suse-su-2025:03503-1
Vulnerability from csaf_suse
Published
2025-10-09 06:33
Modified
2025-10-09 06:33
Summary
Security update for the Linux Kernel (Live Patch 48 for SLE 15 SP3)

Notes

Title of the patch
Security update for the Linux Kernel (Live Patch 48 for SLE 15 SP3)
Description of the patch
This update for the Linux Kernel 5.3.18-150300_59_174 fixes several issues. The following security issues were fixed: - CVE-2024-53168: sunrpc: fix one UAF issue caused by sunrpc kernel tcp socket (bsc#1243650). - CVE-2024-50154: tcp/dccp: Do not use timer_pending() in reqsk_queue_unlink() (bsc#1233072). - CVE-2025-38477: net/sched: sch_qfq: Fix race condition on qfq_aggregate (bsc#1247315). - CVE-2025-21791: vrf: use RCU protection in l3mdev_l3_out() (bsc#1240744). - CVE-2025-21692: net: sched: fix ets qdisc OOB Indexing (bsc#1237048).
Patchnames
SUSE-2025-3503,SUSE-SLE-Module-Live-Patching-15-SP3-2025-3503
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).


To clipboard 

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    "category": "csaf_security_advisory",
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    "distribution": {
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        "text": "This update for the Linux Kernel 5.3.18-150300_59_174 fixes several issues.\n\nThe following security issues were fixed:\n\n- CVE-2024-53168: sunrpc: fix one UAF issue caused by sunrpc kernel tcp socket (bsc#1243650).\n- CVE-2024-50154: tcp/dccp: Do not use timer_pending() in reqsk_queue_unlink() (bsc#1233072).\n- CVE-2025-38477: net/sched: sch_qfq: Fix race condition on qfq_aggregate (bsc#1247315).\n- CVE-2025-21791: vrf: use RCU protection in l3mdev_l3_out() (bsc#1240744).\n- CVE-2025-21692: net: sched: fix ets qdisc OOB Indexing (bsc#1237048).\n",
        "title": "Description of the patch"
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        "title": "Patchnames"
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        "summary": "SUSE Bug 1240744",
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        "summary": "SUSE Bug 1243650",
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        "summary": "SUSE CVE CVE-2024-50154 page",
        "url": "https://www.suse.com/security/cve/CVE-2024-50154/"
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        "url": "https://www.suse.com/security/cve/CVE-2025-21692/"
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        "url": "https://www.suse.com/security/cve/CVE-2025-21791/"
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        "summary": "SUSE CVE CVE-2025-38477 page",
        "url": "https://www.suse.com/security/cve/CVE-2025-38477/"
      }
    ],
    "title": "Security update for the Linux Kernel (Live Patch 48 for SLE 15 SP3)",
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  "vulnerabilities": [
    {
      "cve": "CVE-2024-50154",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2024-50154"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\ntcp/dccp: Don\u0027t use timer_pending() in reqsk_queue_unlink().\n\nMartin KaFai Lau reported use-after-free [0] in reqsk_timer_handler().\n\n  \"\"\"\n  We are seeing a use-after-free from a bpf prog attached to\n  trace_tcp_retransmit_synack. The program passes the req-\u003esk to the\n  bpf_sk_storage_get_tracing kernel helper which does check for null\n  before using it.\n  \"\"\"\n\nThe commit 83fccfc3940c (\"inet: fix potential deadlock in\nreqsk_queue_unlink()\") added timer_pending() in reqsk_queue_unlink() not\nto call del_timer_sync() from reqsk_timer_handler(), but it introduced a\nsmall race window.\n\nBefore the timer is called, expire_timers() calls detach_timer(timer, true)\nto clear timer-\u003eentry.pprev and marks it as not pending.\n\nIf reqsk_queue_unlink() checks timer_pending() just after expire_timers()\ncalls detach_timer(), TCP will miss del_timer_sync(); the reqsk timer will\ncontinue running and send multiple SYN+ACKs until it expires.\n\nThe reported UAF could happen if req-\u003esk is close()d earlier than the timer\nexpiration, which is 63s by default.\n\nThe scenario would be\n\n  1. inet_csk_complete_hashdance() calls inet_csk_reqsk_queue_drop(),\n     but del_timer_sync() is missed\n\n  2. reqsk timer is executed and scheduled again\n\n  3. req-\u003esk is accept()ed and reqsk_put() decrements rsk_refcnt, but\n     reqsk timer still has another one, and inet_csk_accept() does not\n     clear req-\u003esk for non-TFO sockets\n\n  4. sk is close()d\n\n  5. reqsk timer is executed again, and BPF touches req-\u003esk\n\nLet\u0027s not use timer_pending() by passing the caller context to\n__inet_csk_reqsk_queue_drop().\n\nNote that reqsk timer is pinned, so the issue does not happen in most\nuse cases. [1]\n\n[0]\nBUG: KFENCE: use-after-free read in bpf_sk_storage_get_tracing+0x2e/0x1b0\n\nUse-after-free read at 0x00000000a891fb3a (in kfence-#1):\nbpf_sk_storage_get_tracing+0x2e/0x1b0\nbpf_prog_5ea3e95db6da0438_tcp_retransmit_synack+0x1d20/0x1dda\nbpf_trace_run2+0x4c/0xc0\ntcp_rtx_synack+0xf9/0x100\nreqsk_timer_handler+0xda/0x3d0\nrun_timer_softirq+0x292/0x8a0\nirq_exit_rcu+0xf5/0x320\nsysvec_apic_timer_interrupt+0x6d/0x80\nasm_sysvec_apic_timer_interrupt+0x16/0x20\nintel_idle_irq+0x5a/0xa0\ncpuidle_enter_state+0x94/0x273\ncpu_startup_entry+0x15e/0x260\nstart_secondary+0x8a/0x90\nsecondary_startup_64_no_verify+0xfa/0xfb\n\nkfence-#1: 0x00000000a72cc7b6-0x00000000d97616d9, size=2376, cache=TCPv6\n\nallocated by task 0 on cpu 9 at 260507.901592s:\nsk_prot_alloc+0x35/0x140\nsk_clone_lock+0x1f/0x3f0\ninet_csk_clone_lock+0x15/0x160\ntcp_create_openreq_child+0x1f/0x410\ntcp_v6_syn_recv_sock+0x1da/0x700\ntcp_check_req+0x1fb/0x510\ntcp_v6_rcv+0x98b/0x1420\nipv6_list_rcv+0x2258/0x26e0\nnapi_complete_done+0x5b1/0x2990\nmlx5e_napi_poll+0x2ae/0x8d0\nnet_rx_action+0x13e/0x590\nirq_exit_rcu+0xf5/0x320\ncommon_interrupt+0x80/0x90\nasm_common_interrupt+0x22/0x40\ncpuidle_enter_state+0xfb/0x273\ncpu_startup_entry+0x15e/0x260\nstart_secondary+0x8a/0x90\nsecondary_startup_64_no_verify+0xfa/0xfb\n\nfreed by task 0 on cpu 9 at 260507.927527s:\nrcu_core_si+0x4ff/0xf10\nirq_exit_rcu+0xf5/0x320\nsysvec_apic_timer_interrupt+0x6d/0x80\nasm_sysvec_apic_timer_interrupt+0x16/0x20\ncpuidle_enter_state+0xfb/0x273\ncpu_startup_entry+0x15e/0x260\nstart_secondary+0x8a/0x90\nsecondary_startup_64_no_verify+0xfa/0xfb",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.ppc64le",
          "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2024-50154",
          "url": "https://www.suse.com/security/cve/CVE-2024-50154"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1233070 for CVE-2024-50154",
          "url": "https://bugzilla.suse.com/1233070"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1233072 for CVE-2024-50154",
          "url": "https://bugzilla.suse.com/1233072"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.s390x",
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          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
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            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-10-09T06:33:46Z",
          "details": "important"
        }
      ],
      "title": "CVE-2024-50154"
    },
    {
      "cve": "CVE-2024-53168",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2024-53168"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nsunrpc: fix one UAF issue caused by sunrpc kernel tcp socket\n\nBUG: KASAN: slab-use-after-free in tcp_write_timer_handler+0x156/0x3e0\nRead of size 1 at addr ffff888111f322cd by task swapper/0/0\n\nCPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.12.0-rc4-dirty #7\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1\nCall Trace:\n \u003cIRQ\u003e\n dump_stack_lvl+0x68/0xa0\n print_address_description.constprop.0+0x2c/0x3d0\n print_report+0xb4/0x270\n kasan_report+0xbd/0xf0\n tcp_write_timer_handler+0x156/0x3e0\n tcp_write_timer+0x66/0x170\n call_timer_fn+0xfb/0x1d0\n __run_timers+0x3f8/0x480\n run_timer_softirq+0x9b/0x100\n handle_softirqs+0x153/0x390\n __irq_exit_rcu+0x103/0x120\n irq_exit_rcu+0xe/0x20\n sysvec_apic_timer_interrupt+0x76/0x90\n \u003c/IRQ\u003e\n \u003cTASK\u003e\n asm_sysvec_apic_timer_interrupt+0x1a/0x20\nRIP: 0010:default_idle+0xf/0x20\nCode: 4c 01 c7 4c 29 c2 e9 72 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90\n 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 33 f8 25 00 fb f4 \u003cfa\u003e c3 cc cc cc\n cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90\nRSP: 0018:ffffffffa2007e28 EFLAGS: 00000242\nRAX: 00000000000f3b31 RBX: 1ffffffff4400fc7 RCX: ffffffffa09c3196\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff9f00590f\nRBP: 0000000000000000 R08: 0000000000000001 R09: ffffed102360835d\nR10: ffff88811b041aeb R11: 0000000000000001 R12: 0000000000000000\nR13: ffffffffa202d7c0 R14: 0000000000000000 R15: 00000000000147d0\n default_idle_call+0x6b/0xa0\n cpuidle_idle_call+0x1af/0x1f0\n do_idle+0xbc/0x130\n cpu_startup_entry+0x33/0x40\n rest_init+0x11f/0x210\n start_kernel+0x39a/0x420\n x86_64_start_reservations+0x18/0x30\n x86_64_start_kernel+0x97/0xa0\n common_startup_64+0x13e/0x141\n \u003c/TASK\u003e\n\nAllocated by task 595:\n kasan_save_stack+0x24/0x50\n kasan_save_track+0x14/0x30\n __kasan_slab_alloc+0x87/0x90\n kmem_cache_alloc_noprof+0x12b/0x3f0\n copy_net_ns+0x94/0x380\n create_new_namespaces+0x24c/0x500\n unshare_nsproxy_namespaces+0x75/0xf0\n ksys_unshare+0x24e/0x4f0\n __x64_sys_unshare+0x1f/0x30\n do_syscall_64+0x70/0x180\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nFreed by task 100:\n kasan_save_stack+0x24/0x50\n kasan_save_track+0x14/0x30\n kasan_save_free_info+0x3b/0x60\n __kasan_slab_free+0x54/0x70\n kmem_cache_free+0x156/0x5d0\n cleanup_net+0x5d3/0x670\n process_one_work+0x776/0xa90\n worker_thread+0x2e2/0x560\n kthread+0x1a8/0x1f0\n ret_from_fork+0x34/0x60\n ret_from_fork_asm+0x1a/0x30\n\nReproduction script:\n\nmkdir -p /mnt/nfsshare\nmkdir -p /mnt/nfs/netns_1\nmkfs.ext4 /dev/sdb\nmount /dev/sdb /mnt/nfsshare\nsystemctl restart nfs-server\nchmod 777 /mnt/nfsshare\nexportfs -i -o rw,no_root_squash *:/mnt/nfsshare\n\nip netns add netns_1\nip link add name veth_1_peer type veth peer veth_1\nifconfig veth_1_peer 11.11.0.254 up\nip link set veth_1 netns netns_1\nip netns exec netns_1 ifconfig veth_1 11.11.0.1\n\nip netns exec netns_1 /root/iptables -A OUTPUT -d 11.11.0.254 -p tcp \\\n\t--tcp-flags FIN FIN  -j DROP\n\n(note: In my environment, a DESTROY_CLIENTID operation is always sent\n immediately, breaking the nfs tcp connection.)\nip netns exec netns_1 timeout -s 9 300 mount -t nfs -o proto=tcp,vers=4.1 \\\n\t11.11.0.254:/mnt/nfsshare /mnt/nfs/netns_1\n\nip netns del netns_1\n\nThe reason here is that the tcp socket in netns_1 (nfs side) has been\nshutdown and closed (done in xs_destroy), but the FIN message (with ack)\nis discarded, and the nfsd side keeps sending retransmission messages.\nAs a result, when the tcp sock in netns_1 processes the received message,\nit sends the message (FIN message) in the sending queue, and the tcp timer\nis re-established. When the network namespace is deleted, the net structure\naccessed by tcp\u0027s timer handler function causes problems.\n\nTo fix this problem, let\u0027s hold netns refcnt for the tcp kernel socket as\ndone in other modules. This is an ugly hack which can easily be backported\nto earlier kernels. A proper fix which cleans up the interfaces will\nfollow, but may not be so easy to backport.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.ppc64le",
          "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2024-53168",
          "url": "https://www.suse.com/security/cve/CVE-2024-53168"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1234887 for CVE-2024-53168",
          "url": "https://bugzilla.suse.com/1234887"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1243650 for CVE-2024-53168",
          "url": "https://bugzilla.suse.com/1243650"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-10-09T06:33:46Z",
          "details": "important"
        }
      ],
      "title": "CVE-2024-53168"
    },
    {
      "cve": "CVE-2025-21692",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2025-21692"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: sched: fix ets qdisc OOB Indexing\n\nHaowei Yan \u003cg1042620637@gmail.com\u003e found that ets_class_from_arg() can\nindex an Out-Of-Bound class in ets_class_from_arg() when passed clid of\n0. The overflow may cause local privilege escalation.\n\n [   18.852298] ------------[ cut here ]------------\n [   18.853271] UBSAN: array-index-out-of-bounds in net/sched/sch_ets.c:93:20\n [   18.853743] index 18446744073709551615 is out of range for type \u0027ets_class [16]\u0027\n [   18.854254] CPU: 0 UID: 0 PID: 1275 Comm: poc Not tainted 6.12.6-dirty #17\n [   18.854821] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014\n [   18.856532] Call Trace:\n [   18.857441]  \u003cTASK\u003e\n [   18.858227]  dump_stack_lvl+0xc2/0xf0\n [   18.859607]  dump_stack+0x10/0x20\n [   18.860908]  __ubsan_handle_out_of_bounds+0xa7/0xf0\n [   18.864022]  ets_class_change+0x3d6/0x3f0\n [   18.864322]  tc_ctl_tclass+0x251/0x910\n [   18.864587]  ? lock_acquire+0x5e/0x140\n [   18.865113]  ? __mutex_lock+0x9c/0xe70\n [   18.866009]  ? __mutex_lock+0xa34/0xe70\n [   18.866401]  rtnetlink_rcv_msg+0x170/0x6f0\n [   18.866806]  ? __lock_acquire+0x578/0xc10\n [   18.867184]  ? __pfx_rtnetlink_rcv_msg+0x10/0x10\n [   18.867503]  netlink_rcv_skb+0x59/0x110\n [   18.867776]  rtnetlink_rcv+0x15/0x30\n [   18.868159]  netlink_unicast+0x1c3/0x2b0\n [   18.868440]  netlink_sendmsg+0x239/0x4b0\n [   18.868721]  ____sys_sendmsg+0x3e2/0x410\n [   18.869012]  ___sys_sendmsg+0x88/0xe0\n [   18.869276]  ? rseq_ip_fixup+0x198/0x260\n [   18.869563]  ? rseq_update_cpu_node_id+0x10a/0x190\n [   18.869900]  ? trace_hardirqs_off+0x5a/0xd0\n [   18.870196]  ? syscall_exit_to_user_mode+0xcc/0x220\n [   18.870547]  ? do_syscall_64+0x93/0x150\n [   18.870821]  ? __memcg_slab_free_hook+0x69/0x290\n [   18.871157]  __sys_sendmsg+0x69/0xd0\n [   18.871416]  __x64_sys_sendmsg+0x1d/0x30\n [   18.871699]  x64_sys_call+0x9e2/0x2670\n [   18.871979]  do_syscall_64+0x87/0x150\n [   18.873280]  ? do_syscall_64+0x93/0x150\n [   18.874742]  ? lock_release+0x7b/0x160\n [   18.876157]  ? do_user_addr_fault+0x5ce/0x8f0\n [   18.877833]  ? irqentry_exit_to_user_mode+0xc2/0x210\n [   18.879608]  ? irqentry_exit+0x77/0xb0\n [   18.879808]  ? clear_bhb_loop+0x15/0x70\n [   18.880023]  ? clear_bhb_loop+0x15/0x70\n [   18.880223]  ? clear_bhb_loop+0x15/0x70\n [   18.880426]  entry_SYSCALL_64_after_hwframe+0x76/0x7e\n [   18.880683] RIP: 0033:0x44a957\n [   18.880851] Code: ff ff e8 fc 00 00 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 \u003c48\u003e 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 8974 24 10\n [   18.881766] RSP: 002b:00007ffcdd00fad8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e\n [   18.882149] RAX: ffffffffffffffda RBX: 00007ffcdd010db8 RCX: 000000000044a957\n [   18.882507] RDX: 0000000000000000 RSI: 00007ffcdd00fb70 RDI: 0000000000000003\n [   18.885037] RBP: 00007ffcdd010bc0 R08: 000000000703c770 R09: 000000000703c7c0\n [   18.887203] R10: 0000000000000080 R11: 0000000000000246 R12: 0000000000000001\n [   18.888026] R13: 00007ffcdd010da8 R14: 00000000004ca7d0 R15: 0000000000000001\n [   18.888395]  \u003c/TASK\u003e\n [   18.888610] ---[ end trace ]---",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.ppc64le",
          "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2025-21692",
          "url": "https://www.suse.com/security/cve/CVE-2025-21692"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1237028 for CVE-2025-21692",
          "url": "https://bugzilla.suse.com/1237028"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1237048 for CVE-2025-21692",
          "url": "https://bugzilla.suse.com/1237048"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-10-09T06:33:46Z",
          "details": "important"
        }
      ],
      "title": "CVE-2025-21692"
    },
    {
      "cve": "CVE-2025-21791",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2025-21791"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nvrf: use RCU protection in l3mdev_l3_out()\n\nl3mdev_l3_out() can be called without RCU being held:\n\nraw_sendmsg()\n ip_push_pending_frames()\n  ip_send_skb()\n   ip_local_out()\n    __ip_local_out()\n     l3mdev_ip_out()\n\nAdd rcu_read_lock() / rcu_read_unlock() pair to avoid\na potential UAF.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.ppc64le",
          "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2025-21791",
          "url": "https://www.suse.com/security/cve/CVE-2025-21791"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1238512 for CVE-2025-21791",
          "url": "https://bugzilla.suse.com/1238512"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1240744 for CVE-2025-21791",
          "url": "https://bugzilla.suse.com/1240744"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-10-09T06:33:46Z",
          "details": "important"
        }
      ],
      "title": "CVE-2025-21791"
    },
    {
      "cve": "CVE-2025-38477",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2025-38477"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: sch_qfq: Fix race condition on qfq_aggregate\n\nA race condition can occur when \u0027agg\u0027 is modified in qfq_change_agg\n(called during qfq_enqueue) while other threads access it\nconcurrently. For example, qfq_dump_class may trigger a NULL\ndereference, and qfq_delete_class may cause a use-after-free.\n\nThis patch addresses the issue by:\n\n1. Moved qfq_destroy_class into the critical section.\n\n2. Added sch_tree_lock protection to qfq_dump_class and\nqfq_dump_class_stats.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.ppc64le",
          "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2025-38477",
          "url": "https://www.suse.com/security/cve/CVE-2025-38477"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1247314 for CVE-2025-38477",
          "url": "https://bugzilla.suse.com/1247314"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1247315 for CVE-2025-38477",
          "url": "https://bugzilla.suse.com/1247315"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_174-default-18-150300.2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-10-09T06:33:46Z",
          "details": "important"
        }
      ],
      "title": "CVE-2025-38477"
    }
  ]
}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.