffffc900031ef3f0 EFLAGS: 00010246\nRAX: 0c677a10441f8f42 RBX: 000000004fb95e7e RCX: 0000000000000000\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000\nRBP: 0000000027d4b11f R08: ffffffff89e535a4 R09: 1ffffffff25e6ab7\nR10: dffffc0000000000 R11: ffffffff8135e920 R12: ffff88802a9f8d30\nR13: dffffc0000000000 R14: ffff88802a9f8d00 R15: 1ffff1100553f2da\nFS: 00005555775c0380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007f1155bf2304 CR3: 000000002b9f2000 CR4: 0000000000350ef0\nCall Trace:\n \u0026lt;TASK\u0026gt;\n tcp_recvmsg_locked+0x106d/0x25a0 net/ipv4/tcp.c:2513\n tcp_recvmsg+0x25d/0x920 net/ipv4/tcp.c:2578\n inet6_recvmsg+0x16a/0x730 net/ipv6/af_inet6.c:680\n sock_recvmsg_nosec net/socket.c:1046 [inline]\n sock_recvmsg+0x109/0x280 net/socket.c:1068\n ____sys_recvmsg+0x1db/0x470 net/socket.c:2803\n ___sys_recvmsg net/socket.c:2845 [inline]\n do_recvmmsg+0x474/0xae0 net/socket.c:2939\n __sys_recvmmsg net/socket.c:3018 [inline]\n __do_sys_recvmmsg net/socket.c:3041 [inline]\n __se_sys_recvmmsg net/socket.c:3034 [inline]\n __x64_sys_recvmmsg+0x199/0x250 net/socket.c:3034\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7faeb6363db9\nCode: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u0026lt;48\u0026gt; 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007ffcc1997168 EFLAGS: 00000246 ORIG_RAX: 000000000000012b\nRAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007faeb6363db9\nRDX: 0000000000000001 RSI: 0000000020000bc0 RDI: 0000000000000005\nRBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000001c\nR10: 0000000000000122 R11: 0000000000000246 R12: 0000000000000000\nR13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001(CVE-2024-36905)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nARM: 9381/1: kasan: clear stale stack poison\r\n\r\nWe found below OOB crash:\r\n\r\n[ 33.452494] ==================================================================\n[ 33.453513] BUG: KASAN: stack-out-of-bounds in refresh_cpu_vm_stats.constprop.0+0xcc/0x2ec\n[ 33.454660] Write of size 164 at addr c1d03d30 by task swapper/0/0\n[ 33.455515]\n[ 33.455767] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 6.1.25-mainline #1\n[ 33.456880] Hardware name: Generic DT based system\n[ 33.457555] unwind_backtrace from show_stack+0x18/0x1c\n[ 33.458326] show_stack from dump_stack_lvl+0x40/0x4c\n[ 33.459072] dump_stack_lvl from print_report+0x158/0x4a4\n[ 33.459863] print_report from kasan_report+0x9c/0x148\n[ 33.460616] kasan_report from kasan_check_range+0x94/0x1a0\n[ 33.461424] kasan_check_range from memset+0x20/0x3c\n[ 33.462157] memset from refresh_cpu_vm_stats.constprop.0+0xcc/0x2ec\n[ 33.463064] refresh_cpu_vm_stats.constprop.0 from tick_nohz_idle_stop_tick+0x180/0x53c\n[ 33.464181] tick_nohz_idle_stop_tick from do_idle+0x264/0x354\n[ 33.465029] do_idle from cpu_startup_entry+0x20/0x24\n[ 33.465769] cpu_startup_entry from rest_init+0xf0/0xf4\n[ 33.466528] rest_init from arch_post_acpi_subsys_init+0x0/0x18\n[ 33.467397]\n[ 33.467644] The buggy address belongs to stack of task swapper/0/0\n[ 33.468493] and is located at offset 112 in frame:\n[ 33.469172] refresh_cpu_vm_stats.constprop.0+0x0/0x2ec\n[ 33.469917]\n[ 33.470165] This frame has 2 objects:\n[ 33.470696] [32, 76) \u0026apos;global_zone_diff\u0026apos;\n[ 33.470729] [112, 276) \u0026apos;global_node_diff\u0026apos;\n[ 33.471294]\n[ 33.472095] The buggy address belongs to the physical page:\n[ 33.472862] page:3cd72da8 refcount:1 mapcount:0 mapping:00000000 index:0x0 pfn:0x41d03\n[ 33.473944] flags: 0x1000(reserved|zone=0)\n[ 33.474565] raw: 00001000 ed741470 ed741470 00000000 00000000 00000000 ffffffff 00000001\n[ 33.475656] raw: 00000000\n[ 33.476050] page dumped because: kasan: bad access detected\n[ 33.476816]\n[ 33.477061] Memory state around the buggy address:\n[ 33.477732] c1d03c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n[ 33.478630] c1d03c80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 00 00\n[ 33.479526] \u0026gt;c1d03d00: 00 04 f2 f2 f2 f2 00 00 00 00 00 00 f1 f1 f1 f1\n[ 33.480415] ^\n[ 33.481195] c1d03d80: 00 00 00 00 00 00 00 00 00 00 04 f3 f3 f3 f3 f3\n[ 33.482088] c1d03e00: f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00\n[ 33.482978] ==================================================================\r\n\r\nWe find the root cause of this OOB is that arm does not clear stale stack\npoison in the case of cpuidle.\r\n\r\nThis patch refer to arch/arm64/kernel/sleep.S to resolve this issue.\r\n\r\nFrom cited commit [1] that explain the problem\r\n\r\nFunctions which the compiler has instrumented for KASAN place poison on\nthe stack shadow upon entry and remove this poison prior to returning.\r\n\r\nIn the case of cpuidle, CPUs exit the kernel a number of levels deep in\nC code. Any instrumented functions on this critical path will leave\nportions of the stack shadow poisoned.\r\n\r\nIf CPUs lose context and return to the kernel via a cold path, we\nrestore a prior context saved in __cpu_suspend_enter are forgotten, and\nwe never remove the poison they placed in the stack shadow area by\nfunctions calls between this and the actual exit of the kernel.\r\n\r\nThus, (depending on stackframe layout) subsequent calls to instrumented\nfunctions may hit this stale poison, resulting in (spurious) KASAN\nsplats to the console.\r\n\r\nTo avoid this, clear any stale poison from the idle thread for a CPU\nprior to bringing a CPU online.\r\n\r\nFrom cited commit [2]\r\n\r\nExtend to check for CONFIG_KASAN_STACK\r\n\r\n[1] commit 0d97e6d8024c (\u0026quot;arm64: kasan: clear stale stack poison\u0026quot;)\n[2] commit d56a9ef84bd0 (\u0026quot;kasan, arm64: unpoison stack only with CONFIG_KASAN_STACK\u0026quot;)(CVE-2024-36906)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nblk-iocost: do not WARN if iocg was already offlined\r\n\r\nIn iocg_pay_debt(), warn is triggered if \u0026apos;active_list\u0026apos; is empty, which\nis intended to confirm iocg is active when it has debt. However, warn\ncan be triggered during a blkcg or disk removal, if iocg_waitq_timer_fn()\nis run at that time:\r\n\r\n WARNING: CPU: 0 PID: 2344971 at block/blk-iocost.c:1402 iocg_pay_debt+0x14c/0x190\n Call trace:\n iocg_pay_debt+0x14c/0x190\n iocg_kick_waitq+0x438/0x4c0\n iocg_waitq_timer_fn+0xd8/0x130\n __run_hrtimer+0x144/0x45c\n __hrtimer_run_queues+0x16c/0x244\n hrtimer_interrupt+0x2cc/0x7b0\r\n\r\nThe warn in this situation is meaningless. Since this iocg is being\nremoved, the state of the \u0026apos;active_list\u0026apos; is irrelevant, and \u0026apos;waitq_timer\u0026apos;\nis canceled after removing \u0026apos;active_list\u0026apos; in ioc_pd_free(), which ensures\niocg is freed after iocg_waitq_timer_fn() returns.\r\n\r\nTherefore, add the check if iocg was already offlined to avoid warn\nwhen removing a blkcg or disk.(CVE-2024-36908)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nscsi: lpfc: Release hbalock before calling lpfc_worker_wake_up()\r\n\r\nlpfc_worker_wake_up() calls the lpfc_work_done() routine, which takes the\nhbalock. Thus, lpfc_worker_wake_up() should not be called while holding the\nhbalock to avoid potential deadlock.(CVE-2024-36924)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nnet: core: reject skb_copy(_expand) for fraglist GSO skbs\r\n\r\nSKB_GSO_FRAGLIST skbs must not be linearized, otherwise they become\ninvalid. Return NULL if such an skb is passed to skb_copy or\nskb_copy_expand, in order to prevent a crash on a potential later\ncall to skb_gso_segment.(CVE-2024-36929)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\namd/amdkfd: sync all devices to wait all processes being evicted\r\n\r\nIf there are more than one device doing reset in parallel, the first\ndevice will call kfd_suspend_all_processes() to evict all processes\non all devices, this call takes time to finish. other device will\nstart reset and recover without waiting. if the process has not been\nevicted before doing recover, it will be restored, then caused page\nfault.(CVE-2024-36949)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nocteontx2-af: avoid off-by-one read from userspace\r\n\r\nWe try to access count + 1 byte from userspace with memdup_user(buffer,\ncount + 1). However, the userspace only provides buffer of count bytes and\nonly these count bytes are verified to be okay to access. To ensure the\ncopied buffer is NUL terminated, we use memdup_user_nul instead.(CVE-2024-36957)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nfs/9p: only translate RWX permissions for plain 9P2000\r\n\r\nGarbage in plain 9P2000\u0026apos;s perm bits is allowed through, which causes it\nto be able to set (among others) the suid bit. This was presumably not\nthe intent since the unix extended bits are handled explicitly and\nconditionally on .u.(CVE-2024-36964)",
"id": "OESA-2024-1706",
"modified": "2026-08-06T11:07:10Z",
"published": "2024-06-14T11:07:10Z",
"references": [
{
"type": "ADVISORY",
"url": "https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2024-1706"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47247"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47265"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47356"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47558"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48652"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52646"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52677"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52680"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52686"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52702"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52705"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52745"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52746"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52753"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52775"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52796"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52798"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52799"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52800"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52803"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52807"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52865"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52875"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27393"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27399"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27402"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27415"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35790"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35809"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35853"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35854"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35855"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35886"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35888"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35895"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35896"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35905"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35915"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35924"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35925"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35967"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35973"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36008"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36017"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36021"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36029"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36883"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36886"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36889"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36898"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36899"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36901"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36902"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36905"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36906"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36908"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36924"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36929"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36949"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36957"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36964"
}
],
"schema_version": "1.7.2",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:N",
"type": "CVSS_V3"
}
],
"summary": "kernel security update",
"upstream": [
"CVE-2021-47247",
"CVE-2021-47265",
"CVE-2021-47356",
"CVE-2021-47558",
"CVE-2022-48652",
"CVE-2023-52646",
"CVE-2023-52677",
"CVE-2023-52680",
"CVE-2023-52686",
"CVE-2023-52702",
"CVE-2023-52705",
"CVE-2023-52745",
"CVE-2023-52746",
"CVE-2023-52753",
"CVE-2023-52775",
"CVE-2023-52796",
"CVE-2023-52798",
"CVE-2023-52799",
"CVE-2023-52800",
"CVE-2023-52803",
"CVE-2023-52807",
"CVE-2023-52865",
"CVE-2023-52875",
"CVE-2024-27393",
"CVE-2024-27399",
"CVE-2024-27402",
"CVE-2024-27415",
"CVE-2024-35790",
"CVE-2024-35809",
"CVE-2024-35853",
"CVE-2024-35854",
"CVE-2024-35855",
"CVE-2024-35886",
"CVE-2024-35888",
"CVE-2024-35895",
"CVE-2024-35896",
"CVE-2024-35905",
"CVE-2024-35915",
"CVE-2024-35924",
"CVE-2024-35925",
"CVE-2024-35967",
"CVE-2024-35973",
"CVE-2024-36008",
"CVE-2024-36017",
"CVE-2024-36021",
"CVE-2024-36029",
"CVE-2024-36883",
"CVE-2024-36886",
"CVE-2024-36889",
"CVE-2024-36898",
"CVE-2024-36899",
"CVE-2024-36901",
"CVE-2024-36902",
"CVE-2024-36905",
"CVE-2024-36906",
"CVE-2024-36908",
"CVE-2024-36924",
"CVE-2024-36929",
"CVE-2024-36949",
"CVE-2024-36957",
"CVE-2024-36964"
]
}
OESA-2024-1707 (CVE-2021-47247)
Vulnerability from osv_openeuler – Published: 2024-06-14 11:07 – Updated: 2026-08-06 11:07 – Source websiteThe Linux Kernel, the operating system core itself.
Security Fix(es):
In the Linux kernel, the following vulnerability has been resolved:
net/mlx5e: Fix use-after-free of encap entry in neigh update handler
Function mlx5e_rep_neigh_update() wasn't updated to accommodate rtnl lock removal from TC filter update path and properly handle concurrent encap entry insertion/deletion which can lead to following use-after-free:
[23827.464923] ================================================================== [23827.469446] BUG: KASAN: use-after-free in mlx5e_encap_take+0x72/0x140 [mlx5_core] [23827.470971] Read of size 4 at addr ffff8881d132228c by task kworker/u20:6/21635 [23827.472251] [23827.472615] CPU: 9 PID: 21635 Comm: kworker/u20:6 Not tainted 5.13.0-rc3+ #5 [23827.473788] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 [23827.475639] Workqueue: mlx5e mlx5e_rep_neigh_update [mlx5_core] [23827.476731] Call Trace: [23827.477260] dump_stack+0xbb/0x107 [23827.477906] print_address_description.constprop.0+0x18/0x140 [23827.478896] ? mlx5e_encap_take+0x72/0x140 [mlx5_core] [23827.479879] ? mlx5e_encap_take+0x72/0x140 [mlx5_core] [23827.480905] kasan_report.cold+0x7c/0xd8 [23827.481701] ? mlx5e_encap_take+0x72/0x140 [mlx5_core] [23827.482744] kasan_check_range+0x145/0x1a0 [23827.493112] mlx5e_encap_take+0x72/0x140 [mlx5_core] [23827.494054] ? mlx5e_tc_tun_encap_info_equal_generic+0x140/0x140 [mlx5_core] [23827.495296] mlx5e_rep_neigh_update+0x41e/0x5e0 [mlx5_core] [23827.496338] ? mlx5e_rep_neigh_entry_release+0xb80/0xb80 [mlx5_core] [23827.497486] ? read_word_at_a_time+0xe/0x20 [23827.498250] ? strscpy+0xa0/0x2a0 [23827.498889] process_one_work+0x8ac/0x14e0 [23827.499638] ? lockdep_hardirqs_on_prepare+0x400/0x400 [23827.500537] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [23827.501359] ? rwlock_bug.part.0+0x90/0x90 [23827.502116] worker_thread+0x53b/0x1220 [23827.502831] ? process_one_work+0x14e0/0x14e0 [23827.503627] kthread+0x328/0x3f0 [23827.504254] ? _raw_spin_unlock_irq+0x24/0x40 [23827.505065] ? __kthread_bind_mask+0x90/0x90 [23827.505912] ret_from_fork+0x1f/0x30 [23827.506621] [23827.506987] Allocated by task 28248: [23827.507694] kasan_save_stack+0x1b/0x40 [23827.508476] __kasan_kmalloc+0x7c/0x90 [23827.509197] mlx5e_attach_encap+0xde1/0x1d40 [mlx5_core] [23827.510194] mlx5e_tc_add_fdb_flow+0x397/0xc40 [mlx5_core] [23827.511218] __mlx5e_add_fdb_flow+0x519/0xb30 [mlx5_core] [23827.512234] mlx5e_configure_flower+0x191c/0x4870 [mlx5_core] [23827.513298] tc_setup_cb_add+0x1d5/0x420 [23827.514023] fl_hw_replace_filter+0x382/0x6a0 [cls_flower] [23827.514975] fl_change+0x2ceb/0x4a51 [cls_flower] [23827.515821] tc_new_tfilter+0x89a/0x2070 [23827.516548] rtnetlink_rcv_msg+0x644/0x8c0 [23827.517300] netlink_rcv_skb+0x11d/0x340 [23827.518021] netlink_unicast+0x42b/0x700 [23827.518742] netlink_sendmsg+0x743/0xc20 [23827.519467] sock_sendmsg+0xb2/0xe0 [23827.520131] _syssendmsg+0x590/0x770 [23827.520851] _sys_sendmsg+0xd8/0x160 [23827.521552] __sys_sendmsg+0xb7/0x140 [23827.522238] do_syscall_64+0x3a/0x70 [23827.522907] entry_SYSCALL_64_after_hwframe+0x44/0xae [23827.523797] [23827.524163] Freed by task 25948: [23827.524780] kasan_save_stack+0x1b/0x40 [23827.525488] kasan_set_track+0x1c/0x30 [23827.526187] kasan_set_free_info+0x20/0x30 [23827.526968] __kasan_slab_free+0xed/0x130 [23827.527709] slab_free_freelist_hook+0xcf/0x1d0 [23827.528528] kmem_cache_free_bulk+0x33a/0x6e0 [23827.529317] kfree_rcu_work+0x55f/0xb70 [23827.530024] process_one_work+0x8ac/0x14e0 [23827.530770] worker_thread+0x53b/0x1220 [23827.531480] kthread+0x328/0x3f0 [23827.532114] ret_from_fork+0x1f/0x30 [23827.532785] [23827.533147] Last potentially related work creation: [23827.534007] kasan_save_stack+0x1b/0x40 [23827.534710] kasan_record_aux_stack+0xab/0xc0 [23827.535492] kvfree_call_rcu+0x31/0x7b0 [23827.536206] mlx5e_tc_del ---truncated---(CVE-2021-47247)
In the Linux kernel, the following vulnerability has been resolved:
octeontx2-af: Fix possible null pointer dereference.
This patch fixes possible null pointer dereference in files "rvu_debugfs.c" and "rvu_nix.c"(CVE-2021-47484)
In the Linux kernel, the following vulnerability has been resolved:
net: stmmac: Disable Tx queues when reconfiguring the interface
The Tx queues were not disabled in situations where the driver needed to stop the interface to apply a new configuration. This could result in a kernel panic when doing any of the 3 following actions: * reconfiguring the number of queues (ethtool -L) * reconfiguring the size of the ring buffers (ethtool -G) * installing/removing an XDP program (ip l set dev ethX xdp)
Prevent the panic by making sure netif_tx_disable is called when stopping an interface.
Without this patch, the following kernel panic can be observed when doing any of the actions above:
Unable to handle kernel paging request at virtual address ffff80001238d040 [....] Call trace: dwmac4_set_addr+0x8/0x10 dev_hard_start_xmit+0xe4/0x1ac sch_direct_xmit+0xe8/0x39c __dev_queue_xmit+0x3ec/0xaf0 dev_queue_xmit+0x14/0x20 [...] [ end trace 0000000000000002 ]---(CVE-2021-47558)
In the Linux kernel, the following vulnerability has been resolved:
ice: Fix crash by keep old cfg when update TCs more than queues
There are problems if allocated queues less than Traffic Classes.
Commit a632b2a4c920 ("ice: ethtool: Prohibit improper channel config for DCB") already disallow setting less queues than TCs.
Another case is if we first set less queues, and later update more TCs config due to LLDP, ice_vsi_cfg_tc() will failed but left dirty num_txq/rxq and tc_cfg in vsi, that will cause invalid pointer access.
[ 95.968089] ice 0000:3b:00.1: More TCs defined than queues/rings allocated. [ 95.968092] ice 0000:3b:00.1: Trying to use more Rx queues (8), than were allocated (1)! [ 95.968093] ice 0000:3b:00.1: Failed to config TC for VSI index: 0 [ 95.969621] general protection fault: 0000 [#1] SMP NOPTI [ 95.969705] CPU: 1 PID: 58405 Comm: lldpad Kdump: loaded Tainted: G U W O --------- -t - 4.18.0 #1 [ 95.969867] Hardware name: O.E.M/BC11SPSCB10, BIOS 8.23 12/30/2021 [ 95.969992] RIP: 0010:devm_kmalloc+0xa/0x60 [ 95.970052] Code: 5c ff ff ff 31 c0 5b 5d 41 5c c3 b8 f4 ff ff ff eb f4 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 89 d1 <8b> 97 60 02 00 00 48 8d 7e 18 48 39 f7 72 3f 55 89 ce 53 48 8b 4c [ 95.970344] RSP: 0018:ffffc9003f553888 EFLAGS: 00010206 [ 95.970425] RAX: dead000000000200 RBX: ffffea003c425b00 RCX: 00000000006080c0 [ 95.970536] RDX: 00000000006080c0 RSI: 0000000000000200 RDI: dead000000000200 [ 95.970648] RBP: dead000000000200 R08: 00000000000463c0 R09: ffff888ffa900000 [ 95.970760] R10: 0000000000000000 R11: 0000000000000002 R12: ffff888ff6b40100 [ 95.970870] R13: ffff888ff6a55018 R14: 0000000000000000 R15: ffff888ff6a55460 [ 95.970981] FS: 00007f51b7d24700(0000) GS:ffff88903ee80000(0000) knlGS:0000000000000000 [ 95.971108] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 95.971197] CR2: 00007fac5410d710 CR3: 0000000f2c1de002 CR4: 00000000007606e0 [ 95.971309] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 95.971419] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 95.971530] PKRU: 55555554 [ 95.971573] Call Trace: [ 95.971622] ice_setup_rx_ring+0x39/0x110 [ice] [ 95.971695] ice_vsi_setup_rx_rings+0x54/0x90 [ice] [ 95.971774] ice_vsi_open+0x25/0x120 [ice] [ 95.971843] ice_open_internal+0xb8/0x1f0 [ice] [ 95.971919] ice_ena_vsi+0x4f/0xd0 [ice] [ 95.971987] ice_dcb_ena_dis_vsi.constprop.5+0x29/0x90 [ice] [ 95.972082] ice_pf_dcb_cfg+0x29a/0x380 [ice] [ 95.972154] ice_dcbnl_setets+0x174/0x1b0 [ice] [ 95.972220] dcbnl_ieee_set+0x89/0x230 [ 95.972279] ? dcbnl_ieee_del+0x150/0x150 [ 95.972341] dcb_doit+0x124/0x1b0 [ 95.972392] rtnetlink_rcv_msg+0x243/0x2f0 [ 95.972457] ? dcb_doit+0x14d/0x1b0 [ 95.972510] ? __kmalloc_node_track_caller+0x1d3/0x280 [ 95.972591] ? rtnl_calcit.isra.31+0x100/0x100 [ 95.972661] netlink_rcv_skb+0xcf/0xf0 [ 95.972720] netlink_unicast+0x16d/0x220 [ 95.972781] netlink_sendmsg+0x2ba/0x3a0 [ 95.975891] sock_sendmsg+0x4c/0x50 [ 95.979032] syssendmsg+0x2e4/0x300 [ 95.982147] ? kmem_cache_alloc+0x13e/0x190 [ 95.985242] ? wake_up_common_lock+0x79/0x90 [ 95.988338] ? __check_object_size+0xac/0x1b0 [ 95.991440] ? _copy_to_user+0x22/0x30 [ 95.994539] ? move_addr_to_user+0xbb/0xd0 [ 95.997619] ? __sys_sendmsg+0x53/0x80 [ 96.000664] __sys_sendmsg+0x53/0x80 [ 96.003747] do_syscall_64+0x5b/0x1d0 [ 96.006862] entry_SYSCALL_64_after_hwframe+0x65/0xca
Only update num_txq/rxq when passed check, and restore tc_cfg if setup queue map failed.(CVE-2022-48652)
In the Linux kernel, the following vulnerability has been resolved:
pipe: wakeup wr_wait after setting max_usage
Commit c73be61cede5 ("pipe: Add general notification queue support") a regression was introduced that would lock up resized pipes under certain conditions. See the reproducer in [1].
The commit resizing the pipe ring size was moved to a different function, doing that moved the wakeup for pipe->wr_wait before actually raising pipe->max_usage. If a pipe was full before the resize occured it would result in the wakeup never actually triggering pipe_write.
Set @max_usage and @nr_accounted before waking writers if this isn't a watch queue.
Christian Brauner <brauner@kernel.org>: rewrite to account for watch queues
In the Linux kernel, the following vulnerability has been resolved:
ALSA: scarlett2: Add missing error checks to *_ctl_get()
The ctl_get() functions which call scarlett2_update() were not checking the return value. Fix to check the return value and pass to the caller.(CVE-2023-52680)
In the Linux kernel, the following vulnerability has been resolved:
powerpc/powernv: Add a null pointer check in opal_event_init()
kasprintf() returns a pointer to dynamically allocated memory which can be NULL upon failure.(CVE-2023-52686)
In the Linux kernel, the following vulnerability has been resolved:
ACPI: video: check for error while searching for backlight device parent
If acpi_get_parent() called in acpi_video_dev_register_backlight() fails, for example, because acpi_ut_acquire_mutex() fails inside acpi_get_parent), this can lead to incorrect (uninitialized) acpi_parent handle being passed to acpi_get_pci_dev() for detecting the parent pci device.
Check acpi_get_parent() result and set parent device only in case of success.
Found by Linux Verification Center (linuxtesting.org) with SVACE.(CVE-2023-52693)
In the Linux kernel, the following vulnerability has been resolved:
ceph: blocklist the kclient when receiving corrupted snap trace
When received corrupted snap trace we don't know what exactly has happened in MDS side. And we shouldn't continue IOs and metadatas access to MDS, which may corrupt or get incorrect contents.
This patch will just block all the further IO/MDS requests immediately and then evict the kclient itself.
The reason why we still need to evict the kclient just after blocking all the further IOs is that the MDS could revoke the caps faster.(CVE-2023-52732)
In the Linux kernel, the following vulnerability has been resolved:
virtio-blk: fix implicit overflow on virtio_max_dma_size
The following codes have an implicit conversion from size_t to u32: (u32)max_size = (size_t)virtio_max_dma_size(vdev);
This may lead overflow, Ex (size_t)4G -> (u32)0. Once virtio_max_dma_size() has a larger size than U32_MAX, use U32_MAX instead.(CVE-2023-52762)
In the Linux kernel, the following vulnerability has been resolved:
net/smc: avoid data corruption caused by decline
We found a data corruption issue during testing of SMC-R on Redis applications.
The benchmark has a low probability of reporting a strange error as shown below.
"Error: Protocol error, got "\xe2" as reply type byte"
Finally, we found that the retrieved error data was as follows:
0xE2 0xD4 0xC3 0xD9 0x04 0x00 0x2C 0x20 0xA6 0x56 0x00 0x16 0x3E 0x0C 0xCB 0x04 0x02 0x01 0x00 0x00 0x20 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0xE2
It is quite obvious that this is a SMC DECLINE message, which means that the applications received SMC protocol message. We found that this was caused by the following situations:
client server ¦ clc proposal -------------> ¦ clc accept <------------- ¦ clc confirm -------------> wait llc confirm send llc confirm ¦failed llc confirm ¦ x------ (after 2s)timeout wait llc confirm rsp
wait decline
(after 1s) timeout (after 2s) timeout ¦ decline --------------> ¦ decline <--------------
As a result, a decline message was sent in the implementation, and this message was read from TCP by the already-fallback connection.
This patch double the client timeout as 2x of the server value, With this simple change, the Decline messages should never cross or collide (during Confirm link timeout).
This issue requires an immediate solution, since the protocol updates involve a more long-term solution.(CVE-2023-52775)
In the Linux kernel, the following vulnerability has been resolved:
SUNRPC: Fix RPC client cleaned up the freed pipefs dentries
RPC client pipefs dentries cleanup is in separated rpc_remove_pipedir() workqueue,which takes care about pipefs superblock locking. In some special scenarios, when kernel frees the pipefs sb of the current client and immediately alloctes a new pipefs sb, rpc_remove_pipedir function would misjudge the existence of pipefs sb which is not the one it used to hold. As a result, the rpc_remove_pipedir would clean the released freed pipefs dentries.
To fix this issue, rpc_remove_pipedir should check whether the current pipefs sb is consistent with the original pipefs sb.
This error can be catched by KASAN:
[ 250.497700] BUG: KASAN: slab-use-after-free in dget_parent+0x195/0x200 [ 250.498315] Read of size 4 at addr ffff88800a2ab804 by task kworker/0:18/106503 [ 250.500549] Workqueue: events rpc_free_client_work [ 250.501001] Call Trace: [ 250.502880] kasan_report+0xb6/0xf0 [ 250.503209] ? dget_parent+0x195/0x200 [ 250.503561] dget_parent+0x195/0x200 [ 250.503897] ? __pfx_rpc_clntdir_depopulate+0x10/0x10 [ 250.504384] rpc_rmdir_depopulate+0x1b/0x90 [ 250.504781] rpc_remove_client_dir+0xf5/0x150 [ 250.505195] rpc_free_client_work+0xe4/0x230 [ 250.505598] process_one_work+0x8ee/0x13b0 ... [ 22.039056] Allocated by task 244: [ 22.039390] kasan_save_stack+0x22/0x50 [ 22.039758] kasan_set_track+0x25/0x30 [ 22.040109] __kasan_slab_alloc+0x59/0x70 [ 22.040487] kmem_cache_alloc_lru+0xf0/0x240 [ 22.040889] __d_alloc+0x31/0x8e0 [ 22.041207] d_alloc+0x44/0x1f0 [ 22.041514] __rpc_lookup_create_exclusive+0x11c/0x140 [ 22.041987] rpc_mkdir_populate.constprop.0+0x5f/0x110 [ 22.042459] rpc_create_client_dir+0x34/0x150 [ 22.042874] rpc_setup_pipedir_sb+0x102/0x1c0 [ 22.043284] rpc_client_register+0x136/0x4e0 [ 22.043689] rpc_new_client+0x911/0x1020 [ 22.044057] rpc_create_xprt+0xcb/0x370 [ 22.044417] rpc_create+0x36b/0x6c0 ... [ 22.049524] Freed by task 0: [ 22.049803] kasan_save_stack+0x22/0x50 [ 22.050165] kasan_set_track+0x25/0x30 [ 22.050520] kasan_save_free_info+0x2b/0x50 [ 22.050921] __kasan_slab_free+0x10e/0x1a0 [ 22.051306] kmem_cache_free+0xa5/0x390 [ 22.051667] rcu_core+0x62c/0x1930 [ 22.051995] __do_softirq+0x165/0x52a [ 22.052347] [ 22.052503] Last potentially related work creation: [ 22.052952] kasan_save_stack+0x22/0x50 [ 22.053313] __kasan_record_aux_stack+0x8e/0xa0 [ 22.053739] __call_rcu_common.constprop.0+0x6b/0x8b0 [ 22.054209] dentry_free+0xb2/0x140 [ 22.054540] __dentry_kill+0x3be/0x540 [ 22.054900] shrink_dentry_list+0x199/0x510 [ 22.055293] shrink_dcache_parent+0x190/0x240 [ 22.055703] do_one_tree+0x11/0x40 [ 22.056028] shrink_dcache_for_umount+0x61/0x140 [ 22.056461] generic_shutdown_super+0x70/0x590 [ 22.056879] kill_anon_super+0x3a/0x60 [ 22.057234] rpc_kill_sb+0x121/0x200(CVE-2023-52803)
In the Linux kernel, the following vulnerability has been resolved:
fs/jfs: Add check for negative db_l2nbperpage
l2nbperpage is log2(number of blks per page), and the minimum legal value should be 0, not negative.
In the case of l2nbperpage being negative, an error will occur when subsequently used as shift exponent.
Syzbot reported this bug:
UBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:799:12 shift exponent -16777216 is negative(CVE-2023-52810)
In the Linux kernel, the following vulnerability has been resolved:
tty: n_gsm: require CAP_NET_ADMIN to attach N_GSM0710 ldisc
Any unprivileged user can attach N_GSM0710 ldisc, but it requires CAP_NET_ADMIN to create a GSM network anyway.
Require initial namespace CAP_NET_ADMIN to do that.(CVE-2023-52880)
In the Linux kernel, the following vulnerability has been resolved:
tcp: do not accept ACK of bytes we never sent
This patch is based on a detailed report and ideas from Yepeng Pan and Christian Rossow.
ACK seq validation is currently following RFC 5961 5.2 guidelines:
The ACK value is considered acceptable only if it is in the range of ((SND.UNA - MAX.SND.WND) <= SEG.ACK <= SND.NXT). All incoming segments whose ACK value doesn't satisfy the above condition MUST be discarded and an ACK sent back. It needs to be noted that RFC 793 on page 72 (fifth check) says: "If the ACK is a duplicate (SEG.ACK < SND.UNA), it can be ignored. If the ACK acknowledges something not yet sent (SEG.ACK > SND.NXT) then send an ACK, drop the segment, and return". The "ignored" above implies that the processing of the incoming data segment continues, which means the ACK value is treated as acceptable. This mitigation makes the ACK check more stringent since any ACK < SND.UNA wouldn't be accepted, instead only ACKs that are in the range ((SND.UNA - MAX.SND.WND) <= SEG.ACK <= SND.NXT) get through.
This can be refined for new (and possibly spoofed) flows, by not accepting ACK for bytes that were never sent.
This greatly improves TCP security at a little cost.
I added a Fixes: tag to make sure this patch will reach stable trees, even if the 'blamed' patch was adhering to the RFC.
tp->bytes_acked was added in linux-4.2
Following packetdrill test (courtesy of Yepeng Pan) shows the issue at hand:
0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3 +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0 +0 bind(3, ..., ...) = 0 +0 listen(3, 1024) = 0
// ---------------- Handshake ------------------- //
// when window scale is set to 14 the window size can be extended to // 65535 * (2^14) = 1073725440. Linux would accept an ACK packet // with ack number in (Server_ISN+1-1073725440. Server_ISN+1) // ,though this ack number acknowledges some data never // sent by the server.
+0 < S 0:0(0) win 65535 <mss 1400,nop,wscale 14> +0 > S. 0:0(0) ack 1 <...> +0 < . 1:1(0) ack 1 win 65535 +0 accept(3, ..., ...) = 4
// For the established connection, we send an ACK packet, // the ack packet uses ack number 1 - 1073725300 + 2^32, // where 2^32 is used to wrap around. // Note: we used 1073725300 instead of 1073725440 to avoid possible // edge cases. // 1 - 1073725300 + 2^32 = 3221241997
// Oops, old kernels happily accept this packet. +0 < . 1:1001(1000) ack 3221241997 win 65535
// After the kernel fix the following will be replaced by a challenge ACK, // and prior malicious frame would be dropped. +0 > . 1:1(0) ack 1001(CVE-2023-52881)
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: set dormant flag on hook register failure
We need to set the dormant flag again if we fail to register the hooks.
During memory pressure hook registration can fail and we end up with a table marked as active but no registered hooks.
On table/base chain deletion, nf_tables will attempt to unregister the hook again which yields a warn splat from the nftables core.(CVE-2024-26835)
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: hci_core: Fix possible buffer overflow
struct hci_dev_info has a fixed size name[8] field so in the event that hdev->name is bigger than that strcpy would attempt to write past its size, so this fixes this problem by switching to use strscpy.(CVE-2024-26889)
In the Linux kernel, the following vulnerability has been resolved:
xen-netfront: Add missing skb_mark_for_recycle
Notice that skb_mark_for_recycle() is introduced later than fixes tag in commit 6a5bcd84e886 ("page_pool: Allow drivers to hint on SKB recycling").
It is believed that fixes tag were missing a call to page_pool_release_page() between v5.9 to v5.14, after which is should have used skb_mark_for_recycle(). Since v6.6 the call page_pool_release_page() were removed (in commit 535b9c61bdef ("net: page_pool: hide page_pool_release_page()") and remaining callers converted (in commit 6bfef2ec0172 ("Merge branch 'net-page_pool-remove-page_pool_release_page'")).
This leak became visible in v6.8 via commit dba1b8a7ab68 ("mm/page_pool: catch page_pool memory leaks").(CVE-2024-27393)
In the Linux kernel, the following vulnerability has been resolved:
phonet/pep: fix racy skb_queue_empty() use
The receive queues are protected by their respective spin-lock, not the socket lock. This could lead to skb_peek() unexpectedly returning NULL or a pointer to an already dequeued socket buffer.(CVE-2024-27402)
In the Linux kernel, the following vulnerability has been resolved:
dmaengine: dw-edma: eDMA: Add sync read before starting the DMA transfer in remote setup
The Linked list element and pointer are not stored in the same memory as the eDMA controller register. If the doorbell register is toggled before the full write of the linked list a race condition error will occur. In remote setup we can only use a readl to the memory to assure the full write has occurred.(CVE-2024-27408)
In the Linux kernel, the following vulnerability has been resolved:
usb: typec: altmodes/displayport: create sysfs nodes as driver's default device attribute group
The DisplayPort driver's sysfs nodes may be present to the userspace before typec_altmode_set_drvdata() completes in dp_altmode_probe. This means that a sysfs read can trigger a NULL pointer error by deferencing dp->hpd in hpd_show or dp->lock in pin_assignment_show, as dev_get_drvdata() returns NULL in those cases.
Remove manual sysfs node creation in favor of adding attribute group as default for devices bound to the driver. The ATTRIBUTE_GROUPS() macro is not used here otherwise the path to the sysfs nodes is no longer compliant with the ABI.(CVE-2024-35790)
In the Linux kernel, the following vulnerability has been resolved:
PCI/PM: Drain runtime-idle callbacks before driver removal
A race condition between the .runtime_idle() callback and the .remove() callback in the rtsx_pcr PCI driver leads to a kernel crash due to an unhandled page fault [1].
The problem is that rtsx_pci_runtime_idle() is not expected to be running after pm_runtime_get_sync() has been called, but the latter doesn't really guarantee that. It only guarantees that the suspend and resume callbacks will not be running when it returns.
However, if a .runtime_idle() callback is already running when pm_runtime_get_sync() is called, the latter will notice that the runtime PM status of the device is RPM_ACTIVE and it will return right away without waiting for the former to complete. In fact, it cannot wait for .runtime_idle() to complete because it may be called from that callback (it arguably does not make much sense to do that, but it is not strictly prohibited).
Thus in general, whoever is providing a .runtime_idle() callback needs to protect it from running in parallel with whatever code runs after pm_runtime_get_sync(). [Note that .runtime_idle() will not start after pm_runtime_get_sync() has returned, but it may continue running then if it has started earlier.]
One way to address that race condition is to call pm_runtime_barrier() after pm_runtime_get_sync() (not before it, because a nonzero value of the runtime PM usage counter is necessary to prevent runtime PM callbacks from being invoked) to wait for the .runtime_idle() callback to complete should it be running at that point. A suitable place for doing that is in pci_device_remove() which calls pm_runtime_get_sync() before removing the driver, so it may as well call pm_runtime_barrier() subsequently, which will prevent the race in question from occurring, not just in the rtsx_pcr driver, but in any PCI drivers providing .runtime_idle() callbacks.(CVE-2024-35809)
In the Linux kernel, the following vulnerability has been resolved:
wifi: brcmfmac: Fix use-after-free bug in brcmf_cfg80211_detach
This is the candidate patch of CVE-2023-47233 : https://nvd.nist.gov/vuln/detail/CVE-2023-47233
In brcm80211 driver,it starts with the following invoking chain to start init a timeout worker:
->brcmf_usb_probe ->brcmf_usb_probe_cb ->brcmf_attach ->brcmf_bus_started ->brcmf_cfg80211_attach ->wl_init_priv ->brcmf_init_escan ->INIT_WORK(&cfg->escan_timeout_work, brcmf_cfg80211_escan_timeout_worker);
If we disconnect the USB by hotplug, it will call brcmf_usb_disconnect to make cleanup. The invoking chain is :
brcmf_usb_disconnect ->brcmf_usb_disconnect_cb ->brcmf_detach ->brcmf_cfg80211_detach ->kfree(cfg);
While the timeout woker may still be running. This will cause a use-after-free bug on cfg in brcmf_cfg80211_escan_timeout_worker.
Fix it by deleting the timer and canceling the worker in brcmf_cfg80211_detach.
arend.vanspriel@broadcom.com: keep timer delete as is and cancel work just before free
In the Linux kernel, the following vulnerability has been resolved:
mlxsw: spectrum_acl_tcam: Fix memory leak during rehash
The rehash delayed work migrates filters from one region to another. This is done by iterating over all chunks (all the filters with the same priority) in the region and in each chunk iterating over all the filters.
If the migration fails, the code tries to migrate the filters back to the old region. However, the rollback itself can also fail in which case another migration will be erroneously performed. Besides the fact that this ping pong is not a very good idea, it also creates a problem.
Each virtual chunk references two chunks: The currently used one ('vchunk->chunk') and a backup ('vchunk->chunk2'). During migration the first holds the chunk we want to migrate filters to and the second holds the chunk we are migrating filters from.
The code currently assumes - but does not verify - that the backup chunk does not exist (NULL) if the currently used chunk does not reference the target region. This assumption breaks when we are trying to rollback a rollback, resulting in the backup chunk being overwritten and leaked [1].
Fix by not rolling back a failed rollback and add a warning to avoid future cases.
[1] WARNING: CPU: 5 PID: 1063 at lib/parman.c:291 parman_destroy+0x17/0x20 Modules linked in: CPU: 5 PID: 1063 Comm: kworker/5:11 Tainted: G W 6.9.0-rc2-custom-00784-gc6a05c468a0b #14 Hardware name: Mellanox Technologies Ltd. MSN3700/VMOD0005, BIOS 5.11 01/06/2019 Workqueue: mlxsw_core mlxsw_sp_acl_tcam_vregion_rehash_work RIP: 0010:parman_destroy+0x17/0x20 [...] Call Trace: <TASK> mlxsw_sp_acl_atcam_region_fini+0x19/0x60 mlxsw_sp_acl_tcam_region_destroy+0x49/0xf0 mlxsw_sp_acl_tcam_vregion_rehash_work+0x1f1/0x470 process_one_work+0x151/0x370 worker_thread+0x2cb/0x3e0 kthread+0xd0/0x100 ret_from_fork+0x34/0x50 ret_from_fork_asm+0x1a/0x30 </TASK>(CVE-2024-35853)
In the Linux kernel, the following vulnerability has been resolved:
mlxsw: spectrum_acl_tcam: Fix possible use-after-free during rehash
The rehash delayed work migrates filters from one region to another according to the number of available credits.
The migrated from region is destroyed at the end of the work if the number of credits is non-negative as the assumption is that this is indicative of migration being complete. This assumption is incorrect as a non-negative number of credits can also be the result of a failed migration.
The destruction of a region that still has filters referencing it can result in a use-after-free [1].
Fix by not destroying the region if migration failed.
[1] BUG: KASAN: slab-use-after-free in mlxsw_sp_acl_ctcam_region_entry_remove+0x21d/0x230 Read of size 8 at addr ffff8881735319e8 by task kworker/0:31/3858
CPU: 0 PID: 3858 Comm: kworker/0:31 Tainted: G W 6.9.0-rc2-custom-00782-gf2275c2157d8 #5 Hardware name: Mellanox Technologies Ltd. MSN3700/VMOD0005, BIOS 5.11 01/06/2019 Workqueue: mlxsw_core mlxsw_sp_acl_tcam_vregion_rehash_work Call Trace: <TASK> dump_stack_lvl+0xc6/0x120 print_report+0xce/0x670 kasan_report+0xd7/0x110 mlxsw_sp_acl_ctcam_region_entry_remove+0x21d/0x230 mlxsw_sp_acl_ctcam_entry_del+0x2e/0x70 mlxsw_sp_acl_atcam_entry_del+0x81/0x210 mlxsw_sp_acl_tcam_vchunk_migrate_all+0x3cd/0xb50 mlxsw_sp_acl_tcam_vregion_rehash_work+0x157/0x1300 process_one_work+0x8eb/0x19b0 worker_thread+0x6c9/0xf70 kthread+0x2c9/0x3b0 ret_from_fork+0x4d/0x80 ret_from_fork_asm+0x1a/0x30 </TASK>
Allocated by task 174: kasan_save_stack+0x33/0x60 kasan_save_track+0x14/0x30 __kasan_kmalloc+0x8f/0xa0 __kmalloc+0x19c/0x360 mlxsw_sp_acl_tcam_region_create+0xdf/0x9c0 mlxsw_sp_acl_tcam_vregion_rehash_work+0x954/0x1300 process_one_work+0x8eb/0x19b0 worker_thread+0x6c9/0xf70 kthread+0x2c9/0x3b0 ret_from_fork+0x4d/0x80 ret_from_fork_asm+0x1a/0x30
Freed by task 7: kasan_save_stack+0x33/0x60 kasan_save_track+0x14/0x30 kasan_save_free_info+0x3b/0x60 poison_slab_object+0x102/0x170 __kasan_slab_free+0x14/0x30 kfree+0xc1/0x290 mlxsw_sp_acl_tcam_region_destroy+0x272/0x310 mlxsw_sp_acl_tcam_vregion_rehash_work+0x731/0x1300 process_one_work+0x8eb/0x19b0 worker_thread+0x6c9/0xf70 kthread+0x2c9/0x3b0 ret_from_fork+0x4d/0x80 ret_from_fork_asm+0x1a/0x30(CVE-2024-35854)
In the Linux kernel, the following vulnerability has been resolved:
riscv: process: Fix kernel gp leakage
childregs represents the registers which are active for the new thread in user context. For a kernel thread, childregs->gp is never used since the kernel gp is not touched by switch_to. For a user mode helper, the gp value can be observed in user space after execve or possibly by other means.
[From the email thread]
The / Kernel thread / comment is somewhat inaccurate in that it is also used for user_mode_helper threads, which exec a user process, e.g. /sbin/init or when /proc/sys/kernel/core_pattern is a pipe. Such threads do not have PF_KTHREAD set and are valid targets for ptrace etc. even before they exec.
childregs is the user context during syscall execution and it is observable from userspace in at least five ways:
- kernel_execve does not currently clear integer registers, so the starting register state for PID 1 and other user processes started by the kernel has sp = user stack, gp = kernel __global_pointer$, all other integer registers zeroed by the memset in the patch comment.
This is a bug in its own right, but I'm unwilling to bet that it is the only way to exploit the issue addressed by this patch.
-
ptrace(PTRACE_GETREGSET): you can PTRACE_ATTACH to a user_mode_helper thread before it execs, but ptrace requires SIGSTOP to be delivered which can only happen at user/kernel boundaries.
-
/proc//task//syscall: this is perfectly happy to read pt_regs for user_mode_helpers before the exec completes, but gp is not one of the registers it returns.
-
PERF_SAMPLE_REGS_USER: LOCKDOWN_PERF normally prevents access to kernel addresses via PERF_SAMPLE_REGS_INTR, but due to this bug kernel addresses are also exposed via PERF_SAMPLE_REGS_USER which is permitted under LOCKDOWN_PERF. I have not attempted to write exploit code.
-
Much of the tracing infrastructure allows access to user registers. I have not attempted to determine which forms of tracing allow access to user registers without already allowing access to kernel registers.(CVE-2024-35871)
In the Linux kernel, the following vulnerability has been resolved:
erspan: make sure erspan_base_hdr is present in skb->head
syzbot reported a problem in ip6erspan_rcv() [1]
Issue is that ip6erspan_rcv() (and erspan_rcv()) no longer make sure erspan_base_hdr is present in skb linear part (skb->head) before getting @ver field from it.
Add the missing pskb_may_pull() calls.
v2: Reload iph pointer in erspan_rcv() after pskb_may_pull() because skb->head might have changed.
[1]
BUG: KMSAN: uninit-value in pskb_may_pull_reason include/linux/skbuff.h:2742 [inline] BUG: KMSAN: uninit-value in pskb_may_pull include/linux/skbuff.h:2756 [inline] BUG: KMSAN: uninit-value in ip6erspan_rcv net/ipv6/ip6_gre.c:541 [inline] BUG: KMSAN: uninit-value in gre_rcv+0x11f8/0x1930 net/ipv6/ip6_gre.c:610 pskb_may_pull_reason include/linux/skbuff.h:2742 [inline] pskb_may_pull include/linux/skbuff.h:2756 [inline] ip6erspan_rcv net/ipv6/ip6_gre.c:541 [inline] gre_rcv+0x11f8/0x1930 net/ipv6/ip6_gre.c:610 ip6_protocol_deliver_rcu+0x1d4c/0x2ca0 net/ipv6/ip6_input.c:438 ip6_input_finish net/ipv6/ip6_input.c:483 [inline] NF_HOOK include/linux/netfilter.h:314 [inline] ip6_input+0x15d/0x430 net/ipv6/ip6_input.c:492 ip6_mc_input+0xa7e/0xc80 net/ipv6/ip6_input.c:586 dst_input include/net/dst.h:460 [inline] ip6_rcv_finish+0x955/0x970 net/ipv6/ip6_input.c:79 NF_HOOK include/linux/netfilter.h:314 [inline] ipv6_rcv+0xde/0x390 net/ipv6/ip6_input.c:310 __netif_receive_skb_one_core net/core/dev.c:5538 [inline] __netif_receive_skb+0x1da/0xa00 net/core/dev.c:5652 netif_receive_skb_internal net/core/dev.c:5738 [inline] netif_receive_skb+0x58/0x660 net/core/dev.c:5798 tun_rx_batched+0x3ee/0x980 drivers/net/tun.c:1549 tun_get_user+0x5566/0x69e0 drivers/net/tun.c:2002 tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048 call_write_iter include/linux/fs.h:2108 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0xb63/0x1520 fs/read_write.c:590 ksys_write+0x20f/0x4c0 fs/read_write.c:643 __do_sys_write fs/read_write.c:655 [inline] __se_sys_write fs/read_write.c:652 [inline] __x64_sys_write+0x93/0xe0 fs/read_write.c:652 do_syscall_64+0xd5/0x1f0 entry_SYSCALL_64_after_hwframe+0x6d/0x75
Uninit was created at: slab_post_alloc_hook mm/slub.c:3804 [inline] slab_alloc_node mm/slub.c:3845 [inline] kmem_cache_alloc_node+0x613/0xc50 mm/slub.c:3888 kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:577 __alloc_skb+0x35b/0x7a0 net/core/skbuff.c:668 alloc_skb include/linux/skbuff.h:1318 [inline] alloc_skb_with_frags+0xc8/0xbf0 net/core/skbuff.c:6504 sock_alloc_send_pskb+0xa81/0xbf0 net/core/sock.c:2795 tun_alloc_skb drivers/net/tun.c:1525 [inline] tun_get_user+0x209a/0x69e0 drivers/net/tun.c:1846 tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048 call_write_iter include/linux/fs.h:2108 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0xb63/0x1520 fs/read_write.c:590 ksys_write+0x20f/0x4c0 fs/read_write.c:643 __do_sys_write fs/read_write.c:655 [inline] __se_sys_write fs/read_write.c:652 [inline] __x64_sys_write+0x93/0xe0 fs/read_write.c:652 do_syscall_64+0xd5/0x1f0 entry_SYSCALL_64_after_hwframe+0x6d/0x75
CPU: 1 PID: 5045 Comm: syz-executor114 Not tainted 6.9.0-rc1-syzkaller-00021-g962490525cff #0(CVE-2024-35888)
In the Linux kernel, the following vulnerability has been resolved:
bpf, sockmap: Prevent lock inversion deadlock in map delete elem
syzkaller started using corpuses where a BPF tracing program deletes elements from a sockmap/sockhash map. Because BPF tracing programs can be invoked from any interrupt context, locks taken during a map_delete_elem operation must be hardirq-safe. Otherwise a deadlock due to lock inversion is possible, as reported by lockdep:
CPU0 CPU1
---- ----
lock(&htab->buckets[i].lock); local_irq_disable(); lock(&host->lock); lock(&htab->buckets[i].lock); <Interrupt> lock(&host->lock);
Locks in sockmap are hardirq-unsafe by design. We expects elements to be deleted from sockmap/sockhash only in task (normal) context with interrupts enabled, or in softirq context.
Detect when map_delete_elem operation is invoked from a context which is not hardirq-unsafe, that is interrupts are disabled, and bail out with an error.
Note that map updates are not affected by this issue. BPF verifier does not allow updating sockmap/sockhash from a BPF tracing program today.(CVE-2024-35895)
In the Linux kernel, the following vulnerability has been resolved:
netfilter: validate user input for expected length
I got multiple syzbot reports showing old bugs exposed by BPF after commit 20f2505fb436 ("bpf: Try to avoid kzalloc in cgroup/{s,g}etsockopt")
setsockopt() @optlen argument should be taken into account before copying data.
BUG: KASAN: slab-out-of-bounds in copy_from_sockptr_offset include/linux/sockptr.h:49 [inline] BUG: KASAN: slab-out-of-bounds in copy_from_sockptr include/linux/sockptr.h:55 [inline] BUG: KASAN: slab-out-of-bounds in do_replace net/ipv4/netfilter/ip_tables.c:1111 [inline] BUG: KASAN: slab-out-of-bounds in do_ipt_set_ctl+0x902/0x3dd0 net/ipv4/netfilter/ip_tables.c:1627 Read of size 96 at addr ffff88802cd73da0 by task syz-executor.4/7238
CPU: 1 PID: 7238 Comm: syz-executor.4 Not tainted 6.9.0-rc2-next-20240403-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 print_address_description mm/kasan/report.c:377 [inline] print_report+0x169/0x550 mm/kasan/report.c:488 kasan_report+0x143/0x180 mm/kasan/report.c:601 kasan_check_range+0x282/0x290 mm/kasan/generic.c:189 __asan_memcpy+0x29/0x70 mm/kasan/shadow.c:105 copy_from_sockptr_offset include/linux/sockptr.h:49 [inline] copy_from_sockptr include/linux/sockptr.h:55 [inline] do_replace net/ipv4/netfilter/ip_tables.c:1111 [inline] do_ipt_set_ctl+0x902/0x3dd0 net/ipv4/netfilter/ip_tables.c:1627 nf_setsockopt+0x295/0x2c0 net/netfilter/nf_sockopt.c:101 do_sock_setsockopt+0x3af/0x720 net/socket.c:2311 __sys_setsockopt+0x1ae/0x250 net/socket.c:2334 __do_sys_setsockopt net/socket.c:2343 [inline] __se_sys_setsockopt net/socket.c:2340 [inline] __x64_sys_setsockopt+0xb5/0xd0 net/socket.c:2340 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x72/0x7a RIP: 0033:0x7fd22067dde9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fd21f9ff0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007fd2207abf80 RCX: 00007fd22067dde9 RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007fd2206ca47a R08: 0000000000000001 R09: 0000000000000000 R10: 0000000020000880 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fd2207abf80 R15: 00007ffd2d0170d8 </TASK>
Allocated by task 7238: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:370 [inline] __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:387 kasan_kmalloc include/linux/kasan.h:211 [inline] __do_kmalloc_node mm/slub.c:4069 [inline] __kmalloc_noprof+0x200/0x410 mm/slub.c:4082 kmalloc_noprof include/linux/slab.h:664 [inline] __cgroup_bpf_run_filter_setsockopt+0xd47/0x1050 kernel/bpf/cgroup.c:1869 do_sock_setsockopt+0x6b4/0x720 net/socket.c:2293 __sys_setsockopt+0x1ae/0x250 net/socket.c:2334 __do_sys_setsockopt net/socket.c:2343 [inline] __se_sys_setsockopt net/socket.c:2340 [inline] __x64_sys_setsockopt+0xb5/0xd0 net/socket.c:2340 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x72/0x7a
The buggy address belongs to the object at ffff88802cd73da0 which belongs to the cache kmalloc-8 of size 8 The buggy address is located 0 bytes inside of allocated 1-byte region [ffff88802cd73da0, ffff88802cd73da1)
The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88802cd73020 pfn:0x2cd73 flags: 0xfff80000000000(node=0|zone=1|lastcpupid=0xfff) page_type: 0xffffefff(slab) raw: 00fff80000000000 ffff888015041280 dead000000000100 dead000000000122 raw: ffff88802cd73020 000000008080007f 00000001ffffefff 00 ---truncated---(CVE-2024-35896)
In the Linux kernel, the following vulnerability has been resolved:
bpf: Protect against int overflow for stack access size
This patch re-introduces protection against the size of access to stack memory being negative; the access size can appear negative as a result of overflowing its signed int representation. This should not actually happen, as there are other protections along the way, but we should protect against it anyway. One code path was missing such protections (fixed in the previous patch in the series), causing out-of-bounds array accesses in check_stack_range_initialized(). This patch causes the verification of a program with such a non-sensical access size to fail.
This check used to exist in a more indirect way, but was inadvertendly removed in a833a17aeac7.(CVE-2024-35905)
In the Linux kernel, the following vulnerability has been resolved:
usb: typec: ucsi: Limit read size on v1.2
Between UCSI 1.2 and UCSI 2.0, the size of the MESSAGE_IN region was increased from 16 to 256. In order to avoid overflowing reads for older systems, add a mechanism to use the read UCSI version to truncate read sizes on UCSI v1.2.(CVE-2024-35924)
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: SCO: Fix not validating setsockopt user input
syzbot reported sco_sock_setsockopt() is copying data without checking user input length.
BUG: KASAN: slab-out-of-bounds in copy_from_sockptr_offset include/linux/sockptr.h:49 [inline] BUG: KASAN: slab-out-of-bounds in copy_from_sockptr include/linux/sockptr.h:55 [inline] BUG: KASAN: slab-out-of-bounds in sco_sock_setsockopt+0xc0b/0xf90 net/bluetooth/sco.c:893 Read of size 4 at addr ffff88805f7b15a3 by task syz-executor.5/12578(CVE-2024-35967)
In the Linux kernel, the following vulnerability has been resolved:
geneve: fix header validation in geneve[6]_xmit_skb
syzbot is able to trigger an uninit-value in geneve_xmit() [1]
Problem : While most ip tunnel helpers (like ip_tunnel_get_dsfield()) uses skb_protocol(skb, true), pskb_inet_may_pull() is only using skb->protocol.
If anything else than ETH_P_IPV6 or ETH_P_IP is found in skb->protocol, pskb_inet_may_pull() does nothing at all.
If a vlan tag was provided by the caller (af_packet in the syzbot case), the network header might not point to the correct location, and skb linear part could be smaller than expected.
Add skb_vlan_inet_prepare() to perform a complete mac validation.
Use this in geneve for the moment, I suspect we need to adopt this more broadly.
v4 - Jakub reported v3 broke l2_tos_ttl_inherit.sh selftest - Only call __vlan_get_protocol() for vlan types.
v2,v3 - Addressed Sabrina comments on v1 and v2
[1]
BUG: KMSAN: uninit-value in geneve_xmit_skb drivers/net/geneve.c:910 [inline] BUG: KMSAN: uninit-value in geneve_xmit+0x302d/0x5420 drivers/net/geneve.c:1030 geneve_xmit_skb drivers/net/geneve.c:910 [inline] geneve_xmit+0x302d/0x5420 drivers/net/geneve.c:1030 __netdev_start_xmit include/linux/netdevice.h:4903 [inline] netdev_start_xmit include/linux/netdevice.h:4917 [inline] xmit_one net/core/dev.c:3531 [inline] dev_hard_start_xmit+0x247/0xa20 net/core/dev.c:3547 __dev_queue_xmit+0x348d/0x52c0 net/core/dev.c:4335 dev_queue_xmit include/linux/netdevice.h:3091 [inline] packet_xmit+0x9c/0x6c0 net/packet/af_packet.c:276 packet_snd net/packet/af_packet.c:3081 [inline] packet_sendmsg+0x8bb0/0x9ef0 net/packet/af_packet.c:3113 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x30f/0x380 net/socket.c:745 __sys_sendto+0x685/0x830 net/socket.c:2191 __do_sys_sendto net/socket.c:2203 [inline] __se_sys_sendto net/socket.c:2199 [inline] __x64_sys_sendto+0x125/0x1d0 net/socket.c:2199 do_syscall_64+0xd5/0x1f0 entry_SYSCALL_64_after_hwframe+0x6d/0x75
Uninit was created at: slab_post_alloc_hook mm/slub.c:3804 [inline] slab_alloc_node mm/slub.c:3845 [inline] kmem_cache_alloc_node+0x613/0xc50 mm/slub.c:3888 kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:577 __alloc_skb+0x35b/0x7a0 net/core/skbuff.c:668 alloc_skb include/linux/skbuff.h:1318 [inline] alloc_skb_with_frags+0xc8/0xbf0 net/core/skbuff.c:6504 sock_alloc_send_pskb+0xa81/0xbf0 net/core/sock.c:2795 packet_alloc_skb net/packet/af_packet.c:2930 [inline] packet_snd net/packet/af_packet.c:3024 [inline] packet_sendmsg+0x722d/0x9ef0 net/packet/af_packet.c:3113 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x30f/0x380 net/socket.c:745 __sys_sendto+0x685/0x830 net/socket.c:2191 __do_sys_sendto net/socket.c:2203 [inline] __se_sys_sendto net/socket.c:2199 [inline] __x64_sys_sendto+0x125/0x1d0 net/socket.c:2199 do_syscall_64+0xd5/0x1f0 entry_SYSCALL_64_after_hwframe+0x6d/0x75
CPU: 0 PID: 5033 Comm: syz-executor346 Not tainted 6.9.0-rc1-syzkaller-00005-g928a87efa423 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024(CVE-2024-35973)
In the Linux kernel, the following vulnerability has been resolved:
batman-adv: Avoid infinite loop trying to resize local TT
If the MTU of one of an attached interface becomes too small to transmit the local translation table then it must be resized to fit inside all fragments (when enabled) or a single packet.
But if the MTU becomes too low to transmit even the header + the VLAN specific part then the resizing of the local TT will never succeed. This can for example happen when the usable space is 110 bytes and 11 VLANs are on top of batman-adv. In this case, at least 116 byte would be needed. There will just be an endless spam of
batman_adv: batadv0: Forced to purge local tt entries to fit new maximum fragment MTU (110)
in the log but the function will never finish. Problem here is that the timeout will be halved all the time and will then stagnate at 0 and therefore never be able to reduce the table even more.
There are other scenarios possible with a similar result. The number of BATADV_TT_CLIENT_NOPURGE entries in the local TT can for example be too high to fit inside a packet. Such a scenario can therefore happen also with only a single VLAN + 7 non-purgable addresses - requiring at least 120 bytes.
While this should be handled proactively when:
- interface with too low MTU is added
- VLAN is added
- non-purgeable local mac is added
- MTU of an attached interface is reduced
- fragmentation setting gets disabled (which most likely requires dropping attached interfaces)
not all of these scenarios can be prevented because batman-adv is only consuming events without the the possibility to prevent these actions (non-purgable MAC address added, MTU of an attached interface is reduced). It is therefore necessary to also make sure that the code is able to handle also the situations when there were already incompatible system configuration are present.(CVE-2024-35982)
In the Linux kernel, the following vulnerability has been resolved:
i2c: smbus: fix NULL function pointer dereference
Baruch reported an OOPS when using the designware controller as target only. Target-only modes break the assumption of one transfer function always being available. Fix this by always checking the pointer in __i2c_transfer.
wsa: dropped the simplification in core-smbus to avoid theoretical regressions
In the Linux kernel, the following vulnerability has been resolved:
rtnetlink: Correct nested IFLA_VF_VLAN_LIST attribute validation
Each attribute inside a nested IFLA_VF_VLAN_LIST is assumed to be a struct ifla_vf_vlan_info so the size of such attribute needs to be at least of sizeof(struct ifla_vf_vlan_info) which is 14 bytes. The current size validation in do_setvfinfo is against NLA_HDRLEN (4 bytes) which is less than sizeof(struct ifla_vf_vlan_info) so this validation is not enough and a too small attribute might be cast to a struct ifla_vf_vlan_info, this might result in an out of bands read access when accessing the saved (casted) entry in ivvl.(CVE-2024-36017)
In the Linux kernel, the following vulnerability has been resolved:
mmc: sdhci-msm: pervent access to suspended controller
Generic sdhci code registers LED device and uses host->runtime_suspended flag to protect access to it. The sdhci-msm driver doesn't set this flag, which causes a crash when LED is accessed while controller is runtime suspended. Fix this by setting the flag correctly.(CVE-2024-36029)
In the Linux kernel, the following vulnerability has been resolved:
net: fix out-of-bounds access in ops_init
net_alloc_generic is called by net_alloc, which is called without any locking. It reads max_gen_ptrs, which is changed under pernet_ops_rwsem. It is read twice, first to allocate an array, then to set s.len, which is later used to limit the bounds of the array access.
It is possible that the array is allocated and another thread is registering a new pernet ops, increments max_gen_ptrs, which is then used to set s.len with a larger than allocated length for the variable array.
Fix it by reading max_gen_ptrs only once in net_alloc_generic. If max_gen_ptrs is later incremented, it will be caught in net_assign_generic.(CVE-2024-36883)
In the Linux kernel, the following vulnerability has been resolved:
tipc: fix UAF in error path
Sam Page (sam4k) working with Trend Micro Zero Day Initiative reported a UAF in the tipc_buf_append() error path:
BUG: KASAN: slab-use-after-free in kfree_skb_list_reason+0x47e/0x4c0 linux/net/core/skbuff.c:1183 Read of size 8 at addr ffff88804d2a7c80 by task poc/8034
CPU: 1 PID: 8034 Comm: poc Not tainted 6.8.2 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-debian-1.16.0-5 04/01/2014 Call Trace: <IRQ> __dump_stack linux/lib/dump_stack.c:88 dump_stack_lvl+0xd9/0x1b0 linux/lib/dump_stack.c:106 print_address_description linux/mm/kasan/report.c:377 print_report+0xc4/0x620 linux/mm/kasan/report.c:488 kasan_report+0xda/0x110 linux/mm/kasan/report.c:601 kfree_skb_list_reason+0x47e/0x4c0 linux/net/core/skbuff.c:1183 skb_release_data+0x5af/0x880 linux/net/core/skbuff.c:1026 skb_release_all linux/net/core/skbuff.c:1094 __kfree_skb linux/net/core/skbuff.c:1108 kfree_skb_reason+0x12d/0x210 linux/net/core/skbuff.c:1144 kfree_skb linux/./include/linux/skbuff.h:1244 tipc_buf_append+0x425/0xb50 linux/net/tipc/msg.c:186 tipc_link_input+0x224/0x7c0 linux/net/tipc/link.c:1324 tipc_link_rcv+0x76e/0x2d70 linux/net/tipc/link.c:1824 tipc_rcv+0x45f/0x10f0 linux/net/tipc/node.c:2159 tipc_udp_recv+0x73b/0x8f0 linux/net/tipc/udp_media.c:390 udp_queue_rcv_one_skb+0xad2/0x1850 linux/net/ipv4/udp.c:2108 udp_queue_rcv_skb+0x131/0xb00 linux/net/ipv4/udp.c:2186 udp_unicast_rcv_skb+0x165/0x3b0 linux/net/ipv4/udp.c:2346 __udp4_lib_rcv+0x2594/0x3400 linux/net/ipv4/udp.c:2422 ip_protocol_deliver_rcu+0x30c/0x4e0 linux/net/ipv4/ip_input.c:205 ip_local_deliver_finish+0x2e4/0x520 linux/net/ipv4/ip_input.c:233 NF_HOOK linux/./include/linux/netfilter.h:314 NF_HOOK linux/./include/linux/netfilter.h:308 ip_local_deliver+0x18e/0x1f0 linux/net/ipv4/ip_input.c:254 dst_input linux/./include/net/dst.h:461 ip_rcv_finish linux/net/ipv4/ip_input.c:449 NF_HOOK linux/./include/linux/netfilter.h:314 NF_HOOK linux/./include/linux/netfilter.h:308 ip_rcv+0x2c5/0x5d0 linux/net/ipv4/ip_input.c:569 __netif_receive_skb_one_core+0x199/0x1e0 linux/net/core/dev.c:5534 __netif_receive_skb+0x1f/0x1c0 linux/net/core/dev.c:5648 process_backlog+0x101/0x6b0 linux/net/core/dev.c:5976 __napi_poll.constprop.0+0xba/0x550 linux/net/core/dev.c:6576 napi_poll linux/net/core/dev.c:6645 net_rx_action+0x95a/0xe90 linux/net/core/dev.c:6781 __do_softirq+0x21f/0x8e7 linux/kernel/softirq.c:553 do_softirq linux/kernel/softirq.c:454 do_softirq+0xb2/0xf0 linux/kernel/softirq.c:441 </IRQ> <TASK> __local_bh_enable_ip+0x100/0x120 linux/kernel/softirq.c:381 local_bh_enable linux/./include/linux/bottom_half.h:33 rcu_read_unlock_bh linux/./include/linux/rcupdate.h:851 __dev_queue_xmit+0x871/0x3ee0 linux/net/core/dev.c:4378 dev_queue_xmit linux/./include/linux/netdevice.h:3169 neigh_hh_output linux/./include/net/neighbour.h:526 neigh_output linux/./include/net/neighbour.h:540 ip_finish_output2+0x169f/0x2550 linux/net/ipv4/ip_output.c:235 __ip_finish_output linux/net/ipv4/ip_output.c:313 __ip_finish_output+0x49e/0x950 linux/net/ipv4/ip_output.c:295 ip_finish_output+0x31/0x310 linux/net/ipv4/ip_output.c:323 NF_HOOK_COND linux/./include/linux/netfilter.h:303 ip_output+0x13b/0x2a0 linux/net/ipv4/ip_output.c:433 dst_output linux/./include/net/dst.h:451 ip_local_out linux/net/ipv4/ip_output.c:129 ip_send_skb+0x3e5/0x560 linux/net/ipv4/ip_output.c:1492 udp_send_skb+0x73f/0x1530 linux/net/ipv4/udp.c:963 udp_sendmsg+0x1a36/0x2b40 linux/net/ipv4/udp.c:1250 inet_sendmsg+0x105/0x140 linux/net/ipv4/af_inet.c:850 sock_sendmsg_nosec linux/net/socket.c:730 __sock_sendmsg linux/net/socket.c:745 __sys_sendto+0x42c/0x4e0 linux/net/socket.c:2191 __do_sys_sendto linux/net/socket.c:2203 __se_sys_sendto linux/net/socket.c:2199 __x64_sys_sendto+0xe0/0x1c0 linux/net/socket.c:2199 do_syscall_x64 linux/arch/x86/entry/common.c:52 do_syscall_ ---truncated---(CVE-2024-36886)
In the Linux kernel, the following vulnerability has been resolved:
mptcp: ensure snd_nxt is properly initialized on connect
Christoph reported a splat hinting at a corrupted snd_una:
WARNING: CPU: 1 PID: 38 at net/mptcp/protocol.c:1005 __mptcp_clean_una+0x4b3/0x620 net/mptcp/protocol.c:1005 Modules linked in: CPU: 1 PID: 38 Comm: kworker/1:1 Not tainted 6.9.0-rc1-gbbeac67456c9 #59 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-2.el7 04/01/2014 Workqueue: events mptcp_worker RIP: 0010:__mptcp_clean_una+0x4b3/0x620 net/mptcp/protocol.c:1005 Code: be 06 01 00 00 bf 06 01 00 00 e8 a8 12 e7 fe e9 00 fe ff ff e8 8e 1a e7 fe 0f b7 ab 3e 02 00 00 e9 d3 fd ff ff e8 7d 1a e7 fe <0f> 0b 4c 8b bb e0 05 00 00 e9 74 fc ff ff e8 6a 1a e7 fe 0f 0b e9 RSP: 0018:ffffc9000013fd48 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff8881029bd280 RCX: ffffffff82382fe4 RDX: ffff8881003cbd00 RSI: ffffffff823833c3 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: fefefefefefefeff R12: ffff888138ba8000 R13: 0000000000000106 R14: ffff8881029bd908 R15: ffff888126560000 FS: 0000000000000000(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f604a5dae38 CR3: 0000000101dac002 CR4: 0000000000170ef0 Call Trace: <TASK> __mptcp_clean_una_wakeup net/mptcp/protocol.c:1055 [inline] mptcp_clean_una_wakeup net/mptcp/protocol.c:1062 [inline] __mptcp_retrans+0x7f/0x7e0 net/mptcp/protocol.c:2615 mptcp_worker+0x434/0x740 net/mptcp/protocol.c:2767 process_one_work+0x1e0/0x560 kernel/workqueue.c:3254 process_scheduled_works kernel/workqueue.c:3335 [inline] worker_thread+0x3c7/0x640 kernel/workqueue.c:3416 kthread+0x121/0x170 kernel/kthread.c:388 ret_from_fork+0x44/0x50 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 </TASK>
When fallback to TCP happens early on a client socket, snd_nxt is not yet initialized and any incoming ack will copy such value into snd_una. If the mptcp worker (dumbly) tries mptcp-level re-injection after such ack, that would unconditionally trigger a send buffer cleanup using 'bad' snd_una values.
We could easily disable re-injection for fallback sockets, but such dumb behavior already helped catching a few subtle issues and a very low to zero impact in practice.
Instead address the issue always initializing snd_nxt (and write_seq, for consistency) at connect time.(CVE-2024-36889)
In the Linux kernel, the following vulnerability has been resolved:
gpiolib: cdev: fix uninitialised kfifo
If a line is requested with debounce, and that results in debouncing in software, and the line is subsequently reconfigured to enable edge detection then the allocation of the kfifo to contain edge events is overlooked. This results in events being written to and read from an uninitialised kfifo. Read events are returned to userspace.
Initialise the kfifo in the case where the software debounce is already active.(CVE-2024-36898)
In the Linux kernel, the following vulnerability has been resolved:
gpiolib: cdev: Fix use after free in lineinfo_changed_notify
The use-after-free issue occurs as follows: when the GPIO chip device file is being closed by invoking gpio_chrdev_release(), watched_lines is freed by bitmap_free(), but the unregistration of lineinfo_changed_nb notifier chain failed due to waiting write rwsem. Additionally, one of the GPIO chip's lines is also in the release process and holds the notifier chain's read rwsem. Consequently, a race condition leads to the use-after-free of watched_lines.
Here is the typical stack when issue happened:
[free] gpio_chrdev_release() --> bitmap_free(cdev->watched_lines) <-- freed --> blocking_notifier_chain_unregister() --> down_write(&nh->rwsem) <-- waiting rwsem --> __down_write_common() --> rwsem_down_write_slowpath() --> schedule_preempt_disabled() --> schedule()
[use] st54spi_gpio_dev_release() --> gpio_free() --> gpiod_free() --> gpiod_free_commit() --> gpiod_line_state_notify() --> blocking_notifier_call_chain() --> down_read(&nh->rwsem); <-- held rwsem --> notifier_call_chain() --> lineinfo_changed_notify() --> test_bit(xxxx, cdev->watched_lines) <-- use after free
The side effect of the use-after-free issue is that a GPIO line event is being generated for userspace where it shouldn't. However, since the chrdev is being closed, userspace won't have the chance to read that event anyway.
To fix the issue, call the bitmap_free() function after the unregistration of lineinfo_changed_nb notifier chain.(CVE-2024-36899)
In the Linux kernel, the following vulnerability has been resolved:
ipv6: prevent NULL dereference in ip6_output()
According to syzbot, there is a chance that ip6_dst_idev() returns NULL in ip6_output(). Most places in IPv6 stack deal with a NULL idev just fine, but not here.
syzbot reported:
general protection fault, probably for non-canonical address 0xdffffc00000000bc: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x00000000000005e0-0x00000000000005e7] CPU: 0 PID: 9775 Comm: syz-executor.4 Not tainted 6.9.0-rc5-syzkaller-00157-g6a30653b604a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:ip6_output+0x231/0x3f0 net/ipv6/ip6_output.c:237 Code: 3c 1e 00 49 89 df 74 08 4c 89 ef e8 19 58 db f7 48 8b 44 24 20 49 89 45 00 49 89 c5 48 8d 9d e0 05 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 4c 8b 74 24 28 0f 85 61 01 00 00 8b 1b 31 ff RSP: 0018:ffffc9000927f0d8 EFLAGS: 00010202 RAX: 00000000000000bc RBX: 00000000000005e0 RCX: 0000000000040000 RDX: ffffc900131f9000 RSI: 0000000000004f47 RDI: 0000000000004f48 RBP: 0000000000000000 R08: ffffffff8a1f0b9a R09: 1ffffffff1f51fad R10: dffffc0000000000 R11: fffffbfff1f51fae R12: ffff8880293ec8c0 R13: ffff88805d7fc000 R14: 1ffff1100527d91a R15: dffffc0000000000 FS: 00007f135c6856c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000080 CR3: 0000000064096000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> NF_HOOK include/linux/netfilter.h:314 [inline] ip6_xmit+0xefe/0x17f0 net/ipv6/ip6_output.c:358 sctp_v6_xmit+0x9f2/0x13f0 net/sctp/ipv6.c:248 sctp_packet_transmit+0x26ad/0x2ca0 net/sctp/output.c:653 sctp_packet_singleton+0x22c/0x320 net/sctp/outqueue.c:783 sctp_outq_flush_ctrl net/sctp/outqueue.c:914 [inline] sctp_outq_flush+0x6d5/0x3e20 net/sctp/outqueue.c:1212 sctp_side_effects net/sctp/sm_sideeffect.c:1198 [inline] sctp_do_sm+0x59cc/0x60c0 net/sctp/sm_sideeffect.c:1169 sctp_primitive_ASSOCIATE+0x95/0xc0 net/sctp/primitive.c:73 __sctp_connect+0x9cd/0xe30 net/sctp/socket.c:1234 sctp_connect net/sctp/socket.c:4819 [inline] sctp_inet_connect+0x149/0x1f0 net/sctp/socket.c:4834 __sys_connect_file net/socket.c:2048 [inline] __sys_connect+0x2df/0x310 net/socket.c:2065 __do_sys_connect net/socket.c:2075 [inline] __se_sys_connect net/socket.c:2072 [inline] __x64_sys_connect+0x7a/0x90 net/socket.c:2072 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f(CVE-2024-36901)
In the Linux kernel, the following vulnerability has been resolved:
ipv6: fib6_rules: avoid possible NULL dereference in fib6_rule_action()
syzbot is able to trigger the following crash [1], caused by unsafe ip6_dst_idev() use.
Indeed ip6_dst_idev() can return NULL, and must always be checked.
[1]
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 PID: 31648 Comm: syz-executor.0 Not tainted 6.9.0-rc4-next-20240417-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:__fib6_rule_action net/ipv6/fib6_rules.c:237 [inline] RIP: 0010:fib6_rule_action+0x241/0x7b0 net/ipv6/fib6_rules.c:267 Code: 02 00 00 49 8d 9f d8 00 00 00 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 f9 32 bf f7 48 8b 1b 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 e0 32 bf f7 4c 8b 03 48 89 ef 4c RSP: 0018:ffffc9000fc1f2f0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 1a772f98c8186700 RDX: 0000000000000003 RSI: ffffffff8bcac4e0 RDI: ffffffff8c1f9760 RBP: ffff8880673fb980 R08: ffffffff8fac15ef R09: 1ffffffff1f582bd R10: dffffc0000000000 R11: fffffbfff1f582be R12: dffffc0000000000 R13: 0000000000000080 R14: ffff888076509000 R15: ffff88807a029a00 FS: 00007f55e82ca6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31d23000 CR3: 0000000022b66000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> fib_rules_lookup+0x62c/0xdb0 net/core/fib_rules.c:317 fib6_rule_lookup+0x1fd/0x790 net/ipv6/fib6_rules.c:108 ip6_route_output_flags_noref net/ipv6/route.c:2637 [inline] ip6_route_output_flags+0x38e/0x610 net/ipv6/route.c:2649 ip6_route_output include/net/ip6_route.h:93 [inline] ip6_dst_lookup_tail+0x189/0x11a0 net/ipv6/ip6_output.c:1120 ip6_dst_lookup_flow+0xb9/0x180 net/ipv6/ip6_output.c:1250 sctp_v6_get_dst+0x792/0x1e20 net/sctp/ipv6.c:326 sctp_transport_route+0x12c/0x2e0 net/sctp/transport.c:455 sctp_assoc_add_peer+0x614/0x15c0 net/sctp/associola.c:662 sctp_connect_new_asoc+0x31d/0x6c0 net/sctp/socket.c:1099 __sctp_connect+0x66d/0xe30 net/sctp/socket.c:1197 sctp_connect net/sctp/socket.c:4819 [inline] sctp_inet_connect+0x149/0x1f0 net/sctp/socket.c:4834 __sys_connect_file net/socket.c:2048 [inline] __sys_connect+0x2df/0x310 net/socket.c:2065 __do_sys_connect net/socket.c:2075 [inline] __se_sys_connect net/socket.c:2072 [inline] __x64_sys_connect+0x7a/0x90 net/socket.c:2072 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f(CVE-2024-36902)
In the Linux kernel, the following vulnerability has been resolved:
ipv6: Fix potential uninit-value access in __ip6_make_skb()
As it was done in commit fc1092f51567 ("ipv4: Fix uninit-value access in __ip_make_skb()") for IPv4, check FLOWI_FLAG_KNOWN_NH on fl6->flowi6_flags instead of testing HDRINCL on the socket to avoid a race condition which causes uninit-value access.(CVE-2024-36903)
In the Linux kernel, the following vulnerability has been resolved:
ARM: 9381/1: kasan: clear stale stack poison
We found below OOB crash:
[ 33.452494] ================================================================== [ 33.453513] BUG: KASAN: stack-out-of-bounds in refresh_cpu_vm_stats.constprop.0+0xcc/0x2ec [ 33.454660] Write of size 164 at addr c1d03d30 by task swapper/0/0 [ 33.455515] [ 33.455767] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 6.1.25-mainline #1 [ 33.456880] Hardware name: Generic DT based system [ 33.457555] unwind_backtrace from show_stack+0x18/0x1c [ 33.458326] show_stack from dump_stack_lvl+0x40/0x4c [ 33.459072] dump_stack_lvl from print_report+0x158/0x4a4 [ 33.459863] print_report from kasan_report+0x9c/0x148 [ 33.460616] kasan_report from kasan_check_range+0x94/0x1a0 [ 33.461424] kasan_check_range from memset+0x20/0x3c [ 33.462157] memset from refresh_cpu_vm_stats.constprop.0+0xcc/0x2ec [ 33.463064] refresh_cpu_vm_stats.constprop.0 from tick_nohz_idle_stop_tick+0x180/0x53c [ 33.464181] tick_nohz_idle_stop_tick from do_idle+0x264/0x354 [ 33.465029] do_idle from cpu_startup_entry+0x20/0x24 [ 33.465769] cpu_startup_entry from rest_init+0xf0/0xf4 [ 33.466528] rest_init from arch_post_acpi_subsys_init+0x0/0x18 [ 33.467397] [ 33.467644] The buggy address belongs to stack of task swapper/0/0 [ 33.468493] and is located at offset 112 in frame: [ 33.469172] refresh_cpu_vm_stats.constprop.0+0x0/0x2ec [ 33.469917] [ 33.470165] This frame has 2 objects: [ 33.470696] [32, 76) 'global_zone_diff' [ 33.470729] [112, 276) 'global_node_diff' [ 33.471294] [ 33.472095] The buggy address belongs to the physical page: [ 33.472862] page:3cd72da8 refcount:1 mapcount:0 mapping:00000000 index:0x0 pfn:0x41d03 [ 33.473944] flags: 0x1000(reserved|zone=0) [ 33.474565] raw: 00001000 ed741470 ed741470 00000000 00000000 00000000 ffffffff 00000001 [ 33.475656] raw: 00000000 [ 33.476050] page dumped because: kasan: bad access detected [ 33.476816] [ 33.477061] Memory state around the buggy address: [ 33.477732] c1d03c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 33.478630] c1d03c80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 00 00 [ 33.479526] >c1d03d00: 00 04 f2 f2 f2 f2 00 00 00 00 00 00 f1 f1 f1 f1 [ 33.480415] ^ [ 33.481195] c1d03d80: 00 00 00 00 00 00 00 00 00 00 04 f3 f3 f3 f3 f3 [ 33.482088] c1d03e00: f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 [ 33.482978] ==================================================================
We find the root cause of this OOB is that arm does not clear stale stack poison in the case of cpuidle.
This patch refer to arch/arm64/kernel/sleep.S to resolve this issue.
From cited commit [1] that explain the problem
Functions which the compiler has instrumented for KASAN place poison on the stack shadow upon entry and remove this poison prior to returning.
In the case of cpuidle, CPUs exit the kernel a number of levels deep in C code. Any instrumented functions on this critical path will leave portions of the stack shadow poisoned.
If CPUs lose context and return to the kernel via a cold path, we restore a prior context saved in __cpu_suspend_enter are forgotten, and we never remove the poison they placed in the stack shadow area by functions calls between this and the actual exit of the kernel.
Thus, (depending on stackframe layout) subsequent calls to instrumented functions may hit this stale poison, resulting in (spurious) KASAN splats to the console.
To avoid this, clear any stale poison from the idle thread for a CPU prior to bringing a CPU online.
From cited commit [2]
Extend to check for CONFIG_KASAN_STACK
[1] commit 0d97e6d8024c ("arm64: kasan: clear stale stack poison") [2] commit d56a9ef84bd0 ("kasan, arm64: unpoison stack only with CONFIG_KASAN_STACK")(CVE-2024-36906)
In the Linux kernel, the following vulnerability has been resolved:
blk-iocost: do not WARN if iocg was already offlined
In iocg_pay_debt(), warn is triggered if 'active_list' is empty, which is intended to confirm iocg is active when it has debt. However, warn can be triggered during a blkcg or disk removal, if iocg_waitq_timer_fn() is run at that time:
WARNING: CPU: 0 PID: 2344971 at block/blk-iocost.c:1402 iocg_pay_debt+0x14c/0x190 Call trace: iocg_pay_debt+0x14c/0x190 iocg_kick_waitq+0x438/0x4c0 iocg_waitq_timer_fn+0xd8/0x130 __run_hrtimer+0x144/0x45c __hrtimer_run_queues+0x16c/0x244 hrtimer_interrupt+0x2cc/0x7b0
The warn in this situation is meaningless. Since this iocg is being removed, the state of the 'active_list' is irrelevant, and 'waitq_timer' is canceled after removing 'active_list' in ioc_pd_free(), which ensures iocg is freed after iocg_waitq_timer_fn() returns.
Therefore, add the check if iocg was already offlined to avoid warn when removing a blkcg or disk.(CVE-2024-36908)
In the Linux kernel, the following vulnerability has been resolved:
block: fix overflow in blk_ioctl_discard()
There is no check for overflow of 'start + len' in blk_ioctl_discard(). Hung task occurs if submit an discard ioctl with the following param: start = 0x80000000000ff000, len = 0x8000000000fff000; Add the overflow validation now.(CVE-2024-36917)
In the Linux kernel, the following vulnerability has been resolved:
scsi: lpfc: Release hbalock before calling lpfc_worker_wake_up()
lpfc_worker_wake_up() calls the lpfc_work_done() routine, which takes the hbalock. Thus, lpfc_worker_wake_up() should not be called while holding the hbalock to avoid potential deadlock.(CVE-2024-36924)
In the Linux kernel, the following vulnerability has been resolved:
s390/qeth: Fix kernel panic after setting hsuid
Symptom: When the hsuid attribute is set for the first time on an IQD Layer3 device while the corresponding network interface is already UP, the kernel will try to execute a napi function pointer that is NULL.
Example:
[ 2057.572696] illegal operation: 0001 ilc:1 [#1] SMP [ 2057.572702] Modules linked in: af_iucv qeth_l3 zfcp scsi_transport_fc sunrpc nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nf_tables_set nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables libcrc32c nfnetlink ghash_s390 prng xts aes_s390 des_s390 de s_generic sha3_512_s390 sha3_256_s390 sha512_s390 vfio_ccw vfio_mdev mdev vfio_iommu_type1 eadm_sch vfio ext4 mbcache jbd2 qeth_l2 bridge stp llc dasd_eckd_mod qeth dasd_mod qdio ccwgroup pkey zcrypt [ 2057.572739] CPU: 6 PID: 60182 Comm: stress_client Kdump: loaded Not tainted 4.18.0-541.el8.s390x #1 [ 2057.572742] Hardware name: IBM 3931 A01 704 (LPAR) [ 2057.572744] Krnl PSW : 0704f00180000000 0000000000000002 (0x2) [ 2057.572748] R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:3 PM:0 RI:0 EA:3 [ 2057.572751] Krnl GPRS: 0000000000000004 0000000000000000 00000000a3b008d8 0000000000000000 [ 2057.572754] 00000000a3b008d8 cb923a29c779abc5 0000000000000000 00000000814cfd80 [ 2057.572756] 000000000000012c 0000000000000000 00000000a3b008d8 00000000a3b008d8 [ 2057.572758] 00000000bab6d500 00000000814cfd80 0000000091317e46 00000000814cfc68 [ 2057.572762] Krnl Code:#0000000000000000: 0000 illegal >0000000000000002: 0000 illegal 0000000000000004: 0000 illegal 0000000000000006: 0000 illegal 0000000000000008: 0000 illegal 000000000000000a: 0000 illegal 000000000000000c: 0000 illegal 000000000000000e: 0000 illegal [ 2057.572800] Call Trace: [ 2057.572801] ([<00000000ec639700>] 0xec639700) [ 2057.572803] [<00000000913183e2>] net_rx_action+0x2ba/0x398 [ 2057.572809] [<0000000091515f76>] __do_softirq+0x11e/0x3a0 [ 2057.572813] [<0000000090ce160c>] do_softirq_own_stack+0x3c/0x58 [ 2057.572817] ([<0000000090d2cbd6>] do_softirq.part.1+0x56/0x60) [ 2057.572822] [<0000000090d2cc60>] __local_bh_enable_ip+0x80/0x98 [ 2057.572825] [<0000000091314706>] __dev_queue_xmit+0x2be/0xd70 [ 2057.572827] [<000003ff803dd6d6>] afiucv_hs_send+0x24e/0x300 [af_iucv] [ 2057.572830] [<000003ff803dd88a>] iucv_send_ctrl+0x102/0x138 [af_iucv] [ 2057.572833] [<000003ff803de72a>] iucv_sock_connect+0x37a/0x468 [af_iucv] [ 2057.572835] [<00000000912e7e90>] __sys_connect+0xa0/0xd8 [ 2057.572839] [<00000000912e9580>] sys_socketcall+0x228/0x348 [ 2057.572841] [<0000000091514e1a>] system_call+0x2a6/0x2c8 [ 2057.572843] Last Breaking-Event-Address: [ 2057.572844] [<0000000091317e44>] __napi_poll+0x4c/0x1d8 [ 2057.572846] [ 2057.572847] Kernel panic - not syncing: Fatal exception in interrupt
Analysis: There is one napi structure per out_q: card->qdio.out_qs[i].napi The napi.poll functions are set during qeth_open().
Since commit 1cfef80d4c2b ("s390/qeth: Don't call dev_close/dev_open (DOWN/UP)") qeth_set_offline()/qeth_set_online() no longer call dev_close()/ dev_open(). So if qeth_free_qdio_queues() cleared card->qdio.out_qs[i].napi.poll while the network interface was UP and the card was offline, they are not set again.
Reproduction: chzdev -e $devno layer2=0 ip link set dev $network_interface up echo 0 > /sys/bus/ccw ---truncated---(CVE-2024-36928)
In the Linux kernel, the following vulnerability has been resolved:
net: core: reject skb_copy(_expand) for fraglist GSO skbs
SKB_GSO_FRAGLIST skbs must not be linearized, otherwise they become invalid. Return NULL if such an skb is passed to skb_copy or skb_copy_expand, in order to prevent a crash on a potential later call to skb_gso_segment.(CVE-2024-36929)
In the Linux kernel, the following vulnerability has been resolved:
amd/amdkfd: sync all devices to wait all processes being evicted
If there are more than one device doing reset in parallel, the first device will call kfd_suspend_all_processes() to evict all processes on all devices, this call takes time to finish. other device will start reset and recover without waiting. if the process has not been evicted before doing recover, it will be restored, then caused page fault.(CVE-2024-36949)
In the Linux kernel, the following vulnerability has been resolved:
tipc: fix a possible memleak in tipc_buf_append
__skb_linearize() doesn't free the skb when it fails, so move '*buf = NULL' after __skb_linearize(), so that the skb can be freed on the err path.(CVE-2024-36954)
In the Linux kernel, the following vulnerability has been resolved:
octeontx2-af: avoid off-by-one read from userspace
We try to access count + 1 byte from userspace with memdup_user(buffer, count + 1). However, the userspace only provides buffer of count bytes and only these count bytes are verified to be okay to access. To ensure the copied buffer is NUL terminated, we use memdup_user_nul instead.(CVE-2024-36957)
In the Linux kernel, the following vulnerability has been resolved:
fs/9p: only translate RWX permissions for plain 9P2000
Garbage in plain 9P2000's perm bits is allowed through, which causes it to be able to set (among others) the suid bit. This was presumably not the intent since the unix extended bits are handled explicitly and conditionally on .u.(CVE-2024-36964)
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{
"affected": [
{
"ecosystem_specific": {
"aarch64": [
"perf-debuginfo-5.10.0-207.0.0.116.oe2203sp3.aarch64.rpm",
"kernel-debuginfo-5.10.0-207.0.0.116.oe2203sp3.aarch64.rpm",
"python3-perf-debuginfo-5.10.0-207.0.0.116.oe2203sp3.aarch64.rpm",
"kernel-tools-debuginfo-5.10.0-207.0.0.116.oe2203sp3.aarch64.rpm",
"kernel-tools-5.10.0-207.0.0.116.oe2203sp3.aarch64.rpm",
"kernel-5.10.0-207.0.0.116.oe2203sp3.aarch64.rpm",
"kernel-headers-5.10.0-207.0.0.116.oe2203sp3.aarch64.rpm",
"kernel-devel-5.10.0-207.0.0.116.oe2203sp3.aarch64.rpm",
"python3-perf-5.10.0-207.0.0.116.oe2203sp3.aarch64.rpm",
"perf-5.10.0-207.0.0.116.oe2203sp3.aarch64.rpm",
"kernel-tools-devel-5.10.0-207.0.0.116.oe2203sp3.aarch64.rpm",
"kernel-debugsource-5.10.0-207.0.0.116.oe2203sp3.aarch64.rpm",
"kernel-source-5.10.0-207.0.0.116.oe2203sp3.aarch64.rpm"
],
"src": [
"kernel-5.10.0-207.0.0.116.oe2203sp3.src.rpm"
],
"x86_64": [
"kernel-debuginfo-5.10.0-207.0.0.116.oe2203sp3.x86_64.rpm",
"kernel-tools-5.10.0-207.0.0.116.oe2203sp3.x86_64.rpm",
"python3-perf-5.10.0-207.0.0.116.oe2203sp3.x86_64.rpm",
"kernel-source-5.10.0-207.0.0.116.oe2203sp3.x86_64.rpm",
"kernel-headers-5.10.0-207.0.0.116.oe2203sp3.x86_64.rpm",
"perf-5.10.0-207.0.0.116.oe2203sp3.x86_64.rpm",
"kernel-devel-5.10.0-207.0.0.116.oe2203sp3.x86_64.rpm",
"kernel-tools-devel-5.10.0-207.0.0.116.oe2203sp3.x86_64.rpm",
"kernel-debugsource-5.10.0-207.0.0.116.oe2203sp3.x86_64.rpm",
"kernel-tools-debuginfo-5.10.0-207.0.0.116.oe2203sp3.x86_64.rpm",
"kernel-5.10.0-207.0.0.116.oe2203sp3.x86_64.rpm",
"python3-perf-debuginfo-5.10.0-207.0.0.116.oe2203sp3.x86_64.rpm",
"perf-debuginfo-5.10.0-207.0.0.116.oe2203sp3.x86_64.rpm"
]
},
"package": {
"ecosystem": "openEuler:22.03-LTS-SP3",
"name": "kernel",
"purl": "pkg:rpm/openEuler/kernel\u0026distro=openEuler-22.03-LTS-SP3"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "5.10.0-207.0.0.116.oe2203sp3"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"severity": "Medium"
},
"details": "The Linux Kernel, the operating system core itself.\r\n\r\nSecurity Fix(es):\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nnet/mlx5e: Fix use-after-free of encap entry in neigh update handler\r\n\r\nFunction mlx5e_rep_neigh_update() wasn\u0026apos;t updated to accommodate rtnl lock\nremoval from TC filter update path and properly handle concurrent encap\nentry insertion/deletion which can lead to following use-after-free:\r\n\r\n [23827.464923] ==================================================================\n [23827.469446] BUG: KASAN: use-after-free in mlx5e_encap_take+0x72/0x140 [mlx5_core]\n [23827.470971] Read of size 4 at addr ffff8881d132228c by task kworker/u20:6/21635\n [23827.472251]\n [23827.472615] CPU: 9 PID: 21635 Comm: kworker/u20:6 Not tainted 5.13.0-rc3+ #5\n [23827.473788] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n [23827.475639] Workqueue: mlx5e mlx5e_rep_neigh_update [mlx5_core]\n [23827.476731] Call Trace:\n [23827.477260] dump_stack+0xbb/0x107\n [23827.477906] print_address_description.constprop.0+0x18/0x140\n [23827.478896] ? mlx5e_encap_take+0x72/0x140 [mlx5_core]\n [23827.479879] ? mlx5e_encap_take+0x72/0x140 [mlx5_core]\n [23827.480905] kasan_report.cold+0x7c/0xd8\n [23827.481701] ? mlx5e_encap_take+0x72/0x140 [mlx5_core]\n [23827.482744] kasan_check_range+0x145/0x1a0\n [23827.493112] mlx5e_encap_take+0x72/0x140 [mlx5_core]\n [23827.494054] ? mlx5e_tc_tun_encap_info_equal_generic+0x140/0x140 [mlx5_core]\n [23827.495296] mlx5e_rep_neigh_update+0x41e/0x5e0 [mlx5_core]\n [23827.496338] ? mlx5e_rep_neigh_entry_release+0xb80/0xb80 [mlx5_core]\n [23827.497486] ? read_word_at_a_time+0xe/0x20\n [23827.498250] ? strscpy+0xa0/0x2a0\n [23827.498889] process_one_work+0x8ac/0x14e0\n [23827.499638] ? lockdep_hardirqs_on_prepare+0x400/0x400\n [23827.500537] ? pwq_dec_nr_in_flight+0x2c0/0x2c0\n [23827.501359] ? rwlock_bug.part.0+0x90/0x90\n [23827.502116] worker_thread+0x53b/0x1220\n [23827.502831] ? process_one_work+0x14e0/0x14e0\n [23827.503627] kthread+0x328/0x3f0\n [23827.504254] ? _raw_spin_unlock_irq+0x24/0x40\n [23827.505065] ? __kthread_bind_mask+0x90/0x90\n [23827.505912] ret_from_fork+0x1f/0x30\n [23827.506621]\n [23827.506987] Allocated by task 28248:\n [23827.507694] kasan_save_stack+0x1b/0x40\n [23827.508476] __kasan_kmalloc+0x7c/0x90\n [23827.509197] mlx5e_attach_encap+0xde1/0x1d40 [mlx5_core]\n [23827.510194] mlx5e_tc_add_fdb_flow+0x397/0xc40 [mlx5_core]\n [23827.511218] __mlx5e_add_fdb_flow+0x519/0xb30 [mlx5_core]\n [23827.512234] mlx5e_configure_flower+0x191c/0x4870 [mlx5_core]\n [23827.513298] tc_setup_cb_add+0x1d5/0x420\n [23827.514023] fl_hw_replace_filter+0x382/0x6a0 [cls_flower]\n [23827.514975] fl_change+0x2ceb/0x4a51 [cls_flower]\n [23827.515821] tc_new_tfilter+0x89a/0x2070\n [23827.516548] rtnetlink_rcv_msg+0x644/0x8c0\n [23827.517300] netlink_rcv_skb+0x11d/0x340\n [23827.518021] netlink_unicast+0x42b/0x700\n [23827.518742] netlink_sendmsg+0x743/0xc20\n [23827.519467] sock_sendmsg+0xb2/0xe0\n [23827.520131] ____sys_sendmsg+0x590/0x770\n [23827.520851] ___sys_sendmsg+0xd8/0x160\n [23827.521552] __sys_sendmsg+0xb7/0x140\n [23827.522238] do_syscall_64+0x3a/0x70\n [23827.522907] entry_SYSCALL_64_after_hwframe+0x44/0xae\n [23827.523797]\n [23827.524163] Freed by task 25948:\n [23827.524780] kasan_save_stack+0x1b/0x40\n [23827.525488] kasan_set_track+0x1c/0x30\n [23827.526187] kasan_set_free_info+0x20/0x30\n [23827.526968] __kasan_slab_free+0xed/0x130\n [23827.527709] slab_free_freelist_hook+0xcf/0x1d0\n [23827.528528] kmem_cache_free_bulk+0x33a/0x6e0\n [23827.529317] kfree_rcu_work+0x55f/0xb70\n [23827.530024] process_one_work+0x8ac/0x14e0\n [23827.530770] worker_thread+0x53b/0x1220\n [23827.531480] kthread+0x328/0x3f0\n [23827.532114] ret_from_fork+0x1f/0x30\n [23827.532785]\n [23827.533147] Last potentially related work creation:\n [23827.534007] kasan_save_stack+0x1b/0x40\n [23827.534710] kasan_record_aux_stack+0xab/0xc0\n [23827.535492] kvfree_call_rcu+0x31/0x7b0\n [23827.536206] mlx5e_tc_del\n---truncated---(CVE-2021-47247)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nocteontx2-af: Fix possible null pointer dereference.\r\n\r\nThis patch fixes possible null pointer dereference in files\n\u0026quot;rvu_debugfs.c\u0026quot; and \u0026quot;rvu_nix.c\u0026quot;(CVE-2021-47484)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nnet: stmmac: Disable Tx queues when reconfiguring the interface\r\n\r\nThe Tx queues were not disabled in situations where the driver needed to\nstop the interface to apply a new configuration. This could result in a\nkernel panic when doing any of the 3 following actions:\n* reconfiguring the number of queues (ethtool -L)\n* reconfiguring the size of the ring buffers (ethtool -G)\n* installing/removing an XDP program (ip l set dev ethX xdp)\r\n\r\nPrevent the panic by making sure netif_tx_disable is called when stopping\nan interface.\r\n\r\nWithout this patch, the following kernel panic can be observed when doing\nany of the actions above:\r\n\r\nUnable to handle kernel paging request at virtual address ffff80001238d040\n[....]\n Call trace:\n dwmac4_set_addr+0x8/0x10\n dev_hard_start_xmit+0xe4/0x1ac\n sch_direct_xmit+0xe8/0x39c\n __dev_queue_xmit+0x3ec/0xaf0\n dev_queue_xmit+0x14/0x20\n[...]\n[ end trace 0000000000000002 ]---(CVE-2021-47558)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nice: Fix crash by keep old cfg when update TCs more than queues\r\n\r\nThere are problems if allocated queues less than Traffic Classes.\r\n\r\nCommit a632b2a4c920 (\u0026quot;ice: ethtool: Prohibit improper channel config\nfor DCB\u0026quot;) already disallow setting less queues than TCs.\r\n\r\nAnother case is if we first set less queues, and later update more TCs\nconfig due to LLDP, ice_vsi_cfg_tc() will failed but left dirty\nnum_txq/rxq and tc_cfg in vsi, that will cause invalid pointer access.\r\n\r\n[ 95.968089] ice 0000:3b:00.1: More TCs defined than queues/rings allocated.\n[ 95.968092] ice 0000:3b:00.1: Trying to use more Rx queues (8), than were allocated (1)!\n[ 95.968093] ice 0000:3b:00.1: Failed to config TC for VSI index: 0\n[ 95.969621] general protection fault: 0000 [#1] SMP NOPTI\n[ 95.969705] CPU: 1 PID: 58405 Comm: lldpad Kdump: loaded Tainted: G U W O --------- -t - 4.18.0 #1\n[ 95.969867] Hardware name: O.E.M/BC11SPSCB10, BIOS 8.23 12/30/2021\n[ 95.969992] RIP: 0010:devm_kmalloc+0xa/0x60\n[ 95.970052] Code: 5c ff ff ff 31 c0 5b 5d 41 5c c3 b8 f4 ff ff ff eb f4 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 89 d1 \u0026lt;8b\u0026gt; 97 60 02 00 00 48 8d 7e 18 48 39 f7 72 3f 55 89 ce 53 48 8b 4c\n[ 95.970344] RSP: 0018:ffffc9003f553888 EFLAGS: 00010206\n[ 95.970425] RAX: dead000000000200 RBX: ffffea003c425b00 RCX: 00000000006080c0\n[ 95.970536] RDX: 00000000006080c0 RSI: 0000000000000200 RDI: dead000000000200\n[ 95.970648] RBP: dead000000000200 R08: 00000000000463c0 R09: ffff888ffa900000\n[ 95.970760] R10: 0000000000000000 R11: 0000000000000002 R12: ffff888ff6b40100\n[ 95.970870] R13: ffff888ff6a55018 R14: 0000000000000000 R15: ffff888ff6a55460\n[ 95.970981] FS: 00007f51b7d24700(0000) GS:ffff88903ee80000(0000) knlGS:0000000000000000\n[ 95.971108] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 95.971197] CR2: 00007fac5410d710 CR3: 0000000f2c1de002 CR4: 00000000007606e0\n[ 95.971309] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 95.971419] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[ 95.971530] PKRU: 55555554\n[ 95.971573] Call Trace:\n[ 95.971622] ice_setup_rx_ring+0x39/0x110 [ice]\n[ 95.971695] ice_vsi_setup_rx_rings+0x54/0x90 [ice]\n[ 95.971774] ice_vsi_open+0x25/0x120 [ice]\n[ 95.971843] ice_open_internal+0xb8/0x1f0 [ice]\n[ 95.971919] ice_ena_vsi+0x4f/0xd0 [ice]\n[ 95.971987] ice_dcb_ena_dis_vsi.constprop.5+0x29/0x90 [ice]\n[ 95.972082] ice_pf_dcb_cfg+0x29a/0x380 [ice]\n[ 95.972154] ice_dcbnl_setets+0x174/0x1b0 [ice]\n[ 95.972220] dcbnl_ieee_set+0x89/0x230\n[ 95.972279] ? dcbnl_ieee_del+0x150/0x150\n[ 95.972341] dcb_doit+0x124/0x1b0\n[ 95.972392] rtnetlink_rcv_msg+0x243/0x2f0\n[ 95.972457] ? dcb_doit+0x14d/0x1b0\n[ 95.972510] ? __kmalloc_node_track_caller+0x1d3/0x280\n[ 95.972591] ? rtnl_calcit.isra.31+0x100/0x100\n[ 95.972661] netlink_rcv_skb+0xcf/0xf0\n[ 95.972720] netlink_unicast+0x16d/0x220\n[ 95.972781] netlink_sendmsg+0x2ba/0x3a0\n[ 95.975891] sock_sendmsg+0x4c/0x50\n[ 95.979032] ___sys_sendmsg+0x2e4/0x300\n[ 95.982147] ? kmem_cache_alloc+0x13e/0x190\n[ 95.985242] ? __wake_up_common_lock+0x79/0x90\n[ 95.988338] ? __check_object_size+0xac/0x1b0\n[ 95.991440] ? _copy_to_user+0x22/0x30\n[ 95.994539] ? move_addr_to_user+0xbb/0xd0\n[ 95.997619] ? __sys_sendmsg+0x53/0x80\n[ 96.000664] __sys_sendmsg+0x53/0x80\n[ 96.003747] do_syscall_64+0x5b/0x1d0\n[ 96.006862] entry_SYSCALL_64_after_hwframe+0x65/0xca\r\n\r\nOnly update num_txq/rxq when passed check, and restore tc_cfg if setup\nqueue map failed.(CVE-2022-48652)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\npipe: wakeup wr_wait after setting max_usage\r\n\r\nCommit c73be61cede5 (\u0026quot;pipe: Add general notification queue support\u0026quot;) a\nregression was introduced that would lock up resized pipes under certain\nconditions. See the reproducer in [1].\r\n\r\nThe commit resizing the pipe ring size was moved to a different\nfunction, doing that moved the wakeup for pipe-\u0026gt;wr_wait before actually\nraising pipe-\u0026gt;max_usage. If a pipe was full before the resize occured it\nwould result in the wakeup never actually triggering pipe_write.\r\n\r\nSet @max_usage and @nr_accounted before waking writers if this isn\u0026apos;t a\nwatch queue.\r\n\r\n[Christian Brauner \u0026lt;brauner@kernel.org\u0026gt;: rewrite to account for watch queues](CVE-2023-52672)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nALSA: scarlett2: Add missing error checks to *_ctl_get()\r\n\r\nThe *_ctl_get() functions which call scarlett2_update_*() were not\nchecking the return value. Fix to check the return value and pass to\nthe caller.(CVE-2023-52680)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\npowerpc/powernv: Add a null pointer check in opal_event_init()\r\n\r\nkasprintf() returns a pointer to dynamically allocated memory\nwhich can be NULL upon failure.(CVE-2023-52686)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nACPI: video: check for error while searching for backlight device parent\r\n\r\nIf acpi_get_parent() called in acpi_video_dev_register_backlight()\nfails, for example, because acpi_ut_acquire_mutex() fails inside\nacpi_get_parent), this can lead to incorrect (uninitialized)\nacpi_parent handle being passed to acpi_get_pci_dev() for detecting\nthe parent pci device.\r\n\r\nCheck acpi_get_parent() result and set parent device only in case of success.\r\n\r\nFound by Linux Verification Center (linuxtesting.org) with SVACE.(CVE-2023-52693)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nceph: blocklist the kclient when receiving corrupted snap trace\r\n\r\nWhen received corrupted snap trace we don\u0026apos;t know what exactly has\nhappened in MDS side. And we shouldn\u0026apos;t continue IOs and metadatas\naccess to MDS, which may corrupt or get incorrect contents.\r\n\r\nThis patch will just block all the further IO/MDS requests\nimmediately and then evict the kclient itself.\r\n\r\nThe reason why we still need to evict the kclient just after\nblocking all the further IOs is that the MDS could revoke the caps\nfaster.(CVE-2023-52732)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nvirtio-blk: fix implicit overflow on virtio_max_dma_size\r\n\r\nThe following codes have an implicit conversion from size_t to u32:\n(u32)max_size = (size_t)virtio_max_dma_size(vdev);\r\n\r\nThis may lead overflow, Ex (size_t)4G -\u0026gt; (u32)0. Once\nvirtio_max_dma_size() has a larger size than U32_MAX, use U32_MAX\ninstead.(CVE-2023-52762)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nnet/smc: avoid data corruption caused by decline\r\n\r\nWe found a data corruption issue during testing of SMC-R on Redis\napplications.\r\n\r\nThe benchmark has a low probability of reporting a strange error as\nshown below.\r\n\r\n\u0026quot;Error: Protocol error, got \u0026quot;\\xe2\u0026quot; as reply type byte\u0026quot;\r\n\r\nFinally, we found that the retrieved error data was as follows:\r\n\r\n0xE2 0xD4 0xC3 0xD9 0x04 0x00 0x2C 0x20 0xA6 0x56 0x00 0x16 0x3E 0x0C\n0xCB 0x04 0x02 0x01 0x00 0x00 0x20 0x00 0x00 0x00 0x00 0x00 0x00 0x00\n0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0xE2\r\n\r\nIt is quite obvious that this is a SMC DECLINE message, which means that\nthe applications received SMC protocol message.\nWe found that this was caused by the following situations:\r\n\r\nclient server\n \u00a6 clc proposal\n -------------\u0026gt;\n \u00a6 clc accept\n \u0026lt;-------------\n \u00a6 clc confirm\n -------------\u0026gt;\nwait llc confirm\n\t\t\tsend llc confirm\n \u00a6failed llc confirm\n \u00a6 x------\n(after 2s)timeout\n wait llc confirm rsp\r\n\r\nwait decline\r\n\r\n(after 1s) timeout\n (after 2s) timeout\n \u00a6 decline\n --------------\u0026gt;\n \u00a6 decline\n \u0026lt;--------------\r\n\r\nAs a result, a decline message was sent in the implementation, and this\nmessage was read from TCP by the already-fallback connection.\r\n\r\nThis patch double the client timeout as 2x of the server value,\nWith this simple change, the Decline messages should never cross or\ncollide (during Confirm link timeout).\r\n\r\nThis issue requires an immediate solution, since the protocol updates\ninvolve a more long-term solution.(CVE-2023-52775)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nSUNRPC: Fix RPC client cleaned up the freed pipefs dentries\r\n\r\nRPC client pipefs dentries cleanup is in separated rpc_remove_pipedir()\nworkqueue,which takes care about pipefs superblock locking.\nIn some special scenarios, when kernel frees the pipefs sb of the\ncurrent client and immediately alloctes a new pipefs sb,\nrpc_remove_pipedir function would misjudge the existence of pipefs\nsb which is not the one it used to hold. As a result,\nthe rpc_remove_pipedir would clean the released freed pipefs dentries.\r\n\r\nTo fix this issue, rpc_remove_pipedir should check whether the\ncurrent pipefs sb is consistent with the original pipefs sb.\r\n\r\nThis error can be catched by KASAN:\n=========================================================\n[ 250.497700] BUG: KASAN: slab-use-after-free in dget_parent+0x195/0x200\n[ 250.498315] Read of size 4 at addr ffff88800a2ab804 by task kworker/0:18/106503\n[ 250.500549] Workqueue: events rpc_free_client_work\n[ 250.501001] Call Trace:\n[ 250.502880] kasan_report+0xb6/0xf0\n[ 250.503209] ? dget_parent+0x195/0x200\n[ 250.503561] dget_parent+0x195/0x200\n[ 250.503897] ? __pfx_rpc_clntdir_depopulate+0x10/0x10\n[ 250.504384] rpc_rmdir_depopulate+0x1b/0x90\n[ 250.504781] rpc_remove_client_dir+0xf5/0x150\n[ 250.505195] rpc_free_client_work+0xe4/0x230\n[ 250.505598] process_one_work+0x8ee/0x13b0\n...\n[ 22.039056] Allocated by task 244:\n[ 22.039390] kasan_save_stack+0x22/0x50\n[ 22.039758] kasan_set_track+0x25/0x30\n[ 22.040109] __kasan_slab_alloc+0x59/0x70\n[ 22.040487] kmem_cache_alloc_lru+0xf0/0x240\n[ 22.040889] __d_alloc+0x31/0x8e0\n[ 22.041207] d_alloc+0x44/0x1f0\n[ 22.041514] __rpc_lookup_create_exclusive+0x11c/0x140\n[ 22.041987] rpc_mkdir_populate.constprop.0+0x5f/0x110\n[ 22.042459] rpc_create_client_dir+0x34/0x150\n[ 22.042874] rpc_setup_pipedir_sb+0x102/0x1c0\n[ 22.043284] rpc_client_register+0x136/0x4e0\n[ 22.043689] rpc_new_client+0x911/0x1020\n[ 22.044057] rpc_create_xprt+0xcb/0x370\n[ 22.044417] rpc_create+0x36b/0x6c0\n...\n[ 22.049524] Freed by task 0:\n[ 22.049803] kasan_save_stack+0x22/0x50\n[ 22.050165] kasan_set_track+0x25/0x30\n[ 22.050520] kasan_save_free_info+0x2b/0x50\n[ 22.050921] __kasan_slab_free+0x10e/0x1a0\n[ 22.051306] kmem_cache_free+0xa5/0x390\n[ 22.051667] rcu_core+0x62c/0x1930\n[ 22.051995] __do_softirq+0x165/0x52a\n[ 22.052347]\n[ 22.052503] Last potentially related work creation:\n[ 22.052952] kasan_save_stack+0x22/0x50\n[ 22.053313] __kasan_record_aux_stack+0x8e/0xa0\n[ 22.053739] __call_rcu_common.constprop.0+0x6b/0x8b0\n[ 22.054209] dentry_free+0xb2/0x140\n[ 22.054540] __dentry_kill+0x3be/0x540\n[ 22.054900] shrink_dentry_list+0x199/0x510\n[ 22.055293] shrink_dcache_parent+0x190/0x240\n[ 22.055703] do_one_tree+0x11/0x40\n[ 22.056028] shrink_dcache_for_umount+0x61/0x140\n[ 22.056461] generic_shutdown_super+0x70/0x590\n[ 22.056879] kill_anon_super+0x3a/0x60\n[ 22.057234] rpc_kill_sb+0x121/0x200(CVE-2023-52803)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nfs/jfs: Add check for negative db_l2nbperpage\r\n\r\nl2nbperpage is log2(number of blks per page), and the minimum legal\nvalue should be 0, not negative.\r\n\r\nIn the case of l2nbperpage being negative, an error will occur\nwhen subsequently used as shift exponent.\r\n\r\nSyzbot reported this bug:\r\n\r\nUBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:799:12\nshift exponent -16777216 is negative(CVE-2023-52810)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ntty: n_gsm: require CAP_NET_ADMIN to attach N_GSM0710 ldisc\r\n\r\nAny unprivileged user can attach N_GSM0710 ldisc, but it requires\nCAP_NET_ADMIN to create a GSM network anyway.\r\n\r\nRequire initial namespace CAP_NET_ADMIN to do that.(CVE-2023-52880)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ntcp: do not accept ACK of bytes we never sent\r\n\r\nThis patch is based on a detailed report and ideas from Yepeng Pan\nand Christian Rossow.\r\n\r\nACK seq validation is currently following RFC 5961 5.2 guidelines:\r\n\r\n The ACK value is considered acceptable only if\n it is in the range of ((SND.UNA - MAX.SND.WND) \u0026lt;= SEG.ACK \u0026lt;=\n SND.NXT). All incoming segments whose ACK value doesn\u0026apos;t satisfy the\n above condition MUST be discarded and an ACK sent back. It needs to\n be noted that RFC 793 on page 72 (fifth check) says: \u0026quot;If the ACK is a\n duplicate (SEG.ACK \u0026lt; SND.UNA), it can be ignored. If the ACK\n acknowledges something not yet sent (SEG.ACK \u0026gt; SND.NXT) then send an\n ACK, drop the segment, and return\u0026quot;. The \u0026quot;ignored\u0026quot; above implies that\n the processing of the incoming data segment continues, which means\n the ACK value is treated as acceptable. This mitigation makes the\n ACK check more stringent since any ACK \u0026lt; SND.UNA wouldn\u0026apos;t be\n accepted, instead only ACKs that are in the range ((SND.UNA -\n MAX.SND.WND) \u0026lt;= SEG.ACK \u0026lt;= SND.NXT) get through.\r\n\r\nThis can be refined for new (and possibly spoofed) flows,\nby not accepting ACK for bytes that were never sent.\r\n\r\nThis greatly improves TCP security at a little cost.\r\n\r\nI added a Fixes: tag to make sure this patch will reach stable trees,\neven if the \u0026apos;blamed\u0026apos; patch was adhering to the RFC.\r\n\r\ntp-\u0026gt;bytes_acked was added in linux-4.2\r\n\r\nFollowing packetdrill test (courtesy of Yepeng Pan) shows\nthe issue at hand:\r\n\r\n0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3\n+0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0\n+0 bind(3, ..., ...) = 0\n+0 listen(3, 1024) = 0\r\n\r\n// ---------------- Handshake ------------------- //\r\n\r\n// when window scale is set to 14 the window size can be extended to\n// 65535 * (2^14) = 1073725440. Linux would accept an ACK packet\n// with ack number in (Server_ISN+1-1073725440. Server_ISN+1)\n// ,though this ack number acknowledges some data never\n// sent by the server.\r\n\r\n+0 \u0026lt; S 0:0(0) win 65535 \u0026lt;mss 1400,nop,wscale 14\u0026gt;\n+0 \u0026gt; S. 0:0(0) ack 1 \u0026lt;...\u0026gt;\n+0 \u0026lt; . 1:1(0) ack 1 win 65535\n+0 accept(3, ..., ...) = 4\r\n\r\n// For the established connection, we send an ACK packet,\n// the ack packet uses ack number 1 - 1073725300 + 2^32,\n// where 2^32 is used to wrap around.\n// Note: we used 1073725300 instead of 1073725440 to avoid possible\n// edge cases.\n// 1 - 1073725300 + 2^32 = 3221241997\r\n\r\n// Oops, old kernels happily accept this packet.\n+0 \u0026lt; . 1:1001(1000) ack 3221241997 win 65535\r\n\r\n// After the kernel fix the following will be replaced by a challenge ACK,\n// and prior malicious frame would be dropped.\n+0 \u0026gt; . 1:1(0) ack 1001(CVE-2023-52881)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nnetfilter: nf_tables: set dormant flag on hook register failure\r\n\r\nWe need to set the dormant flag again if we fail to register\nthe hooks.\r\n\r\nDuring memory pressure hook registration can fail and we end up\nwith a table marked as active but no registered hooks.\r\n\r\nOn table/base chain deletion, nf_tables will attempt to unregister\nthe hook again which yields a warn splat from the nftables core.(CVE-2024-26835)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nBluetooth: hci_core: Fix possible buffer overflow\r\n\r\nstruct hci_dev_info has a fixed size name[8] field so in the event that\nhdev-\u0026gt;name is bigger than that strcpy would attempt to write past its\nsize, so this fixes this problem by switching to use strscpy.(CVE-2024-26889)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nxen-netfront: Add missing skb_mark_for_recycle\r\n\r\nNotice that skb_mark_for_recycle() is introduced later than fixes tag in\ncommit 6a5bcd84e886 (\u0026quot;page_pool: Allow drivers to hint on SKB recycling\u0026quot;).\r\n\r\nIt is believed that fixes tag were missing a call to page_pool_release_page()\nbetween v5.9 to v5.14, after which is should have used skb_mark_for_recycle().\nSince v6.6 the call page_pool_release_page() were removed (in\ncommit 535b9c61bdef (\u0026quot;net: page_pool: hide page_pool_release_page()\u0026quot;)\nand remaining callers converted (in commit 6bfef2ec0172 (\u0026quot;Merge branch\n\u0026apos;net-page_pool-remove-page_pool_release_page\u0026apos;\u0026quot;)).\r\n\r\nThis leak became visible in v6.8 via commit dba1b8a7ab68 (\u0026quot;mm/page_pool: catch\npage_pool memory leaks\u0026quot;).(CVE-2024-27393)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nphonet/pep: fix racy skb_queue_empty() use\r\n\r\nThe receive queues are protected by their respective spin-lock, not\nthe socket lock. This could lead to skb_peek() unexpectedly\nreturning NULL or a pointer to an already dequeued socket buffer.(CVE-2024-27402)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ndmaengine: dw-edma: eDMA: Add sync read before starting the DMA transfer in remote setup\r\n\r\nThe Linked list element and pointer are not stored in the same memory as\nthe eDMA controller register. If the doorbell register is toggled before\nthe full write of the linked list a race condition error will occur.\nIn remote setup we can only use a readl to the memory to assure the full\nwrite has occurred.(CVE-2024-27408)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nusb: typec: altmodes/displayport: create sysfs nodes as driver\u0026apos;s default device attribute group\r\n\r\nThe DisplayPort driver\u0026apos;s sysfs nodes may be present to the userspace before\ntypec_altmode_set_drvdata() completes in dp_altmode_probe. This means that\na sysfs read can trigger a NULL pointer error by deferencing dp-\u0026gt;hpd in\nhpd_show or dp-\u0026gt;lock in pin_assignment_show, as dev_get_drvdata() returns\nNULL in those cases.\r\n\r\nRemove manual sysfs node creation in favor of adding attribute group as\ndefault for devices bound to the driver. The ATTRIBUTE_GROUPS() macro is\nnot used here otherwise the path to the sysfs nodes is no longer compliant\nwith the ABI.(CVE-2024-35790)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nPCI/PM: Drain runtime-idle callbacks before driver removal\r\n\r\nA race condition between the .runtime_idle() callback and the .remove()\ncallback in the rtsx_pcr PCI driver leads to a kernel crash due to an\nunhandled page fault [1].\r\n\r\nThe problem is that rtsx_pci_runtime_idle() is not expected to be running\nafter pm_runtime_get_sync() has been called, but the latter doesn\u0026apos;t really\nguarantee that. It only guarantees that the suspend and resume callbacks\nwill not be running when it returns.\r\n\r\nHowever, if a .runtime_idle() callback is already running when\npm_runtime_get_sync() is called, the latter will notice that the runtime PM\nstatus of the device is RPM_ACTIVE and it will return right away without\nwaiting for the former to complete. In fact, it cannot wait for\n.runtime_idle() to complete because it may be called from that callback (it\narguably does not make much sense to do that, but it is not strictly\nprohibited).\r\n\r\nThus in general, whoever is providing a .runtime_idle() callback needs\nto protect it from running in parallel with whatever code runs after\npm_runtime_get_sync(). [Note that .runtime_idle() will not start after\npm_runtime_get_sync() has returned, but it may continue running then if it\nhas started earlier.]\r\n\r\nOne way to address that race condition is to call pm_runtime_barrier()\nafter pm_runtime_get_sync() (not before it, because a nonzero value of the\nruntime PM usage counter is necessary to prevent runtime PM callbacks from\nbeing invoked) to wait for the .runtime_idle() callback to complete should\nit be running at that point. A suitable place for doing that is in\npci_device_remove() which calls pm_runtime_get_sync() before removing the\ndriver, so it may as well call pm_runtime_barrier() subsequently, which\nwill prevent the race in question from occurring, not just in the rtsx_pcr\ndriver, but in any PCI drivers providing .runtime_idle() callbacks.(CVE-2024-35809)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nwifi: brcmfmac: Fix use-after-free bug in brcmf_cfg80211_detach\r\n\r\nThis is the candidate patch of CVE-2023-47233 :\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-47233\r\n\r\nIn brcm80211 driver,it starts with the following invoking chain\nto start init a timeout worker:\r\n\r\n-\u0026gt;brcmf_usb_probe\n -\u0026gt;brcmf_usb_probe_cb\n -\u0026gt;brcmf_attach\n -\u0026gt;brcmf_bus_started\n -\u0026gt;brcmf_cfg80211_attach\n -\u0026gt;wl_init_priv\n -\u0026gt;brcmf_init_escan\n -\u0026gt;INIT_WORK(\u0026amp;cfg-\u0026gt;escan_timeout_work,\n\t\t brcmf_cfg80211_escan_timeout_worker);\r\n\r\nIf we disconnect the USB by hotplug, it will call\nbrcmf_usb_disconnect to make cleanup. The invoking chain is :\r\n\r\nbrcmf_usb_disconnect\n -\u0026gt;brcmf_usb_disconnect_cb\n -\u0026gt;brcmf_detach\n -\u0026gt;brcmf_cfg80211_detach\n -\u0026gt;kfree(cfg);\r\n\r\nWhile the timeout woker may still be running. This will cause\na use-after-free bug on cfg in brcmf_cfg80211_escan_timeout_worker.\r\n\r\nFix it by deleting the timer and canceling the worker in\nbrcmf_cfg80211_detach.\r\n\r\n[arend.vanspriel@broadcom.com: keep timer delete as is and cancel work just before free](CVE-2024-35811)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nmlxsw: spectrum_acl_tcam: Fix memory leak during rehash\r\n\r\nThe rehash delayed work migrates filters from one region to another.\nThis is done by iterating over all chunks (all the filters with the same\npriority) in the region and in each chunk iterating over all the\nfilters.\r\n\r\nIf the migration fails, the code tries to migrate the filters back to\nthe old region. However, the rollback itself can also fail in which case\nanother migration will be erroneously performed. Besides the fact that\nthis ping pong is not a very good idea, it also creates a problem.\r\n\r\nEach virtual chunk references two chunks: The currently used one\n(\u0026apos;vchunk-\u0026gt;chunk\u0026apos;) and a backup (\u0026apos;vchunk-\u0026gt;chunk2\u0026apos;). During migration the\nfirst holds the chunk we want to migrate filters to and the second holds\nthe chunk we are migrating filters from.\r\n\r\nThe code currently assumes - but does not verify - that the backup chunk\ndoes not exist (NULL) if the currently used chunk does not reference the\ntarget region. This assumption breaks when we are trying to rollback a\nrollback, resulting in the backup chunk being overwritten and leaked\n[1].\r\n\r\nFix by not rolling back a failed rollback and add a warning to avoid\nfuture cases.\r\n\r\n[1]\nWARNING: CPU: 5 PID: 1063 at lib/parman.c:291 parman_destroy+0x17/0x20\nModules linked in:\nCPU: 5 PID: 1063 Comm: kworker/5:11 Tainted: G W 6.9.0-rc2-custom-00784-gc6a05c468a0b #14\nHardware name: Mellanox Technologies Ltd. MSN3700/VMOD0005, BIOS 5.11 01/06/2019\nWorkqueue: mlxsw_core mlxsw_sp_acl_tcam_vregion_rehash_work\nRIP: 0010:parman_destroy+0x17/0x20\n[...]\nCall Trace:\n \u0026lt;TASK\u0026gt;\n mlxsw_sp_acl_atcam_region_fini+0x19/0x60\n mlxsw_sp_acl_tcam_region_destroy+0x49/0xf0\n mlxsw_sp_acl_tcam_vregion_rehash_work+0x1f1/0x470\n process_one_work+0x151/0x370\n worker_thread+0x2cb/0x3e0\n kthread+0xd0/0x100\n ret_from_fork+0x34/0x50\n ret_from_fork_asm+0x1a/0x30\n \u0026lt;/TASK\u0026gt;(CVE-2024-35853)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nmlxsw: spectrum_acl_tcam: Fix possible use-after-free during rehash\r\n\r\nThe rehash delayed work migrates filters from one region to another\naccording to the number of available credits.\r\n\r\nThe migrated from region is destroyed at the end of the work if the\nnumber of credits is non-negative as the assumption is that this is\nindicative of migration being complete. This assumption is incorrect as\na non-negative number of credits can also be the result of a failed\nmigration.\r\n\r\nThe destruction of a region that still has filters referencing it can\nresult in a use-after-free [1].\r\n\r\nFix by not destroying the region if migration failed.\r\n\r\n[1]\nBUG: KASAN: slab-use-after-free in mlxsw_sp_acl_ctcam_region_entry_remove+0x21d/0x230\nRead of size 8 at addr ffff8881735319e8 by task kworker/0:31/3858\r\n\r\nCPU: 0 PID: 3858 Comm: kworker/0:31 Tainted: G W 6.9.0-rc2-custom-00782-gf2275c2157d8 #5\nHardware name: Mellanox Technologies Ltd. MSN3700/VMOD0005, BIOS 5.11 01/06/2019\nWorkqueue: mlxsw_core mlxsw_sp_acl_tcam_vregion_rehash_work\nCall Trace:\n \u0026lt;TASK\u0026gt;\n dump_stack_lvl+0xc6/0x120\n print_report+0xce/0x670\n kasan_report+0xd7/0x110\n mlxsw_sp_acl_ctcam_region_entry_remove+0x21d/0x230\n mlxsw_sp_acl_ctcam_entry_del+0x2e/0x70\n mlxsw_sp_acl_atcam_entry_del+0x81/0x210\n mlxsw_sp_acl_tcam_vchunk_migrate_all+0x3cd/0xb50\n mlxsw_sp_acl_tcam_vregion_rehash_work+0x157/0x1300\n process_one_work+0x8eb/0x19b0\n worker_thread+0x6c9/0xf70\n kthread+0x2c9/0x3b0\n ret_from_fork+0x4d/0x80\n ret_from_fork_asm+0x1a/0x30\n \u0026lt;/TASK\u0026gt;\r\n\r\nAllocated by task 174:\n kasan_save_stack+0x33/0x60\n kasan_save_track+0x14/0x30\n __kasan_kmalloc+0x8f/0xa0\n __kmalloc+0x19c/0x360\n mlxsw_sp_acl_tcam_region_create+0xdf/0x9c0\n mlxsw_sp_acl_tcam_vregion_rehash_work+0x954/0x1300\n process_one_work+0x8eb/0x19b0\n worker_thread+0x6c9/0xf70\n kthread+0x2c9/0x3b0\n ret_from_fork+0x4d/0x80\n ret_from_fork_asm+0x1a/0x30\r\n\r\nFreed by task 7:\n kasan_save_stack+0x33/0x60\n kasan_save_track+0x14/0x30\n kasan_save_free_info+0x3b/0x60\n poison_slab_object+0x102/0x170\n __kasan_slab_free+0x14/0x30\n kfree+0xc1/0x290\n mlxsw_sp_acl_tcam_region_destroy+0x272/0x310\n mlxsw_sp_acl_tcam_vregion_rehash_work+0x731/0x1300\n process_one_work+0x8eb/0x19b0\n worker_thread+0x6c9/0xf70\n kthread+0x2c9/0x3b0\n ret_from_fork+0x4d/0x80\n ret_from_fork_asm+0x1a/0x30(CVE-2024-35854)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nriscv: process: Fix kernel gp leakage\r\n\r\nchildregs represents the registers which are active for the new thread\nin user context. For a kernel thread, childregs-\u0026gt;gp is never used since\nthe kernel gp is not touched by switch_to. For a user mode helper, the\ngp value can be observed in user space after execve or possibly by other\nmeans.\r\n\r\n[From the email thread]\r\n\r\nThe /* Kernel thread */ comment is somewhat inaccurate in that it is also used\nfor user_mode_helper threads, which exec a user process, e.g. /sbin/init or\nwhen /proc/sys/kernel/core_pattern is a pipe. Such threads do not have\nPF_KTHREAD set and are valid targets for ptrace etc. even before they exec.\r\n\r\nchildregs is the *user* context during syscall execution and it is observable\nfrom userspace in at least five ways:\r\n\r\n1. kernel_execve does not currently clear integer registers, so the starting\n register state for PID 1 and other user processes started by the kernel has\n sp = user stack, gp = kernel __global_pointer$, all other integer registers\n zeroed by the memset in the patch comment.\r\n\r\n This is a bug in its own right, but I\u0026apos;m unwilling to bet that it is the only\n way to exploit the issue addressed by this patch.\r\n\r\n2. ptrace(PTRACE_GETREGSET): you can PTRACE_ATTACH to a user_mode_helper thread\n before it execs, but ptrace requires SIGSTOP to be delivered which can only\n happen at user/kernel boundaries.\r\n\r\n3. /proc/*/task/*/syscall: this is perfectly happy to read pt_regs for\n user_mode_helpers before the exec completes, but gp is not one of the\n registers it returns.\r\n\r\n4. PERF_SAMPLE_REGS_USER: LOCKDOWN_PERF normally prevents access to kernel\n addresses via PERF_SAMPLE_REGS_INTR, but due to this bug kernel addresses\n are also exposed via PERF_SAMPLE_REGS_USER which is permitted under\n LOCKDOWN_PERF. I have not attempted to write exploit code.\r\n\r\n5. Much of the tracing infrastructure allows access to user registers. I have\n not attempted to determine which forms of tracing allow access to user\n registers without already allowing access to kernel registers.(CVE-2024-35871)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nerspan: make sure erspan_base_hdr is present in skb-\u0026gt;head\r\n\r\nsyzbot reported a problem in ip6erspan_rcv() [1]\r\n\r\nIssue is that ip6erspan_rcv() (and erspan_rcv()) no longer make\nsure erspan_base_hdr is present in skb linear part (skb-\u0026gt;head)\nbefore getting @ver field from it.\r\n\r\nAdd the missing pskb_may_pull() calls.\r\n\r\nv2: Reload iph pointer in erspan_rcv() after pskb_may_pull()\n because skb-\u0026gt;head might have changed.\r\n\r\n[1]\r\n\r\n BUG: KMSAN: uninit-value in pskb_may_pull_reason include/linux/skbuff.h:2742 [inline]\n BUG: KMSAN: uninit-value in pskb_may_pull include/linux/skbuff.h:2756 [inline]\n BUG: KMSAN: uninit-value in ip6erspan_rcv net/ipv6/ip6_gre.c:541 [inline]\n BUG: KMSAN: uninit-value in gre_rcv+0x11f8/0x1930 net/ipv6/ip6_gre.c:610\n pskb_may_pull_reason include/linux/skbuff.h:2742 [inline]\n pskb_may_pull include/linux/skbuff.h:2756 [inline]\n ip6erspan_rcv net/ipv6/ip6_gre.c:541 [inline]\n gre_rcv+0x11f8/0x1930 net/ipv6/ip6_gre.c:610\n ip6_protocol_deliver_rcu+0x1d4c/0x2ca0 net/ipv6/ip6_input.c:438\n ip6_input_finish net/ipv6/ip6_input.c:483 [inline]\n NF_HOOK include/linux/netfilter.h:314 [inline]\n ip6_input+0x15d/0x430 net/ipv6/ip6_input.c:492\n ip6_mc_input+0xa7e/0xc80 net/ipv6/ip6_input.c:586\n dst_input include/net/dst.h:460 [inline]\n ip6_rcv_finish+0x955/0x970 net/ipv6/ip6_input.c:79\n NF_HOOK include/linux/netfilter.h:314 [inline]\n ipv6_rcv+0xde/0x390 net/ipv6/ip6_input.c:310\n __netif_receive_skb_one_core net/core/dev.c:5538 [inline]\n __netif_receive_skb+0x1da/0xa00 net/core/dev.c:5652\n netif_receive_skb_internal net/core/dev.c:5738 [inline]\n netif_receive_skb+0x58/0x660 net/core/dev.c:5798\n tun_rx_batched+0x3ee/0x980 drivers/net/tun.c:1549\n tun_get_user+0x5566/0x69e0 drivers/net/tun.c:2002\n tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048\n call_write_iter include/linux/fs.h:2108 [inline]\n new_sync_write fs/read_write.c:497 [inline]\n vfs_write+0xb63/0x1520 fs/read_write.c:590\n ksys_write+0x20f/0x4c0 fs/read_write.c:643\n __do_sys_write fs/read_write.c:655 [inline]\n __se_sys_write fs/read_write.c:652 [inline]\n __x64_sys_write+0x93/0xe0 fs/read_write.c:652\n do_syscall_64+0xd5/0x1f0\n entry_SYSCALL_64_after_hwframe+0x6d/0x75\r\n\r\nUninit was created at:\n slab_post_alloc_hook mm/slub.c:3804 [inline]\n slab_alloc_node mm/slub.c:3845 [inline]\n kmem_cache_alloc_node+0x613/0xc50 mm/slub.c:3888\n kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:577\n __alloc_skb+0x35b/0x7a0 net/core/skbuff.c:668\n alloc_skb include/linux/skbuff.h:1318 [inline]\n alloc_skb_with_frags+0xc8/0xbf0 net/core/skbuff.c:6504\n sock_alloc_send_pskb+0xa81/0xbf0 net/core/sock.c:2795\n tun_alloc_skb drivers/net/tun.c:1525 [inline]\n tun_get_user+0x209a/0x69e0 drivers/net/tun.c:1846\n tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048\n call_write_iter include/linux/fs.h:2108 [inline]\n new_sync_write fs/read_write.c:497 [inline]\n vfs_write+0xb63/0x1520 fs/read_write.c:590\n ksys_write+0x20f/0x4c0 fs/read_write.c:643\n __do_sys_write fs/read_write.c:655 [inline]\n __se_sys_write fs/read_write.c:652 [inline]\n __x64_sys_write+0x93/0xe0 fs/read_write.c:652\n do_syscall_64+0xd5/0x1f0\n entry_SYSCALL_64_after_hwframe+0x6d/0x75\r\n\r\nCPU: 1 PID: 5045 Comm: syz-executor114 Not tainted 6.9.0-rc1-syzkaller-00021-g962490525cff #0(CVE-2024-35888)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nbpf, sockmap: Prevent lock inversion deadlock in map delete elem\r\n\r\nsyzkaller started using corpuses where a BPF tracing program deletes\nelements from a sockmap/sockhash map. Because BPF tracing programs can be\ninvoked from any interrupt context, locks taken during a map_delete_elem\noperation must be hardirq-safe. Otherwise a deadlock due to lock inversion\nis possible, as reported by lockdep:\r\n\r\n CPU0 CPU1\n ---- ----\n lock(\u0026amp;htab-\u0026gt;buckets[i].lock);\n local_irq_disable();\n lock(\u0026amp;host-\u0026gt;lock);\n lock(\u0026amp;htab-\u0026gt;buckets[i].lock);\n \u0026lt;Interrupt\u0026gt;\n lock(\u0026amp;host-\u0026gt;lock);\r\n\r\nLocks in sockmap are hardirq-unsafe by design. We expects elements to be\ndeleted from sockmap/sockhash only in task (normal) context with interrupts\nenabled, or in softirq context.\r\n\r\nDetect when map_delete_elem operation is invoked from a context which is\n_not_ hardirq-unsafe, that is interrupts are disabled, and bail out with an\nerror.\r\n\r\nNote that map updates are not affected by this issue. BPF verifier does not\nallow updating sockmap/sockhash from a BPF tracing program today.(CVE-2024-35895)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nnetfilter: validate user input for expected length\r\n\r\nI got multiple syzbot reports showing old bugs exposed\nby BPF after commit 20f2505fb436 (\u0026quot;bpf: Try to avoid kzalloc\nin cgroup/{s,g}etsockopt\u0026quot;)\r\n\r\nsetsockopt() @optlen argument should be taken into account\nbefore copying data.\r\n\r\n BUG: KASAN: slab-out-of-bounds in copy_from_sockptr_offset include/linux/sockptr.h:49 [inline]\n BUG: KASAN: slab-out-of-bounds in copy_from_sockptr include/linux/sockptr.h:55 [inline]\n BUG: KASAN: slab-out-of-bounds in do_replace net/ipv4/netfilter/ip_tables.c:1111 [inline]\n BUG: KASAN: slab-out-of-bounds in do_ipt_set_ctl+0x902/0x3dd0 net/ipv4/netfilter/ip_tables.c:1627\nRead of size 96 at addr ffff88802cd73da0 by task syz-executor.4/7238\r\n\r\nCPU: 1 PID: 7238 Comm: syz-executor.4 Not tainted 6.9.0-rc2-next-20240403-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024\nCall Trace:\n \u0026lt;TASK\u0026gt;\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114\n print_address_description mm/kasan/report.c:377 [inline]\n print_report+0x169/0x550 mm/kasan/report.c:488\n kasan_report+0x143/0x180 mm/kasan/report.c:601\n kasan_check_range+0x282/0x290 mm/kasan/generic.c:189\n __asan_memcpy+0x29/0x70 mm/kasan/shadow.c:105\n copy_from_sockptr_offset include/linux/sockptr.h:49 [inline]\n copy_from_sockptr include/linux/sockptr.h:55 [inline]\n do_replace net/ipv4/netfilter/ip_tables.c:1111 [inline]\n do_ipt_set_ctl+0x902/0x3dd0 net/ipv4/netfilter/ip_tables.c:1627\n nf_setsockopt+0x295/0x2c0 net/netfilter/nf_sockopt.c:101\n do_sock_setsockopt+0x3af/0x720 net/socket.c:2311\n __sys_setsockopt+0x1ae/0x250 net/socket.c:2334\n __do_sys_setsockopt net/socket.c:2343 [inline]\n __se_sys_setsockopt net/socket.c:2340 [inline]\n __x64_sys_setsockopt+0xb5/0xd0 net/socket.c:2340\n do_syscall_64+0xfb/0x240\n entry_SYSCALL_64_after_hwframe+0x72/0x7a\nRIP: 0033:0x7fd22067dde9\nCode: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u0026lt;48\u0026gt; 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007fd21f9ff0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036\nRAX: ffffffffffffffda RBX: 00007fd2207abf80 RCX: 00007fd22067dde9\nRDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000003\nRBP: 00007fd2206ca47a R08: 0000000000000001 R09: 0000000000000000\nR10: 0000000020000880 R11: 0000000000000246 R12: 0000000000000000\nR13: 000000000000000b R14: 00007fd2207abf80 R15: 00007ffd2d0170d8\n \u0026lt;/TASK\u0026gt;\r\n\r\nAllocated by task 7238:\n kasan_save_stack mm/kasan/common.c:47 [inline]\n kasan_save_track+0x3f/0x80 mm/kasan/common.c:68\n poison_kmalloc_redzone mm/kasan/common.c:370 [inline]\n __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:387\n kasan_kmalloc include/linux/kasan.h:211 [inline]\n __do_kmalloc_node mm/slub.c:4069 [inline]\n __kmalloc_noprof+0x200/0x410 mm/slub.c:4082\n kmalloc_noprof include/linux/slab.h:664 [inline]\n __cgroup_bpf_run_filter_setsockopt+0xd47/0x1050 kernel/bpf/cgroup.c:1869\n do_sock_setsockopt+0x6b4/0x720 net/socket.c:2293\n __sys_setsockopt+0x1ae/0x250 net/socket.c:2334\n __do_sys_setsockopt net/socket.c:2343 [inline]\n __se_sys_setsockopt net/socket.c:2340 [inline]\n __x64_sys_setsockopt+0xb5/0xd0 net/socket.c:2340\n do_syscall_64+0xfb/0x240\n entry_SYSCALL_64_after_hwframe+0x72/0x7a\r\n\r\nThe buggy address belongs to the object at ffff88802cd73da0\n which belongs to the cache kmalloc-8 of size 8\nThe buggy address is located 0 bytes inside of\n allocated 1-byte region [ffff88802cd73da0, ffff88802cd73da1)\r\n\r\nThe buggy address belongs to the physical page:\npage: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88802cd73020 pfn:0x2cd73\nflags: 0xfff80000000000(node=0|zone=1|lastcpupid=0xfff)\npage_type: 0xffffefff(slab)\nraw: 00fff80000000000 ffff888015041280 dead000000000100 dead000000000122\nraw: ffff88802cd73020 000000008080007f 00000001ffffefff 00\n---truncated---(CVE-2024-35896)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nbpf: Protect against int overflow for stack access size\r\n\r\nThis patch re-introduces protection against the size of access to stack\nmemory being negative; the access size can appear negative as a result\nof overflowing its signed int representation. This should not actually\nhappen, as there are other protections along the way, but we should\nprotect against it anyway. One code path was missing such protections\n(fixed in the previous patch in the series), causing out-of-bounds array\naccesses in check_stack_range_initialized(). This patch causes the\nverification of a program with such a non-sensical access size to fail.\r\n\r\nThis check used to exist in a more indirect way, but was inadvertendly\nremoved in a833a17aeac7.(CVE-2024-35905)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nusb: typec: ucsi: Limit read size on v1.2\r\n\r\nBetween UCSI 1.2 and UCSI 2.0, the size of the MESSAGE_IN region was\nincreased from 16 to 256. In order to avoid overflowing reads for older\nsystems, add a mechanism to use the read UCSI version to truncate read\nsizes on UCSI v1.2.(CVE-2024-35924)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nBluetooth: SCO: Fix not validating setsockopt user input\r\n\r\nsyzbot reported sco_sock_setsockopt() is copying data without\nchecking user input length.\r\n\r\nBUG: KASAN: slab-out-of-bounds in copy_from_sockptr_offset\ninclude/linux/sockptr.h:49 [inline]\nBUG: KASAN: slab-out-of-bounds in copy_from_sockptr\ninclude/linux/sockptr.h:55 [inline]\nBUG: KASAN: slab-out-of-bounds in sco_sock_setsockopt+0xc0b/0xf90\nnet/bluetooth/sco.c:893\nRead of size 4 at addr ffff88805f7b15a3 by task syz-executor.5/12578(CVE-2024-35967)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ngeneve: fix header validation in geneve[6]_xmit_skb\r\n\r\nsyzbot is able to trigger an uninit-value in geneve_xmit() [1]\r\n\r\nProblem : While most ip tunnel helpers (like ip_tunnel_get_dsfield())\nuses skb_protocol(skb, true), pskb_inet_may_pull() is only using\nskb-\u0026gt;protocol.\r\n\r\nIf anything else than ETH_P_IPV6 or ETH_P_IP is found in skb-\u0026gt;protocol,\npskb_inet_may_pull() does nothing at all.\r\n\r\nIf a vlan tag was provided by the caller (af_packet in the syzbot case),\nthe network header might not point to the correct location, and skb\nlinear part could be smaller than expected.\r\n\r\nAdd skb_vlan_inet_prepare() to perform a complete mac validation.\r\n\r\nUse this in geneve for the moment, I suspect we need to adopt this\nmore broadly.\r\n\r\nv4 - Jakub reported v3 broke l2_tos_ttl_inherit.sh selftest\n - Only call __vlan_get_protocol() for vlan types.\r\n\r\nv2,v3 - Addressed Sabrina comments on v1 and v2\r\n\r\n[1]\r\n\r\nBUG: KMSAN: uninit-value in geneve_xmit_skb drivers/net/geneve.c:910 [inline]\n BUG: KMSAN: uninit-value in geneve_xmit+0x302d/0x5420 drivers/net/geneve.c:1030\n geneve_xmit_skb drivers/net/geneve.c:910 [inline]\n geneve_xmit+0x302d/0x5420 drivers/net/geneve.c:1030\n __netdev_start_xmit include/linux/netdevice.h:4903 [inline]\n netdev_start_xmit include/linux/netdevice.h:4917 [inline]\n xmit_one net/core/dev.c:3531 [inline]\n dev_hard_start_xmit+0x247/0xa20 net/core/dev.c:3547\n __dev_queue_xmit+0x348d/0x52c0 net/core/dev.c:4335\n dev_queue_xmit include/linux/netdevice.h:3091 [inline]\n packet_xmit+0x9c/0x6c0 net/packet/af_packet.c:276\n packet_snd net/packet/af_packet.c:3081 [inline]\n packet_sendmsg+0x8bb0/0x9ef0 net/packet/af_packet.c:3113\n sock_sendmsg_nosec net/socket.c:730 [inline]\n __sock_sendmsg+0x30f/0x380 net/socket.c:745\n __sys_sendto+0x685/0x830 net/socket.c:2191\n __do_sys_sendto net/socket.c:2203 [inline]\n __se_sys_sendto net/socket.c:2199 [inline]\n __x64_sys_sendto+0x125/0x1d0 net/socket.c:2199\n do_syscall_64+0xd5/0x1f0\n entry_SYSCALL_64_after_hwframe+0x6d/0x75\r\n\r\nUninit was created at:\n slab_post_alloc_hook mm/slub.c:3804 [inline]\n slab_alloc_node mm/slub.c:3845 [inline]\n kmem_cache_alloc_node+0x613/0xc50 mm/slub.c:3888\n kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:577\n __alloc_skb+0x35b/0x7a0 net/core/skbuff.c:668\n alloc_skb include/linux/skbuff.h:1318 [inline]\n alloc_skb_with_frags+0xc8/0xbf0 net/core/skbuff.c:6504\n sock_alloc_send_pskb+0xa81/0xbf0 net/core/sock.c:2795\n packet_alloc_skb net/packet/af_packet.c:2930 [inline]\n packet_snd net/packet/af_packet.c:3024 [inline]\n packet_sendmsg+0x722d/0x9ef0 net/packet/af_packet.c:3113\n sock_sendmsg_nosec net/socket.c:730 [inline]\n __sock_sendmsg+0x30f/0x380 net/socket.c:745\n __sys_sendto+0x685/0x830 net/socket.c:2191\n __do_sys_sendto net/socket.c:2203 [inline]\n __se_sys_sendto net/socket.c:2199 [inline]\n __x64_sys_sendto+0x125/0x1d0 net/socket.c:2199\n do_syscall_64+0xd5/0x1f0\n entry_SYSCALL_64_after_hwframe+0x6d/0x75\r\n\r\nCPU: 0 PID: 5033 Comm: syz-executor346 Not tainted 6.9.0-rc1-syzkaller-00005-g928a87efa423 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024(CVE-2024-35973)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nbatman-adv: Avoid infinite loop trying to resize local TT\r\n\r\nIf the MTU of one of an attached interface becomes too small to transmit\nthe local translation table then it must be resized to fit inside all\nfragments (when enabled) or a single packet.\r\n\r\nBut if the MTU becomes too low to transmit even the header + the VLAN\nspecific part then the resizing of the local TT will never succeed. This\ncan for example happen when the usable space is 110 bytes and 11 VLANs are\non top of batman-adv. In this case, at least 116 byte would be needed.\nThere will just be an endless spam of\r\n\r\n batman_adv: batadv0: Forced to purge local tt entries to fit new maximum fragment MTU (110)\r\n\r\nin the log but the function will never finish. Problem here is that the\ntimeout will be halved all the time and will then stagnate at 0 and\ntherefore never be able to reduce the table even more.\r\n\r\nThere are other scenarios possible with a similar result. The number of\nBATADV_TT_CLIENT_NOPURGE entries in the local TT can for example be too\nhigh to fit inside a packet. Such a scenario can therefore happen also with\nonly a single VLAN + 7 non-purgable addresses - requiring at least 120\nbytes.\r\n\r\nWhile this should be handled proactively when:\r\n\r\n* interface with too low MTU is added\n* VLAN is added\n* non-purgeable local mac is added\n* MTU of an attached interface is reduced\n* fragmentation setting gets disabled (which most likely requires dropping\n attached interfaces)\r\n\r\nnot all of these scenarios can be prevented because batman-adv is only\nconsuming events without the the possibility to prevent these actions\n(non-purgable MAC address added, MTU of an attached interface is reduced).\nIt is therefore necessary to also make sure that the code is able to handle\nalso the situations when there were already incompatible system\nconfiguration are present.(CVE-2024-35982)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ni2c: smbus: fix NULL function pointer dereference\r\n\r\nBaruch reported an OOPS when using the designware controller as target\nonly. Target-only modes break the assumption of one transfer function\nalways being available. Fix this by always checking the pointer in\n__i2c_transfer.\r\n\r\n[wsa: dropped the simplification in core-smbus to avoid theoretical regressions](CVE-2024-35984)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nrtnetlink: Correct nested IFLA_VF_VLAN_LIST attribute validation\r\n\r\nEach attribute inside a nested IFLA_VF_VLAN_LIST is assumed to be a\nstruct ifla_vf_vlan_info so the size of such attribute needs to be at least\nof sizeof(struct ifla_vf_vlan_info) which is 14 bytes.\nThe current size validation in do_setvfinfo is against NLA_HDRLEN (4 bytes)\nwhich is less than sizeof(struct ifla_vf_vlan_info) so this validation\nis not enough and a too small attribute might be cast to a\nstruct ifla_vf_vlan_info, this might result in an out of bands\nread access when accessing the saved (casted) entry in ivvl.(CVE-2024-36017)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nmmc: sdhci-msm: pervent access to suspended controller\r\n\r\nGeneric sdhci code registers LED device and uses host-\u0026gt;runtime_suspended\nflag to protect access to it. The sdhci-msm driver doesn\u0026apos;t set this flag,\nwhich causes a crash when LED is accessed while controller is runtime\nsuspended. Fix this by setting the flag correctly.(CVE-2024-36029)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nnet: fix out-of-bounds access in ops_init\r\n\r\nnet_alloc_generic is called by net_alloc, which is called without any\nlocking. It reads max_gen_ptrs, which is changed under pernet_ops_rwsem. It\nis read twice, first to allocate an array, then to set s.len, which is\nlater used to limit the bounds of the array access.\r\n\r\nIt is possible that the array is allocated and another thread is\nregistering a new pernet ops, increments max_gen_ptrs, which is then used\nto set s.len with a larger than allocated length for the variable array.\r\n\r\nFix it by reading max_gen_ptrs only once in net_alloc_generic. If\nmax_gen_ptrs is later incremented, it will be caught in net_assign_generic.(CVE-2024-36883)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ntipc: fix UAF in error path\r\n\r\nSam Page (sam4k) working with Trend Micro Zero Day Initiative reported\na UAF in the tipc_buf_append() error path:\r\n\r\nBUG: KASAN: slab-use-after-free in kfree_skb_list_reason+0x47e/0x4c0\nlinux/net/core/skbuff.c:1183\nRead of size 8 at addr ffff88804d2a7c80 by task poc/8034\r\n\r\nCPU: 1 PID: 8034 Comm: poc Not tainted 6.8.2 #1\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS\n1.16.0-debian-1.16.0-5 04/01/2014\nCall Trace:\n \u0026lt;IRQ\u0026gt;\n __dump_stack linux/lib/dump_stack.c:88\n dump_stack_lvl+0xd9/0x1b0 linux/lib/dump_stack.c:106\n print_address_description linux/mm/kasan/report.c:377\n print_report+0xc4/0x620 linux/mm/kasan/report.c:488\n kasan_report+0xda/0x110 linux/mm/kasan/report.c:601\n kfree_skb_list_reason+0x47e/0x4c0 linux/net/core/skbuff.c:1183\n skb_release_data+0x5af/0x880 linux/net/core/skbuff.c:1026\n skb_release_all linux/net/core/skbuff.c:1094\n __kfree_skb linux/net/core/skbuff.c:1108\n kfree_skb_reason+0x12d/0x210 linux/net/core/skbuff.c:1144\n kfree_skb linux/./include/linux/skbuff.h:1244\n tipc_buf_append+0x425/0xb50 linux/net/tipc/msg.c:186\n tipc_link_input+0x224/0x7c0 linux/net/tipc/link.c:1324\n tipc_link_rcv+0x76e/0x2d70 linux/net/tipc/link.c:1824\n tipc_rcv+0x45f/0x10f0 linux/net/tipc/node.c:2159\n tipc_udp_recv+0x73b/0x8f0 linux/net/tipc/udp_media.c:390\n udp_queue_rcv_one_skb+0xad2/0x1850 linux/net/ipv4/udp.c:2108\n udp_queue_rcv_skb+0x131/0xb00 linux/net/ipv4/udp.c:2186\n udp_unicast_rcv_skb+0x165/0x3b0 linux/net/ipv4/udp.c:2346\n __udp4_lib_rcv+0x2594/0x3400 linux/net/ipv4/udp.c:2422\n ip_protocol_deliver_rcu+0x30c/0x4e0 linux/net/ipv4/ip_input.c:205\n ip_local_deliver_finish+0x2e4/0x520 linux/net/ipv4/ip_input.c:233\n NF_HOOK linux/./include/linux/netfilter.h:314\n NF_HOOK linux/./include/linux/netfilter.h:308\n ip_local_deliver+0x18e/0x1f0 linux/net/ipv4/ip_input.c:254\n dst_input linux/./include/net/dst.h:461\n ip_rcv_finish linux/net/ipv4/ip_input.c:449\n NF_HOOK linux/./include/linux/netfilter.h:314\n NF_HOOK linux/./include/linux/netfilter.h:308\n ip_rcv+0x2c5/0x5d0 linux/net/ipv4/ip_input.c:569\n __netif_receive_skb_one_core+0x199/0x1e0 linux/net/core/dev.c:5534\n __netif_receive_skb+0x1f/0x1c0 linux/net/core/dev.c:5648\n process_backlog+0x101/0x6b0 linux/net/core/dev.c:5976\n __napi_poll.constprop.0+0xba/0x550 linux/net/core/dev.c:6576\n napi_poll linux/net/core/dev.c:6645\n net_rx_action+0x95a/0xe90 linux/net/core/dev.c:6781\n __do_softirq+0x21f/0x8e7 linux/kernel/softirq.c:553\n do_softirq linux/kernel/softirq.c:454\n do_softirq+0xb2/0xf0 linux/kernel/softirq.c:441\n \u0026lt;/IRQ\u0026gt;\n \u0026lt;TASK\u0026gt;\n __local_bh_enable_ip+0x100/0x120 linux/kernel/softirq.c:381\n local_bh_enable linux/./include/linux/bottom_half.h:33\n rcu_read_unlock_bh linux/./include/linux/rcupdate.h:851\n __dev_queue_xmit+0x871/0x3ee0 linux/net/core/dev.c:4378\n dev_queue_xmit linux/./include/linux/netdevice.h:3169\n neigh_hh_output linux/./include/net/neighbour.h:526\n neigh_output linux/./include/net/neighbour.h:540\n ip_finish_output2+0x169f/0x2550 linux/net/ipv4/ip_output.c:235\n __ip_finish_output linux/net/ipv4/ip_output.c:313\n __ip_finish_output+0x49e/0x950 linux/net/ipv4/ip_output.c:295\n ip_finish_output+0x31/0x310 linux/net/ipv4/ip_output.c:323\n NF_HOOK_COND linux/./include/linux/netfilter.h:303\n ip_output+0x13b/0x2a0 linux/net/ipv4/ip_output.c:433\n dst_output linux/./include/net/dst.h:451\n ip_local_out linux/net/ipv4/ip_output.c:129\n ip_send_skb+0x3e5/0x560 linux/net/ipv4/ip_output.c:1492\n udp_send_skb+0x73f/0x1530 linux/net/ipv4/udp.c:963\n udp_sendmsg+0x1a36/0x2b40 linux/net/ipv4/udp.c:1250\n inet_sendmsg+0x105/0x140 linux/net/ipv4/af_inet.c:850\n sock_sendmsg_nosec linux/net/socket.c:730\n __sock_sendmsg linux/net/socket.c:745\n __sys_sendto+0x42c/0x4e0 linux/net/socket.c:2191\n __do_sys_sendto linux/net/socket.c:2203\n __se_sys_sendto linux/net/socket.c:2199\n __x64_sys_sendto+0xe0/0x1c0 linux/net/socket.c:2199\n do_syscall_x64 linux/arch/x86/entry/common.c:52\n do_syscall_\n---truncated---(CVE-2024-36886)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nmptcp: ensure snd_nxt is properly initialized on connect\r\n\r\nChristoph reported a splat hinting at a corrupted snd_una:\r\n\r\n WARNING: CPU: 1 PID: 38 at net/mptcp/protocol.c:1005 __mptcp_clean_una+0x4b3/0x620 net/mptcp/protocol.c:1005\n Modules linked in:\n CPU: 1 PID: 38 Comm: kworker/1:1 Not tainted 6.9.0-rc1-gbbeac67456c9 #59\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-2.el7 04/01/2014\n Workqueue: events mptcp_worker\n RIP: 0010:__mptcp_clean_una+0x4b3/0x620 net/mptcp/protocol.c:1005\n Code: be 06 01 00 00 bf 06 01 00 00 e8 a8 12 e7 fe e9 00 fe ff ff e8\n \t8e 1a e7 fe 0f b7 ab 3e 02 00 00 e9 d3 fd ff ff e8 7d 1a e7 fe\n \t\u0026lt;0f\u0026gt; 0b 4c 8b bb e0 05 00 00 e9 74 fc ff ff e8 6a 1a e7 fe 0f 0b e9\n RSP: 0018:ffffc9000013fd48 EFLAGS: 00010293\n RAX: 0000000000000000 RBX: ffff8881029bd280 RCX: ffffffff82382fe4\n RDX: ffff8881003cbd00 RSI: ffffffff823833c3 RDI: 0000000000000001\n RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000\n R10: 0000000000000000 R11: fefefefefefefeff R12: ffff888138ba8000\n R13: 0000000000000106 R14: ffff8881029bd908 R15: ffff888126560000\n FS: 0000000000000000(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 00007f604a5dae38 CR3: 0000000101dac002 CR4: 0000000000170ef0\n Call Trace:\n \u0026lt;TASK\u0026gt;\n __mptcp_clean_una_wakeup net/mptcp/protocol.c:1055 [inline]\n mptcp_clean_una_wakeup net/mptcp/protocol.c:1062 [inline]\n __mptcp_retrans+0x7f/0x7e0 net/mptcp/protocol.c:2615\n mptcp_worker+0x434/0x740 net/mptcp/protocol.c:2767\n process_one_work+0x1e0/0x560 kernel/workqueue.c:3254\n process_scheduled_works kernel/workqueue.c:3335 [inline]\n worker_thread+0x3c7/0x640 kernel/workqueue.c:3416\n kthread+0x121/0x170 kernel/kthread.c:388\n ret_from_fork+0x44/0x50 arch/x86/kernel/process.c:147\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243\n \u0026lt;/TASK\u0026gt;\r\n\r\nWhen fallback to TCP happens early on a client socket, snd_nxt\nis not yet initialized and any incoming ack will copy such value\ninto snd_una. If the mptcp worker (dumbly) tries mptcp-level\nre-injection after such ack, that would unconditionally trigger a send\nbuffer cleanup using \u0026apos;bad\u0026apos; snd_una values.\r\n\r\nWe could easily disable re-injection for fallback sockets, but such\ndumb behavior already helped catching a few subtle issues and a very\nlow to zero impact in practice.\r\n\r\nInstead address the issue always initializing snd_nxt (and write_seq,\nfor consistency) at connect time.(CVE-2024-36889)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ngpiolib: cdev: fix uninitialised kfifo\r\n\r\nIf a line is requested with debounce, and that results in debouncing\nin software, and the line is subsequently reconfigured to enable edge\ndetection then the allocation of the kfifo to contain edge events is\noverlooked. This results in events being written to and read from an\nuninitialised kfifo. Read events are returned to userspace.\r\n\r\nInitialise the kfifo in the case where the software debounce is\nalready active.(CVE-2024-36898)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ngpiolib: cdev: Fix use after free in lineinfo_changed_notify\r\n\r\nThe use-after-free issue occurs as follows: when the GPIO chip device file\nis being closed by invoking gpio_chrdev_release(), watched_lines is freed\nby bitmap_free(), but the unregistration of lineinfo_changed_nb notifier\nchain failed due to waiting write rwsem. Additionally, one of the GPIO\nchip\u0026apos;s lines is also in the release process and holds the notifier chain\u0026apos;s\nread rwsem. Consequently, a race condition leads to the use-after-free of\nwatched_lines.\r\n\r\nHere is the typical stack when issue happened:\r\n\r\n[free]\ngpio_chrdev_release()\n --\u0026gt; bitmap_free(cdev-\u0026gt;watched_lines) \u0026lt;-- freed\n --\u0026gt; blocking_notifier_chain_unregister()\n --\u0026gt; down_write(\u0026amp;nh-\u0026gt;rwsem) \u0026lt;-- waiting rwsem\n --\u0026gt; __down_write_common()\n --\u0026gt; rwsem_down_write_slowpath()\n --\u0026gt; schedule_preempt_disabled()\n --\u0026gt; schedule()\r\n\r\n[use]\nst54spi_gpio_dev_release()\n --\u0026gt; gpio_free()\n --\u0026gt; gpiod_free()\n --\u0026gt; gpiod_free_commit()\n --\u0026gt; gpiod_line_state_notify()\n --\u0026gt; blocking_notifier_call_chain()\n --\u0026gt; down_read(\u0026amp;nh-\u0026gt;rwsem); \u0026lt;-- held rwsem\n --\u0026gt; notifier_call_chain()\n --\u0026gt; lineinfo_changed_notify()\n --\u0026gt; test_bit(xxxx, cdev-\u0026gt;watched_lines) \u0026lt;-- use after free\r\n\r\nThe side effect of the use-after-free issue is that a GPIO line event is\nbeing generated for userspace where it shouldn\u0026apos;t. However, since the chrdev\nis being closed, userspace won\u0026apos;t have the chance to read that event anyway.\r\n\r\nTo fix the issue, call the bitmap_free() function after the unregistration\nof lineinfo_changed_nb notifier chain.(CVE-2024-36899)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nipv6: prevent NULL dereference in ip6_output()\r\n\r\nAccording to syzbot, there is a chance that ip6_dst_idev()\nreturns NULL in ip6_output(). Most places in IPv6 stack\ndeal with a NULL idev just fine, but not here.\r\n\r\nsyzbot reported:\r\n\r\ngeneral protection fault, probably for non-canonical address 0xdffffc00000000bc: 0000 [#1] PREEMPT SMP KASAN PTI\nKASAN: null-ptr-deref in range [0x00000000000005e0-0x00000000000005e7]\nCPU: 0 PID: 9775 Comm: syz-executor.4 Not tainted 6.9.0-rc5-syzkaller-00157-g6a30653b604a #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024\n RIP: 0010:ip6_output+0x231/0x3f0 net/ipv6/ip6_output.c:237\nCode: 3c 1e 00 49 89 df 74 08 4c 89 ef e8 19 58 db f7 48 8b 44 24 20 49 89 45 00 49 89 c5 48 8d 9d e0 05 00 00 48 89 d8 48 c1 e8 03 \u0026lt;42\u0026gt; 0f b6 04 38 84 c0 4c 8b 74 24 28 0f 85 61 01 00 00 8b 1b 31 ff\nRSP: 0018:ffffc9000927f0d8 EFLAGS: 00010202\nRAX: 00000000000000bc RBX: 00000000000005e0 RCX: 0000000000040000\nRDX: ffffc900131f9000 RSI: 0000000000004f47 RDI: 0000000000004f48\nRBP: 0000000000000000 R08: ffffffff8a1f0b9a R09: 1ffffffff1f51fad\nR10: dffffc0000000000 R11: fffffbfff1f51fae R12: ffff8880293ec8c0\nR13: ffff88805d7fc000 R14: 1ffff1100527d91a R15: dffffc0000000000\nFS: 00007f135c6856c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000000020000080 CR3: 0000000064096000 CR4: 00000000003506f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n \u0026lt;TASK\u0026gt;\n NF_HOOK include/linux/netfilter.h:314 [inline]\n ip6_xmit+0xefe/0x17f0 net/ipv6/ip6_output.c:358\n sctp_v6_xmit+0x9f2/0x13f0 net/sctp/ipv6.c:248\n sctp_packet_transmit+0x26ad/0x2ca0 net/sctp/output.c:653\n sctp_packet_singleton+0x22c/0x320 net/sctp/outqueue.c:783\n sctp_outq_flush_ctrl net/sctp/outqueue.c:914 [inline]\n sctp_outq_flush+0x6d5/0x3e20 net/sctp/outqueue.c:1212\n sctp_side_effects net/sctp/sm_sideeffect.c:1198 [inline]\n sctp_do_sm+0x59cc/0x60c0 net/sctp/sm_sideeffect.c:1169\n sctp_primitive_ASSOCIATE+0x95/0xc0 net/sctp/primitive.c:73\n __sctp_connect+0x9cd/0xe30 net/sctp/socket.c:1234\n sctp_connect net/sctp/socket.c:4819 [inline]\n sctp_inet_connect+0x149/0x1f0 net/sctp/socket.c:4834\n __sys_connect_file net/socket.c:2048 [inline]\n __sys_connect+0x2df/0x310 net/socket.c:2065\n __do_sys_connect net/socket.c:2075 [inline]\n __se_sys_connect net/socket.c:2072 [inline]\n __x64_sys_connect+0x7a/0x90 net/socket.c:2072\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f(CVE-2024-36901)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nipv6: fib6_rules: avoid possible NULL dereference in fib6_rule_action()\r\n\r\nsyzbot is able to trigger the following crash [1],\ncaused by unsafe ip6_dst_idev() use.\r\n\r\nIndeed ip6_dst_idev() can return NULL, and must always be checked.\r\n\r\n[1]\r\n\r\nOops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI\nKASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\nCPU: 0 PID: 31648 Comm: syz-executor.0 Not tainted 6.9.0-rc4-next-20240417-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024\n RIP: 0010:__fib6_rule_action net/ipv6/fib6_rules.c:237 [inline]\n RIP: 0010:fib6_rule_action+0x241/0x7b0 net/ipv6/fib6_rules.c:267\nCode: 02 00 00 49 8d 9f d8 00 00 00 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 f9 32 bf f7 48 8b 1b 48 89 d8 48 c1 e8 03 \u0026lt;42\u0026gt; 80 3c 20 00 74 08 48 89 df e8 e0 32 bf f7 4c 8b 03 48 89 ef 4c\nRSP: 0018:ffffc9000fc1f2f0 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: 0000000000000000 RCX: 1a772f98c8186700\nRDX: 0000000000000003 RSI: ffffffff8bcac4e0 RDI: ffffffff8c1f9760\nRBP: ffff8880673fb980 R08: ffffffff8fac15ef R09: 1ffffffff1f582bd\nR10: dffffc0000000000 R11: fffffbfff1f582be R12: dffffc0000000000\nR13: 0000000000000080 R14: ffff888076509000 R15: ffff88807a029a00\nFS: 00007f55e82ca6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000001b31d23000 CR3: 0000000022b66000 CR4: 00000000003506f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n \u0026lt;TASK\u0026gt;\n fib_rules_lookup+0x62c/0xdb0 net/core/fib_rules.c:317\n fib6_rule_lookup+0x1fd/0x790 net/ipv6/fib6_rules.c:108\n ip6_route_output_flags_noref net/ipv6/route.c:2637 [inline]\n ip6_route_output_flags+0x38e/0x610 net/ipv6/route.c:2649\n ip6_route_output include/net/ip6_route.h:93 [inline]\n ip6_dst_lookup_tail+0x189/0x11a0 net/ipv6/ip6_output.c:1120\n ip6_dst_lookup_flow+0xb9/0x180 net/ipv6/ip6_output.c:1250\n sctp_v6_get_dst+0x792/0x1e20 net/sctp/ipv6.c:326\n sctp_transport_route+0x12c/0x2e0 net/sctp/transport.c:455\n sctp_assoc_add_peer+0x614/0x15c0 net/sctp/associola.c:662\n sctp_connect_new_asoc+0x31d/0x6c0 net/sctp/socket.c:1099\n __sctp_connect+0x66d/0xe30 net/sctp/socket.c:1197\n sctp_connect net/sctp/socket.c:4819 [inline]\n sctp_inet_connect+0x149/0x1f0 net/sctp/socket.c:4834\n __sys_connect_file net/socket.c:2048 [inline]\n __sys_connect+0x2df/0x310 net/socket.c:2065\n __do_sys_connect net/socket.c:2075 [inline]\n __se_sys_connect net/socket.c:2072 [inline]\n __x64_sys_connect+0x7a/0x90 net/socket.c:2072\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f(CVE-2024-36902)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nipv6: Fix potential uninit-value access in __ip6_make_skb()\r\n\r\nAs it was done in commit fc1092f51567 (\u0026quot;ipv4: Fix uninit-value access in\n__ip_make_skb()\u0026quot;) for IPv4, check FLOWI_FLAG_KNOWN_NH on fl6-\u0026gt;flowi6_flags\ninstead of testing HDRINCL on the socket to avoid a race condition which\ncauses uninit-value access.(CVE-2024-36903)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nARM: 9381/1: kasan: clear stale stack poison\r\n\r\nWe found below OOB crash:\r\n\r\n[ 33.452494] ==================================================================\n[ 33.453513] BUG: KASAN: stack-out-of-bounds in refresh_cpu_vm_stats.constprop.0+0xcc/0x2ec\n[ 33.454660] Write of size 164 at addr c1d03d30 by task swapper/0/0\n[ 33.455515]\n[ 33.455767] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 6.1.25-mainline #1\n[ 33.456880] Hardware name: Generic DT based system\n[ 33.457555] unwind_backtrace from show_stack+0x18/0x1c\n[ 33.458326] show_stack from dump_stack_lvl+0x40/0x4c\n[ 33.459072] dump_stack_lvl from print_report+0x158/0x4a4\n[ 33.459863] print_report from kasan_report+0x9c/0x148\n[ 33.460616] kasan_report from kasan_check_range+0x94/0x1a0\n[ 33.461424] kasan_check_range from memset+0x20/0x3c\n[ 33.462157] memset from refresh_cpu_vm_stats.constprop.0+0xcc/0x2ec\n[ 33.463064] refresh_cpu_vm_stats.constprop.0 from tick_nohz_idle_stop_tick+0x180/0x53c\n[ 33.464181] tick_nohz_idle_stop_tick from do_idle+0x264/0x354\n[ 33.465029] do_idle from cpu_startup_entry+0x20/0x24\n[ 33.465769] cpu_startup_entry from rest_init+0xf0/0xf4\n[ 33.466528] rest_init from arch_post_acpi_subsys_init+0x0/0x18\n[ 33.467397]\n[ 33.467644] The buggy address belongs to stack of task swapper/0/0\n[ 33.468493] and is located at offset 112 in frame:\n[ 33.469172] refresh_cpu_vm_stats.constprop.0+0x0/0x2ec\n[ 33.469917]\n[ 33.470165] This frame has 2 objects:\n[ 33.470696] [32, 76) \u0026apos;global_zone_diff\u0026apos;\n[ 33.470729] [112, 276) \u0026apos;global_node_diff\u0026apos;\n[ 33.471294]\n[ 33.472095] The buggy address belongs to the physical page:\n[ 33.472862] page:3cd72da8 refcount:1 mapcount:0 mapping:00000000 index:0x0 pfn:0x41d03\n[ 33.473944] flags: 0x1000(reserved|zone=0)\n[ 33.474565] raw: 00001000 ed741470 ed741470 00000000 00000000 00000000 ffffffff 00000001\n[ 33.475656] raw: 00000000\n[ 33.476050] page dumped because: kasan: bad access detected\n[ 33.476816]\n[ 33.477061] Memory state around the buggy address:\n[ 33.477732] c1d03c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n[ 33.478630] c1d03c80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 00 00\n[ 33.479526] \u0026gt;c1d03d00: 00 04 f2 f2 f2 f2 00 00 00 00 00 00 f1 f1 f1 f1\n[ 33.480415] ^\n[ 33.481195] c1d03d80: 00 00 00 00 00 00 00 00 00 00 04 f3 f3 f3 f3 f3\n[ 33.482088] c1d03e00: f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00\n[ 33.482978] ==================================================================\r\n\r\nWe find the root cause of this OOB is that arm does not clear stale stack\npoison in the case of cpuidle.\r\n\r\nThis patch refer to arch/arm64/kernel/sleep.S to resolve this issue.\r\n\r\nFrom cited commit [1] that explain the problem\r\n\r\nFunctions which the compiler has instrumented for KASAN place poison on\nthe stack shadow upon entry and remove this poison prior to returning.\r\n\r\nIn the case of cpuidle, CPUs exit the kernel a number of levels deep in\nC code. Any instrumented functions on this critical path will leave\nportions of the stack shadow poisoned.\r\n\r\nIf CPUs lose context and return to the kernel via a cold path, we\nrestore a prior context saved in __cpu_suspend_enter are forgotten, and\nwe never remove the poison they placed in the stack shadow area by\nfunctions calls between this and the actual exit of the kernel.\r\n\r\nThus, (depending on stackframe layout) subsequent calls to instrumented\nfunctions may hit this stale poison, resulting in (spurious) KASAN\nsplats to the console.\r\n\r\nTo avoid this, clear any stale poison from the idle thread for a CPU\nprior to bringing a CPU online.\r\n\r\nFrom cited commit [2]\r\n\r\nExtend to check for CONFIG_KASAN_STACK\r\n\r\n[1] commit 0d97e6d8024c (\u0026quot;arm64: kasan: clear stale stack poison\u0026quot;)\n[2] commit d56a9ef84bd0 (\u0026quot;kasan, arm64: unpoison stack only with CONFIG_KASAN_STACK\u0026quot;)(CVE-2024-36906)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nblk-iocost: do not WARN if iocg was already offlined\r\n\r\nIn iocg_pay_debt(), warn is triggered if \u0026apos;active_list\u0026apos; is empty, which\nis intended to confirm iocg is active when it has debt. However, warn\ncan be triggered during a blkcg or disk removal, if iocg_waitq_timer_fn()\nis run at that time:\r\n\r\n WARNING: CPU: 0 PID: 2344971 at block/blk-iocost.c:1402 iocg_pay_debt+0x14c/0x190\n Call trace:\n iocg_pay_debt+0x14c/0x190\n iocg_kick_waitq+0x438/0x4c0\n iocg_waitq_timer_fn+0xd8/0x130\n __run_hrtimer+0x144/0x45c\n __hrtimer_run_queues+0x16c/0x244\n hrtimer_interrupt+0x2cc/0x7b0\r\n\r\nThe warn in this situation is meaningless. Since this iocg is being\nremoved, the state of the \u0026apos;active_list\u0026apos; is irrelevant, and \u0026apos;waitq_timer\u0026apos;\nis canceled after removing \u0026apos;active_list\u0026apos; in ioc_pd_free(), which ensures\niocg is freed after iocg_waitq_timer_fn() returns.\r\n\r\nTherefore, add the check if iocg was already offlined to avoid warn\nwhen removing a blkcg or disk.(CVE-2024-36908)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nblock: fix overflow in blk_ioctl_discard()\r\n\r\nThere is no check for overflow of \u0026apos;start + len\u0026apos; in blk_ioctl_discard().\nHung task occurs if submit an discard ioctl with the following param:\n start = 0x80000000000ff000, len = 0x8000000000fff000;\nAdd the overflow validation now.(CVE-2024-36917)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nscsi: lpfc: Release hbalock before calling lpfc_worker_wake_up()\r\n\r\nlpfc_worker_wake_up() calls the lpfc_work_done() routine, which takes the\nhbalock. Thus, lpfc_worker_wake_up() should not be called while holding the\nhbalock to avoid potential deadlock.(CVE-2024-36924)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ns390/qeth: Fix kernel panic after setting hsuid\r\n\r\nSymptom:\nWhen the hsuid attribute is set for the first time on an IQD Layer3\ndevice while the corresponding network interface is already UP,\nthe kernel will try to execute a napi function pointer that is NULL.\r\n\r\nExample:\n---------------------------------------------------------------------------\n[ 2057.572696] illegal operation: 0001 ilc:1 [#1] SMP\n[ 2057.572702] Modules linked in: af_iucv qeth_l3 zfcp scsi_transport_fc sunrpc nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6\nnft_reject nft_ct nf_tables_set nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables libcrc32c nfnetlink ghash_s390 prng xts aes_s390 des_s390 de\ns_generic sha3_512_s390 sha3_256_s390 sha512_s390 vfio_ccw vfio_mdev mdev vfio_iommu_type1 eadm_sch vfio ext4 mbcache jbd2 qeth_l2 bridge stp llc dasd_eckd_mod qeth dasd_mod\n qdio ccwgroup pkey zcrypt\n[ 2057.572739] CPU: 6 PID: 60182 Comm: stress_client Kdump: loaded Not tainted 4.18.0-541.el8.s390x #1\n[ 2057.572742] Hardware name: IBM 3931 A01 704 (LPAR)\n[ 2057.572744] Krnl PSW : 0704f00180000000 0000000000000002 (0x2)\n[ 2057.572748] R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:3 PM:0 RI:0 EA:3\n[ 2057.572751] Krnl GPRS: 0000000000000004 0000000000000000 00000000a3b008d8 0000000000000000\n[ 2057.572754] 00000000a3b008d8 cb923a29c779abc5 0000000000000000 00000000814cfd80\n[ 2057.572756] 000000000000012c 0000000000000000 00000000a3b008d8 00000000a3b008d8\n[ 2057.572758] 00000000bab6d500 00000000814cfd80 0000000091317e46 00000000814cfc68\n[ 2057.572762] Krnl Code:#0000000000000000: 0000 illegal\n \u0026gt;0000000000000002: 0000 illegal\n 0000000000000004: 0000 illegal\n 0000000000000006: 0000 illegal\n 0000000000000008: 0000 illegal\n 000000000000000a: 0000 illegal\n 000000000000000c: 0000 illegal\n 000000000000000e: 0000 illegal\n[ 2057.572800] Call Trace:\n[ 2057.572801] ([\u0026lt;00000000ec639700\u0026gt;] 0xec639700)\n[ 2057.572803] [\u0026lt;00000000913183e2\u0026gt;] net_rx_action+0x2ba/0x398\n[ 2057.572809] [\u0026lt;0000000091515f76\u0026gt;] __do_softirq+0x11e/0x3a0\n[ 2057.572813] [\u0026lt;0000000090ce160c\u0026gt;] do_softirq_own_stack+0x3c/0x58\n[ 2057.572817] ([\u0026lt;0000000090d2cbd6\u0026gt;] do_softirq.part.1+0x56/0x60)\n[ 2057.572822] [\u0026lt;0000000090d2cc60\u0026gt;] __local_bh_enable_ip+0x80/0x98\n[ 2057.572825] [\u0026lt;0000000091314706\u0026gt;] __dev_queue_xmit+0x2be/0xd70\n[ 2057.572827] [\u0026lt;000003ff803dd6d6\u0026gt;] afiucv_hs_send+0x24e/0x300 [af_iucv]\n[ 2057.572830] [\u0026lt;000003ff803dd88a\u0026gt;] iucv_send_ctrl+0x102/0x138 [af_iucv]\n[ 2057.572833] [\u0026lt;000003ff803de72a\u0026gt;] iucv_sock_connect+0x37a/0x468 [af_iucv]\n[ 2057.572835] [\u0026lt;00000000912e7e90\u0026gt;] __sys_connect+0xa0/0xd8\n[ 2057.572839] [\u0026lt;00000000912e9580\u0026gt;] sys_socketcall+0x228/0x348\n[ 2057.572841] [\u0026lt;0000000091514e1a\u0026gt;] system_call+0x2a6/0x2c8\n[ 2057.572843] Last Breaking-Event-Address:\n[ 2057.572844] [\u0026lt;0000000091317e44\u0026gt;] __napi_poll+0x4c/0x1d8\n[ 2057.572846]\n[ 2057.572847] Kernel panic - not syncing: Fatal exception in interrupt\n-------------------------------------------------------------------------------------------\r\n\r\nAnalysis:\nThere is one napi structure per out_q: card-\u0026gt;qdio.out_qs[i].napi\nThe napi.poll functions are set during qeth_open().\r\n\r\nSince\ncommit 1cfef80d4c2b (\u0026quot;s390/qeth: Don\u0026apos;t call dev_close/dev_open (DOWN/UP)\u0026quot;)\nqeth_set_offline()/qeth_set_online() no longer call dev_close()/\ndev_open(). So if qeth_free_qdio_queues() cleared\ncard-\u0026gt;qdio.out_qs[i].napi.poll while the network interface was UP and the\ncard was offline, they are not set again.\r\n\r\nReproduction:\nchzdev -e $devno layer2=0\nip link set dev $network_interface up\necho 0 \u0026gt; /sys/bus/ccw\n---truncated---(CVE-2024-36928)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nnet: core: reject skb_copy(_expand) for fraglist GSO skbs\r\n\r\nSKB_GSO_FRAGLIST skbs must not be linearized, otherwise they become\ninvalid. Return NULL if such an skb is passed to skb_copy or\nskb_copy_expand, in order to prevent a crash on a potential later\ncall to skb_gso_segment.(CVE-2024-36929)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\namd/amdkfd: sync all devices to wait all processes being evicted\r\n\r\nIf there are more than one device doing reset in parallel, the first\ndevice will call kfd_suspend_all_processes() to evict all processes\non all devices, this call takes time to finish. other device will\nstart reset and recover without waiting. if the process has not been\nevicted before doing recover, it will be restored, then caused page\nfault.(CVE-2024-36949)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ntipc: fix a possible memleak in tipc_buf_append\r\n\r\n__skb_linearize() doesn\u0026apos;t free the skb when it fails, so move\n\u0026apos;*buf = NULL\u0026apos; after __skb_linearize(), so that the skb can be\nfreed on the err path.(CVE-2024-36954)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nocteontx2-af: avoid off-by-one read from userspace\r\n\r\nWe try to access count + 1 byte from userspace with memdup_user(buffer,\ncount + 1). However, the userspace only provides buffer of count bytes and\nonly these count bytes are verified to be okay to access. To ensure the\ncopied buffer is NUL terminated, we use memdup_user_nul instead.(CVE-2024-36957)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nfs/9p: only translate RWX permissions for plain 9P2000\r\n\r\nGarbage in plain 9P2000\u0026apos;s perm bits is allowed through, which causes it\nto be able to set (among others) the suid bit. This was presumably not\nthe intent since the unix extended bits are handled explicitly and\nconditionally on .u.(CVE-2024-36964)",
"id": "OESA-2024-1707",
"modified": "2026-08-06T11:07:10Z",
"published": "2024-06-14T11:07:10Z",
"references": [
{
"type": "ADVISORY",
"url": "https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2024-1707"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47247"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47484"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47558"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48652"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52672"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52680"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52686"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52693"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52732"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52762"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52775"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52803"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52810"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52880"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52881"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26835"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26889"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27393"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27402"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27408"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35790"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35809"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35811"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35853"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35854"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35871"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35888"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35895"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35896"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35905"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35924"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35967"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35973"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35982"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35984"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36017"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36029"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36883"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36886"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36889"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36898"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36899"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36901"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36902"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36903"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36906"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36908"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36917"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36924"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36928"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36929"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36949"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36954"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36957"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36964"
}
],
"schema_version": "1.7.2",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:N",
"type": "CVSS_V3"
}
],
"summary": "kernel security update",
"upstream": [
"CVE-2021-47247",
"CVE-2021-47484",
"CVE-2021-47558",
"CVE-2022-48652",
"CVE-2023-52672",
"CVE-2023-52680",
"CVE-2023-52686",
"CVE-2023-52693",
"CVE-2023-52732",
"CVE-2023-52762",
"CVE-2023-52775",
"CVE-2023-52803",
"CVE-2023-52810",
"CVE-2023-52880",
"CVE-2023-52881",
"CVE-2024-26835",
"CVE-2024-26889",
"CVE-2024-27393",
"CVE-2024-27402",
"CVE-2024-27408",
"CVE-2024-35790",
"CVE-2024-35809",
"CVE-2024-35811",
"CVE-2024-35853",
"CVE-2024-35854",
"CVE-2024-35871",
"CVE-2024-35888",
"CVE-2024-35895",
"CVE-2024-35896",
"CVE-2024-35905",
"CVE-2024-35924",
"CVE-2024-35967",
"CVE-2024-35973",
"CVE-2024-35982",
"CVE-2024-35984",
"CVE-2024-36017",
"CVE-2024-36029",
"CVE-2024-36883",
"CVE-2024-36886",
"CVE-2024-36889",
"CVE-2024-36898",
"CVE-2024-36899",
"CVE-2024-36901",
"CVE-2024-36902",
"CVE-2024-36903",
"CVE-2024-36906",
"CVE-2024-36908",
"CVE-2024-36917",
"CVE-2024-36924",
"CVE-2024-36928",
"CVE-2024-36929",
"CVE-2024-36949",
"CVE-2024-36954",
"CVE-2024-36957",
"CVE-2024-36964"
]
}
OESA-2024-1835 (CVE-2021-47270)
Vulnerability from osv_openeuler – Published: 2024-07-12 11:07 – Updated: 2026-08-06 11:07 – Source websiteThe Linux Kernel, the operating system core itself.
Security Fix(es):
In the Linux kernel, the following vulnerability has been resolved:
usb: fix various gadgets null ptr deref on 10gbps cabling.
This avoids a null pointer dereference in f_{ecm,eem,hid,loopback,printer,rndis,serial,sourcesink,subset,tcm} by simply reusing the 5gbps config for 10gbps.(CVE-2021-47270)
In the Linux kernel, the following vulnerability has been resolved:
seg6: fix the iif in the IPv6 socket control block
When an IPv4 packet is received, the ip_rcv_core(...) sets the receiving interface index into the IPv4 socket control block (v5.16-rc4, net/ipv4/ip_input.c line 510):
IPCB(skb)->iif = skb->skb_iif;
If that IPv4 packet is meant to be encapsulated in an outer IPv6+SRH header, the seg6_do_srh_encap(...) performs the required encapsulation. In this case, the seg6_do_srh_encap function clears the IPv6 socket control block (v5.16-rc4 net/ipv6/seg6_iptunnel.c line 163):
memset(IP6CB(skb), 0, sizeof(*IP6CB(skb)));
The memset(...) was introduced in commit ef489749aae5 ("ipv6: sr: clear IP6CB(skb) on SRH ip4ip6 encapsulation") a long time ago (2019-01-29).
Since the IPv6 socket control block and the IPv4 socket control block share the same memory area (skb->cb), the receiving interface index info is lost (IP6CB(skb)->iif is set to zero).
As a side effect, that condition triggers a NULL pointer dereference if commit 0857d6f8c759 ("ipv6: When forwarding count rx stats on the orig netdev") is applied.
To fix that issue, we set the IP6CB(skb)->iif with the index of the receiving interface once again.(CVE-2021-47515)
In the Linux kernel, the following vulnerability has been resolved:
media: mxl111sf: change mutex_init() location
Syzbot reported, that mxl111sf_ctrl_msg() uses uninitialized mutex. The problem was in wrong mutex_init() location.
Previous mutex_init(&state->msg_lock) call was in ->init() function, but dvb_usbv2_init() has this order of calls:
dvb_usbv2_init()
dvb_usbv2_adapter_init()
dvb_usbv2_adapter_frontend_init()
props->frontend_attach()
props->init()
Since mxl111sf_ devices call mxl111sf_ctrl_msg() in ->frontend_attach() internally we need to initialize state->msg_lock before frontend_attach(). To achieve it, ->probe() call added to all mxl111sf_ devices, which will simply initiaize mutex.(CVE-2021-47583)
In the Linux kernel, the following vulnerability has been resolved:
mac80211: validate extended element ID is present
Before attempting to parse an extended element, verify that the extended element ID is present.(CVE-2021-47611)
In the Linux kernel, the following vulnerability has been resolved:
i40e: Fix queues reservation for XDP
When XDP was configured on a system with large number of CPUs and X722 NIC there was a call trace with NULL pointer dereference.
i40e 0000:87:00.0: failed to get tracking for 256 queues for VSI 0 err -12 i40e 0000:87:00.0: setup of MAIN VSI failed
BUG: kernel NULL pointer dereference, address: 0000000000000000 RIP: 0010:i40e_xdp+0xea/0x1b0 [i40e] Call Trace: ? i40e_reconfig_rss_queues+0x130/0x130 [i40e] dev_xdp_install+0x61/0xe0 dev_xdp_attach+0x18a/0x4c0 dev_change_xdp_fd+0x1e6/0x220 do_setlink+0x616/0x1030 ? ahci_port_stop+0x80/0x80 ? ata_qc_issue+0x107/0x1e0 ? lock_timer_base+0x61/0x80 ? __mod_timer+0x202/0x380 rtnl_setlink+0xe5/0x170 ? bpf_lsm_binder_transaction+0x10/0x10 ? security_capable+0x36/0x50 rtnetlink_rcv_msg+0x121/0x350 ? rtnl_calcit.isra.0+0x100/0x100 netlink_rcv_skb+0x50/0xf0 netlink_unicast+0x1d3/0x2a0 netlink_sendmsg+0x22a/0x440 sock_sendmsg+0x5e/0x60 __sys_sendto+0xf0/0x160 ? __sys_getsockname+0x7e/0xc0 ? _copy_from_user+0x3c/0x80 ? __sys_setsockopt+0xc8/0x1a0 __x64_sys_sendto+0x20/0x30 do_syscall_64+0x33/0x40 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f83fa7a39e0
This was caused by PF queue pile fragmentation due to flow director VSI queue being placed right after main VSI. Because of this main VSI was not able to resize its queue allocation for XDP resulting in no queues allocated for main VSI when XDP was turned on.
Fix this by always allocating last queue in PF queue pile for a flow director VSI.(CVE-2021-47619)
In the Linux kernel, the following vulnerability has been resolved:
ASoC: max9759: fix underflow in speaker_gain_control_put()
Check for negative values of "priv->gain" to prevent an out of bounds access. The concern is that these might come from the user via: -> snd_ctl_elem_write_user() -> snd_ctl_elem_write() -> kctl->put()(CVE-2022-48717)
In the Linux kernel, the following vulnerability has been resolved:
net: ieee802154: ca8210: Stop leaking skb's
Upon error the ieee802154_xmit_complete() helper is not called. Only ieee802154_wake_queue() is called manually. We then leak the skb structure.
Free the skb structure upon error before returning.(CVE-2022-48722)
Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.(CVE-2022-48736)
In the Linux kernel, the following vulnerability has been resolved:
ASoC: ops: Reject out of bounds values in snd_soc_put_volsw()
We don't currently validate that the values being set are within the range we advertised to userspace as being valid, do so and reject any values that are out of range.(CVE-2022-48738)
In the Linux kernel, the following vulnerability has been resolved:
net: amd-xgbe: Fix skb data length underflow
There will be BUG_ON() triggered in include/linux/skbuff.h leading to intermittent kernel panic, when the skb length underflow is detected.
Fix this by dropping the packet if such length underflows are seen because of inconsistencies in the hardware descriptors.(CVE-2022-48743)
In the Linux kernel, the following vulnerability has been resolved:
net/mlx5e: Avoid field-overflowing memcpy()
In preparation for FORTIFY_SOURCE performing compile-time and run-time field bounds checking for memcpy(), memmove(), and memset(), avoid intentionally writing across neighboring fields.
Use flexible arrays instead of zero-element arrays (which look like they are always overflowing) and split the cross-field memcpy() into two halves that can be appropriately bounds-checked by the compiler.
We were doing:
#define ETH_HLEN 14
#define VLAN_HLEN 4
...
#define MLX5E_XDP_MIN_INLINE (ETH_HLEN + VLAN_HLEN)
...
struct mlx5e_tx_wqe *wqe = mlx5_wq_cyc_get_wqe(wq, pi);
...
struct mlx5_wqe_eth_seg *eseg = &wqe->eth;
struct mlx5_wqe_data_seg *dseg = wqe->data;
...
memcpy(eseg->inline_hdr.start, xdptxd->data, MLX5E_XDP_MIN_INLINE);
target is wqe->eth.inline_hdr.start (which the compiler sees as being 2 bytes in size), but copying 18, intending to write across start (really vlan_tci, 2 bytes). The remaining 16 bytes get written into wqe->data[0], covering byte_count (4 bytes), lkey (4 bytes), and addr (8 bytes).
struct mlx5e_tx_wqe { struct mlx5_wqe_ctrl_seg ctrl; / 0 16 / struct mlx5_wqe_eth_seg eth; / 16 16 / struct mlx5_wqe_data_seg data[]; / 32 0 /
/* size: 32, cachelines: 1, members: 3 */
/* last cacheline: 32 bytes */
};
struct mlx5_wqe_eth_seg { u8 swp_outer_l4_offset; / 0 1 / u8 swp_outer_l3_offset; / 1 1 / u8 swp_inner_l4_offset; / 2 1 / u8 swp_inner_l3_offset; / 3 1 / u8 cs_flags; / 4 1 / u8 swp_flags; / 5 1 / __be16 mss; / 6 2 / __be32 flow_table_metadata; / 8 4 / union { struct { __be16 sz; / 12 2 / u8 start[2]; / 14 2 / } inline_hdr; / 12 4 / struct { __be16 type; / 12 2 / __be16 vlan_tci; / 14 2 / } insert; / 12 4 / __be32 trailer; / 12 4 / }; / 12 4 /
/* size: 16, cachelines: 1, members: 9 */
/* last cacheline: 16 bytes */
};
struct mlx5_wqe_data_seg { __be32 byte_count; / 0 4 / __be32 lkey; / 4 4 / __be64 addr; / 8 8 /
/* size: 16, cachelines: 1, members: 3 */
/* last cacheline: 16 bytes */
};
So, split the memcpy() so the compiler can reason about the buffer sizes.
"pahole" shows no size nor member offset changes to struct mlx5e_tx_wqe nor struct mlx5e_umr_wqe. "objdump -d" shows no meaningful object code changes (i.e. only source line number induced differences and optimizations).(CVE-2022-48744)
In the Linux kernel, the following vulnerability has been resolved:
scsi: bnx2fc: Flush destroy_work queue before calling bnx2fc_interface_put()
The bnx2fc_destroy() functions are removing the interface before calling destroy_work. This results multiple WARNings from sysfs_remove_group() as the controller rport device attributes are removed too early.
Replace the fcoe_port's destroy_work queue. It's not needed.
The problem is easily reproducible with the following steps.
Example:
$ dmesg -w & $ systemctl enable --now fcoe $ fipvlan -s -c ens2f1 $ fcoeadm -d ens2f1.802 [ 583.464488] host2: libfc: Link down on port (7500a1) [ 583.472651] bnx2fc: 7500a1 - rport not created Yet!! [ 583.490468] ------------[ cut here ]------------ [ 583.538725] sysfs group 'power' not found for kobject 'rport-2:0-0' [ 583.568814] WARNING: CPU: 3 PID: 192 at fs/sysfs/group.c:279 sysfs_remove_group+0x6f/0x80 [ 583.607130] Modules linked in: dm_service_time 8021q garp mrp stp llc bnx2fc cnic uio rpcsec_gss_krb5 auth_rpcgss nfsv4 ... [ 583.942994] CPU: 3 PID: 192 Comm: kworker/3:2 Kdump: loaded Not tainted 5.14.0-39.el9.x86_64 #1 [ 583.984105] Hardware name: HP ProLiant DL120 G7, BIOS J01 07/01/2013 [ 584.016535] Workqueue: fc_wq_2 fc_rport_final_delete [scsi_transport_fc] [ 584.050691] RIP: 0010:sysfs_remove_group+0x6f/0x80 [ 584.074725] Code: ff 5b 48 89 ef 5d 41 5c e9 ee c0 ff ff 48 89 ef e8 f6 b8 ff ff eb d1 49 8b 14 24 48 8b 33 48 c7 c7 ... [ 584.162586] RSP: 0018:ffffb567c15afdc0 EFLAGS: 00010282 [ 584.188225] RAX: 0000000000000000 RBX: ffffffff8eec4220 RCX: 0000000000000000 [ 584.221053] RDX: ffff8c1586ce84c0 RSI: ffff8c1586cd7cc0 RDI: ffff8c1586cd7cc0 [ 584.255089] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffb567c15afc00 [ 584.287954] R10: ffffb567c15afbf8 R11: ffffffff8fbe7f28 R12: ffff8c1486326400 [ 584.322356] R13: ffff8c1486326480 R14: ffff8c1483a4a000 R15: 0000000000000004 [ 584.355379] FS: 0000000000000000(0000) GS:ffff8c1586cc0000(0000) knlGS:0000000000000000 [ 584.394419] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 584.421123] CR2: 00007fe95a6f7840 CR3: 0000000107674002 CR4: 00000000000606e0 [ 584.454888] Call Trace: [ 584.466108] device_del+0xb2/0x3e0 [ 584.481701] device_unregister+0x13/0x60 [ 584.501306] bsg_unregister_queue+0x5b/0x80 [ 584.522029] bsg_remove_queue+0x1c/0x40 [ 584.541884] fc_rport_final_delete+0xf3/0x1d0 [scsi_transport_fc] [ 584.573823] process_one_work+0x1e3/0x3b0 [ 584.592396] worker_thread+0x50/0x3b0 [ 584.609256] ? rescuer_thread+0x370/0x370 [ 584.628877] kthread+0x149/0x170 [ 584.643673] ? set_kthread_struct+0x40/0x40 [ 584.662909] ret_from_fork+0x22/0x30 [ 584.680002] ---[ end trace 53575ecefa942ece ]---(CVE-2022-48758)
In the Linux kernel, the following vulnerability has been resolved:
media: lgdt3306a: Add a check against null-pointer-def
The driver should check whether the client provides the platform_data.
The following log reveals it:
[ 29.610324] BUG: KASAN: null-ptr-deref in kmemdup+0x30/0x40 [ 29.610730] Read of size 40 at addr 0000000000000000 by task bash/414 [ 29.612820] Call Trace: [ 29.613030] <TASK> [ 29.613201] dump_stack_lvl+0x56/0x6f [ 29.613496] ? kmemdup+0x30/0x40 [ 29.613754] print_report.cold+0x494/0x6b7 [ 29.614082] ? kmemdup+0x30/0x40 [ 29.614340] kasan_report+0x8a/0x190 [ 29.614628] ? kmemdup+0x30/0x40 [ 29.614888] kasan_check_range+0x14d/0x1d0 [ 29.615213] memcpy+0x20/0x60 [ 29.615454] kmemdup+0x30/0x40 [ 29.615700] lgdt3306a_probe+0x52/0x310 [ 29.616339] i2c_device_probe+0x951/0xa90(CVE-2022-48772)
In the Linux kernel, the following vulnerability has been resolved:
mmc: sdio: fix possible resource leaks in some error paths
If sdio_add_func() or sdio_init_func() fails, sdio_remove_func() can not release the resources, because the sdio function is not presented in these two cases, it won't call of_node_put() or put_device().
To fix these leaks, make sdio_func_present() only control whether device_del() needs to be called or not, then always call of_node_put() and put_device().
In error case in sdio_init_func(), the reference of 'card->dev' is not get, to avoid redundant put in sdio_free_func_cis(), move the get_device() to sdio_alloc_func() and put_device() to sdio_release_func(), it can keep the get/put function be balanced.
Without this patch, while doing fault inject test, it can get the following leak reports, after this fix, the leak is gone.
unreferenced object 0xffff888112514000 (size 2048): comm "kworker/3:2", pid 65, jiffies 4294741614 (age 124.774s) hex dump (first 32 bytes): 00 e0 6f 12 81 88 ff ff 60 58 8d 06 81 88 ff ff ..o.....`X...... 10 40 51 12 81 88 ff ff 10 40 51 12 81 88 ff ff .@Q......@Q..... backtrace: [<000000009e5931da>] kmalloc_trace+0x21/0x110 [<000000002f839ccb>] mmc_alloc_card+0x38/0xb0 [mmc_core] [<0000000004adcbf6>] mmc_sdio_init_card+0xde/0x170 [mmc_core] [<000000007538fea0>] mmc_attach_sdio+0xcb/0x1b0 [mmc_core] [<00000000d4fdeba7>] mmc_rescan+0x54a/0x640 [mmc_core]
unreferenced object 0xffff888112511000 (size 2048): comm "kworker/3:2", pid 65, jiffies 4294741623 (age 124.766s) hex dump (first 32 bytes): 00 40 51 12 81 88 ff ff e0 58 8d 06 81 88 ff ff .@Q......X...... 10 10 51 12 81 88 ff ff 10 10 51 12 81 88 ff ff ..Q.......Q..... backtrace: [<000000009e5931da>] kmalloc_trace+0x21/0x110 [<00000000fcbe706c>] sdio_alloc_func+0x35/0x100 [mmc_core] [<00000000c68f4b50>] mmc_attach_sdio.cold.18+0xb1/0x395 [mmc_core] [<00000000d4fdeba7>] mmc_rescan+0x54a/0x640 mmc_core
In the Linux kernel through 6.7.1, there is a use-after-free in cec_queue_msg_fh, related to drivers/media/cec/core/cec-adap.c and drivers/media/cec/core/cec-api.c.(CVE-2024-23848)
In the Linux kernel, the following vulnerability has been resolved:
genirq/cpuhotplug, x86/vector: Prevent vector leak during CPU offline
The absence of IRQD_MOVE_PCNTXT prevents immediate effectiveness of interrupt affinity reconfiguration via procfs. Instead, the change is deferred until the next instance of the interrupt being triggered on the original CPU.
When the interrupt next triggers on the original CPU, the new affinity is enforced within __irq_move_irq(). A vector is allocated from the new CPU, but the old vector on the original CPU remains and is not immediately reclaimed. Instead, apicd->move_in_progress is flagged, and the reclaiming process is delayed until the next trigger of the interrupt on the new CPU.
Upon the subsequent triggering of the interrupt on the new CPU, irq_complete_move() adds a task to the old CPU's vector_cleanup list if it remains online. Subsequently, the timer on the old CPU iterates over its vector_cleanup list, reclaiming old vectors.
However, a rare scenario arises if the old CPU is outgoing before the interrupt triggers again on the new CPU.
In that case irq_force_complete_move() is not invoked on the outgoing CPU to reclaim the old apicd->prev_vector because the interrupt isn't currently affine to the outgoing CPU, and irq_needs_fixup() returns false. Even though __vector_schedule_cleanup() is later called on the new CPU, it doesn't reclaim apicd->prev_vector; instead, it simply resets both apicd->move_in_progress and apicd->prev_vector to 0.
As a result, the vector remains unreclaimed in vector_matrix, leading to a CPU vector leak.
To address this issue, move the invocation of irq_force_complete_move() before the irq_needs_fixup() call to reclaim apicd->prev_vector, if the interrupt is currently or used to be affine to the outgoing CPU.
Additionally, reclaim the vector in __vector_schedule_cleanup() as well, following a warning message, although theoretically it should never see apicd->move_in_progress with apicd->prev_cpu pointing to an offline CPU.(CVE-2024-31076)
In the Linux kernel, the following vulnerability has been resolved:
net/sched: act_skbmod: prevent kernel-infoleak
syzbot found that tcf_skbmod_dump() was copying four bytes from kernel stack to user space [1].
The issue here is that 'struct tc_skbmod' has a four bytes hole.
We need to clear the structure before filling fields.
[1] BUG: KMSAN: kernel-infoleak in instrument_copy_to_user include/linux/instrumented.h:114 [inline] BUG: KMSAN: kernel-infoleak in copy_to_user_iter lib/iov_iter.c:24 [inline] BUG: KMSAN: kernel-infoleak in iterate_ubuf include/linux/iov_iter.h:29 [inline] BUG: KMSAN: kernel-infoleak in iterate_and_advance2 include/linux/iov_iter.h:245 [inline] BUG: KMSAN: kernel-infoleak in iterate_and_advance include/linux/iov_iter.h:271 [inline] BUG: KMSAN: kernel-infoleak in _copy_to_iter+0x366/0x2520 lib/iov_iter.c:185 instrument_copy_to_user include/linux/instrumented.h:114 [inline] copy_to_user_iter lib/iov_iter.c:24 [inline] iterate_ubuf include/linux/iov_iter.h:29 [inline] iterate_and_advance2 include/linux/iov_iter.h:245 [inline] iterate_and_advance include/linux/iov_iter.h:271 [inline] _copy_to_iter+0x366/0x2520 lib/iov_iter.c:185 copy_to_iter include/linux/uio.h:196 [inline] simple_copy_to_iter net/core/datagram.c:532 [inline] __skb_datagram_iter+0x185/0x1000 net/core/datagram.c:420 skb_copy_datagram_iter+0x5c/0x200 net/core/datagram.c:546 skb_copy_datagram_msg include/linux/skbuff.h:4050 [inline] netlink_recvmsg+0x432/0x1610 net/netlink/af_netlink.c:1962 sock_recvmsg_nosec net/socket.c:1046 [inline] sock_recvmsg+0x2c4/0x340 net/socket.c:1068 __sys_recvfrom+0x35a/0x5f0 net/socket.c:2242 __do_sys_recvfrom net/socket.c:2260 [inline] __se_sys_recvfrom net/socket.c:2256 [inline] __x64_sys_recvfrom+0x126/0x1d0 net/socket.c:2256 do_syscall_64+0xd5/0x1f0 entry_SYSCALL_64_after_hwframe+0x6d/0x75
Uninit was stored to memory at: pskb_expand_head+0x30f/0x19d0 net/core/skbuff.c:2253 netlink_trim+0x2c2/0x330 net/netlink/af_netlink.c:1317 netlink_unicast+0x9f/0x1260 net/netlink/af_netlink.c:1351 nlmsg_unicast include/net/netlink.h:1144 [inline] nlmsg_notify+0x21d/0x2f0 net/netlink/af_netlink.c:2610 rtnetlink_send+0x73/0x90 net/core/rtnetlink.c:741 rtnetlink_maybe_send include/linux/rtnetlink.h:17 [inline] tcf_add_notify net/sched/act_api.c:2048 [inline] tcf_action_add net/sched/act_api.c:2071 [inline] tc_ctl_action+0x146e/0x19d0 net/sched/act_api.c:2119 rtnetlink_rcv_msg+0x1737/0x1900 net/core/rtnetlink.c:6595 netlink_rcv_skb+0x375/0x650 net/netlink/af_netlink.c:2559 rtnetlink_rcv+0x34/0x40 net/core/rtnetlink.c:6613 netlink_unicast_kernel net/netlink/af_netlink.c:1335 [inline] netlink_unicast+0xf4c/0x1260 net/netlink/af_netlink.c:1361 netlink_sendmsg+0x10df/0x11f0 net/netlink/af_netlink.c:1905 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x30f/0x380 net/socket.c:745 _syssendmsg+0x877/0xb60 net/socket.c:2584 _sys_sendmsg+0x28d/0x3c0 net/socket.c:2638 __sys_sendmsg net/socket.c:2667 [inline] __do_sys_sendmsg net/socket.c:2676 [inline] __se_sys_sendmsg net/socket.c:2674 [inline] __x64_sys_sendmsg+0x307/0x4a0 net/socket.c:2674 do_syscall_64+0xd5/0x1f0 entry_SYSCALL_64_after_hwframe+0x6d/0x75
Uninit was stored to memory at: __nla_put lib/nlattr.c:1041 [inline] nla_put+0x1c6/0x230 lib/nlattr.c:1099 tcf_skbmod_dump+0x23f/0xc20 net/sched/act_skbmod.c:256 tcf_action_dump_old net/sched/act_api.c:1191 [inline] tcf_action_dump_1+0x85e/0x970 net/sched/act_api.c:1227 tcf_action_dump+0x1fd/0x460 net/sched/act_api.c:1251 tca_get_fill+0x519/0x7a0 net/sched/act_api.c:1628 tcf_add_notify_msg net/sched/act_api.c:2023 [inline] tcf_add_notify net/sched/act_api.c:2042 [inline] tcf_action_add net/sched/act_api.c:2071 [inline] tc_ctl_action+0x1365/0x19d0 net/sched/act_api.c:2119 rtnetlink_rcv_msg+0x1737/0x1900 net/core/rtnetlink.c:6595 netlink_rcv_skb+0x375/0x650 net/netlink/af_netli ---truncated---(CVE-2024-35893)
In the Linux kernel, the following vulnerability has been resolved:
nfc: nci: Fix uninit-value in nci_dev_up and nci_ntf_packet
syzbot reported the following uninit-value access issue [1][2]:
nci_rx_work() parses and processes received packet. When the payload length is zero, each message type handler reads uninitialized payload and KMSAN detects this issue. The receipt of a packet with a zero-size payload is considered unexpected, and therefore, such packets should be silently discarded.
This patch resolved this issue by checking payload size before calling each message type handler codes.(CVE-2024-35915)
In the Linux kernel, the following vulnerability has been resolved:
drm/arm/malidp: fix a possible null pointer dereference
In malidp_mw_connector_reset, new memory is allocated with kzalloc, but no check is performed. In order to prevent null pointer dereferencing, ensure that mw_state is checked before calling __drm_atomic_helper_connector_reset.(CVE-2024-36014)
In the Linux kernel, the following vulnerability has been resolved:
amd/amdkfd: sync all devices to wait all processes being evicted
If there are more than one device doing reset in parallel, the first device will call kfd_suspend_all_processes() to evict all processes on all devices, this call takes time to finish. other device will start reset and recover without waiting. if the process has not been evicted before doing recover, it will be restored, then caused page fault.(CVE-2024-36949)
In the Linux kernel, the following vulnerability has been resolved:
tcp: Fix shift-out-of-bounds in dctcp_update_alpha().
In dctcp_update_alpha(), we use a module parameter dctcp_shift_g as follows:
alpha -= min_not_zero(alpha, alpha >> dctcp_shift_g); ... delivered_ce <<= (10 - dctcp_shift_g);
It seems syzkaller started fuzzing module parameters and triggered shift-out-of-bounds [0] by setting 100 to dctcp_shift_g:
memcpy((void)0x20000080, "/sys/module/tcp_dctcp/parameters/dctcp_shift_g\000", 47); res = syscall(__NR_openat, /fd=/0xffffffffffffff9cul, /file=/0x20000080ul, /flags=/2ul, /mode=/0ul); memcpy((void)0x20000000, "100\000", 4); syscall(__NR_write, /fd=/r[0], /val=/0x20000000ul, /len=/4ul);
Let's limit the max value of dctcp_shift_g by param_set_uint_minmax().
With this patch:
# echo 10 > /sys/module/tcp_dctcp/parameters/dctcp_shift_g # cat /sys/module/tcp_dctcp/parameters/dctcp_shift_g 10 # echo 11 > /sys/module/tcp_dctcp/parameters/dctcp_shift_g -bash: echo: write error: Invalid argument
[0]: UBSAN: shift-out-of-bounds in net/ipv4/tcp_dctcp.c:143:12 shift exponent 100 is too large for 32-bit type 'u32' (aka 'unsigned int') CPU: 0 PID: 8083 Comm: syz-executor345 Not tainted 6.9.0-05151-g1b294a1f3561 #2 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x201/0x300 lib/dump_stack.c:114 ubsan_epilogue lib/ubsan.c:231 [inline] __ubsan_handle_shift_out_of_bounds+0x346/0x3a0 lib/ubsan.c:468 dctcp_update_alpha+0x540/0x570 net/ipv4/tcp_dctcp.c:143 tcp_in_ack_event net/ipv4/tcp_input.c:3802 [inline] tcp_ack+0x17b1/0x3bc0 net/ipv4/tcp_input.c:3948 tcp_rcv_state_process+0x57a/0x2290 net/ipv4/tcp_input.c:6711 tcp_v4_do_rcv+0x764/0xc40 net/ipv4/tcp_ipv4.c:1937 sk_backlog_rcv include/net/sock.h:1106 [inline] __release_sock+0x20f/0x350 net/core/sock.c:2983 release_sock+0x61/0x1f0 net/core/sock.c:3549 mptcp_subflow_shutdown+0x3d0/0x620 net/mptcp/protocol.c:2907 mptcp_check_send_data_fin+0x225/0x410 net/mptcp/protocol.c:2976 __mptcp_close+0x238/0xad0 net/mptcp/protocol.c:3072 mptcp_close+0x2a/0x1a0 net/mptcp/protocol.c:3127 inet_release+0x190/0x1f0 net/ipv4/af_inet.c:437 __sock_release net/socket.c:659 [inline] sock_close+0xc0/0x240 net/socket.c:1421 __fput+0x41b/0x890 fs/file_table.c:422 task_work_run+0x23b/0x300 kernel/task_work.c:180 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x9c8/0x2540 kernel/exit.c:878 do_group_exit+0x201/0x2b0 kernel/exit.c:1027 __do_sys_exit_group kernel/exit.c:1038 [inline] __se_sys_exit_group kernel/exit.c:1036 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1036 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xe4/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x67/0x6f RIP: 0033:0x7f6c2b5005b6 Code: Unable to access opcode bytes at 0x7f6c2b50058c. RSP: 002b:00007ffe883eb948 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f6c2b5862f0 RCX: 00007f6c2b5005b6 RDX: 0000000000000001 RSI: 000000000000003c RDI: 0000000000000001 RBP: 0000000000000001 R08: 00000000000000e7 R09: ffffffffffffffc0 R10: 0000000000000006 R11: 0000000000000246 R12: 00007f6c2b5862f0 R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 </TASK>(CVE-2024-37356)
In the Linux kernel, the following vulnerability has been resolved:
drm: vc4: Fix possible null pointer dereference
In vc4_hdmi_audio_init() of_get_address() may return NULL which is later dereferenced. Fix this bug by adding NULL check.
Found by Linux Verification Center (linuxtesting.org) with SVACE.(CVE-2024-38546)
In the Linux kernel, the following vulnerability has been resolved:
net: fec: remove .ndo_poll_controller to avoid deadlocks
There is a deadlock issue found in sungem driver, please refer to the commit ac0a230f719b ("eth: sungem: remove .ndo_poll_controller to avoid deadlocks"). The root cause of the issue is that netpoll is in atomic context and disable_irq() is called by .ndo_poll_controller interface of sungem driver, however, disable_irq() might sleep. After analyzing the implementation of fec_poll_controller(), the fec driver should have the same issue. Due to the fec driver uses NAPI for TX completions, the .ndo_poll_controller is unnecessary to be implemented in the fec driver, so fec_poll_controller() can be safely removed.(CVE-2024-38553)
In the Linux kernel, the following vulnerability has been resolved:
ax25: Fix reference count leak issue of net_device
There is a reference count leak issue of the object "net_device" in ax25_dev_device_down(). When the ax25 device is shutting down, the ax25_dev_device_down() drops the reference count of net_device one or zero times depending on if we goto unlock_put or not, which will cause memory leak.
In order to solve the above issue, decrease the reference count of net_device after dev->ax25_ptr is set to null.(CVE-2024-38554)
In the Linux kernel, the following vulnerability has been resolved:
scsi: qedf: Ensure the copied buf is NUL terminated
Currently, we allocate a count-sized kernel buffer and copy count from userspace to that buffer. Later, we use kstrtouint on this buffer but we don't ensure that the string is terminated inside the buffer, this can lead to OOB read when using kstrtouint. Fix this issue by using memdup_user_nul instead of memdup_user.(CVE-2024-38559)
In the Linux kernel, the following vulnerability has been resolved:
ecryptfs: Fix buffer size for tag 66 packet
The 'TAG 66 Packet Format' description is missing the cipher code and checksum fields that are packed into the message packet. As a result, the buffer allocated for the packet is 3 bytes too small and write_tag_66_packet() will write up to 3 bytes past the end of the buffer.
Fix this by increasing the size of the allocation so the whole packet will always fit in the buffer.
This fixes the below kasan slab-out-of-bounds bug:
BUG: KASAN: slab-out-of-bounds in ecryptfs_generate_key_packet_set+0x7d6/0xde0 Write of size 1 at addr ffff88800afbb2a5 by task touch/181
CPU: 0 PID: 181 Comm: touch Not tainted 6.6.13-gnu #1 4c9534092be820851bb687b82d1f92a426598dc6 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2/GNU Guix 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x4c/0x70 print_report+0xc5/0x610 ? ecryptfs_generate_key_packet_set+0x7d6/0xde0 ? kasan_complete_mode_report_info+0x44/0x210 ? ecryptfs_generate_key_packet_set+0x7d6/0xde0 kasan_report+0xc2/0x110 ? ecryptfs_generate_key_packet_set+0x7d6/0xde0 __asan_store1+0x62/0x80 ecryptfs_generate_key_packet_set+0x7d6/0xde0 ? __pfx_ecryptfs_generate_key_packet_set+0x10/0x10 ? __alloc_pages+0x2e2/0x540 ? __pfx_ovl_open+0x10/0x10 [overlay 30837f11141636a8e1793533a02e6e2e885dad1d] ? dentry_open+0x8f/0xd0 ecryptfs_write_metadata+0x30a/0x550 ? __pfx_ecryptfs_write_metadata+0x10/0x10 ? ecryptfs_get_lower_file+0x6b/0x190 ecryptfs_initialize_file+0x77/0x150 ecryptfs_create+0x1c2/0x2f0 path_openat+0x17cf/0x1ba0 ? __pfx_path_openat+0x10/0x10 do_filp_open+0x15e/0x290 ? __pfx_do_filp_open+0x10/0x10 ? __kasan_check_write+0x18/0x30 ? _raw_spin_lock+0x86/0xf0 ? __pfx__raw_spin_lock+0x10/0x10 ? __kasan_check_write+0x18/0x30 ? alloc_fd+0xf4/0x330 do_sys_openat2+0x122/0x160 ? __pfx_do_sys_openat2+0x10/0x10 __x64_sys_openat+0xef/0x170 ? __pfx___x64_sys_openat+0x10/0x10 do_syscall_64+0x60/0xd0 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 RIP: 0033:0x7f00a703fd67 Code: 25 00 00 41 00 3d 00 00 41 00 74 37 64 8b 04 25 18 00 00 00 85 c0 75 5b 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 85 00 00 00 48 83 c4 68 5d 41 5c c3 0f 1f RSP: 002b:00007ffc088e30b0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007ffc088e3368 RCX: 00007f00a703fd67 RDX: 0000000000000941 RSI: 00007ffc088e48d7 RDI: 00000000ffffff9c RBP: 00007ffc088e48d7 R08: 0000000000000001 R09: 0000000000000000 R10: 00000000000001b6 R11: 0000000000000246 R12: 0000000000000941 R13: 0000000000000000 R14: 00007ffc088e48d7 R15: 00007f00a7180040 </TASK>
Allocated by task 181: kasan_save_stack+0x2f/0x60 kasan_set_track+0x29/0x40 kasan_save_alloc_info+0x25/0x40 __kasan_kmalloc+0xc5/0xd0 __kmalloc+0x66/0x160 ecryptfs_generate_key_packet_set+0x6d2/0xde0 ecryptfs_write_metadata+0x30a/0x550 ecryptfs_initialize_file+0x77/0x150 ecryptfs_create+0x1c2/0x2f0 path_openat+0x17cf/0x1ba0 do_filp_open+0x15e/0x290 do_sys_openat2+0x122/0x160 __x64_sys_openat+0xef/0x170 do_syscall_64+0x60/0xd0 entry_SYSCALL_64_after_hwframe+0x6e/0xd8(CVE-2024-38578)
In the Linux kernel, the following vulnerability has been resolved:
crypto: bcm - Fix pointer arithmetic
In spu2_dump_omd() value of ptr is increased by ciph_key_len instead of hash_iv_len which could lead to going beyond the buffer boundaries. Fix this bug by changing ciph_key_len to hash_iv_len.
Found by Linux Verification Center (linuxtesting.org) with SVACE.(CVE-2024-38579)
In the Linux kernel, the following vulnerability has been resolved:
nilfs2: fix potential hang in nilfs_detach_log_writer()
Syzbot has reported a potential hang in nilfs_detach_log_writer() called during nilfs2 unmount.
Analysis revealed that this is because nilfs_segctor_sync(), which synchronizes with the log writer thread, can be called after nilfs_segctor_destroy() terminates that thread, as shown in the call trace below:
nilfs_detach_log_writer nilfs_segctor_destroy nilfs_segctor_kill_thread --> Shut down log writer thread flush_work nilfs_iput_work_func nilfs_dispose_list iput nilfs_evict_inode nilfs_transaction_commit nilfs_construct_segment (if inode needs sync) nilfs_segctor_sync --> Attempt to synchronize with log writer thread *** DEADLOCK ***
Fix this issue by changing nilfs_segctor_sync() so that the log writer thread returns normally without synchronizing after it terminates, and by forcing tasks that are already waiting to complete once after the thread terminates.
The skipped inode metadata flushout will then be processed together in the subsequent cleanup work in nilfs_segctor_destroy().(CVE-2024-38582)
In the Linux kernel, the following vulnerability has been resolved:
nilfs2: fix use-after-free of timer for log writer thread
Patch series "nilfs2: fix log writer related issues".
This bug fix series covers three nilfs2 log writer-related issues, including a timer use-after-free issue and potential deadlock issue on unmount, and a potential freeze issue in event synchronization found during their analysis. Details are described in each commit log.
This patch (of 3):
A use-after-free issue has been reported regarding the timer sc_timer on the nilfs_sc_info structure.
The problem is that even though it is used to wake up a sleeping log writer thread, sc_timer is not shut down until the nilfs_sc_info structure is about to be freed, and is used regardless of the thread's lifetime.
Fix this issue by limiting the use of sc_timer only while the log writer thread is alive.(CVE-2024-38583)
In the Linux kernel, the following vulnerability has been resolved:
ALSA: timer: Set lower bound of start tick time
Currently ALSA timer doesn't have the lower limit of the start tick time, and it allows a very small size, e.g. 1 tick with 1ns resolution for hrtimer. Such a situation may lead to an unexpected RCU stall, where the callback repeatedly queuing the expire update, as reported by fuzzer.
This patch introduces a sanity check of the timer start tick time, so that the system returns an error when a too small start size is set. As of this patch, the lower limit is hard-coded to 100us, which is small enough but can still work somehow.(CVE-2024-38618)
In the Linux kernel, the following vulnerability has been resolved:
serial: max3100: Update uart_driver_registered on driver removal
The removal of the last MAX3100 device triggers the removal of the driver. However, code doesn't update the respective global variable and after insmod — rmmod — insmod cycle the kernel oopses:
max3100 spi-PRP0001:01: max3100_probe: adding port 0 BUG: kernel NULL pointer dereference, address: 0000000000000408 ... RIP: 0010:serial_core_register_port+0xa0/0x840 ... max3100_probe+0x1b6/0x280 [max3100] spi_probe+0x8d/0xb0
Update the actual state so next time UART driver will be registered again.
Hugo also noticed, that the error path in the probe also affected by having the variable set, and not cleared. Instead of clearing it move the assignment after the successfull uart_register_driver() call.(CVE-2024-38633)
In the Linux kernel, the following vulnerability has been resolved:
serial: max3100: Lock port->lock when calling uart_handle_cts_change()
uart_handle_cts_change() has to be called with port lock taken, Since we run it in a separate work, the lock may not be taken at the time of running. Make sure that it's taken by explicitly doing that. Without it we got a splat:
WARNING: CPU: 0 PID: 10 at drivers/tty/serial/serial_core.c:3491 uart_handle_cts_change+0xa6/0xb0 ... Workqueue: max3100-0 max3100_work [max3100] RIP: 0010:uart_handle_cts_change+0xa6/0xb0 ... max3100_handlerx+0xc5/0x110 [max3100] max3100_work+0x12a/0x340 max3100
In the Linux kernel, the following vulnerability has been resolved:
greybus: lights: check return of get_channel_from_mode
If channel for the given node is not found we return null from get_channel_from_mode. Make sure we validate the return pointer before using it in two of the missing places.
This was originally reported in [0]: Found by Linux Verification Center (linuxtesting.org) with SVACE.
[0] https://lore.kernel.org/all/20240301190425.120605-1-m.lobanov@rosalinux.ru(CVE-2024-38637)
In the Linux kernel, the following vulnerability has been resolved:
enic: Validate length of nl attributes in enic_set_vf_port
enic_set_vf_port assumes that the nl attribute IFLA_PORT_PROFILE is of length PORT_PROFILE_MAX and that the nl attributes IFLA_PORT_INSTANCE_UUID, IFLA_PORT_HOST_UUID are of length PORT_UUID_MAX. These attributes are validated (in the function do_setlink in rtnetlink.c) using the nla_policy ifla_port_policy. The policy defines IFLA_PORT_PROFILE as NLA_STRING, IFLA_PORT_INSTANCE_UUID as NLA_BINARY and IFLA_PORT_HOST_UUID as NLA_STRING. That means that the length validation using the policy is for the max size of the attributes and not on exact size so the length of these attributes might be less than the sizes that enic_set_vf_port expects. This might cause an out of bands read access in the memcpys of the data of these attributes in enic_set_vf_port.(CVE-2024-38659)
In the Linux kernel, the following vulnerability has been resolved:
dma-buf/sw-sync: don't enable IRQ from sync_print_obj()
Since commit a6aa8fca4d79 ("dma-buf/sw-sync: Reduce irqsave/irqrestore from known context") by error replaced spin_unlock_irqrestore() with spin_unlock_irq() for both sync_debugfs_show() and sync_print_obj() despite sync_print_obj() is called from sync_debugfs_show(), lockdep complains inconsistent lock state warning.
Use plain spin_{lock,unlock}() for sync_print_obj(), for sync_debugfs_show() is already using spin_{lock,unlock}_irq().(CVE-2024-38780)
In the Linux kernel, the following vulnerability has been resolved:
net/9p: fix uninit-value in p9_client_rpc()
Syzbot with the help of KMSAN reported the following error:
BUG: KMSAN: uninit-value in trace_9p_client_res include/trace/events/9p.h:146 [inline] BUG: KMSAN: uninit-value in p9_client_rpc+0x1314/0x1340 net/9p/client.c:754 trace_9p_client_res include/trace/events/9p.h:146 [inline] p9_client_rpc+0x1314/0x1340 net/9p/client.c:754 p9_client_create+0x1551/0x1ff0 net/9p/client.c:1031 v9fs_session_init+0x1b9/0x28e0 fs/9p/v9fs.c:410 v9fs_mount+0xe2/0x12b0 fs/9p/vfs_super.c:122 legacy_get_tree+0x114/0x290 fs/fs_context.c:662 vfs_get_tree+0xa7/0x570 fs/super.c:1797 do_new_mount+0x71f/0x15e0 fs/namespace.c:3352 path_mount+0x742/0x1f20 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount+0x725/0x810 fs/namespace.c:3875 __x64_sys_mount+0xe4/0x150 fs/namespace.c:3875 do_syscall_64+0xd5/0x1f0 entry_SYSCALL_64_after_hwframe+0x6d/0x75
Uninit was created at: __alloc_pages+0x9d6/0xe70 mm/page_alloc.c:4598 __alloc_pages_node include/linux/gfp.h:238 [inline] alloc_pages_node include/linux/gfp.h:261 [inline] alloc_slab_page mm/slub.c:2175 [inline] allocate_slab mm/slub.c:2338 [inline] new_slab+0x2de/0x1400 mm/slub.c:2391 slaballoc+0x1184/0x33d0 mm/slub.c:3525 slab_alloc mm/slub.c:3610 [inline] __slab_alloc_node mm/slub.c:3663 [inline] slab_alloc_node mm/slub.c:3835 [inline] kmem_cache_alloc+0x6d3/0xbe0 mm/slub.c:3852 p9_tag_alloc net/9p/client.c:278 [inline] p9_client_prepare_req+0x20a/0x1770 net/9p/client.c:641 p9_client_rpc+0x27e/0x1340 net/9p/client.c:688 p9_client_create+0x1551/0x1ff0 net/9p/client.c:1031 v9fs_session_init+0x1b9/0x28e0 fs/9p/v9fs.c:410 v9fs_mount+0xe2/0x12b0 fs/9p/vfs_super.c:122 legacy_get_tree+0x114/0x290 fs/fs_context.c:662 vfs_get_tree+0xa7/0x570 fs/super.c:1797 do_new_mount+0x71f/0x15e0 fs/namespace.c:3352 path_mount+0x742/0x1f20 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount+0x725/0x810 fs/namespace.c:3875 __x64_sys_mount+0xe4/0x150 fs/namespace.c:3875 do_syscall_64+0xd5/0x1f0 entry_SYSCALL_64_after_hwframe+0x6d/0x75
If p9_check_errors() fails early in p9_client_rpc(), req->rc.tag will not be properly initialized. However, trace_9p_client_res() ends up trying to print it out anyway before p9_client_rpc() finishes.
Fix this issue by assigning default values to p9_fcall fields such as 'tag' and (just in case KMSAN unearths something new) 'id' during the tag allocation stage.(CVE-2024-39301)
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{
"affected": [
{
"ecosystem_specific": {
"aarch64": [
"bpftool-4.19.90-2407.3.0.0285.oe2003sp4.aarch64.rpm",
"bpftool-debuginfo-4.19.90-2407.3.0.0285.oe2003sp4.aarch64.rpm",
"kernel-4.19.90-2407.3.0.0285.oe2003sp4.aarch64.rpm",
"kernel-debuginfo-4.19.90-2407.3.0.0285.oe2003sp4.aarch64.rpm",
"kernel-debugsource-4.19.90-2407.3.0.0285.oe2003sp4.aarch64.rpm",
"kernel-devel-4.19.90-2407.3.0.0285.oe2003sp4.aarch64.rpm",
"kernel-source-4.19.90-2407.3.0.0285.oe2003sp4.aarch64.rpm",
"kernel-tools-4.19.90-2407.3.0.0285.oe2003sp4.aarch64.rpm",
"kernel-tools-debuginfo-4.19.90-2407.3.0.0285.oe2003sp4.aarch64.rpm",
"kernel-tools-devel-4.19.90-2407.3.0.0285.oe2003sp4.aarch64.rpm",
"perf-4.19.90-2407.3.0.0285.oe2003sp4.aarch64.rpm",
"perf-debuginfo-4.19.90-2407.3.0.0285.oe2003sp4.aarch64.rpm",
"python2-perf-4.19.90-2407.3.0.0285.oe2003sp4.aarch64.rpm",
"python2-perf-debuginfo-4.19.90-2407.3.0.0285.oe2003sp4.aarch64.rpm",
"python3-perf-4.19.90-2407.3.0.0285.oe2003sp4.aarch64.rpm",
"python3-perf-debuginfo-4.19.90-2407.3.0.0285.oe2003sp4.aarch64.rpm"
],
"src": [
"kernel-4.19.90-2407.3.0.0285.oe2003sp4.src.rpm"
],
"x86_64": [
"bpftool-4.19.90-2407.3.0.0285.oe2003sp4.x86_64.rpm",
"bpftool-debuginfo-4.19.90-2407.3.0.0285.oe2003sp4.x86_64.rpm",
"kernel-4.19.90-2407.3.0.0285.oe2003sp4.x86_64.rpm",
"kernel-debuginfo-4.19.90-2407.3.0.0285.oe2003sp4.x86_64.rpm",
"kernel-debugsource-4.19.90-2407.3.0.0285.oe2003sp4.x86_64.rpm",
"kernel-devel-4.19.90-2407.3.0.0285.oe2003sp4.x86_64.rpm",
"kernel-source-4.19.90-2407.3.0.0285.oe2003sp4.x86_64.rpm",
"kernel-tools-4.19.90-2407.3.0.0285.oe2003sp4.x86_64.rpm",
"kernel-tools-debuginfo-4.19.90-2407.3.0.0285.oe2003sp4.x86_64.rpm",
"kernel-tools-devel-4.19.90-2407.3.0.0285.oe2003sp4.x86_64.rpm",
"perf-4.19.90-2407.3.0.0285.oe2003sp4.x86_64.rpm",
"perf-debuginfo-4.19.90-2407.3.0.0285.oe2003sp4.x86_64.rpm",
"python2-perf-4.19.90-2407.3.0.0285.oe2003sp4.x86_64.rpm",
"python2-perf-debuginfo-4.19.90-2407.3.0.0285.oe2003sp4.x86_64.rpm",
"python3-perf-4.19.90-2407.3.0.0285.oe2003sp4.x86_64.rpm",
"python3-perf-debuginfo-4.19.90-2407.3.0.0285.oe2003sp4.x86_64.rpm"
]
},
"package": {
"ecosystem": "openEuler:20.03-LTS-SP4",
"name": "kernel",
"purl": "pkg:rpm/openEuler/kernel\u0026distro=openEuler-20.03-LTS-SP4"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.19.90-2407.3.0.0285.oe2003sp4"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"severity": "High"
},
"details": "The Linux Kernel, the operating system core itself.\r\n\r\nSecurity Fix(es):\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nusb: fix various gadgets null ptr deref on 10gbps cabling.\r\n\r\nThis avoids a null pointer dereference in\nf_{ecm,eem,hid,loopback,printer,rndis,serial,sourcesink,subset,tcm}\nby simply reusing the 5gbps config for 10gbps.(CVE-2021-47270)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nseg6: fix the iif in the IPv6 socket control block\r\n\r\nWhen an IPv4 packet is received, the ip_rcv_core(...) sets the receiving\ninterface index into the IPv4 socket control block (v5.16-rc4,\nnet/ipv4/ip_input.c line 510):\r\n\r\n IPCB(skb)-\u0026gt;iif = skb-\u0026gt;skb_iif;\r\n\r\nIf that IPv4 packet is meant to be encapsulated in an outer IPv6+SRH\nheader, the seg6_do_srh_encap(...) performs the required encapsulation.\nIn this case, the seg6_do_srh_encap function clears the IPv6 socket control\nblock (v5.16-rc4 net/ipv6/seg6_iptunnel.c line 163):\r\n\r\n memset(IP6CB(skb), 0, sizeof(*IP6CB(skb)));\r\n\r\nThe memset(...) was introduced in commit ef489749aae5 (\u0026quot;ipv6: sr: clear\nIP6CB(skb) on SRH ip4ip6 encapsulation\u0026quot;) a long time ago (2019-01-29).\r\n\r\nSince the IPv6 socket control block and the IPv4 socket control block share\nthe same memory area (skb-\u0026gt;cb), the receiving interface index info is lost\n(IP6CB(skb)-\u0026gt;iif is set to zero).\r\n\r\nAs a side effect, that condition triggers a NULL pointer dereference if\ncommit 0857d6f8c759 (\u0026quot;ipv6: When forwarding count rx stats on the orig\nnetdev\u0026quot;) is applied.\r\n\r\nTo fix that issue, we set the IP6CB(skb)-\u0026gt;iif with the index of the\nreceiving interface once again.(CVE-2021-47515)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nmedia: mxl111sf: change mutex_init() location\r\n\r\nSyzbot reported, that mxl111sf_ctrl_msg() uses uninitialized\nmutex. The problem was in wrong mutex_init() location.\r\n\r\nPrevious mutex_init(\u0026amp;state-\u0026gt;msg_lock) call was in -\u0026gt;init() function, but\ndvb_usbv2_init() has this order of calls:\r\n\r\n\tdvb_usbv2_init()\n\t dvb_usbv2_adapter_init()\n\t dvb_usbv2_adapter_frontend_init()\n\t props-\u0026gt;frontend_attach()\r\n\r\n\t props-\u0026gt;init()\r\n\r\nSince mxl111sf_* devices call mxl111sf_ctrl_msg() in -\u0026gt;frontend_attach()\ninternally we need to initialize state-\u0026gt;msg_lock before\nfrontend_attach(). To achieve it, -\u0026gt;probe() call added to all mxl111sf_*\ndevices, which will simply initiaize mutex.(CVE-2021-47583)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nmac80211: validate extended element ID is present\r\n\r\nBefore attempting to parse an extended element, verify that\nthe extended element ID is present.(CVE-2021-47611)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ni40e: Fix queues reservation for XDP\r\n\r\nWhen XDP was configured on a system with large number of CPUs\nand X722 NIC there was a call trace with NULL pointer dereference.\r\n\r\ni40e 0000:87:00.0: failed to get tracking for 256 queues for VSI 0 err -12\ni40e 0000:87:00.0: setup of MAIN VSI failed\r\n\r\nBUG: kernel NULL pointer dereference, address: 0000000000000000\nRIP: 0010:i40e_xdp+0xea/0x1b0 [i40e]\nCall Trace:\n? i40e_reconfig_rss_queues+0x130/0x130 [i40e]\ndev_xdp_install+0x61/0xe0\ndev_xdp_attach+0x18a/0x4c0\ndev_change_xdp_fd+0x1e6/0x220\ndo_setlink+0x616/0x1030\n? ahci_port_stop+0x80/0x80\n? ata_qc_issue+0x107/0x1e0\n? lock_timer_base+0x61/0x80\n? __mod_timer+0x202/0x380\nrtnl_setlink+0xe5/0x170\n? bpf_lsm_binder_transaction+0x10/0x10\n? security_capable+0x36/0x50\nrtnetlink_rcv_msg+0x121/0x350\n? rtnl_calcit.isra.0+0x100/0x100\nnetlink_rcv_skb+0x50/0xf0\nnetlink_unicast+0x1d3/0x2a0\nnetlink_sendmsg+0x22a/0x440\nsock_sendmsg+0x5e/0x60\n__sys_sendto+0xf0/0x160\n? __sys_getsockname+0x7e/0xc0\n? _copy_from_user+0x3c/0x80\n? __sys_setsockopt+0xc8/0x1a0\n__x64_sys_sendto+0x20/0x30\ndo_syscall_64+0x33/0x40\nentry_SYSCALL_64_after_hwframe+0x44/0xae\nRIP: 0033:0x7f83fa7a39e0\r\n\r\nThis was caused by PF queue pile fragmentation due to\nflow director VSI queue being placed right after main VSI.\nBecause of this main VSI was not able to resize its\nqueue allocation for XDP resulting in no queues allocated\nfor main VSI when XDP was turned on.\r\n\r\nFix this by always allocating last queue in PF queue pile\nfor a flow director VSI.(CVE-2021-47619)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nASoC: max9759: fix underflow in speaker_gain_control_put()\r\n\r\nCheck for negative values of \u0026quot;priv-\u0026gt;gain\u0026quot; to prevent an out of bounds\naccess. The concern is that these might come from the user via:\n -\u0026gt; snd_ctl_elem_write_user()\n -\u0026gt; snd_ctl_elem_write()\n -\u0026gt; kctl-\u0026gt;put()(CVE-2022-48717)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nnet: ieee802154: ca8210: Stop leaking skb\u0026apos;s\r\n\r\nUpon error the ieee802154_xmit_complete() helper is not called. Only\nieee802154_wake_queue() is called manually. We then leak the skb\nstructure.\r\n\r\nFree the skb structure upon error before returning.(CVE-2022-48722)\r\n\r\nRejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.(CVE-2022-48736)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nASoC: ops: Reject out of bounds values in snd_soc_put_volsw()\r\n\r\nWe don\u0026apos;t currently validate that the values being set are within the range\nwe advertised to userspace as being valid, do so and reject any values\nthat are out of range.(CVE-2022-48738)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nnet: amd-xgbe: Fix skb data length underflow\r\n\r\nThere will be BUG_ON() triggered in include/linux/skbuff.h leading to\nintermittent kernel panic, when the skb length underflow is detected.\r\n\r\nFix this by dropping the packet if such length underflows are seen\nbecause of inconsistencies in the hardware descriptors.(CVE-2022-48743)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nnet/mlx5e: Avoid field-overflowing memcpy()\r\n\r\nIn preparation for FORTIFY_SOURCE performing compile-time and run-time\nfield bounds checking for memcpy(), memmove(), and memset(), avoid\nintentionally writing across neighboring fields.\r\n\r\nUse flexible arrays instead of zero-element arrays (which look like they\nare always overflowing) and split the cross-field memcpy() into two halves\nthat can be appropriately bounds-checked by the compiler.\r\n\r\nWe were doing:\r\n\r\n\t#define ETH_HLEN 14\n\t#define VLAN_HLEN 4\n\t...\n\t#define MLX5E_XDP_MIN_INLINE (ETH_HLEN + VLAN_HLEN)\n\t...\n struct mlx5e_tx_wqe *wqe = mlx5_wq_cyc_get_wqe(wq, pi);\n\t...\n struct mlx5_wqe_eth_seg *eseg = \u0026amp;wqe-\u0026gt;eth;\n struct mlx5_wqe_data_seg *dseg = wqe-\u0026gt;data;\n\t...\n\tmemcpy(eseg-\u0026gt;inline_hdr.start, xdptxd-\u0026gt;data, MLX5E_XDP_MIN_INLINE);\r\n\r\ntarget is wqe-\u0026gt;eth.inline_hdr.start (which the compiler sees as being\n2 bytes in size), but copying 18, intending to write across start\n(really vlan_tci, 2 bytes). The remaining 16 bytes get written into\nwqe-\u0026gt;data[0], covering byte_count (4 bytes), lkey (4 bytes), and addr\n(8 bytes).\r\n\r\nstruct mlx5e_tx_wqe {\n struct mlx5_wqe_ctrl_seg ctrl; /* 0 16 */\n struct mlx5_wqe_eth_seg eth; /* 16 16 */\n struct mlx5_wqe_data_seg data[]; /* 32 0 */\r\n\r\n /* size: 32, cachelines: 1, members: 3 */\n /* last cacheline: 32 bytes */\n};\r\n\r\nstruct mlx5_wqe_eth_seg {\n u8 swp_outer_l4_offset; /* 0 1 */\n u8 swp_outer_l3_offset; /* 1 1 */\n u8 swp_inner_l4_offset; /* 2 1 */\n u8 swp_inner_l3_offset; /* 3 1 */\n u8 cs_flags; /* 4 1 */\n u8 swp_flags; /* 5 1 */\n __be16 mss; /* 6 2 */\n __be32 flow_table_metadata; /* 8 4 */\n union {\n struct {\n __be16 sz; /* 12 2 */\n u8 start[2]; /* 14 2 */\n } inline_hdr; /* 12 4 */\n struct {\n __be16 type; /* 12 2 */\n __be16 vlan_tci; /* 14 2 */\n } insert; /* 12 4 */\n __be32 trailer; /* 12 4 */\n }; /* 12 4 */\r\n\r\n /* size: 16, cachelines: 1, members: 9 */\n /* last cacheline: 16 bytes */\n};\r\n\r\nstruct mlx5_wqe_data_seg {\n __be32 byte_count; /* 0 4 */\n __be32 lkey; /* 4 4 */\n __be64 addr; /* 8 8 */\r\n\r\n /* size: 16, cachelines: 1, members: 3 */\n /* last cacheline: 16 bytes */\n};\r\n\r\nSo, split the memcpy() so the compiler can reason about the buffer\nsizes.\r\n\r\n\u0026quot;pahole\u0026quot; shows no size nor member offset changes to struct mlx5e_tx_wqe\nnor struct mlx5e_umr_wqe. \u0026quot;objdump -d\u0026quot; shows no meaningful object\ncode changes (i.e. only source line number induced differences and\noptimizations).(CVE-2022-48744)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nscsi: bnx2fc: Flush destroy_work queue before calling bnx2fc_interface_put()\r\n\r\nThe bnx2fc_destroy() functions are removing the interface before calling\ndestroy_work. This results multiple WARNings from sysfs_remove_group() as\nthe controller rport device attributes are removed too early.\r\n\r\nReplace the fcoe_port\u0026apos;s destroy_work queue. It\u0026apos;s not needed.\r\n\r\nThe problem is easily reproducible with the following steps.\r\n\r\nExample:\r\n\r\n $ dmesg -w \u0026amp;\n $ systemctl enable --now fcoe\n $ fipvlan -s -c ens2f1\n $ fcoeadm -d ens2f1.802\n [ 583.464488] host2: libfc: Link down on port (7500a1)\n [ 583.472651] bnx2fc: 7500a1 - rport not created Yet!!\n [ 583.490468] ------------[ cut here ]------------\n [ 583.538725] sysfs group \u0026apos;power\u0026apos; not found for kobject \u0026apos;rport-2:0-0\u0026apos;\n [ 583.568814] WARNING: CPU: 3 PID: 192 at fs/sysfs/group.c:279 sysfs_remove_group+0x6f/0x80\n [ 583.607130] Modules linked in: dm_service_time 8021q garp mrp stp llc bnx2fc cnic uio rpcsec_gss_krb5 auth_rpcgss nfsv4 ...\n [ 583.942994] CPU: 3 PID: 192 Comm: kworker/3:2 Kdump: loaded Not tainted 5.14.0-39.el9.x86_64 #1\n [ 583.984105] Hardware name: HP ProLiant DL120 G7, BIOS J01 07/01/2013\n [ 584.016535] Workqueue: fc_wq_2 fc_rport_final_delete [scsi_transport_fc]\n [ 584.050691] RIP: 0010:sysfs_remove_group+0x6f/0x80\n [ 584.074725] Code: ff 5b 48 89 ef 5d 41 5c e9 ee c0 ff ff 48 89 ef e8 f6 b8 ff ff eb d1 49 8b 14 24 48 8b 33 48 c7 c7 ...\n [ 584.162586] RSP: 0018:ffffb567c15afdc0 EFLAGS: 00010282\n [ 584.188225] RAX: 0000000000000000 RBX: ffffffff8eec4220 RCX: 0000000000000000\n [ 584.221053] RDX: ffff8c1586ce84c0 RSI: ffff8c1586cd7cc0 RDI: ffff8c1586cd7cc0\n [ 584.255089] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffb567c15afc00\n [ 584.287954] R10: ffffb567c15afbf8 R11: ffffffff8fbe7f28 R12: ffff8c1486326400\n [ 584.322356] R13: ffff8c1486326480 R14: ffff8c1483a4a000 R15: 0000000000000004\n [ 584.355379] FS: 0000000000000000(0000) GS:ffff8c1586cc0000(0000) knlGS:0000000000000000\n [ 584.394419] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n [ 584.421123] CR2: 00007fe95a6f7840 CR3: 0000000107674002 CR4: 00000000000606e0\n [ 584.454888] Call Trace:\n [ 584.466108] device_del+0xb2/0x3e0\n [ 584.481701] device_unregister+0x13/0x60\n [ 584.501306] bsg_unregister_queue+0x5b/0x80\n [ 584.522029] bsg_remove_queue+0x1c/0x40\n [ 584.541884] fc_rport_final_delete+0xf3/0x1d0 [scsi_transport_fc]\n [ 584.573823] process_one_work+0x1e3/0x3b0\n [ 584.592396] worker_thread+0x50/0x3b0\n [ 584.609256] ? rescuer_thread+0x370/0x370\n [ 584.628877] kthread+0x149/0x170\n [ 584.643673] ? set_kthread_struct+0x40/0x40\n [ 584.662909] ret_from_fork+0x22/0x30\n [ 584.680002] ---[ end trace 53575ecefa942ece ]---(CVE-2022-48758)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nmedia: lgdt3306a: Add a check against null-pointer-def\r\n\r\nThe driver should check whether the client provides the platform_data.\r\n\r\nThe following log reveals it:\r\n\r\n[ 29.610324] BUG: KASAN: null-ptr-deref in kmemdup+0x30/0x40\n[ 29.610730] Read of size 40 at addr 0000000000000000 by task bash/414\n[ 29.612820] Call Trace:\n[ 29.613030] \u0026lt;TASK\u0026gt;\n[ 29.613201] dump_stack_lvl+0x56/0x6f\n[ 29.613496] ? kmemdup+0x30/0x40\n[ 29.613754] print_report.cold+0x494/0x6b7\n[ 29.614082] ? kmemdup+0x30/0x40\n[ 29.614340] kasan_report+0x8a/0x190\n[ 29.614628] ? kmemdup+0x30/0x40\n[ 29.614888] kasan_check_range+0x14d/0x1d0\n[ 29.615213] memcpy+0x20/0x60\n[ 29.615454] kmemdup+0x30/0x40\n[ 29.615700] lgdt3306a_probe+0x52/0x310\n[ 29.616339] i2c_device_probe+0x951/0xa90(CVE-2022-48772)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nmmc: sdio: fix possible resource leaks in some error paths\r\n\r\nIf sdio_add_func() or sdio_init_func() fails, sdio_remove_func() can\nnot release the resources, because the sdio function is not presented\nin these two cases, it won\u0026apos;t call of_node_put() or put_device().\r\n\r\nTo fix these leaks, make sdio_func_present() only control whether\ndevice_del() needs to be called or not, then always call of_node_put()\nand put_device().\r\n\r\nIn error case in sdio_init_func(), the reference of \u0026apos;card-\u0026gt;dev\u0026apos; is\nnot get, to avoid redundant put in sdio_free_func_cis(), move the\nget_device() to sdio_alloc_func() and put_device() to sdio_release_func(),\nit can keep the get/put function be balanced.\r\n\r\nWithout this patch, while doing fault inject test, it can get the\nfollowing leak reports, after this fix, the leak is gone.\r\n\r\nunreferenced object 0xffff888112514000 (size 2048):\n comm \u0026quot;kworker/3:2\u0026quot;, pid 65, jiffies 4294741614 (age 124.774s)\n hex dump (first 32 bytes):\n 00 e0 6f 12 81 88 ff ff 60 58 8d 06 81 88 ff ff ..o.....`X......\n 10 40 51 12 81 88 ff ff 10 40 51 12 81 88 ff ff .@Q......@Q.....\n backtrace:\n [\u0026lt;000000009e5931da\u0026gt;] kmalloc_trace+0x21/0x110\n [\u0026lt;000000002f839ccb\u0026gt;] mmc_alloc_card+0x38/0xb0 [mmc_core]\n [\u0026lt;0000000004adcbf6\u0026gt;] mmc_sdio_init_card+0xde/0x170 [mmc_core]\n [\u0026lt;000000007538fea0\u0026gt;] mmc_attach_sdio+0xcb/0x1b0 [mmc_core]\n [\u0026lt;00000000d4fdeba7\u0026gt;] mmc_rescan+0x54a/0x640 [mmc_core]\r\n\r\nunreferenced object 0xffff888112511000 (size 2048):\n comm \u0026quot;kworker/3:2\u0026quot;, pid 65, jiffies 4294741623 (age 124.766s)\n hex dump (first 32 bytes):\n 00 40 51 12 81 88 ff ff e0 58 8d 06 81 88 ff ff .@Q......X......\n 10 10 51 12 81 88 ff ff 10 10 51 12 81 88 ff ff ..Q.......Q.....\n backtrace:\n [\u0026lt;000000009e5931da\u0026gt;] kmalloc_trace+0x21/0x110\n [\u0026lt;00000000fcbe706c\u0026gt;] sdio_alloc_func+0x35/0x100 [mmc_core]\n [\u0026lt;00000000c68f4b50\u0026gt;] mmc_attach_sdio.cold.18+0xb1/0x395 [mmc_core]\n [\u0026lt;00000000d4fdeba7\u0026gt;] mmc_rescan+0x54a/0x640 [mmc_core](CVE-2023-52730)\r\n\r\nIn the Linux kernel through 6.7.1, there is a use-after-free in cec_queue_msg_fh, related to drivers/media/cec/core/cec-adap.c and drivers/media/cec/core/cec-api.c.(CVE-2024-23848)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ngenirq/cpuhotplug, x86/vector: Prevent vector leak during CPU offline\r\n\r\nThe absence of IRQD_MOVE_PCNTXT prevents immediate effectiveness of\ninterrupt affinity reconfiguration via procfs. Instead, the change is\ndeferred until the next instance of the interrupt being triggered on the\noriginal CPU.\r\n\r\nWhen the interrupt next triggers on the original CPU, the new affinity is\nenforced within __irq_move_irq(). A vector is allocated from the new CPU,\nbut the old vector on the original CPU remains and is not immediately\nreclaimed. Instead, apicd-\u0026gt;move_in_progress is flagged, and the reclaiming\nprocess is delayed until the next trigger of the interrupt on the new CPU.\r\n\r\nUpon the subsequent triggering of the interrupt on the new CPU,\nirq_complete_move() adds a task to the old CPU\u0026apos;s vector_cleanup list if it\nremains online. Subsequently, the timer on the old CPU iterates over its\nvector_cleanup list, reclaiming old vectors.\r\n\r\nHowever, a rare scenario arises if the old CPU is outgoing before the\ninterrupt triggers again on the new CPU.\r\n\r\nIn that case irq_force_complete_move() is not invoked on the outgoing CPU\nto reclaim the old apicd-\u0026gt;prev_vector because the interrupt isn\u0026apos;t currently\naffine to the outgoing CPU, and irq_needs_fixup() returns false. Even\nthough __vector_schedule_cleanup() is later called on the new CPU, it\ndoesn\u0026apos;t reclaim apicd-\u0026gt;prev_vector; instead, it simply resets both\napicd-\u0026gt;move_in_progress and apicd-\u0026gt;prev_vector to 0.\r\n\r\nAs a result, the vector remains unreclaimed in vector_matrix, leading to a\nCPU vector leak.\r\n\r\nTo address this issue, move the invocation of irq_force_complete_move()\nbefore the irq_needs_fixup() call to reclaim apicd-\u0026gt;prev_vector, if the\ninterrupt is currently or used to be affine to the outgoing CPU.\r\n\r\nAdditionally, reclaim the vector in __vector_schedule_cleanup() as well,\nfollowing a warning message, although theoretically it should never see\napicd-\u0026gt;move_in_progress with apicd-\u0026gt;prev_cpu pointing to an offline CPU.(CVE-2024-31076)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nnet/sched: act_skbmod: prevent kernel-infoleak\r\n\r\nsyzbot found that tcf_skbmod_dump() was copying four bytes\nfrom kernel stack to user space [1].\r\n\r\nThe issue here is that \u0026apos;struct tc_skbmod\u0026apos; has a four bytes hole.\r\n\r\nWe need to clear the structure before filling fields.\r\n\r\n[1]\nBUG: KMSAN: kernel-infoleak in instrument_copy_to_user include/linux/instrumented.h:114 [inline]\n BUG: KMSAN: kernel-infoleak in copy_to_user_iter lib/iov_iter.c:24 [inline]\n BUG: KMSAN: kernel-infoleak in iterate_ubuf include/linux/iov_iter.h:29 [inline]\n BUG: KMSAN: kernel-infoleak in iterate_and_advance2 include/linux/iov_iter.h:245 [inline]\n BUG: KMSAN: kernel-infoleak in iterate_and_advance include/linux/iov_iter.h:271 [inline]\n BUG: KMSAN: kernel-infoleak in _copy_to_iter+0x366/0x2520 lib/iov_iter.c:185\n instrument_copy_to_user include/linux/instrumented.h:114 [inline]\n copy_to_user_iter lib/iov_iter.c:24 [inline]\n iterate_ubuf include/linux/iov_iter.h:29 [inline]\n iterate_and_advance2 include/linux/iov_iter.h:245 [inline]\n iterate_and_advance include/linux/iov_iter.h:271 [inline]\n _copy_to_iter+0x366/0x2520 lib/iov_iter.c:185\n copy_to_iter include/linux/uio.h:196 [inline]\n simple_copy_to_iter net/core/datagram.c:532 [inline]\n __skb_datagram_iter+0x185/0x1000 net/core/datagram.c:420\n skb_copy_datagram_iter+0x5c/0x200 net/core/datagram.c:546\n skb_copy_datagram_msg include/linux/skbuff.h:4050 [inline]\n netlink_recvmsg+0x432/0x1610 net/netlink/af_netlink.c:1962\n sock_recvmsg_nosec net/socket.c:1046 [inline]\n sock_recvmsg+0x2c4/0x340 net/socket.c:1068\n __sys_recvfrom+0x35a/0x5f0 net/socket.c:2242\n __do_sys_recvfrom net/socket.c:2260 [inline]\n __se_sys_recvfrom net/socket.c:2256 [inline]\n __x64_sys_recvfrom+0x126/0x1d0 net/socket.c:2256\n do_syscall_64+0xd5/0x1f0\n entry_SYSCALL_64_after_hwframe+0x6d/0x75\r\n\r\nUninit was stored to memory at:\n pskb_expand_head+0x30f/0x19d0 net/core/skbuff.c:2253\n netlink_trim+0x2c2/0x330 net/netlink/af_netlink.c:1317\n netlink_unicast+0x9f/0x1260 net/netlink/af_netlink.c:1351\n nlmsg_unicast include/net/netlink.h:1144 [inline]\n nlmsg_notify+0x21d/0x2f0 net/netlink/af_netlink.c:2610\n rtnetlink_send+0x73/0x90 net/core/rtnetlink.c:741\n rtnetlink_maybe_send include/linux/rtnetlink.h:17 [inline]\n tcf_add_notify net/sched/act_api.c:2048 [inline]\n tcf_action_add net/sched/act_api.c:2071 [inline]\n tc_ctl_action+0x146e/0x19d0 net/sched/act_api.c:2119\n rtnetlink_rcv_msg+0x1737/0x1900 net/core/rtnetlink.c:6595\n netlink_rcv_skb+0x375/0x650 net/netlink/af_netlink.c:2559\n rtnetlink_rcv+0x34/0x40 net/core/rtnetlink.c:6613\n netlink_unicast_kernel net/netlink/af_netlink.c:1335 [inline]\n netlink_unicast+0xf4c/0x1260 net/netlink/af_netlink.c:1361\n netlink_sendmsg+0x10df/0x11f0 net/netlink/af_netlink.c:1905\n sock_sendmsg_nosec net/socket.c:730 [inline]\n __sock_sendmsg+0x30f/0x380 net/socket.c:745\n ____sys_sendmsg+0x877/0xb60 net/socket.c:2584\n ___sys_sendmsg+0x28d/0x3c0 net/socket.c:2638\n __sys_sendmsg net/socket.c:2667 [inline]\n __do_sys_sendmsg net/socket.c:2676 [inline]\n __se_sys_sendmsg net/socket.c:2674 [inline]\n __x64_sys_sendmsg+0x307/0x4a0 net/socket.c:2674\n do_syscall_64+0xd5/0x1f0\n entry_SYSCALL_64_after_hwframe+0x6d/0x75\r\n\r\nUninit was stored to memory at:\n __nla_put lib/nlattr.c:1041 [inline]\n nla_put+0x1c6/0x230 lib/nlattr.c:1099\n tcf_skbmod_dump+0x23f/0xc20 net/sched/act_skbmod.c:256\n tcf_action_dump_old net/sched/act_api.c:1191 [inline]\n tcf_action_dump_1+0x85e/0x970 net/sched/act_api.c:1227\n tcf_action_dump+0x1fd/0x460 net/sched/act_api.c:1251\n tca_get_fill+0x519/0x7a0 net/sched/act_api.c:1628\n tcf_add_notify_msg net/sched/act_api.c:2023 [inline]\n tcf_add_notify net/sched/act_api.c:2042 [inline]\n tcf_action_add net/sched/act_api.c:2071 [inline]\n tc_ctl_action+0x1365/0x19d0 net/sched/act_api.c:2119\n rtnetlink_rcv_msg+0x1737/0x1900 net/core/rtnetlink.c:6595\n netlink_rcv_skb+0x375/0x650 net/netlink/af_netli\n---truncated---(CVE-2024-35893)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nnfc: nci: Fix uninit-value in nci_dev_up and nci_ntf_packet\r\n\r\nsyzbot reported the following uninit-value access issue [1][2]:\r\n\r\nnci_rx_work() parses and processes received packet. When the payload\nlength is zero, each message type handler reads uninitialized payload\nand KMSAN detects this issue. The receipt of a packet with a zero-size\npayload is considered unexpected, and therefore, such packets should be\nsilently discarded.\r\n\r\nThis patch resolved this issue by checking payload size before calling\neach message type handler codes.(CVE-2024-35915)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ndrm/arm/malidp: fix a possible null pointer dereference\r\n\r\nIn malidp_mw_connector_reset, new memory is allocated with kzalloc, but\nno check is performed. In order to prevent null pointer dereferencing,\nensure that mw_state is checked before calling\n__drm_atomic_helper_connector_reset.(CVE-2024-36014)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\namd/amdkfd: sync all devices to wait all processes being evicted\r\n\r\nIf there are more than one device doing reset in parallel, the first\ndevice will call kfd_suspend_all_processes() to evict all processes\non all devices, this call takes time to finish. other device will\nstart reset and recover without waiting. if the process has not been\nevicted before doing recover, it will be restored, then caused page\nfault.(CVE-2024-36949)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ntcp: Fix shift-out-of-bounds in dctcp_update_alpha().\r\n\r\nIn dctcp_update_alpha(), we use a module parameter dctcp_shift_g\nas follows:\r\n\r\n alpha -= min_not_zero(alpha, alpha \u0026gt;\u0026gt; dctcp_shift_g);\n ...\n delivered_ce \u0026lt;\u0026lt;= (10 - dctcp_shift_g);\r\n\r\nIt seems syzkaller started fuzzing module parameters and triggered\nshift-out-of-bounds [0] by setting 100 to dctcp_shift_g:\r\n\r\n memcpy((void*)0x20000080,\n \u0026quot;/sys/module/tcp_dctcp/parameters/dctcp_shift_g\\000\u0026quot;, 47);\n res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x20000080ul,\n /*flags=*/2ul, /*mode=*/0ul);\n memcpy((void*)0x20000000, \u0026quot;100\\000\u0026quot;, 4);\n syscall(__NR_write, /*fd=*/r[0], /*val=*/0x20000000ul, /*len=*/4ul);\r\n\r\nLet\u0026apos;s limit the max value of dctcp_shift_g by param_set_uint_minmax().\r\n\r\nWith this patch:\r\n\r\n # echo 10 \u0026gt; /sys/module/tcp_dctcp/parameters/dctcp_shift_g\n # cat /sys/module/tcp_dctcp/parameters/dctcp_shift_g\n 10\n # echo 11 \u0026gt; /sys/module/tcp_dctcp/parameters/dctcp_shift_g\n -bash: echo: write error: Invalid argument\r\n\r\n[0]:\nUBSAN: shift-out-of-bounds in net/ipv4/tcp_dctcp.c:143:12\nshift exponent 100 is too large for 32-bit type \u0026apos;u32\u0026apos; (aka \u0026apos;unsigned int\u0026apos;)\nCPU: 0 PID: 8083 Comm: syz-executor345 Not tainted 6.9.0-05151-g1b294a1f3561 #2\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS\n1.13.0-1ubuntu1.1 04/01/2014\nCall Trace:\n \u0026lt;TASK\u0026gt;\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0x201/0x300 lib/dump_stack.c:114\n ubsan_epilogue lib/ubsan.c:231 [inline]\n __ubsan_handle_shift_out_of_bounds+0x346/0x3a0 lib/ubsan.c:468\n dctcp_update_alpha+0x540/0x570 net/ipv4/tcp_dctcp.c:143\n tcp_in_ack_event net/ipv4/tcp_input.c:3802 [inline]\n tcp_ack+0x17b1/0x3bc0 net/ipv4/tcp_input.c:3948\n tcp_rcv_state_process+0x57a/0x2290 net/ipv4/tcp_input.c:6711\n tcp_v4_do_rcv+0x764/0xc40 net/ipv4/tcp_ipv4.c:1937\n sk_backlog_rcv include/net/sock.h:1106 [inline]\n __release_sock+0x20f/0x350 net/core/sock.c:2983\n release_sock+0x61/0x1f0 net/core/sock.c:3549\n mptcp_subflow_shutdown+0x3d0/0x620 net/mptcp/protocol.c:2907\n mptcp_check_send_data_fin+0x225/0x410 net/mptcp/protocol.c:2976\n __mptcp_close+0x238/0xad0 net/mptcp/protocol.c:3072\n mptcp_close+0x2a/0x1a0 net/mptcp/protocol.c:3127\n inet_release+0x190/0x1f0 net/ipv4/af_inet.c:437\n __sock_release net/socket.c:659 [inline]\n sock_close+0xc0/0x240 net/socket.c:1421\n __fput+0x41b/0x890 fs/file_table.c:422\n task_work_run+0x23b/0x300 kernel/task_work.c:180\n exit_task_work include/linux/task_work.h:38 [inline]\n do_exit+0x9c8/0x2540 kernel/exit.c:878\n do_group_exit+0x201/0x2b0 kernel/exit.c:1027\n __do_sys_exit_group kernel/exit.c:1038 [inline]\n __se_sys_exit_group kernel/exit.c:1036 [inline]\n __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1036\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xe4/0x240 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x67/0x6f\nRIP: 0033:0x7f6c2b5005b6\nCode: Unable to access opcode bytes at 0x7f6c2b50058c.\nRSP: 002b:00007ffe883eb948 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7\nRAX: ffffffffffffffda RBX: 00007f6c2b5862f0 RCX: 00007f6c2b5005b6\nRDX: 0000000000000001 RSI: 000000000000003c RDI: 0000000000000001\nRBP: 0000000000000001 R08: 00000000000000e7 R09: ffffffffffffffc0\nR10: 0000000000000006 R11: 0000000000000246 R12: 00007f6c2b5862f0\nR13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001\n \u0026lt;/TASK\u0026gt;(CVE-2024-37356)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ndrm: vc4: Fix possible null pointer dereference\r\n\r\nIn vc4_hdmi_audio_init() of_get_address() may return\nNULL which is later dereferenced. Fix this bug by adding NULL check.\r\n\r\nFound by Linux Verification Center (linuxtesting.org) with SVACE.(CVE-2024-38546)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nnet: fec: remove .ndo_poll_controller to avoid deadlocks\r\n\r\nThere is a deadlock issue found in sungem driver, please refer to the\ncommit ac0a230f719b (\u0026quot;eth: sungem: remove .ndo_poll_controller to avoid\ndeadlocks\u0026quot;). The root cause of the issue is that netpoll is in atomic\ncontext and disable_irq() is called by .ndo_poll_controller interface\nof sungem driver, however, disable_irq() might sleep. After analyzing\nthe implementation of fec_poll_controller(), the fec driver should have\nthe same issue. Due to the fec driver uses NAPI for TX completions, the\n.ndo_poll_controller is unnecessary to be implemented in the fec driver,\nso fec_poll_controller() can be safely removed.(CVE-2024-38553)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nax25: Fix reference count leak issue of net_device\r\n\r\nThere is a reference count leak issue of the object \u0026quot;net_device\u0026quot; in\nax25_dev_device_down(). When the ax25 device is shutting down, the\nax25_dev_device_down() drops the reference count of net_device one\nor zero times depending on if we goto unlock_put or not, which will\ncause memory leak.\r\n\r\nIn order to solve the above issue, decrease the reference count of\nnet_device after dev-\u0026gt;ax25_ptr is set to null.(CVE-2024-38554)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nscsi: qedf: Ensure the copied buf is NUL terminated\r\n\r\nCurrently, we allocate a count-sized kernel buffer and copy count from\nuserspace to that buffer. Later, we use kstrtouint on this buffer but we\ndon\u0026apos;t ensure that the string is terminated inside the buffer, this can\nlead to OOB read when using kstrtouint. Fix this issue by using\nmemdup_user_nul instead of memdup_user.(CVE-2024-38559)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\necryptfs: Fix buffer size for tag 66 packet\r\n\r\nThe \u0026apos;TAG 66 Packet Format\u0026apos; description is missing the cipher code and\nchecksum fields that are packed into the message packet. As a result,\nthe buffer allocated for the packet is 3 bytes too small and\nwrite_tag_66_packet() will write up to 3 bytes past the end of the\nbuffer.\r\n\r\nFix this by increasing the size of the allocation so the whole packet\nwill always fit in the buffer.\r\n\r\nThis fixes the below kasan slab-out-of-bounds bug:\r\n\r\n BUG: KASAN: slab-out-of-bounds in ecryptfs_generate_key_packet_set+0x7d6/0xde0\n Write of size 1 at addr ffff88800afbb2a5 by task touch/181\r\n\r\n CPU: 0 PID: 181 Comm: touch Not tainted 6.6.13-gnu #1 4c9534092be820851bb687b82d1f92a426598dc6\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2/GNU Guix 04/01/2014\n Call Trace:\n \u0026lt;TASK\u0026gt;\n dump_stack_lvl+0x4c/0x70\n print_report+0xc5/0x610\n ? ecryptfs_generate_key_packet_set+0x7d6/0xde0\n ? kasan_complete_mode_report_info+0x44/0x210\n ? ecryptfs_generate_key_packet_set+0x7d6/0xde0\n kasan_report+0xc2/0x110\n ? ecryptfs_generate_key_packet_set+0x7d6/0xde0\n __asan_store1+0x62/0x80\n ecryptfs_generate_key_packet_set+0x7d6/0xde0\n ? __pfx_ecryptfs_generate_key_packet_set+0x10/0x10\n ? __alloc_pages+0x2e2/0x540\n ? __pfx_ovl_open+0x10/0x10 [overlay 30837f11141636a8e1793533a02e6e2e885dad1d]\n ? dentry_open+0x8f/0xd0\n ecryptfs_write_metadata+0x30a/0x550\n ? __pfx_ecryptfs_write_metadata+0x10/0x10\n ? ecryptfs_get_lower_file+0x6b/0x190\n ecryptfs_initialize_file+0x77/0x150\n ecryptfs_create+0x1c2/0x2f0\n path_openat+0x17cf/0x1ba0\n ? __pfx_path_openat+0x10/0x10\n do_filp_open+0x15e/0x290\n ? __pfx_do_filp_open+0x10/0x10\n ? __kasan_check_write+0x18/0x30\n ? _raw_spin_lock+0x86/0xf0\n ? __pfx__raw_spin_lock+0x10/0x10\n ? __kasan_check_write+0x18/0x30\n ? alloc_fd+0xf4/0x330\n do_sys_openat2+0x122/0x160\n ? __pfx_do_sys_openat2+0x10/0x10\n __x64_sys_openat+0xef/0x170\n ? __pfx___x64_sys_openat+0x10/0x10\n do_syscall_64+0x60/0xd0\n entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n RIP: 0033:0x7f00a703fd67\n Code: 25 00 00 41 00 3d 00 00 41 00 74 37 64 8b 04 25 18 00 00 00 85 c0 75 5b 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 \u0026lt;48\u0026gt; 3d 00 f0 ff ff 0f 87 85 00 00 00 48 83 c4 68 5d 41 5c c3 0f 1f\n RSP: 002b:00007ffc088e30b0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101\n RAX: ffffffffffffffda RBX: 00007ffc088e3368 RCX: 00007f00a703fd67\n RDX: 0000000000000941 RSI: 00007ffc088e48d7 RDI: 00000000ffffff9c\n RBP: 00007ffc088e48d7 R08: 0000000000000001 R09: 0000000000000000\n R10: 00000000000001b6 R11: 0000000000000246 R12: 0000000000000941\n R13: 0000000000000000 R14: 00007ffc088e48d7 R15: 00007f00a7180040\n \u0026lt;/TASK\u0026gt;\r\n\r\n Allocated by task 181:\n kasan_save_stack+0x2f/0x60\n kasan_set_track+0x29/0x40\n kasan_save_alloc_info+0x25/0x40\n __kasan_kmalloc+0xc5/0xd0\n __kmalloc+0x66/0x160\n ecryptfs_generate_key_packet_set+0x6d2/0xde0\n ecryptfs_write_metadata+0x30a/0x550\n ecryptfs_initialize_file+0x77/0x150\n ecryptfs_create+0x1c2/0x2f0\n path_openat+0x17cf/0x1ba0\n do_filp_open+0x15e/0x290\n do_sys_openat2+0x122/0x160\n __x64_sys_openat+0xef/0x170\n do_syscall_64+0x60/0xd0\n entry_SYSCALL_64_after_hwframe+0x6e/0xd8(CVE-2024-38578)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ncrypto: bcm - Fix pointer arithmetic\r\n\r\nIn spu2_dump_omd() value of ptr is increased by ciph_key_len\ninstead of hash_iv_len which could lead to going beyond the\nbuffer boundaries.\nFix this bug by changing ciph_key_len to hash_iv_len.\r\n\r\nFound by Linux Verification Center (linuxtesting.org) with SVACE.(CVE-2024-38579)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nnilfs2: fix potential hang in nilfs_detach_log_writer()\r\n\r\nSyzbot has reported a potential hang in nilfs_detach_log_writer() called\nduring nilfs2 unmount.\r\n\r\nAnalysis revealed that this is because nilfs_segctor_sync(), which\nsynchronizes with the log writer thread, can be called after\nnilfs_segctor_destroy() terminates that thread, as shown in the call trace\nbelow:\r\n\r\nnilfs_detach_log_writer\n nilfs_segctor_destroy\n nilfs_segctor_kill_thread --\u0026gt; Shut down log writer thread\n flush_work\n nilfs_iput_work_func\n nilfs_dispose_list\n iput\n nilfs_evict_inode\n nilfs_transaction_commit\n nilfs_construct_segment (if inode needs sync)\n nilfs_segctor_sync --\u0026gt; Attempt to synchronize with\n log writer thread\n *** DEADLOCK ***\r\n\r\nFix this issue by changing nilfs_segctor_sync() so that the log writer\nthread returns normally without synchronizing after it terminates, and by\nforcing tasks that are already waiting to complete once after the thread\nterminates.\r\n\r\nThe skipped inode metadata flushout will then be processed together in the\nsubsequent cleanup work in nilfs_segctor_destroy().(CVE-2024-38582)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nnilfs2: fix use-after-free of timer for log writer thread\r\n\r\nPatch series \u0026quot;nilfs2: fix log writer related issues\u0026quot;.\r\n\r\nThis bug fix series covers three nilfs2 log writer-related issues,\nincluding a timer use-after-free issue and potential deadlock issue on\nunmount, and a potential freeze issue in event synchronization found\nduring their analysis. Details are described in each commit log.\r\n\r\n\nThis patch (of 3):\r\n\r\nA use-after-free issue has been reported regarding the timer sc_timer on\nthe nilfs_sc_info structure.\r\n\r\nThe problem is that even though it is used to wake up a sleeping log\nwriter thread, sc_timer is not shut down until the nilfs_sc_info structure\nis about to be freed, and is used regardless of the thread\u0026apos;s lifetime.\r\n\r\nFix this issue by limiting the use of sc_timer only while the log writer\nthread is alive.(CVE-2024-38583)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nALSA: timer: Set lower bound of start tick time\r\n\r\nCurrently ALSA timer doesn\u0026apos;t have the lower limit of the start tick\ntime, and it allows a very small size, e.g. 1 tick with 1ns resolution\nfor hrtimer. Such a situation may lead to an unexpected RCU stall,\nwhere the callback repeatedly queuing the expire update, as reported\nby fuzzer.\r\n\r\nThis patch introduces a sanity check of the timer start tick time, so\nthat the system returns an error when a too small start size is set.\nAs of this patch, the lower limit is hard-coded to 100us, which is\nsmall enough but can still work somehow.(CVE-2024-38618)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nserial: max3100: Update uart_driver_registered on driver removal\r\n\r\nThe removal of the last MAX3100 device triggers the removal of\nthe driver. However, code doesn\u0026apos;t update the respective global\nvariable and after insmod \u2014 rmmod \u2014 insmod cycle the kernel\noopses:\r\n\r\n max3100 spi-PRP0001:01: max3100_probe: adding port 0\n BUG: kernel NULL pointer dereference, address: 0000000000000408\n ...\n RIP: 0010:serial_core_register_port+0xa0/0x840\n ...\n max3100_probe+0x1b6/0x280 [max3100]\n spi_probe+0x8d/0xb0\r\n\r\nUpdate the actual state so next time UART driver will be registered\nagain.\r\n\r\nHugo also noticed, that the error path in the probe also affected\nby having the variable set, and not cleared. Instead of clearing it\nmove the assignment after the successfull uart_register_driver() call.(CVE-2024-38633)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nserial: max3100: Lock port-\u0026gt;lock when calling uart_handle_cts_change()\r\n\r\nuart_handle_cts_change() has to be called with port lock taken,\nSince we run it in a separate work, the lock may not be taken at\nthe time of running. Make sure that it\u0026apos;s taken by explicitly doing\nthat. Without it we got a splat:\r\n\r\n WARNING: CPU: 0 PID: 10 at drivers/tty/serial/serial_core.c:3491 uart_handle_cts_change+0xa6/0xb0\n ...\n Workqueue: max3100-0 max3100_work [max3100]\n RIP: 0010:uart_handle_cts_change+0xa6/0xb0\n ...\n max3100_handlerx+0xc5/0x110 [max3100]\n max3100_work+0x12a/0x340 [max3100](CVE-2024-38634)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ngreybus: lights: check return of get_channel_from_mode\r\n\r\nIf channel for the given node is not found we return null from\nget_channel_from_mode. Make sure we validate the return pointer\nbefore using it in two of the missing places.\r\n\r\nThis was originally reported in [0]:\nFound by Linux Verification Center (linuxtesting.org) with SVACE.\r\n\r\n[0] https://lore.kernel.org/all/20240301190425.120605-1-m.lobanov@rosalinux.ru(CVE-2024-38637)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nenic: Validate length of nl attributes in enic_set_vf_port\r\n\r\nenic_set_vf_port assumes that the nl attribute IFLA_PORT_PROFILE\nis of length PORT_PROFILE_MAX and that the nl attributes\nIFLA_PORT_INSTANCE_UUID, IFLA_PORT_HOST_UUID are of length PORT_UUID_MAX.\nThese attributes are validated (in the function do_setlink in rtnetlink.c)\nusing the nla_policy ifla_port_policy. The policy defines IFLA_PORT_PROFILE\nas NLA_STRING, IFLA_PORT_INSTANCE_UUID as NLA_BINARY and\nIFLA_PORT_HOST_UUID as NLA_STRING. That means that the length validation\nusing the policy is for the max size of the attributes and not on exact\nsize so the length of these attributes might be less than the sizes that\nenic_set_vf_port expects. This might cause an out of bands\nread access in the memcpys of the data of these\nattributes in enic_set_vf_port.(CVE-2024-38659)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ndma-buf/sw-sync: don\u0026apos;t enable IRQ from sync_print_obj()\r\n\r\nSince commit a6aa8fca4d79 (\u0026quot;dma-buf/sw-sync: Reduce irqsave/irqrestore from\nknown context\u0026quot;) by error replaced spin_unlock_irqrestore() with\nspin_unlock_irq() for both sync_debugfs_show() and sync_print_obj() despite\nsync_print_obj() is called from sync_debugfs_show(), lockdep complains\ninconsistent lock state warning.\r\n\r\nUse plain spin_{lock,unlock}() for sync_print_obj(), for\nsync_debugfs_show() is already using spin_{lock,unlock}_irq().(CVE-2024-38780)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nnet/9p: fix uninit-value in p9_client_rpc()\r\n\r\nSyzbot with the help of KMSAN reported the following error:\r\n\r\nBUG: KMSAN: uninit-value in trace_9p_client_res include/trace/events/9p.h:146 [inline]\nBUG: KMSAN: uninit-value in p9_client_rpc+0x1314/0x1340 net/9p/client.c:754\n trace_9p_client_res include/trace/events/9p.h:146 [inline]\n p9_client_rpc+0x1314/0x1340 net/9p/client.c:754\n p9_client_create+0x1551/0x1ff0 net/9p/client.c:1031\n v9fs_session_init+0x1b9/0x28e0 fs/9p/v9fs.c:410\n v9fs_mount+0xe2/0x12b0 fs/9p/vfs_super.c:122\n legacy_get_tree+0x114/0x290 fs/fs_context.c:662\n vfs_get_tree+0xa7/0x570 fs/super.c:1797\n do_new_mount+0x71f/0x15e0 fs/namespace.c:3352\n path_mount+0x742/0x1f20 fs/namespace.c:3679\n do_mount fs/namespace.c:3692 [inline]\n __do_sys_mount fs/namespace.c:3898 [inline]\n __se_sys_mount+0x725/0x810 fs/namespace.c:3875\n __x64_sys_mount+0xe4/0x150 fs/namespace.c:3875\n do_syscall_64+0xd5/0x1f0\n entry_SYSCALL_64_after_hwframe+0x6d/0x75\r\n\r\nUninit was created at:\n __alloc_pages+0x9d6/0xe70 mm/page_alloc.c:4598\n __alloc_pages_node include/linux/gfp.h:238 [inline]\n alloc_pages_node include/linux/gfp.h:261 [inline]\n alloc_slab_page mm/slub.c:2175 [inline]\n allocate_slab mm/slub.c:2338 [inline]\n new_slab+0x2de/0x1400 mm/slub.c:2391\n ___slab_alloc+0x1184/0x33d0 mm/slub.c:3525\n __slab_alloc mm/slub.c:3610 [inline]\n __slab_alloc_node mm/slub.c:3663 [inline]\n slab_alloc_node mm/slub.c:3835 [inline]\n kmem_cache_alloc+0x6d3/0xbe0 mm/slub.c:3852\n p9_tag_alloc net/9p/client.c:278 [inline]\n p9_client_prepare_req+0x20a/0x1770 net/9p/client.c:641\n p9_client_rpc+0x27e/0x1340 net/9p/client.c:688\n p9_client_create+0x1551/0x1ff0 net/9p/client.c:1031\n v9fs_session_init+0x1b9/0x28e0 fs/9p/v9fs.c:410\n v9fs_mount+0xe2/0x12b0 fs/9p/vfs_super.c:122\n legacy_get_tree+0x114/0x290 fs/fs_context.c:662\n vfs_get_tree+0xa7/0x570 fs/super.c:1797\n do_new_mount+0x71f/0x15e0 fs/namespace.c:3352\n path_mount+0x742/0x1f20 fs/namespace.c:3679\n do_mount fs/namespace.c:3692 [inline]\n __do_sys_mount fs/namespace.c:3898 [inline]\n __se_sys_mount+0x725/0x810 fs/namespace.c:3875\n __x64_sys_mount+0xe4/0x150 fs/namespace.c:3875\n do_syscall_64+0xd5/0x1f0\n entry_SYSCALL_64_after_hwframe+0x6d/0x75\r\n\r\nIf p9_check_errors() fails early in p9_client_rpc(), req-\u0026gt;rc.tag\nwill not be properly initialized. However, trace_9p_client_res()\nends up trying to print it out anyway before p9_client_rpc()\nfinishes.\r\n\r\nFix this issue by assigning default values to p9_fcall fields\nsuch as \u0026apos;tag\u0026apos; and (just in case KMSAN unearths something new) \u0026apos;id\u0026apos;\nduring the tag allocation stage.(CVE-2024-39301)",
"id": "OESA-2024-1835",
"modified": "2026-08-06T11:07:18Z",
"published": "2024-07-12T11:07:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1835"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47270"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47515"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47583"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47611"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47619"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48717"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48722"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48736"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48738"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48743"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48744"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48758"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48772"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52730"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-23848"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-31076"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35893"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35915"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36014"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36949"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-37356"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38546"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38553"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38554"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38559"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38578"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38579"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38582"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38583"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38618"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38633"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38634"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38637"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38659"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38780"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-39301"
}
],
"schema_version": "1.7.2",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "kernel security update",
"upstream": [
"CVE-2021-47270",
"CVE-2021-47515",
"CVE-2021-47583",
"CVE-2021-47611",
"CVE-2021-47619",
"CVE-2022-48717",
"CVE-2022-48722",
"CVE-2022-48736",
"CVE-2022-48738",
"CVE-2022-48743",
"CVE-2022-48744",
"CVE-2022-48758",
"CVE-2022-48772",
"CVE-2023-52730",
"CVE-2024-23848",
"CVE-2024-31076",
"CVE-2024-35893",
"CVE-2024-35915",
"CVE-2024-36014",
"CVE-2024-36949",
"CVE-2024-37356",
"CVE-2024-38546",
"CVE-2024-38553",
"CVE-2024-38554",
"CVE-2024-38559",
"CVE-2024-38578",
"CVE-2024-38579",
"CVE-2024-38582",
"CVE-2024-38583",
"CVE-2024-38618",
"CVE-2024-38633",
"CVE-2024-38634",
"CVE-2024-38637",
"CVE-2024-38659",
"CVE-2024-38780",
"CVE-2024-39301"
]
}
OESA-2024-1836 (CVE-2022-48772)
Vulnerability from osv_openeuler – Published: 2024-07-12 11:07 – Updated: 2026-08-06 11:07 – Source websiteThe Linux Kernel, the operating system core itself.
Security Fix(es):
In the Linux kernel, the following vulnerability has been resolved:
media: lgdt3306a: Add a check against null-pointer-def
The driver should check whether the client provides the platform_data.
The following log reveals it:
[ 29.610324] BUG: KASAN: null-ptr-deref in kmemdup+0x30/0x40 [ 29.610730] Read of size 40 at addr 0000000000000000 by task bash/414 [ 29.612820] Call Trace: [ 29.613030] <TASK> [ 29.613201] dump_stack_lvl+0x56/0x6f [ 29.613496] ? kmemdup+0x30/0x40 [ 29.613754] print_report.cold+0x494/0x6b7 [ 29.614082] ? kmemdup+0x30/0x40 [ 29.614340] kasan_report+0x8a/0x190 [ 29.614628] ? kmemdup+0x30/0x40 [ 29.614888] kasan_check_range+0x14d/0x1d0 [ 29.615213] memcpy+0x20/0x60 [ 29.615454] kmemdup+0x30/0x40 [ 29.615700] lgdt3306a_probe+0x52/0x310 [ 29.616339] i2c_device_probe+0x951/0xa90(CVE-2022-48772)
In the Linux kernel, the following vulnerability has been resolved:
genirq/cpuhotplug, x86/vector: Prevent vector leak during CPU offline
The absence of IRQD_MOVE_PCNTXT prevents immediate effectiveness of interrupt affinity reconfiguration via procfs. Instead, the change is deferred until the next instance of the interrupt being triggered on the original CPU.
When the interrupt next triggers on the original CPU, the new affinity is enforced within __irq_move_irq(). A vector is allocated from the new CPU, but the old vector on the original CPU remains and is not immediately reclaimed. Instead, apicd->move_in_progress is flagged, and the reclaiming process is delayed until the next trigger of the interrupt on the new CPU.
Upon the subsequent triggering of the interrupt on the new CPU, irq_complete_move() adds a task to the old CPU's vector_cleanup list if it remains online. Subsequently, the timer on the old CPU iterates over its vector_cleanup list, reclaiming old vectors.
However, a rare scenario arises if the old CPU is outgoing before the interrupt triggers again on the new CPU.
In that case irq_force_complete_move() is not invoked on the outgoing CPU to reclaim the old apicd->prev_vector because the interrupt isn't currently affine to the outgoing CPU, and irq_needs_fixup() returns false. Even though __vector_schedule_cleanup() is later called on the new CPU, it doesn't reclaim apicd->prev_vector; instead, it simply resets both apicd->move_in_progress and apicd->prev_vector to 0.
As a result, the vector remains unreclaimed in vector_matrix, leading to a CPU vector leak.
To address this issue, move the invocation of irq_force_complete_move() before the irq_needs_fixup() call to reclaim apicd->prev_vector, if the interrupt is currently or used to be affine to the outgoing CPU.
Additionally, reclaim the vector in __vector_schedule_cleanup() as well, following a warning message, although theoretically it should never see apicd->move_in_progress with apicd->prev_cpu pointing to an offline CPU.(CVE-2024-31076)
In the Linux kernel, the following vulnerability has been resolved:
tls: fix missing memory barrier in tls_init
In tls_init(), a write memory barrier is missing, and store-store reordering may cause NULL dereference in tls_{setsockopt,getsockopt}.
CPU0 CPU1 ----- ----- // In tls_init() // In tls_ctx_create() ctx = kzalloc() ctx->sk_proto = READ_ONCE(sk->sk_prot) -(1)
// In update_sk_prot() WRITE_ONCE(sk->sk_prot, tls_prots) -(2)
// In sock_common_setsockopt()
READ_ONCE(sk->sk_prot)->setsockopt()
// In tls_{setsockopt,getsockopt}()
ctx->sk_proto->setsockopt() -(3)
In the above scenario, when (1) and (2) are reordered, (3) can observe the NULL value of ctx->sk_proto, causing NULL dereference.
To fix it, we rely on rcu_assign_pointer() which implies the release barrier semantic. By moving rcu_assign_pointer() after ctx->sk_proto is initialized, we can ensure that ctx->sk_proto are visible when changing sk->sk_prot.(CVE-2024-36489)
In the Linux kernel, the following vulnerability has been resolved:
amd/amdkfd: sync all devices to wait all processes being evicted
If there are more than one device doing reset in parallel, the first device will call kfd_suspend_all_processes() to evict all processes on all devices, this call takes time to finish. other device will start reset and recover without waiting. if the process has not been evicted before doing recover, it will be restored, then caused page fault.(CVE-2024-36949)
In the Linux kernel, the following vulnerability has been resolved:
scsi: lpfc: Move NPIV's transport unregistration to after resource clean up
There are cases after NPIV deletion where the fabric switch still believes the NPIV is logged into the fabric. This occurs when a vport is unregistered before the Remove All DA_ID CT and LOGO ELS are sent to the fabric.
Currently fc_remove_host(), which calls dev_loss_tmo for all D_IDs including the fabric D_ID, removes the last ndlp reference and frees the ndlp rport object. This sometimes causes the race condition where the final DA_ID and LOGO are skipped from being sent to the fabric switch.
Fix by moving the fc_remove_host() and scsi_remove_host() calls after DA_ID and LOGO are sent.(CVE-2024-36952)
In the Linux kernel, the following vulnerability has been resolved:
net: ks8851: Queue RX packets in IRQ handler instead of disabling BHs
Currently the driver uses local_bh_disable()/local_bh_enable() in its IRQ handler to avoid triggering net_rx_action() softirq on exit from netif_rx(). The net_rx_action() could trigger this driver .start_xmit callback, which is protected by the same lock as the IRQ handler, so calling the .start_xmit from netif_rx() from the IRQ handler critical section protected by the lock could lead to an attempt to claim the already claimed lock, and a hang.
The local_bh_disable()/local_bh_enable() approach works only in case the IRQ handler is protected by a spinlock, but does not work if the IRQ handler is protected by mutex, i.e. this works for KS8851 with Parallel bus interface, but not for KS8851 with SPI bus interface.
Remove the BH manipulation and instead of calling netif_rx() inside the IRQ handler code protected by the lock, queue all the received SKBs in the IRQ handler into a queue first, and once the IRQ handler exits the critical section protected by the lock, dequeue all the queued SKBs and push them all into netif_rx(). At this point, it is safe to trigger the net_rx_action() softirq, since the netif_rx() call is outside of the lock that protects the IRQ handler.(CVE-2024-36962)
In the Linux kernel, the following vulnerability has been resolved:
remoteproc: mediatek: Make sure IPI buffer fits in L2TCM
The IPI buffer location is read from the firmware that we load to the System Companion Processor, and it's not granted that both the SRAM (L2TCM) size that is defined in the devicetree node is large enough for that, and while this is especially true for multi-core SCP, it's still useful to check on single-core variants as well.
Failing to perform this check may make this driver perform R/W operations out of the L2TCM boundary, resulting (at best) in a kernel panic.
To fix that, check that the IPI buffer fits, otherwise return a failure and refuse to boot the relevant SCP core (or the SCP at all, if this is single core).(CVE-2024-36965)
In the Linux kernel, the following vulnerability has been resolved:
virtio: delete vq in vp_find_vqs_msix() when request_irq() fails
When request_irq() fails, error path calls vp_del_vqs(). There, as vq is present in the list, free_irq() is called for the same vector. That causes following splat:
[ 0.414355] Trying to free already-free IRQ 27 [ 0.414403] WARNING: CPU: 1 PID: 1 at kernel/irq/manage.c:1899 free_irq+0x1a1/0x2d0 [ 0.414510] Modules linked in: [ 0.414540] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 6.9.0-rc4+ #27 [ 0.414540] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-1.fc39 04/01/2014 [ 0.414540] RIP: 0010:free_irq+0x1a1/0x2d0 [ 0.414540] Code: 1e 00 48 83 c4 08 48 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 90 8b 74 24 04 48 c7 c7 98 80 6c b1 e8 00 c9 f7 ff 90 <0f> 0b 90 90 48 89 ee 4c 89 ef e8 e0 20 b8 00 49 8b 47 40 48 8b 40 [ 0.414540] RSP: 0000:ffffb71480013ae0 EFLAGS: 00010086 [ 0.414540] RAX: 0000000000000000 RBX: ffffa099c2722000 RCX: 0000000000000000 [ 0.414540] RDX: 0000000000000000 RSI: ffffb71480013998 RDI: 0000000000000001 [ 0.414540] RBP: 0000000000000246 R08: 00000000ffffdfff R09: 0000000000000001 [ 0.414540] R10: 00000000ffffdfff R11: ffffffffb18729c0 R12: ffffa099c1c91760 [ 0.414540] R13: ffffa099c1c916a4 R14: ffffa099c1d2f200 R15: ffffa099c1c91600 [ 0.414540] FS: 0000000000000000(0000) GS:ffffa099fec40000(0000) knlGS:0000000000000000 [ 0.414540] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 0.414540] CR2: 0000000000000000 CR3: 0000000008e3e001 CR4: 0000000000370ef0 [ 0.414540] Call Trace: [ 0.414540] <TASK> [ 0.414540] ? __warn+0x80/0x120 [ 0.414540] ? free_irq+0x1a1/0x2d0 [ 0.414540] ? report_bug+0x164/0x190 [ 0.414540] ? handle_bug+0x3b/0x70 [ 0.414540] ? exc_invalid_op+0x17/0x70 [ 0.414540] ? asm_exc_invalid_op+0x1a/0x20 [ 0.414540] ? free_irq+0x1a1/0x2d0 [ 0.414540] vp_del_vqs+0xc1/0x220 [ 0.414540] vp_find_vqs_msix+0x305/0x470 [ 0.414540] vp_find_vqs+0x3e/0x1a0 [ 0.414540] vp_modern_find_vqs+0x1b/0x70 [ 0.414540] init_vqs+0x387/0x600 [ 0.414540] virtnet_probe+0x50a/0xc80 [ 0.414540] virtio_dev_probe+0x1e0/0x2b0 [ 0.414540] really_probe+0xc0/0x2c0 [ 0.414540] ? __pfxdriverattach+0x10/0x10 [ 0.414540] driver_probe_device+0x73/0x120 [ 0.414540] driver_probe_device+0x1f/0xe0 [ 0.414540] __driver_attach+0x88/0x180 [ 0.414540] bus_for_each_dev+0x85/0xd0 [ 0.414540] bus_add_driver+0xec/0x1f0 [ 0.414540] driver_register+0x59/0x100 [ 0.414540] ? __pfx_virtio_net_driver_init+0x10/0x10 [ 0.414540] virtio_net_driver_init+0x90/0xb0 [ 0.414540] do_one_initcall+0x58/0x230 [ 0.414540] kernel_init_freeable+0x1a3/0x2d0 [ 0.414540] ? __pfx_kernel_init+0x10/0x10 [ 0.414540] kernel_init+0x1a/0x1c0 [ 0.414540] ret_from_fork+0x31/0x50 [ 0.414540] ? __pfx_kernel_init+0x10/0x10 [ 0.414540] ret_from_fork_asm+0x1a/0x30 [ 0.414540] </TASK>
Fix this by calling deleting the current vq when request_irq() fails.(CVE-2024-37353)
In the Linux kernel, the following vulnerability has been resolved:
btrfs: fix crash on racing fsync and size-extending write into prealloc
We have been seeing crashes on duplicate keys in btrfs_set_item_key_safe():
BTRFS critical (device vdb): slot 4 key (450 108 8192) new key (450 108 8192) ------------[ cut here ]------------ kernel BUG at fs/btrfs/ctree.c:2620! invalid opcode: 0000 [#1] PREEMPT SMP PTI CPU: 0 PID: 3139 Comm: xfs_io Kdump: loaded Not tainted 6.9.0 #6 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-2.fc40 04/01/2014 RIP: 0010:btrfs_set_item_key_safe+0x11f/0x290 [btrfs]
With the following stack trace:
#0 btrfs_set_item_key_safe (fs/btrfs/ctree.c:2620:4) #1 btrfs_drop_extents (fs/btrfs/file.c:411:4) #2 log_one_extent (fs/btrfs/tree-log.c:4732:9) #3 btrfs_log_changed_extents (fs/btrfs/tree-log.c:4955:9) #4 btrfs_log_inode (fs/btrfs/tree-log.c:6626:9) #5 btrfs_log_inode_parent (fs/btrfs/tree-log.c:7070:8) #6 btrfs_log_dentry_safe (fs/btrfs/tree-log.c:7171:8) #7 btrfs_sync_file (fs/btrfs/file.c:1933:8) #8 vfs_fsync_range (fs/sync.c:188:9) #9 vfs_fsync (fs/sync.c:202:9) #10 do_fsync (fs/sync.c:212:9) #11 __do_sys_fdatasync (fs/sync.c:225:9) #12 __se_sys_fdatasync (fs/sync.c:223:1) #13 __x64_sys_fdatasync (fs/sync.c:223:1) #14 do_syscall_x64 (arch/x86/entry/common.c:52:14) #15 do_syscall_64 (arch/x86/entry/common.c:83:7) #16 entry_SYSCALL_64+0xaf/0x14c (arch/x86/entry/entry_64.S:121)
So we're logging a changed extent from fsync, which is splitting an extent in the log tree. But this split part already exists in the tree, triggering the BUG().
This is the state of the log tree at the time of the crash, dumped with drgn (https://github.com/osandov/drgn/blob/main/contrib/btrfs_tree.py) to get more details than btrfs_print_leaf() gives us:
>>> print_extent_buffer(prog.crashed_thread().stack_trace()[0]["eb"]) leaf 33439744 level 0 items 72 generation 9 owner 18446744073709551610 leaf 33439744 flags 0x100000000000000 fs uuid e5bd3946-400c-4223-8923-190ef1f18677 chunk uuid d58cb17e-6d02-494a-829a-18b7d8a399da item 0 key (450 INODE_ITEM 0) itemoff 16123 itemsize 160 generation 7 transid 9 size 8192 nbytes 8473563889606862198 block group 0 mode 100600 links 1 uid 0 gid 0 rdev 0 sequence 204 flags 0x10(PREALLOC) atime 1716417703.220000000 (2024-05-22 15:41:43) ctime 1716417704.983333333 (2024-05-22 15:41:44) mtime 1716417704.983333333 (2024-05-22 15:41:44) otime 17592186044416.000000000 (559444-03-08 01:40:16) item 1 key (450 INODE_REF 256) itemoff 16110 itemsize 13 index 195 namelen 3 name: 193 item 2 key (450 XATTR_ITEM 1640047104) itemoff 16073 itemsize 37 location key (0 UNKNOWN.0 0) type XATTR transid 7 data_len 1 name_len 6 name: user.a data a item 3 key (450 EXTENT_DATA 0) itemoff 16020 itemsize 53 generation 9 type 1 (regular) extent data disk byte 303144960 nr 12288 extent data offset 0 nr 4096 ram 12288 extent compression 0 (none) item 4 key (450 EXTENT_DATA 4096) itemoff 15967 itemsize 53 generation 9 type 2 (prealloc) prealloc data disk byte 303144960 nr 12288 prealloc data offset 4096 nr 8192 item 5 key (450 EXTENT_DATA 8192) itemoff 15914 itemsize 53 generation 9 type 2 (prealloc) prealloc data disk byte 303144960 nr 12288 prealloc data offset 8192 nr 4096 ...
So the real problem happened earlier: notice that items 4 (4k-12k) and 5 (8k-12k) overlap. Both are prealloc extents. Item 4 straddles i_size and item 5 starts at i_size.
Here is the state of ---truncated---(CVE-2024-37354)
In the Linux kernel, the following vulnerability has been resolved:
tcp: Fix shift-out-of-bounds in dctcp_update_alpha().
In dctcp_update_alpha(), we use a module parameter dctcp_shift_g as follows:
alpha -= min_not_zero(alpha, alpha >> dctcp_shift_g); ... delivered_ce <<= (10 - dctcp_shift_g);
It seems syzkaller started fuzzing module parameters and triggered shift-out-of-bounds [0] by setting 100 to dctcp_shift_g:
memcpy((void)0x20000080, "/sys/module/tcp_dctcp/parameters/dctcp_shift_g\000", 47); res = syscall(__NR_openat, /fd=/0xffffffffffffff9cul, /file=/0x20000080ul, /flags=/2ul, /mode=/0ul); memcpy((void)0x20000000, "100\000", 4); syscall(__NR_write, /fd=/r[0], /val=/0x20000000ul, /len=/4ul);
Let's limit the max value of dctcp_shift_g by param_set_uint_minmax().
With this patch:
# echo 10 > /sys/module/tcp_dctcp/parameters/dctcp_shift_g # cat /sys/module/tcp_dctcp/parameters/dctcp_shift_g 10 # echo 11 > /sys/module/tcp_dctcp/parameters/dctcp_shift_g -bash: echo: write error: Invalid argument
[0]: UBSAN: shift-out-of-bounds in net/ipv4/tcp_dctcp.c:143:12 shift exponent 100 is too large for 32-bit type 'u32' (aka 'unsigned int') CPU: 0 PID: 8083 Comm: syz-executor345 Not tainted 6.9.0-05151-g1b294a1f3561 #2 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x201/0x300 lib/dump_stack.c:114 ubsan_epilogue lib/ubsan.c:231 [inline] __ubsan_handle_shift_out_of_bounds+0x346/0x3a0 lib/ubsan.c:468 dctcp_update_alpha+0x540/0x570 net/ipv4/tcp_dctcp.c:143 tcp_in_ack_event net/ipv4/tcp_input.c:3802 [inline] tcp_ack+0x17b1/0x3bc0 net/ipv4/tcp_input.c:3948 tcp_rcv_state_process+0x57a/0x2290 net/ipv4/tcp_input.c:6711 tcp_v4_do_rcv+0x764/0xc40 net/ipv4/tcp_ipv4.c:1937 sk_backlog_rcv include/net/sock.h:1106 [inline] __release_sock+0x20f/0x350 net/core/sock.c:2983 release_sock+0x61/0x1f0 net/core/sock.c:3549 mptcp_subflow_shutdown+0x3d0/0x620 net/mptcp/protocol.c:2907 mptcp_check_send_data_fin+0x225/0x410 net/mptcp/protocol.c:2976 __mptcp_close+0x238/0xad0 net/mptcp/protocol.c:3072 mptcp_close+0x2a/0x1a0 net/mptcp/protocol.c:3127 inet_release+0x190/0x1f0 net/ipv4/af_inet.c:437 __sock_release net/socket.c:659 [inline] sock_close+0xc0/0x240 net/socket.c:1421 __fput+0x41b/0x890 fs/file_table.c:422 task_work_run+0x23b/0x300 kernel/task_work.c:180 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x9c8/0x2540 kernel/exit.c:878 do_group_exit+0x201/0x2b0 kernel/exit.c:1027 __do_sys_exit_group kernel/exit.c:1038 [inline] __se_sys_exit_group kernel/exit.c:1036 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1036 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xe4/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x67/0x6f RIP: 0033:0x7f6c2b5005b6 Code: Unable to access opcode bytes at 0x7f6c2b50058c. RSP: 002b:00007ffe883eb948 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f6c2b5862f0 RCX: 00007f6c2b5005b6 RDX: 0000000000000001 RSI: 000000000000003c RDI: 0000000000000001 RBP: 0000000000000001 R08: 00000000000000e7 R09: ffffffffffffffc0 R10: 0000000000000006 R11: 0000000000000246 R12: 00007f6c2b5862f0 R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 </TASK>(CVE-2024-37356)
In the Linux kernel, the following vulnerability has been resolved:
ASoC: mediatek: Assign dummy when codec not specified for a DAI link
MediaTek sound card drivers are checking whether a DAI link is present and used on a board to assign the correct parameters and this is done by checking the codec DAI names at probe time.
If no real codec is present, assign the dummy codec to the DAI link to avoid NULL pointer during string comparison.(CVE-2024-38551)
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Fix potential index out of bounds in color transformation function
Fixes index out of bounds issue in the color transformation function. The issue could occur when the index 'i' exceeds the number of transfer function points (TRANSFER_FUNC_POINTS).
The fix adds a check to ensure 'i' is within bounds before accessing the transfer function points. If 'i' is out of bounds, an error message is logged and the function returns false to indicate an error.
Reported by smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:405 cm_helper_translate_curve_to_hw_format() error: buffer overflow 'output_tf->tf_pts.red' 1025 <= s32max drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:406 cm_helper_translate_curve_to_hw_format() error: buffer overflow 'output_tf->tf_pts.green' 1025 <= s32max drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:407 cm_helper_translate_curve_to_hw_format() error: buffer overflow 'output_tf->tf_pts.blue' 1025 <= s32max(CVE-2024-38552)
In the Linux kernel, the following vulnerability has been resolved:
ax25: Fix reference count leak issue of net_device
There is a reference count leak issue of the object "net_device" in ax25_dev_device_down(). When the ax25 device is shutting down, the ax25_dev_device_down() drops the reference count of net_device one or zero times depending on if we goto unlock_put or not, which will cause memory leak.
In order to solve the above issue, decrease the reference count of net_device after dev->ax25_ptr is set to null.(CVE-2024-38554)
In the Linux kernel, the following vulnerability has been resolved:
net/mlx5: Discard command completions in internal error
Fix use after free when FW completion arrives while device is in internal error state. Avoid calling completion handler in this case, since the device will flush the command interface and trigger all completions manually.
Kernel log: ------------[ cut here ]------------ refcount_t: underflow; use-after-free. ... RIP: 0010:refcount_warn_saturate+0xd8/0xe0 ... Call Trace: <IRQ> ? __warn+0x79/0x120 ? refcount_warn_saturate+0xd8/0xe0 ? report_bug+0x17c/0x190 ? handle_bug+0x3c/0x60 ? exc_invalid_op+0x14/0x70 ? asm_exc_invalid_op+0x16/0x20 ? refcount_warn_saturate+0xd8/0xe0 cmd_ent_put+0x13b/0x160 [mlx5_core] mlx5_cmd_comp_handler+0x5f9/0x670 [mlx5_core] cmd_comp_notifier+0x1f/0x30 [mlx5_core] notifier_call_chain+0x35/0xb0 atomic_notifier_call_chain+0x16/0x20 mlx5_eq_async_int+0xf6/0x290 [mlx5_core] notifier_call_chain+0x35/0xb0 atomic_notifier_call_chain+0x16/0x20 irq_int_handler+0x19/0x30 [mlx5_core] __handle_irq_event_percpu+0x4b/0x160 handle_irq_event+0x2e/0x80 handle_edge_irq+0x98/0x230 __common_interrupt+0x3b/0xa0 common_interrupt+0x7b/0xa0 </IRQ> <TASK> asm_common_interrupt+0x22/0x40(CVE-2024-38555)
In the Linux kernel, the following vulnerability has been resolved:
wifi: nl80211: Avoid address calculations via out of bounds array indexing
Before request->channels[] can be used, request->n_channels must be set. Additionally, address calculations for memory after the "channels" array need to be calculated from the allocation base ("request") rather than via the first "out of bounds" index of "channels", otherwise run-time bounds checking will throw a warning.(CVE-2024-38562)
In the Linux kernel, the following vulnerability has been resolved:
bpf: Add BPF_PROG_TYPE_CGROUP_SKB attach type enforcement in BPF_LINK_CREATE
bpf_prog_attach uses attach_type_to_prog_type to enforce proper attach type for BPF_PROG_TYPE_CGROUP_SKB. link_create uses bpf_prog_get and relies on bpf_prog_attach_check_attach_type to properly verify prog_type <> attach_type association.
Add missing attach_type enforcement for the link_create case. Otherwise, it's currently possible to attach cgroup_skb prog types to other cgroup hooks.(CVE-2024-38564)
In the Linux kernel, the following vulnerability has been resolved:
rcu-tasks: Fix show_rcu_tasks_trace_gp_kthread buffer overflow
There is a possibility of buffer overflow in show_rcu_tasks_trace_gp_kthread() if counters, passed to sprintf() are huge. Counter numbers, needed for this are unrealistically high, but buffer overflow is still possible.
Use snprintf() with buffer size instead of sprintf().
Found by Linux Verification Center (linuxtesting.org) with SVACE.(CVE-2024-38577)
In the Linux kernel, the following vulnerability has been resolved:
crypto: bcm - Fix pointer arithmetic
In spu2_dump_omd() value of ptr is increased by ciph_key_len instead of hash_iv_len which could lead to going beyond the buffer boundaries. Fix this bug by changing ciph_key_len to hash_iv_len.
Found by Linux Verification Center (linuxtesting.org) with SVACE.(CVE-2024-38579)
In the Linux kernel, the following vulnerability has been resolved:
nilfs2: fix potential hang in nilfs_detach_log_writer()
Syzbot has reported a potential hang in nilfs_detach_log_writer() called during nilfs2 unmount.
Analysis revealed that this is because nilfs_segctor_sync(), which synchronizes with the log writer thread, can be called after nilfs_segctor_destroy() terminates that thread, as shown in the call trace below:
nilfs_detach_log_writer nilfs_segctor_destroy nilfs_segctor_kill_thread --> Shut down log writer thread flush_work nilfs_iput_work_func nilfs_dispose_list iput nilfs_evict_inode nilfs_transaction_commit nilfs_construct_segment (if inode needs sync) nilfs_segctor_sync --> Attempt to synchronize with log writer thread *** DEADLOCK ***
Fix this issue by changing nilfs_segctor_sync() so that the log writer thread returns normally without synchronizing after it terminates, and by forcing tasks that are already waiting to complete once after the thread terminates.
The skipped inode metadata flushout will then be processed together in the subsequent cleanup work in nilfs_segctor_destroy().(CVE-2024-38582)
In the Linux kernel, the following vulnerability has been resolved:
ftrace: Fix possible use-after-free issue in ftrace_location()
KASAN reports a bug:
BUG: KASAN: use-after-free in ftrace_location+0x90/0x120 Read of size 8 at addr ffff888141d40010 by task insmod/424 CPU: 8 PID: 424 Comm: insmod Tainted: G W 6.9.0-rc2+ [...] Call Trace: <TASK> dump_stack_lvl+0x68/0xa0 print_report+0xcf/0x610 kasan_report+0xb5/0xe0 ftrace_location+0x90/0x120 register_kprobe+0x14b/0xa40 kprobe_init+0x2d/0xff0 [kprobe_example] do_one_initcall+0x8f/0x2d0 do_init_module+0x13a/0x3c0 load_module+0x3082/0x33d0 init_module_from_file+0xd2/0x130 __x64_sys_finit_module+0x306/0x440 do_syscall_64+0x68/0x140 entry_SYSCALL_64_after_hwframe+0x71/0x79
The root cause is that, in lookup_rec(), ftrace record of some address is being searched in ftrace pages of some module, but those ftrace pages at the same time is being freed in ftrace_release_mod() as the corresponding module is being deleted:
CPU1 | CPU2
register_kprobes() { | delete_module() { check_kprobe_address_safe() { | arch_check_ftrace_location() { | ftrace_location() { | lookup_rec() // USE! | ftrace_release_mod() // Free!
To fix this issue: 1. Hold rcu lock as accessing ftrace pages in ftrace_location_range(); 2. Use ftrace_location_range() instead of lookup_rec() in ftrace_location(); 3. Call synchronize_rcu() before freeing any ftrace pages both in ftrace_process_locs()/ftrace_release_mod()/ftrace_free_mem().(CVE-2024-38588)
In the Linux kernel, the following vulnerability has been resolved:
md: fix resync softlockup when bitmap size is less than array size
Is is reported that for dm-raid10, lvextend + lvchange --syncaction will trigger following softlockup:
kernel:watchdog: BUG: soft lockup - CPU#3 stuck for 26s! [mdX_resync:6976] CPU: 7 PID: 3588 Comm: mdX_resync Kdump: loaded Not tainted 6.9.0-rc4-next-20240419 #1 RIP: 0010:_raw_spin_unlock_irq+0x13/0x30 Call Trace: <TASK> md_bitmap_start_sync+0x6b/0xf0 raid10_sync_request+0x25c/0x1b40 [raid10] md_do_sync+0x64b/0x1020 md_thread+0xa7/0x170 kthread+0xcf/0x100 ret_from_fork+0x30/0x50 ret_from_fork_asm+0x1a/0x30
And the detailed process is as follows:
md_do_sync j = mddev->resync_min while (j < max_sectors) sectors = raid10_sync_request(mddev, j, &skipped) if (!md_bitmap_start_sync(..., &sync_blocks)) // md_bitmap_start_sync set sync_blocks to 0 return sync_blocks + sectors_skippe; // sectors = 0; j += sectors; // j never change
Root cause is that commit 301867b1c168 ("md/raid10: check slab-out-of-bounds in md_bitmap_get_counter") return early from md_bitmap_get_counter(), without setting returned blocks.
Fix this problem by always set returned blocks from md_bitmap_get_counter"(), as it used to be.
Noted that this patch just fix the softlockup problem in kernel, the case that bitmap size doesn't match array size still need to be fixed.(CVE-2024-38598)
In the Linux kernel, the following vulnerability has been resolved:
jffs2: prevent xattr node from overflowing the eraseblock
Add a check to make sure that the requested xattr node size is no larger than the eraseblock minus the cleanmarker.
Unlike the usual inode nodes, the xattr nodes aren't split into parts and spread across multiple eraseblocks, which means that a xattr node must not occupy more than one eraseblock. If the requested xattr value is too large, the xattr node can spill onto the next eraseblock, overwriting the nodes and causing errors such as:
jffs2: argh. node added in wrong place at 0x0000b050(2) jffs2: nextblock 0x0000a000, expected at 0000b00c jffs2: error: (823) do_verify_xattr_datum: node CRC failed at 0x01e050, read=0xfc892c93, calc=0x000000 jffs2: notice: (823) jffs2_get_inode_nodes: Node header CRC failed at 0x01e00c. {848f,2fc4,0fef511f,59a3d171} jffs2: Node at 0x0000000c with length 0x00001044 would run over the end of the erase block jffs2: Perhaps the file system was created with the wrong erase size? jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000010: 0x1044 instead
This breaks the filesystem and can lead to KASAN crashes such as:
BUG: KASAN: slab-out-of-bounds in jffs2_sum_add_kvec+0x125e/0x15d0 Read of size 4 at addr ffff88802c31e914 by task repro/830 CPU: 0 PID: 830 Comm: repro Not tainted 6.9.0-rc3+ #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Arch Linux 1.16.3-1-1 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0xc6/0x120 print_report+0xc4/0x620 ? __virt_addr_valid+0x308/0x5b0 kasan_report+0xc1/0xf0 ? jffs2_sum_add_kvec+0x125e/0x15d0 ? jffs2_sum_add_kvec+0x125e/0x15d0 jffs2_sum_add_kvec+0x125e/0x15d0 jffs2_flash_direct_writev+0xa8/0xd0 jffs2_flash_writev+0x9c9/0xef0 ? __x64_sys_setxattr+0xc4/0x160 ? do_syscall_64+0x69/0x140 ? entry_SYSCALL_64_after_hwframe+0x76/0x7e [...]
Found by Linux Verification Center (linuxtesting.org) with Syzkaller.(CVE-2024-38599)
In the Linux kernel, the following vulnerability has been resolved:
ax25: Fix reference count leak issues of ax25_dev
The ax25_addr_ax25dev() and ax25_dev_device_down() exist a reference count leak issue of the object "ax25_dev".
Memory leak issue in ax25_addr_ax25dev():
The reference count of the object "ax25_dev" can be increased multiple times in ax25_addr_ax25dev(). This will cause a memory leak.
Memory leak issues in ax25_dev_device_down():
The reference count of ax25_dev is set to 1 in ax25_dev_device_up() and then increase the reference count when ax25_dev is added to ax25_dev_list. As a result, the reference count of ax25_dev is 2. But when the device is shutting down. The ax25_dev_device_down() drops the reference count once or twice depending on if we goto unlock_put or not, which will cause memory leak.
As for the issue of ax25_addr_ax25dev(), it is impossible for one pointer to be on a list twice. So add a break in ax25_addr_ax25dev(). As for the issue of ax25_dev_device_down(), increase the reference count of ax25_dev once in ax25_dev_device_up() and decrease the reference count of ax25_dev after it is removed from the ax25_dev_list.(CVE-2024-38602)
In the Linux kernel, the following vulnerability has been resolved:
block: refine the EOF check in blkdev_iomap_begin
blkdev_iomap_begin rounds down the offset to the logical block size before stashing it in iomap->offset and checking that it still is inside the inode size.
Check the i_size check to the raw pos value so that we don't try a zero size write if iter->pos is unaligned.(CVE-2024-38604)
In the Linux kernel, the following vulnerability has been resolved:
drivers/virt/acrn: fix PFNMAP PTE checks in acrn_vm_ram_map()
Patch series "mm: follow_pte() improvements and acrn follow_pte() fixes".
Patch #1 fixes a bunch of issues I spotted in the acrn driver. It compiles, that's all I know. I'll appreciate some review and testing from acrn folks.
Patch #2+#3 improve follow_pte(), passing a VMA instead of the MM, adding more sanity checks, and improving the documentation. Gave it a quick test on x86-64 using VM_PAT that ends up using follow_pte().
This patch (of 3):
We currently miss handling various cases, resulting in a dangerous follow_pte() (previously follow_pfn()) usage.
(1) We're not checking PTE write permissions.
Maybe we should simply always require pte_write() like we do for pin_user_pages_fast(FOLL_WRITE)? Hard to tell, so let's check for ACRN_MEM_ACCESS_WRITE for now.
(2) We're not rejecting refcounted pages.
As we are not using MMU notifiers, messing with refcounted pages is dangerous and can result in use-after-free. Let's make sure to reject them.
(3) We are only looking at the first PTE of a bigger range.
We only lookup a single PTE, but memmap->len may span a larger area. Let's loop over all involved PTEs and make sure the PFN range is actually contiguous. Reject everything else: it couldn't have worked either way, and rather made use access PFNs we shouldn't be accessing.(CVE-2024-38610)
In the Linux kernel, the following vulnerability has been resolved:
drm/msm/dpu: Add callback function pointer check before its call
In dpu_core_irq_callback_handler() callback function pointer is compared to NULL, but then callback function is unconditionally called by this pointer. Fix this bug by adding conditional return.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Patchwork: https://patchwork.freedesktop.org/patch/588237/(CVE-2024-38622)
In the Linux kernel, the following vulnerability has been resolved:
fs/ntfs3: Use variable length array instead of fixed size
Should fix smatch warning: ntfs_set_label() error: __builtin_memcpy() 'uni->name' too small (20 vs 256)(CVE-2024-38623)
In the Linux kernel, the following vulnerability has been resolved:
fs/ntfs3: Use 64 bit variable to avoid 32 bit overflow
For example, in the expression: vbo = 2 * vbo + skip(CVE-2024-38624)
In the Linux kernel, the following vulnerability has been resolved:
fs/ntfs3: Check 'folio' pointer for NULL
It can be NULL if bmap is called.(CVE-2024-38625)
In the Linux kernel, the following vulnerability has been resolved:
usb: gadget: u_audio: Fix race condition use of controls after free during gadget unbind.
Hang on to the control IDs instead of pointers since those are correctly handled with locks.(CVE-2024-38628)
In the Linux kernel, the following vulnerability has been resolved:
dmaengine: idxd: Avoid unnecessary destruction of file_ida
file_ida is allocated during cdev open and is freed accordingly during cdev release. This sequence is guaranteed by driver file operations. Therefore, there is no need to destroy an already empty file_ida when the WQ cdev is removed.
Worse, ida_free() in cdev release may happen after destruction of file_ida per WQ cdev. This can lead to accessing an id in file_ida after it has been destroyed, resulting in a kernel panic.
Remove ida_destroy(&file_ida) to address these issues.(CVE-2024-38629)
In the Linux kernel, the following vulnerability has been resolved:
watchdog: cpu5wdt.c: Fix use-after-free bug caused by cpu5wdt_trigger
When the cpu5wdt module is removing, the origin code uses del_timer() to de-activate the timer. If the timer handler is running, del_timer() could not stop it and will return directly. If the port region is released by release_region() and then the timer handler cpu5wdt_trigger() calls outb() to write into the region that is released, the use-after-free bug will happen.
Change del_timer() to timer_shutdown_sync() in order that the timer handler could be finished before the port region is released.(CVE-2024-38630)
In the Linux kernel, the following vulnerability has been resolved:
serial: max3100: Lock port->lock when calling uart_handle_cts_change()
uart_handle_cts_change() has to be called with port lock taken, Since we run it in a separate work, the lock may not be taken at the time of running. Make sure that it's taken by explicitly doing that. Without it we got a splat:
WARNING: CPU: 0 PID: 10 at drivers/tty/serial/serial_core.c:3491 uart_handle_cts_change+0xa6/0xb0 ... Workqueue: max3100-0 max3100_work [max3100] RIP: 0010:uart_handle_cts_change+0xa6/0xb0 ... max3100_handlerx+0xc5/0x110 [max3100] max3100_work+0x12a/0x340 max3100
In the Linux kernel, the following vulnerability has been resolved:
greybus: lights: check return of get_channel_from_mode
If channel for the given node is not found we return null from get_channel_from_mode. Make sure we validate the return pointer before using it in two of the missing places.
This was originally reported in [0]: Found by Linux Verification Center (linuxtesting.org) with SVACE.
[0] https://lore.kernel.org/all/20240301190425.120605-1-m.lobanov@rosalinux.ru(CVE-2024-38637)
In the Linux kernel, the following vulnerability has been resolved:
bpf: Allow delete from sockmap/sockhash only if update is allowed
We have seen an influx of syzkaller reports where a BPF program attached to a tracepoint triggers a locking rule violation by performing a map_delete on a sockmap/sockhash.
We don't intend to support this artificial use scenario. Extend the existing verifier allowed-program-type check for updating sockmap/sockhash to also cover deleting from a map.
From now on only BPF programs which were previously allowed to update sockmap/sockhash can delete from these map types.(CVE-2024-38662)
In the Linux kernel, the following vulnerability has been resolved:
drm: zynqmp_dpsub: Always register bridge
We must always register the DRM bridge, since zynqmp_dp_hpd_work_func calls drm_bridge_hpd_notify, which in turn expects hpd_mutex to be initialized. We do this before zynqmp_dpsub_drm_init since that calls drm_bridge_attach. This fixes the following lockdep warning:
[ 19.217084] ------------[ cut here ]------------ [ 19.227530] DEBUG_LOCKS_WARN_ON(lock->magic != lock) [ 19.227768] WARNING: CPU: 0 PID: 140 at kernel/locking/mutex.c:582 __mutex_lock+0x4bc/0x550 [ 19.241696] Modules linked in: [ 19.244937] CPU: 0 PID: 140 Comm: kworker/0:4 Not tainted 6.6.20+ #96 [ 19.252046] Hardware name: xlnx,zynqmp (DT) [ 19.256421] Workqueue: events zynqmp_dp_hpd_work_func [ 19.261795] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 19.269104] pc : __mutex_lock+0x4bc/0x550 [ 19.273364] lr : __mutex_lock+0x4bc/0x550 [ 19.277592] sp : ffffffc085c5bbe0 [ 19.281066] x29: ffffffc085c5bbe0 x28: 0000000000000000 x27: ffffff88009417f8 [ 19.288624] x26: ffffff8800941788 x25: ffffff8800020008 x24: ffffffc082aa3000 [ 19.296227] x23: ffffffc080d90e3c x22: 0000000000000002 x21: 0000000000000000 [ 19.303744] x20: 0000000000000000 x19: ffffff88002f5210 x18: 0000000000000000 [ 19.311295] x17: 6c707369642e3030 x16: 3030613464662072 x15: 0720072007200720 [ 19.318922] x14: 0000000000000000 x13: 284e4f5f4e524157 x12: 0000000000000001 [ 19.326442] x11: 0001ffc085c5b940 x10: 0001ff88003f388b x9 : 0001ff88003f3888 [ 19.334003] x8 : 0001ff88003f3888 x7 : 0000000000000000 x6 : 0000000000000000 [ 19.341537] x5 : 0000000000000000 x4 : 0000000000001668 x3 : 0000000000000000 [ 19.349054] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffffff88003f3880 [ 19.356581] Call trace: [ 19.359160] __mutex_lock+0x4bc/0x550 [ 19.363032] mutex_lock_nested+0x24/0x30 [ 19.367187] drm_bridge_hpd_notify+0x2c/0x6c [ 19.371698] zynqmp_dp_hpd_work_func+0x44/0x54 [ 19.376364] process_one_work+0x3ac/0x988 [ 19.380660] worker_thread+0x398/0x694 [ 19.384736] kthread+0x1bc/0x1c0 [ 19.388241] ret_from_fork+0x10/0x20 [ 19.392031] irq event stamp: 183 [ 19.395450] hardirqs last enabled at (183): [<ffffffc0800b9278>] finish_task_switch.isra.0+0xa8/0x2d4 [ 19.405140] hardirqs last disabled at (182): [<ffffffc081ad3754>] __schedule+0x714/0xd04 [ 19.413612] softirqs last enabled at (114): [<ffffffc080133de8>] srcu_invoke_callbacks+0x158/0x23c [ 19.423128] softirqs last disabled at (110): [<ffffffc080133de8>] srcu_invoke_callbacks+0x158/0x23c [ 19.432614] ---[ end trace 0000000000000000 ]---
(cherry picked from commit 61ba791c4a7a09a370c45b70a81b8c7d4cf6b2ae)(CVE-2024-38664)
In the Linux kernel, the following vulnerability has been resolved:
dma-buf/sw-sync: don't enable IRQ from sync_print_obj()
Since commit a6aa8fca4d79 ("dma-buf/sw-sync: Reduce irqsave/irqrestore from known context") by error replaced spin_unlock_irqrestore() with spin_unlock_irq() for both sync_debugfs_show() and sync_print_obj() despite sync_print_obj() is called from sync_debugfs_show(), lockdep complains inconsistent lock state warning.
Use plain spin_{lock,unlock}() for sync_print_obj(), for sync_debugfs_show() is already using spin_{lock,unlock}_irq().(CVE-2024-38780)
In the Linux kernel, the following vulnerability has been resolved:
bonding: fix oops during rmmod
"rmmod bonding" causes an oops ever since commit cc317ea3d927 ("bonding: remove redundant NULL check in debugfs function"). Here are the relevant functions being called:
bonding_exit() bond_destroy_debugfs() debugfs_remove_recursive(bonding_debug_root); bonding_debug_root = NULL; <--------- SET TO NULL HERE bond_netlink_fini() rtnl_link_unregister() __rtnl_link_unregister() unregister_netdevice_many_notify() bond_uninit() bond_debug_unregister() (commit removed check for bonding_debug_root == NULL) debugfs_remove() simple_recursive_removal() down_write() -> OOPS
However, reverting the bad commit does not solve the problem completely because the original code contains a race that could cause the same oops, although it was much less likely to be triggered unintentionally:
CPU1 rmmod bonding bonding_exit() bond_destroy_debugfs() debugfs_remove_recursive(bonding_debug_root);
CPU2 echo -bond0 > /sys/class/net/bonding_masters bond_uninit() bond_debug_unregister() if (!bonding_debug_root)
CPU1 bonding_debug_root = NULL;
So do NOT revert the bad commit (since the removed checks were racy anyway), and instead change the order of actions taken during module removal. The same oops can also happen if there is an error during module init, so apply the same fix there.(CVE-2024-39296)
In the Linux kernel, the following vulnerability has been resolved:
net/9p: fix uninit-value in p9_client_rpc()
Syzbot with the help of KMSAN reported the following error:
BUG: KMSAN: uninit-value in trace_9p_client_res include/trace/events/9p.h:146 [inline] BUG: KMSAN: uninit-value in p9_client_rpc+0x1314/0x1340 net/9p/client.c:754 trace_9p_client_res include/trace/events/9p.h:146 [inline] p9_client_rpc+0x1314/0x1340 net/9p/client.c:754 p9_client_create+0x1551/0x1ff0 net/9p/client.c:1031 v9fs_session_init+0x1b9/0x28e0 fs/9p/v9fs.c:410 v9fs_mount+0xe2/0x12b0 fs/9p/vfs_super.c:122 legacy_get_tree+0x114/0x290 fs/fs_context.c:662 vfs_get_tree+0xa7/0x570 fs/super.c:1797 do_new_mount+0x71f/0x15e0 fs/namespace.c:3352 path_mount+0x742/0x1f20 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount+0x725/0x810 fs/namespace.c:3875 __x64_sys_mount+0xe4/0x150 fs/namespace.c:3875 do_syscall_64+0xd5/0x1f0 entry_SYSCALL_64_after_hwframe+0x6d/0x75
Uninit was created at: __alloc_pages+0x9d6/0xe70 mm/page_alloc.c:4598 __alloc_pages_node include/linux/gfp.h:238 [inline] alloc_pages_node include/linux/gfp.h:261 [inline] alloc_slab_page mm/slub.c:2175 [inline] allocate_slab mm/slub.c:2338 [inline] new_slab+0x2de/0x1400 mm/slub.c:2391 slaballoc+0x1184/0x33d0 mm/slub.c:3525 slab_alloc mm/slub.c:3610 [inline] __slab_alloc_node mm/slub.c:3663 [inline] slab_alloc_node mm/slub.c:3835 [inline] kmem_cache_alloc+0x6d3/0xbe0 mm/slub.c:3852 p9_tag_alloc net/9p/client.c:278 [inline] p9_client_prepare_req+0x20a/0x1770 net/9p/client.c:641 p9_client_rpc+0x27e/0x1340 net/9p/client.c:688 p9_client_create+0x1551/0x1ff0 net/9p/client.c:1031 v9fs_session_init+0x1b9/0x28e0 fs/9p/v9fs.c:410 v9fs_mount+0xe2/0x12b0 fs/9p/vfs_super.c:122 legacy_get_tree+0x114/0x290 fs/fs_context.c:662 vfs_get_tree+0xa7/0x570 fs/super.c:1797 do_new_mount+0x71f/0x15e0 fs/namespace.c:3352 path_mount+0x742/0x1f20 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount+0x725/0x810 fs/namespace.c:3875 __x64_sys_mount+0xe4/0x150 fs/namespace.c:3875 do_syscall_64+0xd5/0x1f0 entry_SYSCALL_64_after_hwframe+0x6d/0x75
If p9_check_errors() fails early in p9_client_rpc(), req->rc.tag will not be properly initialized. However, trace_9p_client_res() ends up trying to print it out anyway before p9_client_rpc() finishes.
Fix this issue by assigning default values to p9_fcall fields such as 'tag' and (just in case KMSAN unearths something new) 'id' during the tag allocation stage.(CVE-2024-39301)
Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.(CVE-2024-39362)
In the Linux kernel, the following vulnerability has been resolved:
io_uring: check for non-NULL file pointer in io_file_can_poll()
In earlier kernels, it was possible to trigger a NULL pointer dereference off the forced async preparation path, if no file had been assigned. The trace leading to that looks as follows:
BUG: kernel NULL pointer dereference, address: 00000000000000b0 PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP CPU: 67 PID: 1633 Comm: buf-ring-invali Not tainted 6.8.0-rc3+ #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS unknown 2/2/2022 RIP: 0010:io_buffer_select+0xc3/0x210 Code: 00 00 48 39 d1 0f 82 ae 00 00 00 48 81 4b 48 00 00 01 00 48 89 73 70 0f b7 50 0c 66 89 53 42 85 ed 0f 85 d2 00 00 00 48 8b 13 <48> 8b 92 b0 00 00 00 48 83 7a 40 00 0f 84 21 01 00 00 4c 8b 20 5b RSP: 0018:ffffb7bec38c7d88 EFLAGS: 00010246 RAX: ffff97af2be61000 RBX: ffff97af234f1700 RCX: 0000000000000040 RDX: 0000000000000000 RSI: ffff97aecfb04820 RDI: ffff97af234f1700 RBP: 0000000000000000 R08: 0000000000200030 R09: 0000000000000020 R10: ffffb7bec38c7dc8 R11: 000000000000c000 R12: ffffb7bec38c7db8 R13: ffff97aecfb05800 R14: ffff97aecfb05800 R15: ffff97af2be5e000 FS: 00007f852f74b740(0000) GS:ffff97b1eeec0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000000000b0 CR3: 000000016deab005 CR4: 0000000000370ef0 Call Trace: <TASK> ? __die+0x1f/0x60 ? page_fault_oops+0x14d/0x420 ? do_user_addr_fault+0x61/0x6a0 ? exc_page_fault+0x6c/0x150 ? asm_exc_page_fault+0x22/0x30 ? io_buffer_select+0xc3/0x210 __io_import_iovec+0xb5/0x120 io_readv_prep_async+0x36/0x70 io_queue_sqe_fallback+0x20/0x260 io_submit_sqes+0x314/0x630 __do_sys_io_uring_enter+0x339/0xbc0 ? __do_sys_io_uring_register+0x11b/0xc50 ? vm_mmap_pgoff+0xce/0x160 do_syscall_64+0x5f/0x180 entry_SYSCALL_64_after_hwframe+0x46/0x4e RIP: 0033:0x55e0a110a67e Code: ba cc 00 00 00 45 31 c0 44 0f b6 92 d0 00 00 00 31 d2 41 b9 08 00 00 00 41 83 e2 01 41 c1 e2 04 41 09 c2 b8 aa 01 00 00 0f 05 <c3> 90 89 30 eb a9 0f 1f 40 00 48 8b 42 20 8b 00 a8 06 75 af 85 f6
because the request is marked forced ASYNC and has a bad file fd, and hence takes the forced async prep path.
Current kernels with the request async prep cleaned up can no longer hit this issue, but for ease of backporting, let's add this safety check in here too as it really doesn't hurt. For both cases, this will inevitably end with a CQE posted with -EBADF.(CVE-2024-39371)
In the Linux kernel, the following vulnerability has been resolved:
clk: bcm: rpi: Assign ->num before accessing ->hws
Commit f316cdff8d67 ("clk: Annotate struct clk_hw_onecell_data with __counted_by") annotated the hws member of 'struct clk_hw_onecell_data' with __counted_by, which informs the bounds sanitizer about the number of elements in hws, so that it can warn when hws is accessed out of bounds. As noted in that change, the __counted_by member must be initialized with the number of elements before the first array access happens, otherwise there will be a warning from each access prior to the initialization because the number of elements is zero. This occurs in raspberrypi_discover_clocks() due to ->num being assigned after ->hws has been accessed:
UBSAN: array-index-out-of-bounds in drivers/clk/bcm/clk-raspberrypi.c:374:4 index 3 is out of range for type 'struct clk_hw [] __counted_by(num)' (aka 'struct clk_hw []')
Move the ->num initialization to before the first access of ->hws, which clears up the warning.(CVE-2024-39461)
In the Linux kernel, the following vulnerability has been resolved:
thermal/drivers/qcom/lmh: Check for SCM availability at probe
Up until now, the necessary scm availability check has not been performed, leading to possible null pointer dereferences (which did happen for me on RB1).
Fix that.(CVE-2024-39466)
In the Linux kernel, the following vulnerability has been resolved:
f2fs: fix to do sanity check on i_xattr_nid in sanity_check_inode()
syzbot reports a kernel bug as below:
F2FS-fs (loop0): Mounted with checkpoint version = 48b305e4
BUG: KASAN: slab-out-of-bounds in f2fs_test_bit fs/f2fs/f2fs.h:2933 [inline] BUG: KASAN: slab-out-of-bounds in current_nat_addr fs/f2fs/node.h:213 [inline] BUG: KASAN: slab-out-of-bounds in f2fs_get_node_info+0xece/0x1200 fs/f2fs/node.c:600 Read of size 1 at addr ffff88807a58c76c by task syz-executor280/5076
CPU: 1 PID: 5076 Comm: syz-executor280 Not tainted 6.9.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 print_address_description mm/kasan/report.c:377 [inline] print_report+0x169/0x550 mm/kasan/report.c:488 kasan_report+0x143/0x180 mm/kasan/report.c:601 f2fs_test_bit fs/f2fs/f2fs.h:2933 [inline] current_nat_addr fs/f2fs/node.h:213 [inline] f2fs_get_node_info+0xece/0x1200 fs/f2fs/node.c:600 f2fs_xattr_fiemap fs/f2fs/data.c:1848 [inline] f2fs_fiemap+0x55d/0x1ee0 fs/f2fs/data.c:1925 ioctl_fiemap fs/ioctl.c:220 [inline] do_vfs_ioctl+0x1c07/0x2e50 fs/ioctl.c:838 __do_sys_ioctl fs/ioctl.c:902 [inline] __se_sys_ioctl+0x81/0x170 fs/ioctl.c:890 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f
The root cause is we missed to do sanity check on i_xattr_nid during f2fs_iget(), so that in fiemap() path, current_nat_addr() will access nat_bitmap w/ offset from invalid i_xattr_nid, result in triggering kasan bug report, fix it.(CVE-2024-39467)
In the Linux kernel, the following vulnerability has been resolved:
smb: client: fix deadlock in smb2_find_smb_tcon()
Unlock cifs_tcp_ses_lock before calling cifs_put_smb_ses() to avoid such deadlock.(CVE-2024-39468)
In the Linux kernel, the following vulnerability has been resolved:
eventfs: Fix a possible null pointer dereference in eventfs_find_events()
In function eventfs_find_events,there is a potential null pointer that may be caused by calling update_events_attr which will perform some operations on the members of the ei struct when ei is NULL.
Hence,When ei->is_freed is set,return NULL directly.(CVE-2024-39470)
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{
"affected": [
{
"ecosystem_specific": {
"aarch64": [
"bpftool-6.6.0-33.0.0.40.oe2403.aarch64.rpm",
"bpftool-debuginfo-6.6.0-33.0.0.40.oe2403.aarch64.rpm",
"kernel-6.6.0-33.0.0.40.oe2403.aarch64.rpm",
"kernel-debuginfo-6.6.0-33.0.0.40.oe2403.aarch64.rpm",
"kernel-debugsource-6.6.0-33.0.0.40.oe2403.aarch64.rpm",
"kernel-devel-6.6.0-33.0.0.40.oe2403.aarch64.rpm",
"kernel-headers-6.6.0-33.0.0.40.oe2403.aarch64.rpm",
"kernel-source-6.6.0-33.0.0.40.oe2403.aarch64.rpm",
"kernel-tools-6.6.0-33.0.0.40.oe2403.aarch64.rpm",
"kernel-tools-debuginfo-6.6.0-33.0.0.40.oe2403.aarch64.rpm",
"kernel-tools-devel-6.6.0-33.0.0.40.oe2403.aarch64.rpm",
"perf-6.6.0-33.0.0.40.oe2403.aarch64.rpm",
"perf-debuginfo-6.6.0-33.0.0.40.oe2403.aarch64.rpm",
"python3-perf-6.6.0-33.0.0.40.oe2403.aarch64.rpm",
"python3-perf-debuginfo-6.6.0-33.0.0.40.oe2403.aarch64.rpm"
],
"src": [
"kernel-6.6.0-33.0.0.40.oe2403.src.rpm"
],
"x86_64": [
"bpftool-6.6.0-33.0.0.40.oe2403.x86_64.rpm",
"bpftool-debuginfo-6.6.0-33.0.0.40.oe2403.x86_64.rpm",
"kernel-6.6.0-33.0.0.40.oe2403.x86_64.rpm",
"kernel-debuginfo-6.6.0-33.0.0.40.oe2403.x86_64.rpm",
"kernel-debugsource-6.6.0-33.0.0.40.oe2403.x86_64.rpm",
"kernel-devel-6.6.0-33.0.0.40.oe2403.x86_64.rpm",
"kernel-headers-6.6.0-33.0.0.40.oe2403.x86_64.rpm",
"kernel-source-6.6.0-33.0.0.40.oe2403.x86_64.rpm",
"kernel-tools-6.6.0-33.0.0.40.oe2403.x86_64.rpm",
"kernel-tools-debuginfo-6.6.0-33.0.0.40.oe2403.x86_64.rpm",
"kernel-tools-devel-6.6.0-33.0.0.40.oe2403.x86_64.rpm",
"perf-6.6.0-33.0.0.40.oe2403.x86_64.rpm",
"perf-debuginfo-6.6.0-33.0.0.40.oe2403.x86_64.rpm",
"python3-perf-6.6.0-33.0.0.40.oe2403.x86_64.rpm",
"python3-perf-debuginfo-6.6.0-33.0.0.40.oe2403.x86_64.rpm"
]
},
"package": {
"ecosystem": "openEuler:24.03-LTS",
"name": "kernel",
"purl": "pkg:rpm/openEuler/kernel\u0026distro=openEuler-24.03-LTS"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "6.6.0-33.0.0.40.oe2403"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"severity": "Critical"
},
"details": "The Linux Kernel, the operating system core itself.\r\n\r\nSecurity Fix(es):\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nmedia: lgdt3306a: Add a check against null-pointer-def\r\n\r\nThe driver should check whether the client provides the platform_data.\r\n\r\nThe following log reveals it:\r\n\r\n[ 29.610324] BUG: KASAN: null-ptr-deref in kmemdup+0x30/0x40\n[ 29.610730] Read of size 40 at addr 0000000000000000 by task bash/414\n[ 29.612820] Call Trace:\n[ 29.613030] \u0026lt;TASK\u0026gt;\n[ 29.613201] dump_stack_lvl+0x56/0x6f\n[ 29.613496] ? kmemdup+0x30/0x40\n[ 29.613754] print_report.cold+0x494/0x6b7\n[ 29.614082] ? kmemdup+0x30/0x40\n[ 29.614340] kasan_report+0x8a/0x190\n[ 29.614628] ? kmemdup+0x30/0x40\n[ 29.614888] kasan_check_range+0x14d/0x1d0\n[ 29.615213] memcpy+0x20/0x60\n[ 29.615454] kmemdup+0x30/0x40\n[ 29.615700] lgdt3306a_probe+0x52/0x310\n[ 29.616339] i2c_device_probe+0x951/0xa90(CVE-2022-48772)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ngenirq/cpuhotplug, x86/vector: Prevent vector leak during CPU offline\r\n\r\nThe absence of IRQD_MOVE_PCNTXT prevents immediate effectiveness of\ninterrupt affinity reconfiguration via procfs. Instead, the change is\ndeferred until the next instance of the interrupt being triggered on the\noriginal CPU.\r\n\r\nWhen the interrupt next triggers on the original CPU, the new affinity is\nenforced within __irq_move_irq(). A vector is allocated from the new CPU,\nbut the old vector on the original CPU remains and is not immediately\nreclaimed. Instead, apicd-\u0026gt;move_in_progress is flagged, and the reclaiming\nprocess is delayed until the next trigger of the interrupt on the new CPU.\r\n\r\nUpon the subsequent triggering of the interrupt on the new CPU,\nirq_complete_move() adds a task to the old CPU\u0026apos;s vector_cleanup list if it\nremains online. Subsequently, the timer on the old CPU iterates over its\nvector_cleanup list, reclaiming old vectors.\r\n\r\nHowever, a rare scenario arises if the old CPU is outgoing before the\ninterrupt triggers again on the new CPU.\r\n\r\nIn that case irq_force_complete_move() is not invoked on the outgoing CPU\nto reclaim the old apicd-\u0026gt;prev_vector because the interrupt isn\u0026apos;t currently\naffine to the outgoing CPU, and irq_needs_fixup() returns false. Even\nthough __vector_schedule_cleanup() is later called on the new CPU, it\ndoesn\u0026apos;t reclaim apicd-\u0026gt;prev_vector; instead, it simply resets both\napicd-\u0026gt;move_in_progress and apicd-\u0026gt;prev_vector to 0.\r\n\r\nAs a result, the vector remains unreclaimed in vector_matrix, leading to a\nCPU vector leak.\r\n\r\nTo address this issue, move the invocation of irq_force_complete_move()\nbefore the irq_needs_fixup() call to reclaim apicd-\u0026gt;prev_vector, if the\ninterrupt is currently or used to be affine to the outgoing CPU.\r\n\r\nAdditionally, reclaim the vector in __vector_schedule_cleanup() as well,\nfollowing a warning message, although theoretically it should never see\napicd-\u0026gt;move_in_progress with apicd-\u0026gt;prev_cpu pointing to an offline CPU.(CVE-2024-31076)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ntls: fix missing memory barrier in tls_init\r\n\r\nIn tls_init(), a write memory barrier is missing, and store-store\nreordering may cause NULL dereference in tls_{setsockopt,getsockopt}.\r\n\r\nCPU0 CPU1\n----- -----\n// In tls_init()\n// In tls_ctx_create()\nctx = kzalloc()\nctx-\u0026gt;sk_proto = READ_ONCE(sk-\u0026gt;sk_prot) -(1)\r\n\r\n// In update_sk_prot()\nWRITE_ONCE(sk-\u0026gt;sk_prot, tls_prots) -(2)\r\n\r\n // In sock_common_setsockopt()\n READ_ONCE(sk-\u0026gt;sk_prot)-\u0026gt;setsockopt()\r\n\r\n // In tls_{setsockopt,getsockopt}()\n ctx-\u0026gt;sk_proto-\u0026gt;setsockopt() -(3)\r\n\r\nIn the above scenario, when (1) and (2) are reordered, (3) can observe\nthe NULL value of ctx-\u0026gt;sk_proto, causing NULL dereference.\r\n\r\nTo fix it, we rely on rcu_assign_pointer() which implies the release\nbarrier semantic. By moving rcu_assign_pointer() after ctx-\u0026gt;sk_proto is\ninitialized, we can ensure that ctx-\u0026gt;sk_proto are visible when\nchanging sk-\u0026gt;sk_prot.(CVE-2024-36489)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\namd/amdkfd: sync all devices to wait all processes being evicted\r\n\r\nIf there are more than one device doing reset in parallel, the first\ndevice will call kfd_suspend_all_processes() to evict all processes\non all devices, this call takes time to finish. other device will\nstart reset and recover without waiting. if the process has not been\nevicted before doing recover, it will be restored, then caused page\nfault.(CVE-2024-36949)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nscsi: lpfc: Move NPIV\u0026apos;s transport unregistration to after resource clean up\r\n\r\nThere are cases after NPIV deletion where the fabric switch still believes\nthe NPIV is logged into the fabric. This occurs when a vport is\nunregistered before the Remove All DA_ID CT and LOGO ELS are sent to the\nfabric.\r\n\r\nCurrently fc_remove_host(), which calls dev_loss_tmo for all D_IDs including\nthe fabric D_ID, removes the last ndlp reference and frees the ndlp rport\nobject. This sometimes causes the race condition where the final DA_ID and\nLOGO are skipped from being sent to the fabric switch.\r\n\r\nFix by moving the fc_remove_host() and scsi_remove_host() calls after DA_ID\nand LOGO are sent.(CVE-2024-36952)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nnet: ks8851: Queue RX packets in IRQ handler instead of disabling BHs\r\n\r\nCurrently the driver uses local_bh_disable()/local_bh_enable() in its\nIRQ handler to avoid triggering net_rx_action() softirq on exit from\nnetif_rx(). The net_rx_action() could trigger this driver .start_xmit\ncallback, which is protected by the same lock as the IRQ handler, so\ncalling the .start_xmit from netif_rx() from the IRQ handler critical\nsection protected by the lock could lead to an attempt to claim the\nalready claimed lock, and a hang.\r\n\r\nThe local_bh_disable()/local_bh_enable() approach works only in case\nthe IRQ handler is protected by a spinlock, but does not work if the\nIRQ handler is protected by mutex, i.e. this works for KS8851 with\nParallel bus interface, but not for KS8851 with SPI bus interface.\r\n\r\nRemove the BH manipulation and instead of calling netif_rx() inside\nthe IRQ handler code protected by the lock, queue all the received\nSKBs in the IRQ handler into a queue first, and once the IRQ handler\nexits the critical section protected by the lock, dequeue all the\nqueued SKBs and push them all into netif_rx(). At this point, it is\nsafe to trigger the net_rx_action() softirq, since the netif_rx()\ncall is outside of the lock that protects the IRQ handler.(CVE-2024-36962)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nremoteproc: mediatek: Make sure IPI buffer fits in L2TCM\r\n\r\nThe IPI buffer location is read from the firmware that we load to the\nSystem Companion Processor, and it\u0026apos;s not granted that both the SRAM\n(L2TCM) size that is defined in the devicetree node is large enough\nfor that, and while this is especially true for multi-core SCP, it\u0026apos;s\nstill useful to check on single-core variants as well.\r\n\r\nFailing to perform this check may make this driver perform R/W\noperations out of the L2TCM boundary, resulting (at best) in a\nkernel panic.\r\n\r\nTo fix that, check that the IPI buffer fits, otherwise return a\nfailure and refuse to boot the relevant SCP core (or the SCP at\nall, if this is single core).(CVE-2024-36965)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nvirtio: delete vq in vp_find_vqs_msix() when request_irq() fails\r\n\r\nWhen request_irq() fails, error path calls vp_del_vqs(). There, as vq is\npresent in the list, free_irq() is called for the same vector. That\ncauses following splat:\r\n\r\n[ 0.414355] Trying to free already-free IRQ 27\n[ 0.414403] WARNING: CPU: 1 PID: 1 at kernel/irq/manage.c:1899 free_irq+0x1a1/0x2d0\n[ 0.414510] Modules linked in:\n[ 0.414540] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 6.9.0-rc4+ #27\n[ 0.414540] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-1.fc39 04/01/2014\n[ 0.414540] RIP: 0010:free_irq+0x1a1/0x2d0\n[ 0.414540] Code: 1e 00 48 83 c4 08 48 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 90 8b 74 24 04 48 c7 c7 98 80 6c b1 e8 00 c9 f7 ff 90 \u0026lt;0f\u0026gt; 0b 90 90 48 89 ee 4c 89 ef e8 e0 20 b8 00 49 8b 47 40 48 8b 40\n[ 0.414540] RSP: 0000:ffffb71480013ae0 EFLAGS: 00010086\n[ 0.414540] RAX: 0000000000000000 RBX: ffffa099c2722000 RCX: 0000000000000000\n[ 0.414540] RDX: 0000000000000000 RSI: ffffb71480013998 RDI: 0000000000000001\n[ 0.414540] RBP: 0000000000000246 R08: 00000000ffffdfff R09: 0000000000000001\n[ 0.414540] R10: 00000000ffffdfff R11: ffffffffb18729c0 R12: ffffa099c1c91760\n[ 0.414540] R13: ffffa099c1c916a4 R14: ffffa099c1d2f200 R15: ffffa099c1c91600\n[ 0.414540] FS: 0000000000000000(0000) GS:ffffa099fec40000(0000) knlGS:0000000000000000\n[ 0.414540] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 0.414540] CR2: 0000000000000000 CR3: 0000000008e3e001 CR4: 0000000000370ef0\n[ 0.414540] Call Trace:\n[ 0.414540] \u0026lt;TASK\u0026gt;\n[ 0.414540] ? __warn+0x80/0x120\n[ 0.414540] ? free_irq+0x1a1/0x2d0\n[ 0.414540] ? report_bug+0x164/0x190\n[ 0.414540] ? handle_bug+0x3b/0x70\n[ 0.414540] ? exc_invalid_op+0x17/0x70\n[ 0.414540] ? asm_exc_invalid_op+0x1a/0x20\n[ 0.414540] ? free_irq+0x1a1/0x2d0\n[ 0.414540] vp_del_vqs+0xc1/0x220\n[ 0.414540] vp_find_vqs_msix+0x305/0x470\n[ 0.414540] vp_find_vqs+0x3e/0x1a0\n[ 0.414540] vp_modern_find_vqs+0x1b/0x70\n[ 0.414540] init_vqs+0x387/0x600\n[ 0.414540] virtnet_probe+0x50a/0xc80\n[ 0.414540] virtio_dev_probe+0x1e0/0x2b0\n[ 0.414540] really_probe+0xc0/0x2c0\n[ 0.414540] ? __pfx___driver_attach+0x10/0x10\n[ 0.414540] __driver_probe_device+0x73/0x120\n[ 0.414540] driver_probe_device+0x1f/0xe0\n[ 0.414540] __driver_attach+0x88/0x180\n[ 0.414540] bus_for_each_dev+0x85/0xd0\n[ 0.414540] bus_add_driver+0xec/0x1f0\n[ 0.414540] driver_register+0x59/0x100\n[ 0.414540] ? __pfx_virtio_net_driver_init+0x10/0x10\n[ 0.414540] virtio_net_driver_init+0x90/0xb0\n[ 0.414540] do_one_initcall+0x58/0x230\n[ 0.414540] kernel_init_freeable+0x1a3/0x2d0\n[ 0.414540] ? __pfx_kernel_init+0x10/0x10\n[ 0.414540] kernel_init+0x1a/0x1c0\n[ 0.414540] ret_from_fork+0x31/0x50\n[ 0.414540] ? __pfx_kernel_init+0x10/0x10\n[ 0.414540] ret_from_fork_asm+0x1a/0x30\n[ 0.414540] \u0026lt;/TASK\u0026gt;\r\n\r\nFix this by calling deleting the current vq when request_irq() fails.(CVE-2024-37353)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nbtrfs: fix crash on racing fsync and size-extending write into prealloc\r\n\r\nWe have been seeing crashes on duplicate keys in\nbtrfs_set_item_key_safe():\r\n\r\n BTRFS critical (device vdb): slot 4 key (450 108 8192) new key (450 108 8192)\n ------------[ cut here ]------------\n kernel BUG at fs/btrfs/ctree.c:2620!\n invalid opcode: 0000 [#1] PREEMPT SMP PTI\n CPU: 0 PID: 3139 Comm: xfs_io Kdump: loaded Not tainted 6.9.0 #6\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-2.fc40 04/01/2014\n RIP: 0010:btrfs_set_item_key_safe+0x11f/0x290 [btrfs]\r\n\r\nWith the following stack trace:\r\n\r\n #0 btrfs_set_item_key_safe (fs/btrfs/ctree.c:2620:4)\n #1 btrfs_drop_extents (fs/btrfs/file.c:411:4)\n #2 log_one_extent (fs/btrfs/tree-log.c:4732:9)\n #3 btrfs_log_changed_extents (fs/btrfs/tree-log.c:4955:9)\n #4 btrfs_log_inode (fs/btrfs/tree-log.c:6626:9)\n #5 btrfs_log_inode_parent (fs/btrfs/tree-log.c:7070:8)\n #6 btrfs_log_dentry_safe (fs/btrfs/tree-log.c:7171:8)\n #7 btrfs_sync_file (fs/btrfs/file.c:1933:8)\n #8 vfs_fsync_range (fs/sync.c:188:9)\n #9 vfs_fsync (fs/sync.c:202:9)\n #10 do_fsync (fs/sync.c:212:9)\n #11 __do_sys_fdatasync (fs/sync.c:225:9)\n #12 __se_sys_fdatasync (fs/sync.c:223:1)\n #13 __x64_sys_fdatasync (fs/sync.c:223:1)\n #14 do_syscall_x64 (arch/x86/entry/common.c:52:14)\n #15 do_syscall_64 (arch/x86/entry/common.c:83:7)\n #16 entry_SYSCALL_64+0xaf/0x14c (arch/x86/entry/entry_64.S:121)\r\n\r\nSo we\u0026apos;re logging a changed extent from fsync, which is splitting an\nextent in the log tree. But this split part already exists in the tree,\ntriggering the BUG().\r\n\r\nThis is the state of the log tree at the time of the crash, dumped with\ndrgn (https://github.com/osandov/drgn/blob/main/contrib/btrfs_tree.py)\nto get more details than btrfs_print_leaf() gives us:\r\n\r\n \u0026gt;\u0026gt;\u0026gt; print_extent_buffer(prog.crashed_thread().stack_trace()[0][\u0026quot;eb\u0026quot;])\n leaf 33439744 level 0 items 72 generation 9 owner 18446744073709551610\n leaf 33439744 flags 0x100000000000000\n fs uuid e5bd3946-400c-4223-8923-190ef1f18677\n chunk uuid d58cb17e-6d02-494a-829a-18b7d8a399da\n item 0 key (450 INODE_ITEM 0) itemoff 16123 itemsize 160\n generation 7 transid 9 size 8192 nbytes 8473563889606862198\n block group 0 mode 100600 links 1 uid 0 gid 0 rdev 0\n sequence 204 flags 0x10(PREALLOC)\n atime 1716417703.220000000 (2024-05-22 15:41:43)\n ctime 1716417704.983333333 (2024-05-22 15:41:44)\n mtime 1716417704.983333333 (2024-05-22 15:41:44)\n otime 17592186044416.000000000 (559444-03-08 01:40:16)\n item 1 key (450 INODE_REF 256) itemoff 16110 itemsize 13\n index 195 namelen 3 name: 193\n item 2 key (450 XATTR_ITEM 1640047104) itemoff 16073 itemsize 37\n location key (0 UNKNOWN.0 0) type XATTR\n transid 7 data_len 1 name_len 6\n name: user.a\n data a\n item 3 key (450 EXTENT_DATA 0) itemoff 16020 itemsize 53\n generation 9 type 1 (regular)\n extent data disk byte 303144960 nr 12288\n extent data offset 0 nr 4096 ram 12288\n extent compression 0 (none)\n item 4 key (450 EXTENT_DATA 4096) itemoff 15967 itemsize 53\n generation 9 type 2 (prealloc)\n prealloc data disk byte 303144960 nr 12288\n prealloc data offset 4096 nr 8192\n item 5 key (450 EXTENT_DATA 8192) itemoff 15914 itemsize 53\n generation 9 type 2 (prealloc)\n prealloc data disk byte 303144960 nr 12288\n prealloc data offset 8192 nr 4096\n ...\r\n\r\nSo the real problem happened earlier: notice that items 4 (4k-12k) and 5\n(8k-12k) overlap. Both are prealloc extents. Item 4 straddles i_size and\nitem 5 starts at i_size.\r\n\r\nHere is the state of \n---truncated---(CVE-2024-37354)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ntcp: Fix shift-out-of-bounds in dctcp_update_alpha().\r\n\r\nIn dctcp_update_alpha(), we use a module parameter dctcp_shift_g\nas follows:\r\n\r\n alpha -= min_not_zero(alpha, alpha \u0026gt;\u0026gt; dctcp_shift_g);\n ...\n delivered_ce \u0026lt;\u0026lt;= (10 - dctcp_shift_g);\r\n\r\nIt seems syzkaller started fuzzing module parameters and triggered\nshift-out-of-bounds [0] by setting 100 to dctcp_shift_g:\r\n\r\n memcpy((void*)0x20000080,\n \u0026quot;/sys/module/tcp_dctcp/parameters/dctcp_shift_g\\000\u0026quot;, 47);\n res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x20000080ul,\n /*flags=*/2ul, /*mode=*/0ul);\n memcpy((void*)0x20000000, \u0026quot;100\\000\u0026quot;, 4);\n syscall(__NR_write, /*fd=*/r[0], /*val=*/0x20000000ul, /*len=*/4ul);\r\n\r\nLet\u0026apos;s limit the max value of dctcp_shift_g by param_set_uint_minmax().\r\n\r\nWith this patch:\r\n\r\n # echo 10 \u0026gt; /sys/module/tcp_dctcp/parameters/dctcp_shift_g\n # cat /sys/module/tcp_dctcp/parameters/dctcp_shift_g\n 10\n # echo 11 \u0026gt; /sys/module/tcp_dctcp/parameters/dctcp_shift_g\n -bash: echo: write error: Invalid argument\r\n\r\n[0]:\nUBSAN: shift-out-of-bounds in net/ipv4/tcp_dctcp.c:143:12\nshift exponent 100 is too large for 32-bit type \u0026apos;u32\u0026apos; (aka \u0026apos;unsigned int\u0026apos;)\nCPU: 0 PID: 8083 Comm: syz-executor345 Not tainted 6.9.0-05151-g1b294a1f3561 #2\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS\n1.13.0-1ubuntu1.1 04/01/2014\nCall Trace:\n \u0026lt;TASK\u0026gt;\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0x201/0x300 lib/dump_stack.c:114\n ubsan_epilogue lib/ubsan.c:231 [inline]\n __ubsan_handle_shift_out_of_bounds+0x346/0x3a0 lib/ubsan.c:468\n dctcp_update_alpha+0x540/0x570 net/ipv4/tcp_dctcp.c:143\n tcp_in_ack_event net/ipv4/tcp_input.c:3802 [inline]\n tcp_ack+0x17b1/0x3bc0 net/ipv4/tcp_input.c:3948\n tcp_rcv_state_process+0x57a/0x2290 net/ipv4/tcp_input.c:6711\n tcp_v4_do_rcv+0x764/0xc40 net/ipv4/tcp_ipv4.c:1937\n sk_backlog_rcv include/net/sock.h:1106 [inline]\n __release_sock+0x20f/0x350 net/core/sock.c:2983\n release_sock+0x61/0x1f0 net/core/sock.c:3549\n mptcp_subflow_shutdown+0x3d0/0x620 net/mptcp/protocol.c:2907\n mptcp_check_send_data_fin+0x225/0x410 net/mptcp/protocol.c:2976\n __mptcp_close+0x238/0xad0 net/mptcp/protocol.c:3072\n mptcp_close+0x2a/0x1a0 net/mptcp/protocol.c:3127\n inet_release+0x190/0x1f0 net/ipv4/af_inet.c:437\n __sock_release net/socket.c:659 [inline]\n sock_close+0xc0/0x240 net/socket.c:1421\n __fput+0x41b/0x890 fs/file_table.c:422\n task_work_run+0x23b/0x300 kernel/task_work.c:180\n exit_task_work include/linux/task_work.h:38 [inline]\n do_exit+0x9c8/0x2540 kernel/exit.c:878\n do_group_exit+0x201/0x2b0 kernel/exit.c:1027\n __do_sys_exit_group kernel/exit.c:1038 [inline]\n __se_sys_exit_group kernel/exit.c:1036 [inline]\n __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1036\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xe4/0x240 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x67/0x6f\nRIP: 0033:0x7f6c2b5005b6\nCode: Unable to access opcode bytes at 0x7f6c2b50058c.\nRSP: 002b:00007ffe883eb948 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7\nRAX: ffffffffffffffda RBX: 00007f6c2b5862f0 RCX: 00007f6c2b5005b6\nRDX: 0000000000000001 RSI: 000000000000003c RDI: 0000000000000001\nRBP: 0000000000000001 R08: 00000000000000e7 R09: ffffffffffffffc0\nR10: 0000000000000006 R11: 0000000000000246 R12: 00007f6c2b5862f0\nR13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001\n \u0026lt;/TASK\u0026gt;(CVE-2024-37356)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nASoC: mediatek: Assign dummy when codec not specified for a DAI link\r\n\r\nMediaTek sound card drivers are checking whether a DAI link is present\nand used on a board to assign the correct parameters and this is done\nby checking the codec DAI names at probe time.\r\n\r\nIf no real codec is present, assign the dummy codec to the DAI link\nto avoid NULL pointer during string comparison.(CVE-2024-38551)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ndrm/amd/display: Fix potential index out of bounds in color transformation function\r\n\r\nFixes index out of bounds issue in the color transformation function.\nThe issue could occur when the index \u0026apos;i\u0026apos; exceeds the number of transfer\nfunction points (TRANSFER_FUNC_POINTS).\r\n\r\nThe fix adds a check to ensure \u0026apos;i\u0026apos; is within bounds before accessing the\ntransfer function points. If \u0026apos;i\u0026apos; is out of bounds, an error message is\nlogged and the function returns false to indicate an error.\r\n\r\nReported by smatch:\ndrivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:405 cm_helper_translate_curve_to_hw_format() error: buffer overflow \u0026apos;output_tf-\u0026gt;tf_pts.red\u0026apos; 1025 \u0026lt;= s32max\ndrivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:406 cm_helper_translate_curve_to_hw_format() error: buffer overflow \u0026apos;output_tf-\u0026gt;tf_pts.green\u0026apos; 1025 \u0026lt;= s32max\ndrivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:407 cm_helper_translate_curve_to_hw_format() error: buffer overflow \u0026apos;output_tf-\u0026gt;tf_pts.blue\u0026apos; 1025 \u0026lt;= s32max(CVE-2024-38552)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nax25: Fix reference count leak issue of net_device\r\n\r\nThere is a reference count leak issue of the object \u0026quot;net_device\u0026quot; in\nax25_dev_device_down(). When the ax25 device is shutting down, the\nax25_dev_device_down() drops the reference count of net_device one\nor zero times depending on if we goto unlock_put or not, which will\ncause memory leak.\r\n\r\nIn order to solve the above issue, decrease the reference count of\nnet_device after dev-\u0026gt;ax25_ptr is set to null.(CVE-2024-38554)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nnet/mlx5: Discard command completions in internal error\r\n\r\nFix use after free when FW completion arrives while device is in\ninternal error state. Avoid calling completion handler in this case,\nsince the device will flush the command interface and trigger all\ncompletions manually.\r\n\r\nKernel log:\n------------[ cut here ]------------\nrefcount_t: underflow; use-after-free.\n...\nRIP: 0010:refcount_warn_saturate+0xd8/0xe0\n...\nCall Trace:\n\u0026lt;IRQ\u0026gt;\n? __warn+0x79/0x120\n? refcount_warn_saturate+0xd8/0xe0\n? report_bug+0x17c/0x190\n? handle_bug+0x3c/0x60\n? exc_invalid_op+0x14/0x70\n? asm_exc_invalid_op+0x16/0x20\n? refcount_warn_saturate+0xd8/0xe0\ncmd_ent_put+0x13b/0x160 [mlx5_core]\nmlx5_cmd_comp_handler+0x5f9/0x670 [mlx5_core]\ncmd_comp_notifier+0x1f/0x30 [mlx5_core]\nnotifier_call_chain+0x35/0xb0\natomic_notifier_call_chain+0x16/0x20\nmlx5_eq_async_int+0xf6/0x290 [mlx5_core]\nnotifier_call_chain+0x35/0xb0\natomic_notifier_call_chain+0x16/0x20\nirq_int_handler+0x19/0x30 [mlx5_core]\n__handle_irq_event_percpu+0x4b/0x160\nhandle_irq_event+0x2e/0x80\nhandle_edge_irq+0x98/0x230\n__common_interrupt+0x3b/0xa0\ncommon_interrupt+0x7b/0xa0\n\u0026lt;/IRQ\u0026gt;\n\u0026lt;TASK\u0026gt;\nasm_common_interrupt+0x22/0x40(CVE-2024-38555)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nwifi: nl80211: Avoid address calculations via out of bounds array indexing\r\n\r\nBefore request-\u0026gt;channels[] can be used, request-\u0026gt;n_channels must be set.\nAdditionally, address calculations for memory after the \u0026quot;channels\u0026quot; array\nneed to be calculated from the allocation base (\u0026quot;request\u0026quot;) rather than\nvia the first \u0026quot;out of bounds\u0026quot; index of \u0026quot;channels\u0026quot;, otherwise run-time\nbounds checking will throw a warning.(CVE-2024-38562)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nbpf: Add BPF_PROG_TYPE_CGROUP_SKB attach type enforcement in BPF_LINK_CREATE\r\n\r\nbpf_prog_attach uses attach_type_to_prog_type to enforce proper\nattach type for BPF_PROG_TYPE_CGROUP_SKB. link_create uses\nbpf_prog_get and relies on bpf_prog_attach_check_attach_type\nto properly verify prog_type \u0026lt;\u0026gt; attach_type association.\r\n\r\nAdd missing attach_type enforcement for the link_create case.\nOtherwise, it\u0026apos;s currently possible to attach cgroup_skb prog\ntypes to other cgroup hooks.(CVE-2024-38564)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nrcu-tasks: Fix show_rcu_tasks_trace_gp_kthread buffer overflow\r\n\r\nThere is a possibility of buffer overflow in\nshow_rcu_tasks_trace_gp_kthread() if counters, passed\nto sprintf() are huge. Counter numbers, needed for this\nare unrealistically high, but buffer overflow is still\npossible.\r\n\r\nUse snprintf() with buffer size instead of sprintf().\r\n\r\nFound by Linux Verification Center (linuxtesting.org) with SVACE.(CVE-2024-38577)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ncrypto: bcm - Fix pointer arithmetic\r\n\r\nIn spu2_dump_omd() value of ptr is increased by ciph_key_len\ninstead of hash_iv_len which could lead to going beyond the\nbuffer boundaries.\nFix this bug by changing ciph_key_len to hash_iv_len.\r\n\r\nFound by Linux Verification Center (linuxtesting.org) with SVACE.(CVE-2024-38579)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nnilfs2: fix potential hang in nilfs_detach_log_writer()\r\n\r\nSyzbot has reported a potential hang in nilfs_detach_log_writer() called\nduring nilfs2 unmount.\r\n\r\nAnalysis revealed that this is because nilfs_segctor_sync(), which\nsynchronizes with the log writer thread, can be called after\nnilfs_segctor_destroy() terminates that thread, as shown in the call trace\nbelow:\r\n\r\nnilfs_detach_log_writer\n nilfs_segctor_destroy\n nilfs_segctor_kill_thread --\u0026gt; Shut down log writer thread\n flush_work\n nilfs_iput_work_func\n nilfs_dispose_list\n iput\n nilfs_evict_inode\n nilfs_transaction_commit\n nilfs_construct_segment (if inode needs sync)\n nilfs_segctor_sync --\u0026gt; Attempt to synchronize with\n log writer thread\n *** DEADLOCK ***\r\n\r\nFix this issue by changing nilfs_segctor_sync() so that the log writer\nthread returns normally without synchronizing after it terminates, and by\nforcing tasks that are already waiting to complete once after the thread\nterminates.\r\n\r\nThe skipped inode metadata flushout will then be processed together in the\nsubsequent cleanup work in nilfs_segctor_destroy().(CVE-2024-38582)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nftrace: Fix possible use-after-free issue in ftrace_location()\r\n\r\nKASAN reports a bug:\r\n\r\n BUG: KASAN: use-after-free in ftrace_location+0x90/0x120\n Read of size 8 at addr ffff888141d40010 by task insmod/424\n CPU: 8 PID: 424 Comm: insmod Tainted: G W 6.9.0-rc2+\n [...]\n Call Trace:\n \u0026lt;TASK\u0026gt;\n dump_stack_lvl+0x68/0xa0\n print_report+0xcf/0x610\n kasan_report+0xb5/0xe0\n ftrace_location+0x90/0x120\n register_kprobe+0x14b/0xa40\n kprobe_init+0x2d/0xff0 [kprobe_example]\n do_one_initcall+0x8f/0x2d0\n do_init_module+0x13a/0x3c0\n load_module+0x3082/0x33d0\n init_module_from_file+0xd2/0x130\n __x64_sys_finit_module+0x306/0x440\n do_syscall_64+0x68/0x140\n entry_SYSCALL_64_after_hwframe+0x71/0x79\r\n\r\nThe root cause is that, in lookup_rec(), ftrace record of some address\nis being searched in ftrace pages of some module, but those ftrace pages\nat the same time is being freed in ftrace_release_mod() as the\ncorresponding module is being deleted:\r\n\r\n CPU1 | CPU2\n register_kprobes() { | delete_module() {\n check_kprobe_address_safe() { |\n arch_check_ftrace_location() { |\n ftrace_location() { |\n lookup_rec() // USE! | ftrace_release_mod() // Free!\r\n\r\nTo fix this issue:\n 1. Hold rcu lock as accessing ftrace pages in ftrace_location_range();\n 2. Use ftrace_location_range() instead of lookup_rec() in\n ftrace_location();\n 3. Call synchronize_rcu() before freeing any ftrace pages both in\n ftrace_process_locs()/ftrace_release_mod()/ftrace_free_mem().(CVE-2024-38588)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nmd: fix resync softlockup when bitmap size is less than array size\r\n\r\nIs is reported that for dm-raid10, lvextend + lvchange --syncaction will\ntrigger following softlockup:\r\n\r\nkernel:watchdog: BUG: soft lockup - CPU#3 stuck for 26s! [mdX_resync:6976]\nCPU: 7 PID: 3588 Comm: mdX_resync Kdump: loaded Not tainted 6.9.0-rc4-next-20240419 #1\nRIP: 0010:_raw_spin_unlock_irq+0x13/0x30\nCall Trace:\n \u0026lt;TASK\u0026gt;\n md_bitmap_start_sync+0x6b/0xf0\n raid10_sync_request+0x25c/0x1b40 [raid10]\n md_do_sync+0x64b/0x1020\n md_thread+0xa7/0x170\n kthread+0xcf/0x100\n ret_from_fork+0x30/0x50\n ret_from_fork_asm+0x1a/0x30\r\n\r\nAnd the detailed process is as follows:\r\n\r\nmd_do_sync\n j = mddev-\u0026gt;resync_min\n while (j \u0026lt; max_sectors)\n sectors = raid10_sync_request(mddev, j, \u0026amp;skipped)\n if (!md_bitmap_start_sync(..., \u0026amp;sync_blocks))\n // md_bitmap_start_sync set sync_blocks to 0\n return sync_blocks + sectors_skippe;\n // sectors = 0;\n j += sectors;\n // j never change\r\n\r\nRoot cause is that commit 301867b1c168 (\u0026quot;md/raid10: check\nslab-out-of-bounds in md_bitmap_get_counter\u0026quot;) return early from\nmd_bitmap_get_counter(), without setting returned blocks.\r\n\r\nFix this problem by always set returned blocks from\nmd_bitmap_get_counter\u0026quot;(), as it used to be.\r\n\r\nNoted that this patch just fix the softlockup problem in kernel, the\ncase that bitmap size doesn\u0026apos;t match array size still need to be fixed.(CVE-2024-38598)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\njffs2: prevent xattr node from overflowing the eraseblock\r\n\r\nAdd a check to make sure that the requested xattr node size is no larger\nthan the eraseblock minus the cleanmarker.\r\n\r\nUnlike the usual inode nodes, the xattr nodes aren\u0026apos;t split into parts\nand spread across multiple eraseblocks, which means that a xattr node\nmust not occupy more than one eraseblock. If the requested xattr value is\ntoo large, the xattr node can spill onto the next eraseblock, overwriting\nthe nodes and causing errors such as:\r\n\r\njffs2: argh. node added in wrong place at 0x0000b050(2)\njffs2: nextblock 0x0000a000, expected at 0000b00c\njffs2: error: (823) do_verify_xattr_datum: node CRC failed at 0x01e050,\nread=0xfc892c93, calc=0x000000\njffs2: notice: (823) jffs2_get_inode_nodes: Node header CRC failed\nat 0x01e00c. {848f,2fc4,0fef511f,59a3d171}\njffs2: Node at 0x0000000c with length 0x00001044 would run over the\nend of the erase block\njffs2: Perhaps the file system was created with the wrong erase size?\njffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found\nat 0x00000010: 0x1044 instead\r\n\r\nThis breaks the filesystem and can lead to KASAN crashes such as:\r\n\r\nBUG: KASAN: slab-out-of-bounds in jffs2_sum_add_kvec+0x125e/0x15d0\nRead of size 4 at addr ffff88802c31e914 by task repro/830\nCPU: 0 PID: 830 Comm: repro Not tainted 6.9.0-rc3+ #1\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996),\nBIOS Arch Linux 1.16.3-1-1 04/01/2014\nCall Trace:\n \u0026lt;TASK\u0026gt;\n dump_stack_lvl+0xc6/0x120\n print_report+0xc4/0x620\n ? __virt_addr_valid+0x308/0x5b0\n kasan_report+0xc1/0xf0\n ? jffs2_sum_add_kvec+0x125e/0x15d0\n ? jffs2_sum_add_kvec+0x125e/0x15d0\n jffs2_sum_add_kvec+0x125e/0x15d0\n jffs2_flash_direct_writev+0xa8/0xd0\n jffs2_flash_writev+0x9c9/0xef0\n ? __x64_sys_setxattr+0xc4/0x160\n ? do_syscall_64+0x69/0x140\n ? entry_SYSCALL_64_after_hwframe+0x76/0x7e\n [...]\r\n\r\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller.(CVE-2024-38599)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nax25: Fix reference count leak issues of ax25_dev\r\n\r\nThe ax25_addr_ax25dev() and ax25_dev_device_down() exist a reference\ncount leak issue of the object \u0026quot;ax25_dev\u0026quot;.\r\n\r\nMemory leak issue in ax25_addr_ax25dev():\r\n\r\nThe reference count of the object \u0026quot;ax25_dev\u0026quot; can be increased multiple\ntimes in ax25_addr_ax25dev(). This will cause a memory leak.\r\n\r\nMemory leak issues in ax25_dev_device_down():\r\n\r\nThe reference count of ax25_dev is set to 1 in ax25_dev_device_up() and\nthen increase the reference count when ax25_dev is added to ax25_dev_list.\nAs a result, the reference count of ax25_dev is 2. But when the device is\nshutting down. The ax25_dev_device_down() drops the reference count once\nor twice depending on if we goto unlock_put or not, which will cause\nmemory leak.\r\n\r\nAs for the issue of ax25_addr_ax25dev(), it is impossible for one pointer\nto be on a list twice. So add a break in ax25_addr_ax25dev(). As for the\nissue of ax25_dev_device_down(), increase the reference count of ax25_dev\nonce in ax25_dev_device_up() and decrease the reference count of ax25_dev\nafter it is removed from the ax25_dev_list.(CVE-2024-38602)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nblock: refine the EOF check in blkdev_iomap_begin\r\n\r\nblkdev_iomap_begin rounds down the offset to the logical block size\nbefore stashing it in iomap-\u0026gt;offset and checking that it still is\ninside the inode size.\r\n\r\nCheck the i_size check to the raw pos value so that we don\u0026apos;t try a\nzero size write if iter-\u0026gt;pos is unaligned.(CVE-2024-38604)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ndrivers/virt/acrn: fix PFNMAP PTE checks in acrn_vm_ram_map()\r\n\r\nPatch series \u0026quot;mm: follow_pte() improvements and acrn follow_pte() fixes\u0026quot;.\r\n\r\nPatch #1 fixes a bunch of issues I spotted in the acrn driver. It\ncompiles, that\u0026apos;s all I know. I\u0026apos;ll appreciate some review and testing from\nacrn folks.\r\n\r\nPatch #2+#3 improve follow_pte(), passing a VMA instead of the MM, adding\nmore sanity checks, and improving the documentation. Gave it a quick test\non x86-64 using VM_PAT that ends up using follow_pte().\r\n\r\n\nThis patch (of 3):\r\n\r\nWe currently miss handling various cases, resulting in a dangerous\nfollow_pte() (previously follow_pfn()) usage.\r\n\r\n(1) We\u0026apos;re not checking PTE write permissions.\r\n\r\nMaybe we should simply always require pte_write() like we do for\npin_user_pages_fast(FOLL_WRITE)? Hard to tell, so let\u0026apos;s check for\nACRN_MEM_ACCESS_WRITE for now.\r\n\r\n(2) We\u0026apos;re not rejecting refcounted pages.\r\n\r\nAs we are not using MMU notifiers, messing with refcounted pages is\ndangerous and can result in use-after-free. Let\u0026apos;s make sure to reject them.\r\n\r\n(3) We are only looking at the first PTE of a bigger range.\r\n\r\nWe only lookup a single PTE, but memmap-\u0026gt;len may span a larger area.\nLet\u0026apos;s loop over all involved PTEs and make sure the PFN range is\nactually contiguous. Reject everything else: it couldn\u0026apos;t have worked\neither way, and rather made use access PFNs we shouldn\u0026apos;t be accessing.(CVE-2024-38610)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ndrm/msm/dpu: Add callback function pointer check before its call\r\n\r\nIn dpu_core_irq_callback_handler() callback function pointer is compared to NULL,\nbut then callback function is unconditionally called by this pointer.\nFix this bug by adding conditional return.\r\n\r\nFound by Linux Verification Center (linuxtesting.org) with SVACE.\r\n\r\nPatchwork: https://patchwork.freedesktop.org/patch/588237/(CVE-2024-38622)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nfs/ntfs3: Use variable length array instead of fixed size\r\n\r\nShould fix smatch warning:\n\tntfs_set_label() error: __builtin_memcpy() \u0026apos;uni-\u0026gt;name\u0026apos; too small (20 vs 256)(CVE-2024-38623)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nfs/ntfs3: Use 64 bit variable to avoid 32 bit overflow\r\n\r\nFor example, in the expression:\n\tvbo = 2 * vbo + skip(CVE-2024-38624)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nfs/ntfs3: Check \u0026apos;folio\u0026apos; pointer for NULL\r\n\r\nIt can be NULL if bmap is called.(CVE-2024-38625)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nusb: gadget: u_audio: Fix race condition use of controls after free during gadget unbind.\r\n\r\nHang on to the control IDs instead of pointers since those are correctly\nhandled with locks.(CVE-2024-38628)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ndmaengine: idxd: Avoid unnecessary destruction of file_ida\r\n\r\nfile_ida is allocated during cdev open and is freed accordingly\nduring cdev release. This sequence is guaranteed by driver file\noperations. Therefore, there is no need to destroy an already empty\nfile_ida when the WQ cdev is removed.\r\n\r\nWorse, ida_free() in cdev release may happen after destruction of\nfile_ida per WQ cdev. This can lead to accessing an id in file_ida\nafter it has been destroyed, resulting in a kernel panic.\r\n\r\nRemove ida_destroy(\u0026amp;file_ida) to address these issues.(CVE-2024-38629)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nwatchdog: cpu5wdt.c: Fix use-after-free bug caused by cpu5wdt_trigger\r\n\r\nWhen the cpu5wdt module is removing, the origin code uses del_timer() to\nde-activate the timer. If the timer handler is running, del_timer() could\nnot stop it and will return directly. If the port region is released by\nrelease_region() and then the timer handler cpu5wdt_trigger() calls outb()\nto write into the region that is released, the use-after-free bug will\nhappen.\r\n\r\nChange del_timer() to timer_shutdown_sync() in order that the timer handler\ncould be finished before the port region is released.(CVE-2024-38630)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nserial: max3100: Lock port-\u0026gt;lock when calling uart_handle_cts_change()\r\n\r\nuart_handle_cts_change() has to be called with port lock taken,\nSince we run it in a separate work, the lock may not be taken at\nthe time of running. Make sure that it\u0026apos;s taken by explicitly doing\nthat. Without it we got a splat:\r\n\r\n WARNING: CPU: 0 PID: 10 at drivers/tty/serial/serial_core.c:3491 uart_handle_cts_change+0xa6/0xb0\n ...\n Workqueue: max3100-0 max3100_work [max3100]\n RIP: 0010:uart_handle_cts_change+0xa6/0xb0\n ...\n max3100_handlerx+0xc5/0x110 [max3100]\n max3100_work+0x12a/0x340 [max3100](CVE-2024-38634)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ngreybus: lights: check return of get_channel_from_mode\r\n\r\nIf channel for the given node is not found we return null from\nget_channel_from_mode. Make sure we validate the return pointer\nbefore using it in two of the missing places.\r\n\r\nThis was originally reported in [0]:\nFound by Linux Verification Center (linuxtesting.org) with SVACE.\r\n\r\n[0] https://lore.kernel.org/all/20240301190425.120605-1-m.lobanov@rosalinux.ru(CVE-2024-38637)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nbpf: Allow delete from sockmap/sockhash only if update is allowed\r\n\r\nWe have seen an influx of syzkaller reports where a BPF program attached to\na tracepoint triggers a locking rule violation by performing a map_delete\non a sockmap/sockhash.\r\n\r\nWe don\u0026apos;t intend to support this artificial use scenario. Extend the\nexisting verifier allowed-program-type check for updating sockmap/sockhash\nto also cover deleting from a map.\r\n\r\nFrom now on only BPF programs which were previously allowed to update\nsockmap/sockhash can delete from these map types.(CVE-2024-38662)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ndrm: zynqmp_dpsub: Always register bridge\r\n\r\nWe must always register the DRM bridge, since zynqmp_dp_hpd_work_func\ncalls drm_bridge_hpd_notify, which in turn expects hpd_mutex to be\ninitialized. We do this before zynqmp_dpsub_drm_init since that calls\ndrm_bridge_attach. This fixes the following lockdep warning:\r\n\r\n[ 19.217084] ------------[ cut here ]------------\n[ 19.227530] DEBUG_LOCKS_WARN_ON(lock-\u0026gt;magic != lock)\n[ 19.227768] WARNING: CPU: 0 PID: 140 at kernel/locking/mutex.c:582 __mutex_lock+0x4bc/0x550\n[ 19.241696] Modules linked in:\n[ 19.244937] CPU: 0 PID: 140 Comm: kworker/0:4 Not tainted 6.6.20+ #96\n[ 19.252046] Hardware name: xlnx,zynqmp (DT)\n[ 19.256421] Workqueue: events zynqmp_dp_hpd_work_func\n[ 19.261795] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[ 19.269104] pc : __mutex_lock+0x4bc/0x550\n[ 19.273364] lr : __mutex_lock+0x4bc/0x550\n[ 19.277592] sp : ffffffc085c5bbe0\n[ 19.281066] x29: ffffffc085c5bbe0 x28: 0000000000000000 x27: ffffff88009417f8\n[ 19.288624] x26: ffffff8800941788 x25: ffffff8800020008 x24: ffffffc082aa3000\n[ 19.296227] x23: ffffffc080d90e3c x22: 0000000000000002 x21: 0000000000000000\n[ 19.303744] x20: 0000000000000000 x19: ffffff88002f5210 x18: 0000000000000000\n[ 19.311295] x17: 6c707369642e3030 x16: 3030613464662072 x15: 0720072007200720\n[ 19.318922] x14: 0000000000000000 x13: 284e4f5f4e524157 x12: 0000000000000001\n[ 19.326442] x11: 0001ffc085c5b940 x10: 0001ff88003f388b x9 : 0001ff88003f3888\n[ 19.334003] x8 : 0001ff88003f3888 x7 : 0000000000000000 x6 : 0000000000000000\n[ 19.341537] x5 : 0000000000000000 x4 : 0000000000001668 x3 : 0000000000000000\n[ 19.349054] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffffff88003f3880\n[ 19.356581] Call trace:\n[ 19.359160] __mutex_lock+0x4bc/0x550\n[ 19.363032] mutex_lock_nested+0x24/0x30\n[ 19.367187] drm_bridge_hpd_notify+0x2c/0x6c\n[ 19.371698] zynqmp_dp_hpd_work_func+0x44/0x54\n[ 19.376364] process_one_work+0x3ac/0x988\n[ 19.380660] worker_thread+0x398/0x694\n[ 19.384736] kthread+0x1bc/0x1c0\n[ 19.388241] ret_from_fork+0x10/0x20\n[ 19.392031] irq event stamp: 183\n[ 19.395450] hardirqs last enabled at (183): [\u0026lt;ffffffc0800b9278\u0026gt;] finish_task_switch.isra.0+0xa8/0x2d4\n[ 19.405140] hardirqs last disabled at (182): [\u0026lt;ffffffc081ad3754\u0026gt;] __schedule+0x714/0xd04\n[ 19.413612] softirqs last enabled at (114): [\u0026lt;ffffffc080133de8\u0026gt;] srcu_invoke_callbacks+0x158/0x23c\n[ 19.423128] softirqs last disabled at (110): [\u0026lt;ffffffc080133de8\u0026gt;] srcu_invoke_callbacks+0x158/0x23c\n[ 19.432614] ---[ end trace 0000000000000000 ]---\r\n\r\n(cherry picked from commit 61ba791c4a7a09a370c45b70a81b8c7d4cf6b2ae)(CVE-2024-38664)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\ndma-buf/sw-sync: don\u0026apos;t enable IRQ from sync_print_obj()\r\n\r\nSince commit a6aa8fca4d79 (\u0026quot;dma-buf/sw-sync: Reduce irqsave/irqrestore from\nknown context\u0026quot;) by error replaced spin_unlock_irqrestore() with\nspin_unlock_irq() for both sync_debugfs_show() and sync_print_obj() despite\nsync_print_obj() is called from sync_debugfs_show(), lockdep complains\ninconsistent lock state warning.\r\n\r\nUse plain spin_{lock,unlock}() for sync_print_obj(), for\nsync_debugfs_show() is already using spin_{lock,unlock}_irq().(CVE-2024-38780)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nbonding: fix oops during rmmod\r\n\r\n\u0026quot;rmmod bonding\u0026quot; causes an oops ever since commit cc317ea3d927 (\u0026quot;bonding:\nremove redundant NULL check in debugfs function\u0026quot;). Here are the relevant\nfunctions being called:\r\n\r\nbonding_exit()\n bond_destroy_debugfs()\n debugfs_remove_recursive(bonding_debug_root);\n bonding_debug_root = NULL; \u0026lt;--------- SET TO NULL HERE\n bond_netlink_fini()\n rtnl_link_unregister()\n __rtnl_link_unregister()\n unregister_netdevice_many_notify()\n bond_uninit()\n bond_debug_unregister()\n (commit removed check for bonding_debug_root == NULL)\n debugfs_remove()\n simple_recursive_removal()\n down_write() -\u0026gt; OOPS\r\n\r\nHowever, reverting the bad commit does not solve the problem completely\nbecause the original code contains a race that could cause the same\noops, although it was much less likely to be triggered unintentionally:\r\n\r\nCPU1\n rmmod bonding\n bonding_exit()\n bond_destroy_debugfs()\n debugfs_remove_recursive(bonding_debug_root);\r\n\r\nCPU2\n echo -bond0 \u0026gt; /sys/class/net/bonding_masters\n bond_uninit()\n bond_debug_unregister()\n if (!bonding_debug_root)\r\n\r\nCPU1\n bonding_debug_root = NULL;\r\n\r\nSo do NOT revert the bad commit (since the removed checks were racy\nanyway), and instead change the order of actions taken during module\nremoval. The same oops can also happen if there is an error during\nmodule init, so apply the same fix there.(CVE-2024-39296)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nnet/9p: fix uninit-value in p9_client_rpc()\r\n\r\nSyzbot with the help of KMSAN reported the following error:\r\n\r\nBUG: KMSAN: uninit-value in trace_9p_client_res include/trace/events/9p.h:146 [inline]\nBUG: KMSAN: uninit-value in p9_client_rpc+0x1314/0x1340 net/9p/client.c:754\n trace_9p_client_res include/trace/events/9p.h:146 [inline]\n p9_client_rpc+0x1314/0x1340 net/9p/client.c:754\n p9_client_create+0x1551/0x1ff0 net/9p/client.c:1031\n v9fs_session_init+0x1b9/0x28e0 fs/9p/v9fs.c:410\n v9fs_mount+0xe2/0x12b0 fs/9p/vfs_super.c:122\n legacy_get_tree+0x114/0x290 fs/fs_context.c:662\n vfs_get_tree+0xa7/0x570 fs/super.c:1797\n do_new_mount+0x71f/0x15e0 fs/namespace.c:3352\n path_mount+0x742/0x1f20 fs/namespace.c:3679\n do_mount fs/namespace.c:3692 [inline]\n __do_sys_mount fs/namespace.c:3898 [inline]\n __se_sys_mount+0x725/0x810 fs/namespace.c:3875\n __x64_sys_mount+0xe4/0x150 fs/namespace.c:3875\n do_syscall_64+0xd5/0x1f0\n entry_SYSCALL_64_after_hwframe+0x6d/0x75\r\n\r\nUninit was created at:\n __alloc_pages+0x9d6/0xe70 mm/page_alloc.c:4598\n __alloc_pages_node include/linux/gfp.h:238 [inline]\n alloc_pages_node include/linux/gfp.h:261 [inline]\n alloc_slab_page mm/slub.c:2175 [inline]\n allocate_slab mm/slub.c:2338 [inline]\n new_slab+0x2de/0x1400 mm/slub.c:2391\n ___slab_alloc+0x1184/0x33d0 mm/slub.c:3525\n __slab_alloc mm/slub.c:3610 [inline]\n __slab_alloc_node mm/slub.c:3663 [inline]\n slab_alloc_node mm/slub.c:3835 [inline]\n kmem_cache_alloc+0x6d3/0xbe0 mm/slub.c:3852\n p9_tag_alloc net/9p/client.c:278 [inline]\n p9_client_prepare_req+0x20a/0x1770 net/9p/client.c:641\n p9_client_rpc+0x27e/0x1340 net/9p/client.c:688\n p9_client_create+0x1551/0x1ff0 net/9p/client.c:1031\n v9fs_session_init+0x1b9/0x28e0 fs/9p/v9fs.c:410\n v9fs_mount+0xe2/0x12b0 fs/9p/vfs_super.c:122\n legacy_get_tree+0x114/0x290 fs/fs_context.c:662\n vfs_get_tree+0xa7/0x570 fs/super.c:1797\n do_new_mount+0x71f/0x15e0 fs/namespace.c:3352\n path_mount+0x742/0x1f20 fs/namespace.c:3679\n do_mount fs/namespace.c:3692 [inline]\n __do_sys_mount fs/namespace.c:3898 [inline]\n __se_sys_mount+0x725/0x810 fs/namespace.c:3875\n __x64_sys_mount+0xe4/0x150 fs/namespace.c:3875\n do_syscall_64+0xd5/0x1f0\n entry_SYSCALL_64_after_hwframe+0x6d/0x75\r\n\r\nIf p9_check_errors() fails early in p9_client_rpc(), req-\u0026gt;rc.tag\nwill not be properly initialized. However, trace_9p_client_res()\nends up trying to print it out anyway before p9_client_rpc()\nfinishes.\r\n\r\nFix this issue by assigning default values to p9_fcall fields\nsuch as \u0026apos;tag\u0026apos; and (just in case KMSAN unearths something new) \u0026apos;id\u0026apos;\nduring the tag allocation stage.(CVE-2024-39301)\r\n\r\nRejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.(CVE-2024-39362)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nio_uring: check for non-NULL file pointer in io_file_can_poll()\r\n\r\nIn earlier kernels, it was possible to trigger a NULL pointer\ndereference off the forced async preparation path, if no file had\nbeen assigned. The trace leading to that looks as follows:\r\n\r\nBUG: kernel NULL pointer dereference, address: 00000000000000b0\nPGD 0 P4D 0\nOops: 0000 [#1] PREEMPT SMP\nCPU: 67 PID: 1633 Comm: buf-ring-invali Not tainted 6.8.0-rc3+ #1\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS unknown 2/2/2022\nRIP: 0010:io_buffer_select+0xc3/0x210\nCode: 00 00 48 39 d1 0f 82 ae 00 00 00 48 81 4b 48 00 00 01 00 48 89 73 70 0f b7 50 0c 66 89 53 42 85 ed 0f 85 d2 00 00 00 48 8b 13 \u0026lt;48\u0026gt; 8b 92 b0 00 00 00 48 83 7a 40 00 0f 84 21 01 00 00 4c 8b 20 5b\nRSP: 0018:ffffb7bec38c7d88 EFLAGS: 00010246\nRAX: ffff97af2be61000 RBX: ffff97af234f1700 RCX: 0000000000000040\nRDX: 0000000000000000 RSI: ffff97aecfb04820 RDI: ffff97af234f1700\nRBP: 0000000000000000 R08: 0000000000200030 R09: 0000000000000020\nR10: ffffb7bec38c7dc8 R11: 000000000000c000 R12: ffffb7bec38c7db8\nR13: ffff97aecfb05800 R14: ffff97aecfb05800 R15: ffff97af2be5e000\nFS: 00007f852f74b740(0000) GS:ffff97b1eeec0000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00000000000000b0 CR3: 000000016deab005 CR4: 0000000000370ef0\nCall Trace:\n \u0026lt;TASK\u0026gt;\n ? __die+0x1f/0x60\n ? page_fault_oops+0x14d/0x420\n ? do_user_addr_fault+0x61/0x6a0\n ? exc_page_fault+0x6c/0x150\n ? asm_exc_page_fault+0x22/0x30\n ? io_buffer_select+0xc3/0x210\n __io_import_iovec+0xb5/0x120\n io_readv_prep_async+0x36/0x70\n io_queue_sqe_fallback+0x20/0x260\n io_submit_sqes+0x314/0x630\n __do_sys_io_uring_enter+0x339/0xbc0\n ? __do_sys_io_uring_register+0x11b/0xc50\n ? vm_mmap_pgoff+0xce/0x160\n do_syscall_64+0x5f/0x180\n entry_SYSCALL_64_after_hwframe+0x46/0x4e\nRIP: 0033:0x55e0a110a67e\nCode: ba cc 00 00 00 45 31 c0 44 0f b6 92 d0 00 00 00 31 d2 41 b9 08 00 00 00 41 83 e2 01 41 c1 e2 04 41 09 c2 b8 aa 01 00 00 0f 05 \u0026lt;c3\u0026gt; 90 89 30 eb a9 0f 1f 40 00 48 8b 42 20 8b 00 a8 06 75 af 85 f6\r\n\r\nbecause the request is marked forced ASYNC and has a bad file fd, and\nhence takes the forced async prep path.\r\n\r\nCurrent kernels with the request async prep cleaned up can no longer hit\nthis issue, but for ease of backporting, let\u0026apos;s add this safety check in\nhere too as it really doesn\u0026apos;t hurt. For both cases, this will inevitably\nend with a CQE posted with -EBADF.(CVE-2024-39371)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nclk: bcm: rpi: Assign -\u0026gt;num before accessing -\u0026gt;hws\r\n\r\nCommit f316cdff8d67 (\u0026quot;clk: Annotate struct clk_hw_onecell_data with\n__counted_by\u0026quot;) annotated the hws member of \u0026apos;struct clk_hw_onecell_data\u0026apos;\nwith __counted_by, which informs the bounds sanitizer about the number\nof elements in hws, so that it can warn when hws is accessed out of\nbounds. As noted in that change, the __counted_by member must be\ninitialized with the number of elements before the first array access\nhappens, otherwise there will be a warning from each access prior to the\ninitialization because the number of elements is zero. This occurs in\nraspberrypi_discover_clocks() due to -\u0026gt;num being assigned after -\u0026gt;hws\nhas been accessed:\r\n\r\n UBSAN: array-index-out-of-bounds in drivers/clk/bcm/clk-raspberrypi.c:374:4\n index 3 is out of range for type \u0026apos;struct clk_hw *[] __counted_by(num)\u0026apos; (aka \u0026apos;struct clk_hw *[]\u0026apos;)\r\n\r\nMove the -\u0026gt;num initialization to before the first access of -\u0026gt;hws, which\nclears up the warning.(CVE-2024-39461)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nthermal/drivers/qcom/lmh: Check for SCM availability at probe\r\n\r\nUp until now, the necessary scm availability check has not been\nperformed, leading to possible null pointer dereferences (which did\nhappen for me on RB1).\r\n\r\nFix that.(CVE-2024-39466)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nf2fs: fix to do sanity check on i_xattr_nid in sanity_check_inode()\r\n\r\nsyzbot reports a kernel bug as below:\r\n\r\nF2FS-fs (loop0): Mounted with checkpoint version = 48b305e4\n==================================================================\nBUG: KASAN: slab-out-of-bounds in f2fs_test_bit fs/f2fs/f2fs.h:2933 [inline]\nBUG: KASAN: slab-out-of-bounds in current_nat_addr fs/f2fs/node.h:213 [inline]\nBUG: KASAN: slab-out-of-bounds in f2fs_get_node_info+0xece/0x1200 fs/f2fs/node.c:600\nRead of size 1 at addr ffff88807a58c76c by task syz-executor280/5076\r\n\r\nCPU: 1 PID: 5076 Comm: syz-executor280 Not tainted 6.9.0-rc5-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024\nCall Trace:\n \u0026lt;TASK\u0026gt;\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114\n print_address_description mm/kasan/report.c:377 [inline]\n print_report+0x169/0x550 mm/kasan/report.c:488\n kasan_report+0x143/0x180 mm/kasan/report.c:601\n f2fs_test_bit fs/f2fs/f2fs.h:2933 [inline]\n current_nat_addr fs/f2fs/node.h:213 [inline]\n f2fs_get_node_info+0xece/0x1200 fs/f2fs/node.c:600\n f2fs_xattr_fiemap fs/f2fs/data.c:1848 [inline]\n f2fs_fiemap+0x55d/0x1ee0 fs/f2fs/data.c:1925\n ioctl_fiemap fs/ioctl.c:220 [inline]\n do_vfs_ioctl+0x1c07/0x2e50 fs/ioctl.c:838\n __do_sys_ioctl fs/ioctl.c:902 [inline]\n __se_sys_ioctl+0x81/0x170 fs/ioctl.c:890\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\r\n\r\nThe root cause is we missed to do sanity check on i_xattr_nid during\nf2fs_iget(), so that in fiemap() path, current_nat_addr() will access\nnat_bitmap w/ offset from invalid i_xattr_nid, result in triggering\nkasan bug report, fix it.(CVE-2024-39467)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\nsmb: client: fix deadlock in smb2_find_smb_tcon()\r\n\r\nUnlock cifs_tcp_ses_lock before calling cifs_put_smb_ses() to avoid such\ndeadlock.(CVE-2024-39468)\r\n\r\nIn the Linux kernel, the following vulnerability has been resolved:\r\n\r\neventfs: Fix a possible null pointer dereference in eventfs_find_events()\r\n\r\nIn function eventfs_find_events,there is a potential null pointer\nthat may be caused by calling update_events_attr which will perform\nsome operations on the members of the ei struct when ei is NULL.\r\n\r\nHence,When ei-\u0026gt;is_freed is set,return NULL directly.(CVE-2024-39470)",
"id": "OESA-2024-1836",
"modified": "2026-08-06T11:07:18Z",
"published": "2024-07-12T11:07:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1836"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48772"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-31076"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36489"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36949"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36952"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36962"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36965"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-37353"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-37354"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-37356"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38551"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38552"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38554"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38555"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38562"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38564"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38577"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38579"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38582"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38588"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38598"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38599"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38602"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38604"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38610"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38622"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38623"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38624"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38625"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38628"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38629"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38630"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38634"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38637"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38662"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38664"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38780"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-39296"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-39301"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-39362"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-39371"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-39461"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-39466"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-39467"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-39468"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-39470"
}
],
"schema_version": "1.7.2",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "kernel security update",
"upstream": [
"CVE-2022-48772",
"CVE-2024-31076",
"CVE-2024-36489",
"CVE-2024-36949",
"CVE-2024-36952",
"CVE-2024-36962",
"CVE-2024-36965",
"CVE-2024-37353",
"CVE-2024-37354",
"CVE-2024-37356",
"CVE-2024-38551",
"CVE-2024-38552",
"CVE-2024-38554",
"CVE-2024-38555",
"CVE-2024-38562",
"CVE-2024-38564",
"CVE-2024-38577",
"CVE-2024-38579",
"CVE-2024-38582",
"CVE-2024-38588",
"CVE-2024-38598",
"CVE-2024-38599",
"CVE-2024-38602",
"CVE-2024-38604",
"CVE-2024-38610",
"CVE-2024-38622",
"CVE-2024-38623",
"CVE-2024-38624",
"CVE-2024-38625",
"CVE-2024-38628",
"CVE-2024-38629",
"CVE-2024-38630",
"CVE-2024-38634",
"CVE-2024-38637",
"CVE-2024-38662",
"CVE-2024-38664",
"CVE-2024-38780",
"CVE-2024-39296",
"CVE-2024-39301",
"CVE-2024-39362",
"CVE-2024-39371",
"CVE-2024-39461",
"CVE-2024-39466",
"CVE-2024-39467",
"CVE-2024-39468",
"CVE-2024-39470"
]
}
SUSE-SU-2024:2135-1
Vulnerability from csaf_suse - Published: 2024-06-21 11:03 - Updated: 2026-09-20 15:54SUSE-SU-2024:2203-1
Vulnerability from csaf_suse - Published: 2024-06-25 13:04 - Updated: 2026-09-20 15:56SUSE-SU-2024:2360-1
Vulnerability from csaf_suse - Published: 2024-07-09 14:01 - Updated: 2026-09-20 15:57SUSE-SU-2024:2372-1
Vulnerability from csaf_suse - Published: 2024-07-09 15:03 - Updated: 2026-09-20 15:58Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.