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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracefs: Use generic inode RCU for synchronizing freeing\n\nWith structure layout randomization enabled for \u0027struct inode\u0027 we need to\navoid overlapping any of the RCU-used / initialized-only-once members,\ne.g. i_lru or i_sb_list to not corrupt related list traversals when making\nuse of the rcu_head.\n\nFor an unlucky structure layout of \u0027struct inode\u0027 we may end up with the\nfollowing splat when running the ftrace selftests:\n\n[\u003c...\u003e] list_del corruption, ffff888103ee2cb0-\u003enext (tracefs_inode_cache+0x0/0x4e0 [slab object]) is NULL (prev is tracefs_inode_cache+0x78/0x4e0 [slab object])\n[\u003c...\u003e] ------------[ cut here ]------------\n[\u003c...\u003e] kernel BUG at lib/list_debug.c:54!\n[\u003c...\u003e] invalid opcode: 0000 [#1] PREEMPT SMP KASAN\n[\u003c...\u003e] CPU: 3 PID: 2550 Comm: mount Tainted: G                 N  6.8.12-grsec+ #122 ed2f536ca62f28b087b90e3cc906a8d25b3ddc65\n[\u003c...\u003e] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014\n[\u003c...\u003e] RIP: 0010:[\u003cffffffff84656018\u003e] __list_del_entry_valid_or_report+0x138/0x3e0\n[\u003c...\u003e] Code: 48 b8 99 fb 65 f2 ff ff ff ff e9 03 5c d9 fc cc 48 b8 99 fb 65 f2 ff ff ff ff e9 33 5a d9 fc cc 48 b8 99 fb 65 f2 ff ff ff ff \u003c0f\u003e 0b 4c 89 e9 48 89 ea 48 89 ee 48 c7 c7 60 8f dd 89 31 c0 e8 2f\n[\u003c...\u003e] RSP: 0018:fffffe80416afaf0 EFLAGS: 00010283\n[\u003c...\u003e] RAX: 0000000000000098 RBX: ffff888103ee2cb0 RCX: 0000000000000000\n[\u003c...\u003e] RDX: ffffffff84655fe8 RSI: ffffffff89dd8b60 RDI: 0000000000000001\n[\u003c...\u003e] RBP: ffff888103ee2cb0 R08: 0000000000000001 R09: fffffbd0082d5f25\n[\u003c...\u003e] R10: fffffe80416af92f R11: 0000000000000001 R12: fdf99c16731d9b6d\n[\u003c...\u003e] R13: 0000000000000000 R14: ffff88819ad4b8b8 R15: 0000000000000000\n[\u003c...\u003e] RBX: tracefs_inode_cache+0x0/0x4e0 [slab object]\n[\u003c...\u003e] RDX: __list_del_entry_valid_or_report+0x108/0x3e0\n[\u003c...\u003e] RSI: __func__.47+0x4340/0x4400\n[\u003c...\u003e] RBP: tracefs_inode_cache+0x0/0x4e0 [slab object]\n[\u003c...\u003e] RSP: process kstack fffffe80416afaf0+0x7af0/0x8000 [mount 2550 2550]\n[\u003c...\u003e] R09: kasan shadow of process kstack fffffe80416af928+0x7928/0x8000 [mount 2550 2550]\n[\u003c...\u003e] R10: process kstack fffffe80416af92f+0x792f/0x8000 [mount 2550 2550]\n[\u003c...\u003e] R14: tracefs_inode_cache+0x78/0x4e0 [slab object]\n[\u003c...\u003e] FS:  00006dcb380c1840(0000) GS:ffff8881e0600000(0000) knlGS:0000000000000000\n[\u003c...\u003e] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[\u003c...\u003e] CR2: 000076ab72b30e84 CR3: 000000000b088004 CR4: 0000000000360ef0 shadow CR4: 0000000000360ef0\n[\u003c...\u003e] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[\u003c...\u003e] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[\u003c...\u003e] ASID: 0003\n[\u003c...\u003e] Stack:\n[\u003c...\u003e]  ffffffff818a2315 00000000f5c856ee ffffffff896f1840 ffff888103ee2cb0\n[\u003c...\u003e]  ffff88812b6b9750 0000000079d714b6 fffffbfff1e9280b ffffffff8f49405f\n[\u003c...\u003e]  0000000000000001 0000000000000000 ffff888104457280 ffffffff8248b392\n[\u003c...\u003e] Call Trace:\n[\u003c...\u003e]  \u003cTASK\u003e\n[\u003c...\u003e]  [\u003cffffffff818a2315\u003e] ? lock_release+0x175/0x380 fffffe80416afaf0\n[\u003c...\u003e]  [\u003cffffffff8248b392\u003e] list_lru_del+0x152/0x740 fffffe80416afb48\n[\u003c...\u003e]  [\u003cffffffff8248ba93\u003e] list_lru_del_obj+0x113/0x280 fffffe80416afb88\n[\u003c...\u003e]  [\u003cffffffff8940fd19\u003e] ? _atomic_dec_and_lock+0x119/0x200 fffffe80416afb90\n[\u003c...\u003e]  [\u003cffffffff8295b244\u003e] iput_final+0x1c4/0x9a0 fffffe80416afbb8\n[\u003c...\u003e]  [\u003cffffffff8293a52b\u003e] dentry_unlink_inode+0x44b/0xaa0 fffffe80416afbf8\n[\u003c...\u003e]  [\u003cffffffff8293fefc\u003e] __dentry_kill+0x23c/0xf00 fffffe80416afc40\n[\u003c...\u003e]  [\u003cffffffff8953a85f\u003e] ? __this_cpu_preempt_check+0x1f/0xa0 fffffe80416afc48\n[\u003c...\u003e]  [\u003cffffffff82949ce5\u003e] ? shrink_dentry_list+0x1c5/0x760 fffffe80416afc70\n[\u003c...\u003e]  [\u003cffffffff82949b71\u003e] ? shrink_dentry_list+0x51/0x760 fffffe80416afc78\n[\u003c...\u003e]  [\u003cffffffff82949da8\u003e] shrink_dentry_list+0x288/0x760 fffffe80416afc80\n[\u003c...\u003e]  [\u003cffffffff8294ae75\u003e] shrink_dcache_sb+0x155/0x420 fffffe80416afcc8\n[\u003c...\u003e]  [\u003cffffffff8953a7c3\u003e] ? debug_smp_processor_id+0x23/0xa0 fffffe80416afce0\n[\u003c...\u003e]  [\u003cffffffff8294ad20\u003e] ? do_one_tre\n---truncated---"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: s390: fix validity interception issue when gisa is switched off\n\nWe might run into a SIE validity if gisa has been disabled either via using\nkernel parameter \"kvm.use_gisa=0\" or by setting the related sysfs\nattribute to N (echo N \u003e/sys/module/kvm/parameters/use_gisa).\n\nThe validity is caused by an invalid value in the SIE control block\u0027s\ngisa designation. That happens because we pass the uninitialized gisa\norigin to virt_to_phys() before writing it to the gisa designation.\n\nTo fix this we return 0 in kvm_s390_get_gisa_desc() if the origin is 0.\nkvm_s390_get_gisa_desc() is used to determine which gisa designation to\nset in the SIE control block. A value of 0 in the gisa designation disables\ngisa usage.\n\nThe issue surfaces in the host kernel with the following kernel message as\nsoon a new kvm guest start is attemted.\n\nkvm: unhandled validity intercept 0x1011\nWARNING: CPU: 0 PID: 781237 at arch/s390/kvm/intercept.c:101 kvm_handle_sie_intercept+0x42e/0x4d0 [kvm]\nModules linked in: vhost_net tap tun xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT xt_tcpudp nft_compat x_tables nf_nat_tftp nf_conntrack_tftp vfio_pci_core irqbypass vhost_vsock vmw_vsock_virtio_transport_common vsock vhost vhost_iotlb kvm nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables sunrpc mlx5_ib ib_uverbs ib_core mlx5_core uvdevice s390_trng eadm_sch vfio_ccw zcrypt_cex4 mdev vfio_iommu_type1 vfio sch_fq_codel drm i2c_core loop drm_panel_orientation_quirks configfs nfnetlink lcs ctcm fsm dm_service_time ghash_s390 prng chacha_s390 libchacha aes_s390 des_s390 libdes sha3_512_s390 sha3_256_s390 sha512_s390 sha256_s390 sha1_s390 sha_common dm_mirror dm_region_hash dm_log zfcp scsi_transport_fc scsi_dh_rdac scsi_dh_emc scsi_dh_alua pkey zcrypt dm_multipath rng_core autofs4 [last unloaded: vfio_pci]\nCPU: 0 PID: 781237 Comm: CPU 0/KVM Not tainted 6.10.0-08682-gcad9f11498ea #6\nHardware name: IBM 3931 A01 701 (LPAR)\nKrnl PSW : 0704c00180000000 000003d93deb0122 (kvm_handle_sie_intercept+0x432/0x4d0 [kvm])\n           R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:0 PM:0 RI:0 EA:3\nKrnl GPRS: 000003d900000027 000003d900000023 0000000000000028 000002cd00000000\n           000002d063a00900 00000359c6daf708 00000000000bebb5 0000000000001eff\n           000002cfd82e9000 000002cfd80bc000 0000000000001011 000003d93deda412\n           000003ff8962df98 000003d93de77ce0 000003d93deb011e 00000359c6daf960\nKrnl Code: 000003d93deb0112: c020fffe7259\tlarl\t%r2,000003d93de7e5c4\n           000003d93deb0118: c0e53fa8beac\tbrasl\t%r14,000003d9bd3c7e70\n          #000003d93deb011e: af000000\t\tmc\t0,0\n          \u003e000003d93deb0122: a728ffea\t\tlhi\t%r2,-22\n           000003d93deb0126: a7f4fe24\t\tbrc\t15,000003d93deafd6e\n           000003d93deb012a: 9101f0b0\t\ttm\t176(%r15),1\n           000003d93deb012e: a774fe48\t\tbrc\t7,000003d93deafdbe\n           000003d93deb0132: 40a0f0ae\t\tsth\t%r10,174(%r15)\nCall Trace:\n [\u003c000003d93deb0122\u003e] kvm_handle_sie_intercept+0x432/0x4d0 [kvm]\n([\u003c000003d93deb011e\u003e] kvm_handle_sie_intercept+0x42e/0x4d0 [kvm])\n [\u003c000003d93deacc10\u003e] vcpu_post_run+0x1d0/0x3b0 [kvm]\n [\u003c000003d93deaceda\u003e] __vcpu_run+0xea/0x2d0 [kvm]\n [\u003c000003d93dead9da\u003e] kvm_arch_vcpu_ioctl_run+0x16a/0x430 [kvm]\n [\u003c000003d93de93ee0\u003e] kvm_vcpu_ioctl+0x190/0x7c0 [kvm]\n [\u003c000003d9bd728b4e\u003e] vfs_ioctl+0x2e/0x70\n [\u003c000003d9bd72a092\u003e] __s390x_sys_ioctl+0xc2/0xd0\n [\u003c000003d9be0e9222\u003e] __do_syscall+0x1f2/0x2e0\n [\u003c000003d9be0f9a90\u003e] system_call+0x70/0x98\nLast Breaking-Event-Address:\n [\u003c000003d9bd3c7f58\u003e] __warn_printk+0xe8/0xf0"
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncgroup/cpuset: fix panic caused by partcmd_update\n\nWe find a bug as below:\nBUG: unable to handle page fault for address: 00000003\nPGD 0 P4D 0\nOops: 0000 [#1] PREEMPT SMP NOPTI\nCPU: 3 PID: 358 Comm: bash Tainted: G        W I        6.6.0-10893-g60d6\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/4\nRIP: 0010:partition_sched_domains_locked+0x483/0x600\nCode: 01 48 85 d2 74 0d 48 83 05 29 3f f8 03 01 f3 48 0f bc c2 89 c0 48 9\nRSP: 0018:ffffc90000fdbc58 EFLAGS: 00000202\nRAX: 0000000100000003 RBX: ffff888100b3dfa0 RCX: 0000000000000000\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000002fe80\nRBP: ffff888100b3dfb0 R08: 0000000000000001 R09: 0000000000000000\nR10: ffffc90000fdbcb0 R11: 0000000000000004 R12: 0000000000000002\nR13: ffff888100a92b48 R14: 0000000000000000 R15: 0000000000000000\nFS:  00007f44a5425740(0000) GS:ffff888237d80000(0000) knlGS:0000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000000100030973 CR3: 000000010722c000 CR4: 00000000000006e0\nCall Trace:\n \u003cTASK\u003e\n ? show_regs+0x8c/0xa0\n ? __die_body+0x23/0xa0\n ? __die+0x3a/0x50\n ? page_fault_oops+0x1d2/0x5c0\n ? partition_sched_domains_locked+0x483/0x600\n ? search_module_extables+0x2a/0xb0\n ? search_exception_tables+0x67/0x90\n ? kernelmode_fixup_or_oops+0x144/0x1b0\n ? __bad_area_nosemaphore+0x211/0x360\n ? up_read+0x3b/0x50\n ? bad_area_nosemaphore+0x1a/0x30\n ? exc_page_fault+0x890/0xd90\n ? __lock_acquire.constprop.0+0x24f/0x8d0\n ? __lock_acquire.constprop.0+0x24f/0x8d0\n ? asm_exc_page_fault+0x26/0x30\n ? partition_sched_domains_locked+0x483/0x600\n ? partition_sched_domains_locked+0xf0/0x600\n rebuild_sched_domains_locked+0x806/0xdc0\n update_partition_sd_lb+0x118/0x130\n cpuset_write_resmask+0xffc/0x1420\n cgroup_file_write+0xb2/0x290\n kernfs_fop_write_iter+0x194/0x290\n new_sync_write+0xeb/0x160\n vfs_write+0x16f/0x1d0\n ksys_write+0x81/0x180\n __x64_sys_write+0x21/0x30\n x64_sys_call+0x2f25/0x4630\n do_syscall_64+0x44/0xb0\n entry_SYSCALL_64_after_hwframe+0x78/0xe2\nRIP: 0033:0x7f44a553c887\n\nIt can be reproduced with cammands:\ncd /sys/fs/cgroup/\nmkdir test\ncd test/\necho +cpuset \u003e ../cgroup.subtree_control\necho root \u003e cpuset.cpus.partition\ncat /sys/fs/cgroup/cpuset.cpus.effective\n0-3\necho 0-3 \u003e cpuset.cpus // taking away all cpus from root\n\nThis issue is caused by the incorrect rebuilding of scheduling domains.\nIn this scenario, test/cpuset.cpus.partition should be an invalid root\nand should not trigger the rebuilding of scheduling domains. When calling\nupdate_parent_effective_cpumask with partcmd_update, if newmask is not\nnull, it should recheck newmask whether there are cpus is available\nfor parect/cs that has tasks."
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          "programFiles": [
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          "vendor": "Linux",
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              "status": "affected",
              "version": "6.8"
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            {
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/v3d: Fix out-of-bounds read in `v3d_csd_job_run()`\n\nWhen enabling UBSAN on Raspberry Pi 5, we get the following warning:\n\n[  387.894977] UBSAN: array-index-out-of-bounds in drivers/gpu/drm/v3d/v3d_sched.c:320:3\n[  387.903868] index 7 is out of range for type \u0027__u32 [7]\u0027\n[  387.909692] CPU: 0 PID: 1207 Comm: kworker/u16:2 Tainted: G        WC         6.10.3-v8-16k-numa #151\n[  387.919166] Hardware name: Raspberry Pi 5 Model B Rev 1.0 (DT)\n[  387.925961] Workqueue: v3d_csd drm_sched_run_job_work [gpu_sched]\n[  387.932525] Call trace:\n[  387.935296]  dump_backtrace+0x170/0x1b8\n[  387.939403]  show_stack+0x20/0x38\n[  387.942907]  dump_stack_lvl+0x90/0xd0\n[  387.946785]  dump_stack+0x18/0x28\n[  387.950301]  __ubsan_handle_out_of_bounds+0x98/0xd0\n[  387.955383]  v3d_csd_job_run+0x3a8/0x438 [v3d]\n[  387.960707]  drm_sched_run_job_work+0x520/0x6d0 [gpu_sched]\n[  387.966862]  process_one_work+0x62c/0xb48\n[  387.971296]  worker_thread+0x468/0x5b0\n[  387.975317]  kthread+0x1c4/0x1e0\n[  387.978818]  ret_from_fork+0x10/0x20\n[  387.983014] ---[ end trace ]---\n\nThis happens because the UAPI provides only seven configuration\nregisters and we are reading the eighth position of this u32 array.\n\nTherefore, fix the out-of-bounds read in `v3d_csd_job_run()` by\naccessing only seven positions on the \u0027__u32 [7]\u0027 array. The eighth\nregister exists indeed on V3D 7.1, but it isn\u0027t currently used. That\nbeing so, let\u0027s guarantee that it remains unused and add a note that it\ncould be set in a future patch."
        }
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/netfs/fscache_cookie: add missing \"n_accesses\" check\n\nThis fixes a NULL pointer dereference bug due to a data race which\nlooks like this:\n\n  BUG: kernel NULL pointer dereference, address: 0000000000000008\n  #PF: supervisor read access in kernel mode\n  #PF: error_code(0x0000) - not-present page\n  PGD 0 P4D 0\n  Oops: 0000 [#1] SMP PTI\n  CPU: 33 PID: 16573 Comm: kworker/u97:799 Not tainted 6.8.7-cm4all1-hp+ #43\n  Hardware name: HP ProLiant DL380 Gen9/ProLiant DL380 Gen9, BIOS P89 10/17/2018\n  Workqueue: events_unbound netfs_rreq_write_to_cache_work\n  RIP: 0010:cachefiles_prepare_write+0x30/0xa0\n  Code: 57 41 56 45 89 ce 41 55 49 89 cd 41 54 49 89 d4 55 53 48 89 fb 48 83 ec 08 48 8b 47 08 48 83 7f 10 00 48 89 34 24 48 8b 68 20 \u003c48\u003e 8b 45 08 4c 8b 38 74 45 49 8b 7f 50 e8 4e a9 b0 ff 48 8b 73 10\n  RSP: 0018:ffffb4e78113bde0 EFLAGS: 00010286\n  RAX: ffff976126be6d10 RBX: ffff97615cdb8438 RCX: 0000000000020000\n  RDX: ffff97605e6c4c68 RSI: ffff97605e6c4c60 RDI: ffff97615cdb8438\n  RBP: 0000000000000000 R08: 0000000000278333 R09: 0000000000000001\n  R10: ffff97605e6c4600 R11: 0000000000000001 R12: ffff97605e6c4c68\n  R13: 0000000000020000 R14: 0000000000000001 R15: ffff976064fe2c00\n  FS:  0000000000000000(0000) GS:ffff9776dfd40000(0000) knlGS:0000000000000000\n  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n  CR2: 0000000000000008 CR3: 000000005942c002 CR4: 00000000001706f0\n  Call Trace:\n   \u003cTASK\u003e\n   ? __die+0x1f/0x70\n   ? page_fault_oops+0x15d/0x440\n   ? search_module_extables+0xe/0x40\n   ? fixup_exception+0x22/0x2f0\n   ? exc_page_fault+0x5f/0x100\n   ? asm_exc_page_fault+0x22/0x30\n   ? cachefiles_prepare_write+0x30/0xa0\n   netfs_rreq_write_to_cache_work+0x135/0x2e0\n   process_one_work+0x137/0x2c0\n   worker_thread+0x2e9/0x400\n   ? __pfx_worker_thread+0x10/0x10\n   kthread+0xcc/0x100\n   ? __pfx_kthread+0x10/0x10\n   ret_from_fork+0x30/0x50\n   ? __pfx_kthread+0x10/0x10\n   ret_from_fork_asm+0x1b/0x30\n   \u003c/TASK\u003e\n  Modules linked in:\n  CR2: 0000000000000008\n  ---[ end trace 0000000000000000 ]---\n\nThis happened because fscache_cookie_state_machine() was slow and was\nstill running while another process invoked fscache_unuse_cookie();\nthis led to a fscache_cookie_lru_do_one() call, setting the\nFSCACHE_COOKIE_DO_LRU_DISCARD flag, which was picked up by\nfscache_cookie_state_machine(), withdrawing the cookie via\ncachefiles_withdraw_cookie(), clearing cookie-\u003ecache_priv.\n\nAt the same time, yet another process invoked\ncachefiles_prepare_write(), which found a NULL pointer in this code\nline:\n\n  struct cachefiles_object *object = cachefiles_cres_object(cres);\n\nThe next line crashes, obviously:\n\n  struct cachefiles_cache *cache = object-\u003evolume-\u003ecache;\n\nDuring cachefiles_prepare_write(), the \"n_accesses\" counter is\nnon-zero (via fscache_begin_operation()).  The cookie must not be\nwithdrawn until it drops to zero.\n\nThe counter is checked by fscache_cookie_state_machine() before\nswitching to FSCACHE_COOKIE_STATE_RELINQUISHING and\nFSCACHE_COOKIE_STATE_WITHDRAWING (in \"case\nFSCACHE_COOKIE_STATE_FAILED\"), but not for\nFSCACHE_COOKIE_STATE_LRU_DISCARDING (\"case\nFSCACHE_COOKIE_STATE_ACTIVE\").\n\nThis patch adds the missing check.  With a non-zero access counter,\nthe function returns and the next fscache_end_cookie_access() call\nwill queue another fscache_cookie_state_machine() call to handle the\nstill-pending FSCACHE_COOKIE_DO_LRU_DISCARD."
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvfs: Don\u0027t evict inode under the inode lru traversing context\n\nThe inode reclaiming process(See function prune_icache_sb) collects all\nreclaimable inodes and mark them with I_FREEING flag at first, at that\ntime, other processes will be stuck if they try getting these inodes\n(See function find_inode_fast), then the reclaiming process destroy the\ninodes by function dispose_list(). Some filesystems(eg. ext4 with\nea_inode feature, ubifs with xattr) may do inode lookup in the inode\nevicting callback function, if the inode lookup is operated under the\ninode lru traversing context, deadlock problems may happen.\n\nCase 1: In function ext4_evict_inode(), the ea inode lookup could happen\n        if ea_inode feature is enabled, the lookup process will be stuck\n\tunder the evicting context like this:\n\n 1. File A has inode i_reg and an ea inode i_ea\n 2. getfattr(A, xattr_buf) // i_ea is added into lru // lru-\u003ei_ea\n 3. Then, following three processes running like this:\n\n    PA                              PB\n echo 2 \u003e /proc/sys/vm/drop_caches\n  shrink_slab\n   prune_dcache_sb\n   // i_reg is added into lru, lru-\u003ei_ea-\u003ei_reg\n   prune_icache_sb\n    list_lru_walk_one\n     inode_lru_isolate\n      i_ea-\u003ei_state |= I_FREEING // set inode state\n     inode_lru_isolate\n      __iget(i_reg)\n      spin_unlock(\u0026i_reg-\u003ei_lock)\n      spin_unlock(lru_lock)\n                                     rm file A\n                                      i_reg-\u003enlink = 0\n      iput(i_reg) // i_reg-\u003enlink is 0, do evict\n       ext4_evict_inode\n        ext4_xattr_delete_inode\n         ext4_xattr_inode_dec_ref_all\n          ext4_xattr_inode_iget\n           ext4_iget(i_ea-\u003ei_ino)\n            iget_locked\n             find_inode_fast\n              __wait_on_freeing_inode(i_ea) ----\u2192 AA deadlock\n    dispose_list // cannot be executed by prune_icache_sb\n     wake_up_bit(\u0026i_ea-\u003ei_state)\n\nCase 2: In deleted inode writing function ubifs_jnl_write_inode(), file\n        deleting process holds BASEHD\u0027s wbuf-\u003eio_mutex while getting the\n\txattr inode, which could race with inode reclaiming process(The\n        reclaiming process could try locking BASEHD\u0027s wbuf-\u003eio_mutex in\n\tinode evicting function), then an ABBA deadlock problem would\n\thappen as following:\n\n 1. File A has inode ia and a xattr(with inode ixa), regular file B has\n    inode ib and a xattr.\n 2. getfattr(A, xattr_buf) // ixa is added into lru // lru-\u003eixa\n 3. Then, following three processes running like this:\n\n        PA                PB                        PC\n                echo 2 \u003e /proc/sys/vm/drop_caches\n                 shrink_slab\n                  prune_dcache_sb\n                  // ib and ia are added into lru, lru-\u003eixa-\u003eib-\u003eia\n                  prune_icache_sb\n                   list_lru_walk_one\n                    inode_lru_isolate\n                     ixa-\u003ei_state |= I_FREEING // set inode state\n                    inode_lru_isolate\n                     __iget(ib)\n                     spin_unlock(\u0026ib-\u003ei_lock)\n                     spin_unlock(lru_lock)\n                                                   rm file B\n                                                    ib-\u003enlink = 0\n rm file A\n  iput(ia)\n   ubifs_evict_inode(ia)\n    ubifs_jnl_delete_inode(ia)\n     ubifs_jnl_write_inode(ia)\n      make_reservation(BASEHD) // Lock wbuf-\u003eio_mutex\n      ubifs_iget(ixa-\u003ei_ino)\n       iget_locked\n        find_inode_fast\n         __wait_on_freeing_inode(ixa)\n          |          iput(ib) // ib-\u003enlink is 0, do evict\n          |           ubifs_evict_inode\n          |            ubifs_jnl_delete_inode(ib)\n          \u2193             ubifs_jnl_write_inode\n     ABBA deadlock \u2190-----make_reservation(BASEHD)\n                   dispose_list // cannot be executed by prune_icache_sb\n                    wake_up_bit(\u0026ixa-\u003ei_state)\n\nFix the possible deadlock by using new inode state flag I_LRU_ISOLATING\nto pin the inode in memory while inode_lru_isolate(\n---truncated---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T09:20:02.265Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/3525ad25240dfdd8c78f3470911ed10aa727aa72"
        },
        {
          "url": "https://git.kernel.org/stable/c/03880af02a78bc9a98b5a581f529cf709c88a9b8"
        },
        {
          "url": "https://git.kernel.org/stable/c/cda54ec82c0f9d05393242b20b13f69b083f7e88"
        },
        {
          "url": "https://git.kernel.org/stable/c/437741eba63bf4e437e2beb5583f8633556a2b98"
        },
        {
          "url": "https://git.kernel.org/stable/c/b9bda5f6012dd00372f3a06a82ed8971a4c57c32"
        },
        {
          "url": "https://git.kernel.org/stable/c/9063ab49c11e9518a3f2352434bb276cc8134c5f"
        },
        {
          "url": "https://git.kernel.org/stable/c/2a0629834cd82f05d424bbc193374f9a43d1f87d"
        }
      ],
      "title": "vfs: Don\u0027t evict inode under the inode lru traversing context",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-45003",
    "datePublished": "2024-09-04T19:54:46.276Z",
    "dateReserved": "2024-08-21T05:34:56.678Z",
    "dateUpdated": "2024-12-19T09:20:02.265Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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              "content": {
                "id": "CVE-2024-44987",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-04T20:20:00.407827Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
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          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-04T20:21:05.118Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/ipv6/ip6_output.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "571567e0277008459750f0728f246086b2659429",
              "status": "affected",
              "version": "0625491493d9000e4556bf566d205c28c8e7dc4e",
              "versionType": "git"
            },
            {
              "lessThan": "ce2f6cfab2c637d0bd9762104023a15d0ab7c0a8",
              "status": "affected",
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              "versionType": "git"
            },
            {
              "lessThan": "cb5880a0de12c7f618d2bdd84e2d985f1e06ed7e",
              "status": "affected",
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              "versionType": "git"
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            {
              "lessThan": "24e93695b1239fbe4c31e224372be77f82dab69a",
              "status": "affected",
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              "versionType": "git"
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              "versionType": "git"
            },
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              "status": "affected",
              "version": "0625491493d9000e4556bf566d205c28c8e7dc4e",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/ipv6/ip6_output.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.32"
            },
            {
              "lessThan": "2.6.32",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.321",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.283",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.225",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.166",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.107",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.48",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.10.*",
              "status": "unaffected",
              "version": "6.10.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.11",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: prevent UAF in ip6_send_skb()\n\nsyzbot reported an UAF in ip6_send_skb() [1]\n\nAfter ip6_local_out() has returned, we no longer can safely\ndereference rt, unless we hold rcu_read_lock().\n\nA similar issue has been fixed in commit\na688caa34beb (\"ipv6: take rcu lock in rawv6_send_hdrinc()\")\n\nAnother potential issue in ip6_finish_output2() is handled in a\nseparate patch.\n\n[1]\n BUG: KASAN: slab-use-after-free in ip6_send_skb+0x18d/0x230 net/ipv6/ip6_output.c:1964\nRead of size 8 at addr ffff88806dde4858 by task syz.1.380/6530\n\nCPU: 1 UID: 0 PID: 6530 Comm: syz.1.380 Not tainted 6.11.0-rc3-syzkaller-00306-gdf6cbc62cc9b #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024\nCall Trace:\n \u003cTASK\u003e\n  __dump_stack lib/dump_stack.c:93 [inline]\n  dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119\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  ip6_send_skb+0x18d/0x230 net/ipv6/ip6_output.c:1964\n  rawv6_push_pending_frames+0x75c/0x9e0 net/ipv6/raw.c:588\n  rawv6_sendmsg+0x19c7/0x23c0 net/ipv6/raw.c:926\n  sock_sendmsg_nosec net/socket.c:730 [inline]\n  __sock_sendmsg+0x1a6/0x270 net/socket.c:745\n  sock_write_iter+0x2dd/0x400 net/socket.c:1160\n do_iter_readv_writev+0x60a/0x890\n  vfs_writev+0x37c/0xbb0 fs/read_write.c:971\n  do_writev+0x1b1/0x350 fs/read_write.c:1018\n  do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n  do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7f936bf79e79\nCode: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007f936cd7f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000014\nRAX: ffffffffffffffda RBX: 00007f936c115f80 RCX: 00007f936bf79e79\nRDX: 0000000000000001 RSI: 0000000020000040 RDI: 0000000000000004\nRBP: 00007f936bfe7916 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\nR13: 0000000000000000 R14: 00007f936c115f80 R15: 00007fff2860a7a8\n \u003c/TASK\u003e\n\nAllocated by task 6530:\n  kasan_save_stack mm/kasan/common.c:47 [inline]\n  kasan_save_track+0x3f/0x80 mm/kasan/common.c:68\n  unpoison_slab_object mm/kasan/common.c:312 [inline]\n  __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338\n  kasan_slab_alloc include/linux/kasan.h:201 [inline]\n  slab_post_alloc_hook mm/slub.c:3988 [inline]\n  slab_alloc_node mm/slub.c:4037 [inline]\n  kmem_cache_alloc_noprof+0x135/0x2a0 mm/slub.c:4044\n  dst_alloc+0x12b/0x190 net/core/dst.c:89\n  ip6_blackhole_route+0x59/0x340 net/ipv6/route.c:2670\n  make_blackhole net/xfrm/xfrm_policy.c:3120 [inline]\n  xfrm_lookup_route+0xd1/0x1c0 net/xfrm/xfrm_policy.c:3313\n  ip6_dst_lookup_flow+0x13e/0x180 net/ipv6/ip6_output.c:1257\n  rawv6_sendmsg+0x1283/0x23c0 net/ipv6/raw.c:898\n  sock_sendmsg_nosec net/socket.c:730 [inline]\n  __sock_sendmsg+0x1a6/0x270 net/socket.c:745\n  ____sys_sendmsg+0x525/0x7d0 net/socket.c:2597\n  ___sys_sendmsg net/socket.c:2651 [inline]\n  __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2680\n  do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n  do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nFreed by task 45:\n  kasan_save_stack mm/kasan/common.c:47 [inline]\n  kasan_save_track+0x3f/0x80 mm/kasan/common.c:68\n  kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579\n  poison_slab_object+0xe0/0x150 mm/kasan/common.c:240\n  __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256\n  kasan_slab_free include/linux/kasan.h:184 [inline]\n  slab_free_hook mm/slub.c:2252 [inline]\n  slab_free mm/slub.c:4473 [inline]\n  kmem_cache_free+0x145/0x350 mm/slub.c:4548\n  dst_destroy+0x2ac/0x460 net/core/dst.c:124\n  rcu_do_batch kernel/rcu/tree.c:2569 [inline]\n  rcu_core+0xafd/0x1830 kernel/rcu/tree.\n---truncated---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T09:19:42.261Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/571567e0277008459750f0728f246086b2659429"
        },
        {
          "url": "https://git.kernel.org/stable/c/ce2f6cfab2c637d0bd9762104023a15d0ab7c0a8"
        },
        {
          "url": "https://git.kernel.org/stable/c/cb5880a0de12c7f618d2bdd84e2d985f1e06ed7e"
        },
        {
          "url": "https://git.kernel.org/stable/c/24e93695b1239fbe4c31e224372be77f82dab69a"
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        },
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          "url": "https://git.kernel.org/stable/c/af1dde074ee2ed7dd5bdca4e7e8ba17f44e7b011"
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          "url": "https://git.kernel.org/stable/c/e44bd76dd072756e674f45c5be00153f4ded68b2"
        },
        {
          "url": "https://git.kernel.org/stable/c/faa389b2fbaaec7fd27a390b4896139f9da662e3"
        }
      ],
      "title": "ipv6: prevent UAF in ip6_send_skb()",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-44987",
    "datePublished": "2024-09-04T19:54:35.510Z",
    "dateReserved": "2024-08-21T05:34:56.671Z",
    "dateUpdated": "2024-12-19T09:19:42.261Z",
    "state": "PUBLISHED"
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        "metrics": [
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              "content": {
                "id": "CVE-2024-44955",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T17:40:07.003970Z",
                "version": "2.0.3"
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              "type": "ssvc"
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          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-12T17:33:36.595Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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              "lessThan": "c7e65cab54a89f4df54110f0b44c4ade93d1a911",
              "status": "affected",
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              "versionType": "git"
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.64",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.10.*",
              "status": "unaffected",
              "version": "6.10.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.11",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Don\u0027t refer to dc_sink in is_dsc_need_re_compute\n\n[Why]\nWhen unplug one of monitors connected after mst hub, encounter null pointer dereference.\n\nIt\u0027s due to dc_sink get released immediately in early_unregister() or detect_ctx(). When\ncommit new state which directly referring to info stored in dc_sink will cause null pointer\ndereference.\n\n[how]\nRemove redundant checking condition. Relevant condition should already be covered by checking\nif dsc_aux is null or not. Also reset dsc_aux to NULL when the connector is disconnected."
        }
      ],
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        "dateUpdated": "2024-12-19T09:19:03.846Z",
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        },
        {
          "url": "https://git.kernel.org/stable/c/39b217193729aa45eded8de24d9245468a0c0263"
        },
        {
          "url": "https://git.kernel.org/stable/c/fcf6a49d79923a234844b8efe830a61f3f0584e4"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nkcm: Serialise kcm_sendmsg() for the same socket.\n\nsyzkaller reported UAF in kcm_release(). [0]\n\nThe scenario is\n\n  1. Thread A builds a skb with MSG_MORE and sets kcm-\u003eseq_skb.\n\n  2. Thread A resumes building skb from kcm-\u003eseq_skb but is blocked\n     by sk_stream_wait_memory()\n\n  3. Thread B calls sendmsg() concurrently, finishes building kcm-\u003eseq_skb\n     and puts the skb to the write queue\n\n  4. Thread A faces an error and finally frees skb that is already in the\n     write queue\n\n  5. kcm_release() does double-free the skb in the write queue\n\nWhen a thread is building a MSG_MORE skb, another thread must not touch it.\n\nLet\u0027s add a per-sk mutex and serialise kcm_sendmsg().\n\n[0]:\nBUG: KASAN: slab-use-after-free in __skb_unlink include/linux/skbuff.h:2366 [inline]\nBUG: KASAN: slab-use-after-free in __skb_dequeue include/linux/skbuff.h:2385 [inline]\nBUG: KASAN: slab-use-after-free in __skb_queue_purge_reason include/linux/skbuff.h:3175 [inline]\nBUG: KASAN: slab-use-after-free in __skb_queue_purge include/linux/skbuff.h:3181 [inline]\nBUG: KASAN: slab-use-after-free in kcm_release+0x170/0x4c8 net/kcm/kcmsock.c:1691\nRead of size 8 at addr ffff0000ced0fc80 by task syz-executor329/6167\n\nCPU: 1 PID: 6167 Comm: syz-executor329 Tainted: G    B              6.8.0-rc5-syzkaller-g9abbc24128bc #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024\nCall trace:\n dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:291\n show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:298\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106\n print_address_description mm/kasan/report.c:377 [inline]\n print_report+0x178/0x518 mm/kasan/report.c:488\n kasan_report+0xd8/0x138 mm/kasan/report.c:601\n __asan_report_load8_noabort+0x20/0x2c mm/kasan/report_generic.c:381\n __skb_unlink include/linux/skbuff.h:2366 [inline]\n __skb_dequeue include/linux/skbuff.h:2385 [inline]\n __skb_queue_purge_reason include/linux/skbuff.h:3175 [inline]\n __skb_queue_purge include/linux/skbuff.h:3181 [inline]\n kcm_release+0x170/0x4c8 net/kcm/kcmsock.c:1691\n __sock_release net/socket.c:659 [inline]\n sock_close+0xa4/0x1e8 net/socket.c:1421\n __fput+0x30c/0x738 fs/file_table.c:376\n ____fput+0x20/0x30 fs/file_table.c:404\n task_work_run+0x230/0x2e0 kernel/task_work.c:180\n exit_task_work include/linux/task_work.h:38 [inline]\n do_exit+0x618/0x1f64 kernel/exit.c:871\n do_group_exit+0x194/0x22c kernel/exit.c:1020\n get_signal+0x1500/0x15ec kernel/signal.c:2893\n do_signal+0x23c/0x3b44 arch/arm64/kernel/signal.c:1249\n do_notify_resume+0x74/0x1f4 arch/arm64/kernel/entry-common.c:148\n exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline]\n exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline]\n el0_svc+0xac/0x168 arch/arm64/kernel/entry-common.c:713\n el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730\n el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598\n\nAllocated by task 6166:\n kasan_save_stack mm/kasan/common.c:47 [inline]\n kasan_save_track+0x40/0x78 mm/kasan/common.c:68\n kasan_save_alloc_info+0x70/0x84 mm/kasan/generic.c:626\n unpoison_slab_object mm/kasan/common.c:314 [inline]\n __kasan_slab_alloc+0x74/0x8c mm/kasan/common.c:340\n kasan_slab_alloc include/linux/kasan.h:201 [inline]\n slab_post_alloc_hook mm/slub.c:3813 [inline]\n slab_alloc_node mm/slub.c:3860 [inline]\n kmem_cache_alloc_node+0x204/0x4c0 mm/slub.c:3903\n __alloc_skb+0x19c/0x3d8 net/core/skbuff.c:641\n alloc_skb include/linux/skbuff.h:1296 [inline]\n kcm_sendmsg+0x1d3c/0x2124 net/kcm/kcmsock.c:783\n sock_sendmsg_nosec net/socket.c:730 [inline]\n __sock_sendmsg net/socket.c:745 [inline]\n sock_sendmsg+0x220/0x2c0 net/socket.c:768\n splice_to_socket+0x7cc/0xd58 fs/splice.c:889\n do_splice_from fs/splice.c:941 [inline]\n direct_splice_actor+0xec/0x1d8 fs/splice.c:1164\n splice_direct_to_actor+0x438/0xa0c fs/splice.c:1108\n do_splice_direct_actor \n---truncated---"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btnxpuart: Shutdown timer and prevent rearming when driver unloading\n\nWhen unload the btnxpuart driver, its associated timer will be deleted.\nIf the timer happens to be modified at this moment, it leads to the\nkernel call this timer even after the driver unloaded, resulting in\nkernel panic.\nUse timer_shutdown_sync() instead of del_timer_sync() to prevent rearming.\n\npanic log:\n  Internal error: Oops: 0000000086000007 [#1] PREEMPT SMP\n  Modules linked in: algif_hash algif_skcipher af_alg moal(O) mlan(O) crct10dif_ce polyval_ce polyval_generic   snd_soc_imx_card snd_soc_fsl_asoc_card snd_soc_imx_audmux mxc_jpeg_encdec v4l2_jpeg snd_soc_wm8962 snd_soc_fsl_micfil   snd_soc_fsl_sai flexcan snd_soc_fsl_utils ap130x rpmsg_ctrl imx_pcm_dma can_dev rpmsg_char pwm_fan fuse [last unloaded:   btnxpuart]\n  CPU: 5 PID: 723 Comm: memtester Tainted: G           O       6.6.23-lts-next-06207-g4aef2658ac28 #1\n  Hardware name: NXP i.MX95 19X19 board (DT)\n  pstate: 20400009 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n  pc : 0xffff80007a2cf464\n  lr : call_timer_fn.isra.0+0x24/0x80\n...\n  Call trace:\n   0xffff80007a2cf464\n   __run_timers+0x234/0x280\n   run_timer_softirq+0x20/0x40\n   __do_softirq+0x100/0x26c\n   ____do_softirq+0x10/0x1c\n   call_on_irq_stack+0x24/0x4c\n   do_softirq_own_stack+0x1c/0x2c\n   irq_exit_rcu+0xc0/0xdc\n   el0_interrupt+0x54/0xd8\n   __el0_irq_handler_common+0x18/0x24\n   el0t_64_irq_handler+0x10/0x1c\n   el0t_64_irq+0x190/0x194\n  Code: ???????? ???????? ???????? ???????? (????????)\n  ---[ end trace 0000000000000000 ]---\n  Kernel panic - not syncing: Oops: Fatal exception in interrupt\n  SMP: stopping secondary CPUs\n  Kernel Offset: disabled\n  CPU features: 0x0,c0000000,40028143,1000721b\n  Memory Limit: none\n  ---[ end Kernel panic - not syncing: Oops: Fatal exception in interrupt ]---"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntcp: prevent concurrent execution of tcp_sk_exit_batch\n\nIts possible that two threads call tcp_sk_exit_batch() concurrently,\nonce from the cleanup_net workqueue, once from a task that failed to clone\na new netns.  In the latter case, error unwinding calls the exit handlers\nin reverse order for the \u0027failed\u0027 netns.\n\ntcp_sk_exit_batch() calls tcp_twsk_purge().\nProblem is that since commit b099ce2602d8 (\"net: Batch inet_twsk_purge\"),\nthis function picks up twsk in any dying netns, not just the one passed\nin via exit_batch list.\n\nThis means that the error unwind of setup_net() can \"steal\" and destroy\ntimewait sockets belonging to the exiting netns.\n\nThis allows the netns exit worker to proceed to call\n\nWARN_ON_ONCE(!refcount_dec_and_test(\u0026net-\u003eipv4.tcp_death_row.tw_refcount));\n\nwithout the expected 1 -\u003e 0 transition, which then splats.\n\nAt same time, error unwind path that is also running inet_twsk_purge()\nwill splat as well:\n\nWARNING: .. at lib/refcount.c:31 refcount_warn_saturate+0x1ed/0x210\n...\n refcount_dec include/linux/refcount.h:351 [inline]\n inet_twsk_kill+0x758/0x9c0 net/ipv4/inet_timewait_sock.c:70\n inet_twsk_deschedule_put net/ipv4/inet_timewait_sock.c:221\n inet_twsk_purge+0x725/0x890 net/ipv4/inet_timewait_sock.c:304\n tcp_sk_exit_batch+0x1c/0x170 net/ipv4/tcp_ipv4.c:3522\n ops_exit_list+0x128/0x180 net/core/net_namespace.c:178\n setup_net+0x714/0xb40 net/core/net_namespace.c:375\n copy_net_ns+0x2f0/0x670 net/core/net_namespace.c:508\n create_new_namespaces+0x3ea/0xb10 kernel/nsproxy.c:110\n\n... because refcount_dec() of tw_refcount unexpectedly dropped to 0.\n\nThis doesn\u0027t seem like an actual bug (no tw sockets got lost and I don\u0027t\nsee a use-after-free) but as erroneous trigger of debug check.\n\nAdd a mutex to force strict ordering: the task that calls tcp_twsk_purge()\nblocks other task from doing final _dec_and_test before mutex-owner has\nremoved all tw sockets of dying netns."
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          "url": "https://git.kernel.org/stable/c/e3d9de3742f4d5c47ae35f888d3023a5b54fcd2f"
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          "url": "https://git.kernel.org/stable/c/99580ae890ec8bd98b21a2a9c6668f8f1555b62e"
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          "url": "https://git.kernel.org/stable/c/f6fd2dbf584a4047ba88d1369ff91c9851261ec1"
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          "url": "https://git.kernel.org/stable/c/565d121b69980637f040eb4d84289869cdaabedf"
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      ],
      "title": "tcp: prevent concurrent execution of tcp_sk_exit_batch",
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    "dateReserved": "2024-08-21T05:34:56.671Z",
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                "id": "CVE-2024-44964",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
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                "timestamp": "2024-09-10T17:39:37.034016Z",
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          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
      }
    ],
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          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/intel/idpf/idpf_lib.c"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nidpf: fix memory leaks and crashes while performing a soft reset\n\nThe second tagged commit introduced a UAF, as it removed restoring\nq_vector-\u003evport pointers after reinitializating the structures.\nThis is due to that all queue allocation functions are performed here\nwith the new temporary vport structure and those functions rewrite\nthe backpointers to the vport. Then, this new struct is freed and\nthe pointers start leading to nowhere.\n\nBut generally speaking, the current logic is very fragile. It claims\nto be more reliable when the system is low on memory, but in fact, it\nconsumes two times more memory as at the moment of running this\nfunction, there are two vports allocated with their queues and vectors.\nMoreover, it claims to prevent the driver from running into \"bad state\",\nbut in fact, any error during the rebuild leaves the old vport in the\npartially allocated state.\nFinally, if the interface is down when the function is called, it always\nallocates a new queue set, but when the user decides to enable the\ninterface later on, vport_open() allocates them once again, IOW there\u0027s\na clear memory leak here.\n\nJust don\u0027t allocate a new queue set when performing a reset, that solves\ncrashes and memory leaks. Readd the old queue number and reopen the\ninterface on rollback - that solves limbo states when the device is left\ndisabled and/or without HW queues enabled."
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        },
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          "url": "https://git.kernel.org/stable/c/f01032a2ca099ec8d619aaa916c3762aa62495df"
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      "title": "idpf: fix memory leaks and crashes while performing a soft reset",
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