SUSE-SU-2025:01840-1

Vulnerability from csaf_suse - Published: 2025-06-09 15:33 - Updated: 2026-09-20 17:22
Summary
Security update for the Linux Kernel RT (Live Patch 0 for SLE 15 SP6)
Severity
Important
Notes
Title of the patch: Security update for the Linux Kernel RT (Live Patch 0 for SLE 15 SP6)
Description of the patch: This update for the Linux Kernel 6.4.0-150600_8 fixes several issues. The following security issues were fixed: - CVE-2024-49855: nbd: fix race between timeout and normal completion (bsc#1232900). - CVE-2025-21680: pktgen: Avoid out-of-bounds access in get_imix_entries (bsc#1236701). - CVE-2024-58013: Bluetooth: MGMT: Fix slab-use-after-free Read in mgmt_remove_adv_monitor_sync (bsc#1239096). - CVE-2024-57996: net_sched: sch_sfq: do not allow 1 packet limit (bsc#1239077).
Patchnames: SUSE-2025-1840,SUSE-SLE-Module-Live-Patching-15-SP6-2025-1840
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
CVE-2024-49855
7 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Product Identifier Version Remediation
Unresolved product id: SUSE Linux Enterprise Live Patching 15 SP6:kernel-livepatch-6_4_0-150600_8-rt-0:16-150600.3.1.x86_64 —
Vendor Fix
Threats
Impact important
CVE-2024-57996
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Recommended 1 product, the same list as for CVE-2024-49855
Threats
Impact important
CVE-2024-58013
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Recommended 1 product, the same list as for CVE-2024-49855
Threats
Impact important
CVE-2025-21680
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Recommended 1 product, the same list as for CVE-2024-49855
Threats
Impact important
References
To clipboard 

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          "text": "https://www.suse.com/security/cve/CVE-2024-49855"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nnbd: fix race between timeout and normal completion\n\nIf request timetout is handled by nbd_requeue_cmd(), normal completion\nhas to be stopped for avoiding to complete this requeued request, other\nuse-after-free can be triggered.\n\nFix the race by clearing NBD_CMD_INFLIGHT in nbd_requeue_cmd(), meantime\nmake sure that cmd-\u003elock is grabbed for clearing the flag and the\nrequeue.",
          "title": "CVE description"
        }
      ],
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          "date": "2025-06-09T15:33:37Z",
          "details": "important"
        }
      ],
      "title": "CVE-2024-49855"
    },
    {
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      "ids": [
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          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2024-57996"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet_sched: sch_sfq: don\u0027t allow 1 packet limit\n\nThe current implementation does not work correctly with a limit of\n1. iproute2 actually checks for this and this patch adds the check in\nkernel as well.\n\nThis fixes the following syzkaller reported crash:\n\nUBSAN: array-index-out-of-bounds in net/sched/sch_sfq.c:210:6\nindex 65535 is out of range for type \u0027struct sfq_head[128]\u0027\nCPU: 0 PID: 2569 Comm: syz-executor101 Not tainted 5.10.0-smp-DEV #1\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024\nCall Trace:\n  __dump_stack lib/dump_stack.c:79 [inline]\n  dump_stack+0x125/0x19f lib/dump_stack.c:120\n  ubsan_epilogue lib/ubsan.c:148 [inline]\n  __ubsan_handle_out_of_bounds+0xed/0x120 lib/ubsan.c:347\n  sfq_link net/sched/sch_sfq.c:210 [inline]\n  sfq_dec+0x528/0x600 net/sched/sch_sfq.c:238\n  sfq_dequeue+0x39b/0x9d0 net/sched/sch_sfq.c:500\n  sfq_reset+0x13/0x50 net/sched/sch_sfq.c:525\n  qdisc_reset+0xfe/0x510 net/sched/sch_generic.c:1026\n  tbf_reset+0x3d/0x100 net/sched/sch_tbf.c:319\n  qdisc_reset+0xfe/0x510 net/sched/sch_generic.c:1026\n  dev_reset_queue+0x8c/0x140 net/sched/sch_generic.c:1296\n  netdev_for_each_tx_queue include/linux/netdevice.h:2350 [inline]\n  dev_deactivate_many+0x6dc/0xc20 net/sched/sch_generic.c:1362\n  __dev_close_many+0x214/0x350 net/core/dev.c:1468\n  dev_close_many+0x207/0x510 net/core/dev.c:1506\n  unregister_netdevice_many+0x40f/0x16b0 net/core/dev.c:10738\n  unregister_netdevice_queue+0x2be/0x310 net/core/dev.c:10695\n  unregister_netdevice include/linux/netdevice.h:2893 [inline]\n  __tun_detach+0x6b6/0x1600 drivers/net/tun.c:689\n  tun_detach drivers/net/tun.c:705 [inline]\n  tun_chr_close+0x104/0x1b0 drivers/net/tun.c:3640\n  __fput+0x203/0x840 fs/file_table.c:280\n  task_work_run+0x129/0x1b0 kernel/task_work.c:185\n  exit_task_work include/linux/task_work.h:33 [inline]\n  do_exit+0x5ce/0x2200 kernel/exit.c:931\n  do_group_exit+0x144/0x310 kernel/exit.c:1046\n  __do_sys_exit_group kernel/exit.c:1057 [inline]\n  __se_sys_exit_group kernel/exit.c:1055 [inline]\n  __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1055\n do_syscall_64+0x6c/0xd0\n entry_SYSCALL_64_after_hwframe+0x61/0xcb\nRIP: 0033:0x7fe5e7b52479\nCode: Unable to access opcode bytes at RIP 0x7fe5e7b5244f.\nRSP: 002b:00007ffd3c800398 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7\nRAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe5e7b52479\nRDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000\nRBP: 00007fe5e7bcd2d0 R08: ffffffffffffffb8 R09: 0000000000000014\nR10: 0000000000000000 R11: 0000000000000246 R12: 00007fe5e7bcd2d0\nR13: 0000000000000000 R14: 00007fe5e7bcdd20 R15: 00007fe5e7b24270\n\nThe crash can be also be reproduced with the following (with a tc\nrecompiled to allow for sfq limits of 1):\n\ntc qdisc add dev dummy0 handle 1: root tbf rate 1Kbit burst 100b lat 1s\n../iproute2-6.9.0/tc/tc qdisc add dev dummy0 handle 2: parent 1:10 sfq limit 1\nifconfig dummy0 up\nping -I dummy0 -f -c2 -W0.1 8.8.8.8\nsleep 1\n\nScenario that triggers the crash:\n\n* the first packet is sent and queued in TBF and SFQ; qdisc qlen is 1\n\n* TBF dequeues: it peeks from SFQ which moves the packet to the\n  gso_skb list and keeps qdisc qlen set to 1. TBF is out of tokens so\n  it schedules itself for later.\n\n* the second packet is sent and TBF tries to queues it to SFQ. qdisc\n  qlen is now 2 and because the SFQ limit is 1 the packet is dropped\n  by SFQ. At this point qlen is 1, and all of the SFQ slots are empty,\n  however q-\u003etail is not NULL.\n\nAt this point, assuming no more packets are queued, when sch_dequeue\nruns again it will decrement the qlen for the current empty slot\ncausing an underflow and the subsequent out of bounds access.",
          "title": "CVE description"
        }
      ],
      "product_status": {
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          "summary": "CVE-2024-57996",
          "url": "https://www.suse.com/security/cve/CVE-2024-57996"
        },
        {
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          "summary": "SUSE Bug 1239076 for CVE-2024-57996",
          "url": "https://bugzilla.suse.com/1239076"
        },
        {
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          "summary": "SUSE Bug 1239077 for CVE-2024-57996",
          "url": "https://bugzilla.suse.com/1239077"
        },
        {
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          "summary": "SUSE Bug 1253291 for CVE-2024-57996",
          "url": "https://bugzilla.suse.com/1253291"
        },
        {
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          "url": "https://bugzilla.suse.com/1253292"
        }
      ],
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          "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 SP6:kernel-livepatch-6_4_0-150600_8-rt-0:16-150600.3.1.x86_64"
          ]
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      ],
      "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"
          },
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          "date": "2025-06-09T15:33:37Z",
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      "title": "CVE-2024-57996"
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    {
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      "ids": [
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        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: MGMT: Fix slab-use-after-free Read in mgmt_remove_adv_monitor_sync\n\nThis fixes the following crash:\n\n==================================================================\nBUG: KASAN: slab-use-after-free in mgmt_remove_adv_monitor_sync+0x3a/0xd0 net/bluetooth/mgmt.c:5543\nRead of size 8 at addr ffff88814128f898 by task kworker/u9:4/5961\n\nCPU: 1 UID: 0 PID: 5961 Comm: kworker/u9:4 Not tainted 6.12.0-syzkaller-10684-gf1cd565ce577 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024\nWorkqueue: hci0 hci_cmd_sync_work\nCall Trace:\n \u003cTASK\u003e\n __dump_stack lib/dump_stack.c:94 [inline]\n dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120\n print_address_description mm/kasan/report.c:378 [inline]\n print_report+0x169/0x550 mm/kasan/report.c:489\n kasan_report+0x143/0x180 mm/kasan/report.c:602\n mgmt_remove_adv_monitor_sync+0x3a/0xd0 net/bluetooth/mgmt.c:5543\n hci_cmd_sync_work+0x22b/0x400 net/bluetooth/hci_sync.c:332\n process_one_work kernel/workqueue.c:3229 [inline]\n process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310\n worker_thread+0x870/0xd30 kernel/workqueue.c:3391\n kthread+0x2f0/0x390 kernel/kthread.c:389\n ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244\n \u003c/TASK\u003e\n\nAllocated by task 16026:\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:377 [inline]\n __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:394\n kasan_kmalloc include/linux/kasan.h:260 [inline]\n __kmalloc_cache_noprof+0x243/0x390 mm/slub.c:4314\n kmalloc_noprof include/linux/slab.h:901 [inline]\n kzalloc_noprof include/linux/slab.h:1037 [inline]\n mgmt_pending_new+0x65/0x250 net/bluetooth/mgmt_util.c:269\n mgmt_pending_add+0x36/0x120 net/bluetooth/mgmt_util.c:296\n remove_adv_monitor+0x102/0x1b0 net/bluetooth/mgmt.c:5568\n hci_mgmt_cmd+0xc47/0x11d0 net/bluetooth/hci_sock.c:1712\n hci_sock_sendmsg+0x7b8/0x11c0 net/bluetooth/hci_sock.c:1832\n sock_sendmsg_nosec net/socket.c:711 [inline]\n __sock_sendmsg+0x221/0x270 net/socket.c:726\n sock_write_iter+0x2d7/0x3f0 net/socket.c:1147\n new_sync_write fs/read_write.c:586 [inline]\n vfs_write+0xaeb/0xd30 fs/read_write.c:679\n ksys_write+0x18f/0x2b0 fs/read_write.c:731\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 16022:\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:582\n poison_slab_object mm/kasan/common.c:247 [inline]\n __kasan_slab_free+0x59/0x70 mm/kasan/common.c:264\n kasan_slab_free include/linux/kasan.h:233 [inline]\n slab_free_hook mm/slub.c:2338 [inline]\n slab_free mm/slub.c:4598 [inline]\n kfree+0x196/0x420 mm/slub.c:4746\n mgmt_pending_foreach+0xd1/0x130 net/bluetooth/mgmt_util.c:259\n __mgmt_power_off+0x183/0x430 net/bluetooth/mgmt.c:9550\n hci_dev_close_sync+0x6c4/0x11c0 net/bluetooth/hci_sync.c:5208\n hci_dev_do_close net/bluetooth/hci_core.c:483 [inline]\n hci_dev_close+0x112/0x210 net/bluetooth/hci_core.c:508\n sock_do_ioctl+0x158/0x460 net/socket.c:1209\n sock_ioctl+0x626/0x8e0 net/socket.c:1328\n vfs_ioctl fs/ioctl.c:51 [inline]\n __do_sys_ioctl fs/ioctl.c:906 [inline]\n __se_sys_ioctl+0xf5/0x170 fs/ioctl.c:892\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",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP6:kernel-livepatch-6_4_0-150600_8-rt-0:16-150600.3.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2024-58013",
          "url": "https://www.suse.com/security/cve/CVE-2024-58013"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1239095 for CVE-2024-58013",
          "url": "https://bugzilla.suse.com/1239095"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1239096 for CVE-2024-58013",
          "url": "https://bugzilla.suse.com/1239096"
        }
      ],
      "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 SP6:kernel-livepatch-6_4_0-150600_8-rt-0:16-150600.3.1.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 SP6:kernel-livepatch-6_4_0-150600_8-rt-0:16-150600.3.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-06-09T15:33:37Z",
          "details": "important"
        }
      ],
      "title": "CVE-2024-58013"
    },
    {
      "cve": "CVE-2025-21680",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2025-21680"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\npktgen: Avoid out-of-bounds access in get_imix_entries\n\nPassing a sufficient amount of imix entries leads to invalid access to the\npkt_dev-\u003eimix_entries array because of the incorrect boundary check.\n\nUBSAN: array-index-out-of-bounds in net/core/pktgen.c:874:24\nindex 20 is out of range for type \u0027imix_pkt [20]\u0027\nCPU: 2 PID: 1210 Comm: bash Not tainted 6.10.0-rc1 #121\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996)\nCall Trace:\n\u003cTASK\u003e\ndump_stack_lvl lib/dump_stack.c:117\n__ubsan_handle_out_of_bounds lib/ubsan.c:429\nget_imix_entries net/core/pktgen.c:874\npktgen_if_write net/core/pktgen.c:1063\npde_write fs/proc/inode.c:334\nproc_reg_write fs/proc/inode.c:346\nvfs_write fs/read_write.c:593\nksys_write fs/read_write.c:644\ndo_syscall_64 arch/x86/entry/common.c:83\nentry_SYSCALL_64_after_hwframe arch/x86/entry/entry_64.S:130\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE.\n\n[ fp: allow to fill the array completely; minor changelog cleanup ]",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP6:kernel-livepatch-6_4_0-150600_8-rt-0:16-150600.3.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2025-21680",
          "url": "https://www.suse.com/security/cve/CVE-2025-21680"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1236700 for CVE-2025-21680",
          "url": "https://bugzilla.suse.com/1236700"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1236701 for CVE-2025-21680",
          "url": "https://bugzilla.suse.com/1236701"
        }
      ],
      "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 SP6:kernel-livepatch-6_4_0-150600_8-rt-0:16-150600.3.1.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 SP6:kernel-livepatch-6_4_0-150600_8-rt-0:16-150600.3.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-06-09T15:33:37Z",
          "details": "important"
        }
      ],
      "title": "CVE-2025-21680"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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.


Detection rules are retrieved from Rulezet.


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.