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Fencer Vulns
high 7.8

CVE-2025-38464 json

tipc: Fix use-after-free in tipc_conn_close().

published 2025-07-25 15 mo ago modified 2026-08-05 3 mo ago also EUVD-2025-22677

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 12%
public exploits
0
none known

Summary

In the Linux kernel, the following vulnerability has been resolved:

tipc: Fix use-after-free in tipc_conn_close().

syzbot reported a null-ptr-deref in tipc_conn_close() during netns dismantle. [0]

tipc_topsrv_stop() iterates tipc_net(net)->topsrv->conn_idr and calls tipc_conn_close() for each tipc_conn.

The problem is that tipc_conn_close() is called after releasing the IDR lock.

At the same time, there might be tipc_conn_recv_work() running and it could call tipc_conn_close() for the same tipc_conn and release its last ->kref.

Once we release the IDR lock in tipc_topsrv_stop(), there is no guarantee that the tipc_conn is alive.

Let's hold the ref before releasing the lock and put the ref after tipc_conn_close() in tipc_topsrv_stop().

[0]: BUG: KASAN: use-after-free in tipc_conn_close+0x122/0x140 net/tipc/topsrv.c:165 Read of size 8 at addr ffff888099305a08 by task kworker/u4:3/435

CPU: 0 PID: 435 Comm: kworker/u4:3 Not tainted 4.19.204-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 print_address_description.cold+0x54/0x219 mm/kasan/report.c:256 kasan_report_error.cold+0x8a/0x1b9 mm/kasan/report.c:354 kasan_report mm/kasan/report.c:412 [inline] __asan_report_load8_noabort+0x88/0x90 mm/kasan/report.c:433 tipc_conn_close+0x122/0x140 net/tipc/topsrv.c:165 tipc_topsrv_stop net/tipc/topsrv.c:701 [inline] tipc_topsrv_exit_net+0x27b/0x5c0 net/tipc/topsrv.c:722 ops_exit_list+0xa5/0x150 net/core/net_namespace.c:153 cleanup_net+0x3b4/0x8b0 net/core/net_namespace.c:553 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415

Allocated by task 23: kmem_cache_alloc_trace+0x12f/0x380 mm/slab.c:3625 kmalloc include/linux/slab.h:515 [inline] kzalloc include/linux/slab.h:709 [inline] tipc_conn_alloc+0x43/0x4f0 net/tipc/topsrv.c:192 tipc_topsrv_accept+0x1b5/0x280 net/tipc/topsrv.c:470 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415

Freed by task 23: __cache_free mm/slab.c:3503 [inline] kfree+0xcc/0x210 mm/slab.c:3822 tipc_conn_kref_release net/tipc/topsrv.c:150 [inline] kref_put include/linux/kref.h:70 [inline] conn_put+0x2cd/0x3a0 net/tipc/topsrv.c:155 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415

The buggy address belongs to the object at ffff888099305a00 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 8 bytes inside of 512-byte region [ffff888099305a00, ffff888099305c00) The buggy address belongs to the page: page:ffffea000264c140 count:1 mapcount:0 mapping:ffff88813bff0940 index:0x0 flags: 0xfff00000000100(slab) raw: 00fff00000000100 ffffea00028b6b88 ffffea0002cd2b08 ffff88813bff0940 raw: 0000000000000000 ffff888099305000 0000000100000006 0000000000000000 page dumped because: kasan: bad access detected

Memory state around the buggy address: ffff888099305900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888099305980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff888099305a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888099305a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888099305b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb

Patch / fix

  • Linux Linux 5.4.296, 5.10.240, 5.15.189, 6.1.146, 6.6.99, 6.12.39, 6.15.7, 6.16
  • linux Debian 12 6.1.147-1
  • linux Debian 13 6.12.41-1
  • linux Debian 14 6.16.3-1

debian advisories DEBIAN-CVE-2025-38464

  • linux Ubuntu 22.04 LTS 5.15.0-156.166
  • linux Ubuntu 24.04 LTS 6.8.0-100.100
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1092.99
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1046.49
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1092.101
  • linux-gcp Ubuntu 24.04 LTS 6.8.0-1047.50
  • linux-gke Ubuntu 22.04 LTS 5.15.0-1089.95
  • linux-gke Ubuntu 24.04 LTS 6.8.0-1043.48

ubuntu advisories UBUNTU-CVE-2025-38464

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kernel RHEL 9 5.14.0-570.39.1.el9_6
  • rv RHEL 9 5.14.0-570.39.1.el9_6
  • perf RHEL 9 5.14.0-570.39.1.el9_6
  • rtla RHEL 9 5.14.0-570.39.1.el9_6
  • libperf RHEL 9 5.14.0-570.39.1.el9_6
  • kernel-rt RHEL 9 5.14.0-570.39.1.el9_6
  • kernel-64k RHEL 9 5.14.0-570.39.1.el9_6
  • kernel-core RHEL 9 5.14.0-570.39.1.el9_6

red hat advisories RHSA-2025:15670RHSA-2025:15668RHSA-2025:15660RHSA-2025:15658RHSA-2025:15656RHSA-2025:15647

  • kernel-rt Linux Micro 6.2 6.12.0-160000.6.1
  • kernel-64kb SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 6.12.0-160000.6.1
  • kernel-source SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 6.12.0-160000.6.1
  • kernel-default SLES 16.0, SLE High Availability Extension 16.0, Linux Micro 6.2 +1 more 6.12.0-160000.6.1
  • kernel-default-base SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 6.12.0-160000.6.1.160000.2.4
  • kernel-syms SLES 16.0, Linux Micro Extras 6.2, SLES for SAP applications 16.0 6.12.0-160000.6.1
  • kernel-obs-qa SLES for SAP applications 16.0, SLES 16.0 6.12.0-160000.6.1
  • kernel-kvmsmall SLES for SAP applications 16.0, SLES 16.0 6.12.0-160000.6.1

suse advisories SUSE-SU-2025:21074-1SUSE-SU-2025:21139-1SUSE-SU-2026:20560-1SUSE-SU-2025:21179-1SUSE-SU-2025:03634-1SUSE-SU-2025:03633-1

  • kernel-rt openSUSE Leap 16.0 6.12.0-160000.6.1
  • dtb-aarch64 openSUSE Leap 16.0 6.12.0-160000.6.1
  • kernel-64kb openSUSE Leap 16.0 6.12.0-160000.6.1
  • kernel-syms openSUSE Leap 16.0 6.12.0-160000.6.1
  • kernel-obs-qa openSUSE Leap 16.0 6.12.0-160000.6.1
  • kernel-source openSUSE Leap 16.0 6.12.0-160000.6.1
  • kernel-default openSUSE Leap 16.0 6.12.0-160000.6.1
  • kernel-kvmsmall openSUSE Leap 16.0 6.12.0-160000.6.1

opensuse advisories openSUSE-SU-2025:20081-1

  • kernel-abi-stablelists AlmaLinux 10 6.12.0-55.30.1.el10_0
  • kernel AlmaLinux 8 4.18.0-553.72.1.el8_10
  • perf AlmaLinux 8 4.18.0-553.72.1.el8_10
  • bpftool AlmaLinux 8 4.18.0-553.72.1.el8_10
  • kernel-core AlmaLinux 8 4.18.0-553.72.1.el8_10
  • kernel-tools AlmaLinux 8 4.18.0-553.72.1.el8_10
  • python3-perf AlmaLinux 8 4.18.0-553.72.1.el8_10
  • kernel-modules AlmaLinux 8 4.18.0-553.72.1.el8_10

almalinux advisories ALSA-2025:15005ALSA-2025:15008ALSA-2025:15009ALSA-2025:15011

  • kernel Rocky Linux 9 5.14.0-570.39.1.el9_6
  • kernel Rocky Linux 10 6.12.0-55.30.1.el10_0
  • kernel-rt Rocky Linux 8 4.18.0-553.72.1.rt7.413.el8_10
  • kernel Rocky Linux 8 4.18.0-553.72.1.el8_10

rocky linux advisories RLSA-2025:15011RLSA-2025:15005RLSA-2025:15009RLSA-2025:15008

  • kernel Azure Linux 3.0 6.6.104.2-1
  • kernel CBL-Mariner 2.0 5.15.200.1-1

azure linux advisories AZL-65807AZL-72953

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-38464 updated cvss 7.3

kernel: tipc: Fix use-after-free in tipc_conn_close()

  • Red Hat Enterprise Linux 9 kernel-rt, kernel-rt-kvm, kernel-rt-core, kernel-rt-modules, kernel-rt-debug-kvm, kernel-rt-debug-core, +12 more
    affected: workaround, no fix available “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.”
  • Red Hat CodeReady Linux Builder EUS (v.9.4) libperf 5.14.0-427.88.1.el9_4, kernel-debuginfo-common-s390x 5.14.0-427.88.1.el9_4, kernel-debuginfo-common-x86_64 5.14.0-427.88.1.el9_4, kernel-debuginfo-common-aarch64 5.14.0-427.88.1.el9_4, kernel-debuginfo-common-ppc64le 5.14.0-427.88.1.el9_4
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:15668
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-570.39.1.el9_6, perf 5.14.0-570.39.1.el9_6, rtla 5.14.0-570.39.1.el9_6, python3-perf 5.14.0-570.39.1.el9_6, kernel-devel-matched 5.14.0-570.39.1.el9_6, kernel-64k-devel-matched 5.14.0-570.39.1.el9_6, +7 more
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:15011
  • Red Hat Enterprise Linux AppStream (v. 10) rv 6.12.0-55.30.1.el10_0, perf 6.12.0-55.30.1.el10_0, rtla 6.12.0-55.30.1.el10_0, python3-perf 6.12.0-55.30.1.el10_0, kernel-devel-matched 6.12.0-55.30.1.el10_0, kernel-64k-devel-matched 6.12.0-55.30.1.el10_0, +7 more
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:15005
  • Red Hat Enterprise Linux AppStream E4S (v.9.0) perf 5.14.0-70.146.1.el9_0, kernel-devel-matched 5.14.0-70.146.1.el9_0, kernel-debug-devel-matched 5.14.0-70.146.1.el9_0, kernel-debuginfo-common-s390x 5.14.0-70.146.1.el9_0, kernel-zfcpdump-devel-matched 5.14.0-70.146.1.el9_0, kernel-debuginfo-common-x86_64 5.14.0-70.146.1.el9_0, +2 more
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:15670
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) perf 5.14.0-284.136.1.el9_2, rtla 5.14.0-284.136.1.el9_2, kernel-devel-matched 5.14.0-284.136.1.el9_2, kernel-64k-devel-matched 5.14.0-284.136.1.el9_2, kernel-debug-devel-matched 5.14.0-284.136.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.136.1.el9_2, +5 more
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:15227
  • Red Hat Enterprise Linux AppStream EUS (v.9.4) rv 5.14.0-427.88.1.el9_4, perf 5.14.0-427.88.1.el9_4, rtla 5.14.0-427.88.1.el9_4, kernel-devel-matched 5.14.0-427.88.1.el9_4, kernel-64k-devel-matched 5.14.0-427.88.1.el9_4, kernel-debug-devel-matched 5.14.0-427.88.1.el9_4, +6 more
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:15668
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.72.1.el8_10, kernel 4.18.0-553.72.1.el8_10, bpftool 4.18.0-553.72.1.el8_10, kernel-core 4.18.0-553.72.1.el8_10, kernel-tools 4.18.0-553.72.1.el8_10, python3-perf 4.18.0-553.72.1.el8_10, +15 more
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:15008
show 28 more
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-570.39.1.el9_6, kernel-64k 5.14.0-570.39.1.el9_6, kernel-core 5.14.0-570.39.1.el9_6, kernel-tools 5.14.0-570.39.1.el9_6, kernel-modules 5.14.0-570.39.1.el9_6, kernel-64k-core 5.14.0-570.39.1.el9_6, +27 more
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:15011
  • Red Hat Enterprise Linux BaseOS (v. 10) kernel 6.12.0-55.30.1.el10_0, kernel-64k 6.12.0-55.30.1.el10_0, kernel-core 6.12.0-55.30.1.el10_0, kernel-tools 6.12.0-55.30.1.el10_0, kernel-modules 6.12.0-55.30.1.el10_0, kernel-64k-core 6.12.0-55.30.1.el10_0, +27 more
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:15005
  • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) perf 4.18.0-193.168.1.el8_2, kernel 4.18.0-193.168.1.el8_2, bpftool 4.18.0-193.168.1.el8_2, kernel-core 4.18.0-193.168.1.el8_2, kernel-tools 4.18.0-193.168.1.el8_2, python3-perf 4.18.0-193.168.1.el8_2, +8 more
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:15656
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) perf 4.18.0-305.172.1.el8_4, kernel 4.18.0-305.172.1.el8_4, bpftool 4.18.0-305.172.1.el8_4, kernel-core 4.18.0-305.172.1.el8_4, kernel-tools 4.18.0-305.172.1.el8_4, python3-perf 4.18.0-305.172.1.el8_4, +8 more
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:15660
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) perf 4.18.0-372.160.1.el8_6, kernel 4.18.0-372.160.1.el8_6, bpftool 4.18.0-372.160.1.el8_6, kernel-core 4.18.0-372.160.1.el8_6, kernel-tools 4.18.0-372.160.1.el8_6, python3-perf 4.18.0-372.160.1.el8_6, +8 more Red Hat Enterprise Linux BaseOS E4S (v.8.6) perf 4.18.0-372.160.1.el8_6, kernel 4.18.0-372.160.1.el8_6, bpftool 4.18.0-372.160.1.el8_6, kernel-core 4.18.0-372.160.1.el8_6, kernel-tools 4.18.0-372.160.1.el8_6, python3-perf 4.18.0-372.160.1.el8_6, +15 more
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:15647
  • Red Hat Enterprise Linux BaseOS E4S (v.8.8) perf 4.18.0-477.108.1.el8_8, kernel 4.18.0-477.108.1.el8_8, bpftool 4.18.0-477.108.1.el8_8, kernel-core 4.18.0-477.108.1.el8_8, kernel-tools 4.18.0-477.108.1.el8_8, python3-perf 4.18.0-477.108.1.el8_8, +9 more
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:14985
  • Red Hat Enterprise Linux BaseOS E4S (v.9.0) kernel 5.14.0-70.146.1.el9_0, bpftool 5.14.0-70.146.1.el9_0, kernel-core 5.14.0-70.146.1.el9_0, kernel-tools 5.14.0-70.146.1.el9_0, python3-perf 5.14.0-70.146.1.el9_0, kernel-modules 5.14.0-70.146.1.el9_0, +14 more
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:15670
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool 7.0.0-284.136.1.el9_2, kernel 5.14.0-284.136.1.el9_2, kernel-64k 5.14.0-284.136.1.el9_2, kernel-core 5.14.0-284.136.1.el9_2, kernel-tools 5.14.0-284.136.1.el9_2, python3-perf 5.14.0-284.136.1.el9_2, +28 more
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:15227
  • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool 7.3.0-427.88.1.el9_4, kernel 5.14.0-427.88.1.el9_4, kernel-64k 5.14.0-427.88.1.el9_4, kernel-core 5.14.0-427.88.1.el9_4, kernel-tools 5.14.0-427.88.1.el9_4, python3-perf 5.14.0-427.88.1.el9_4, +28 more
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:15668
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) perf 4.18.0-305.172.1.el8_4, kernel 4.18.0-305.172.1.el8_4, bpftool 4.18.0-305.172.1.el8_4, kernel-core 4.18.0-305.172.1.el8_4, kernel-tools 4.18.0-305.172.1.el8_4, python3-perf 4.18.0-305.172.1.el8_4, +8 more
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:15660
  • Red Hat Enterprise Linux BaseOS TUS (v.8.6) perf 4.18.0-372.160.1.el8_6, kernel 4.18.0-372.160.1.el8_6, bpftool 4.18.0-372.160.1.el8_6, kernel-core 4.18.0-372.160.1.el8_6, kernel-tools 4.18.0-372.160.1.el8_6, python3-perf 4.18.0-372.160.1.el8_6, +8 more
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:15647
  • Red Hat Enterprise Linux BaseOS TUS (v.8.8) perf 4.18.0-477.108.1.el8_8, kernel 4.18.0-477.108.1.el8_8, bpftool 4.18.0-477.108.1.el8_8, kernel-core 4.18.0-477.108.1.el8_8, kernel-tools 4.18.0-477.108.1.el8_8, python3-perf 4.18.0-477.108.1.el8_8, +8 more
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:14985
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libperf 5.14.0-570.39.1.el9_6, kernel-debuginfo-common-s390x 5.14.0-570.39.1.el9_6, kernel-debuginfo-common-x86_64 5.14.0-570.39.1.el9_6, kernel-debuginfo-common-aarch64 5.14.0-570.39.1.el9_6, kernel-debuginfo-common-ppc64le 5.14.0-570.39.1.el9_6
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:15011
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libperf 6.12.0-55.30.1.el10_0, kernel-debuginfo-common-s390x 6.12.0-55.30.1.el10_0, kernel-debuginfo-common-x86_64 6.12.0-55.30.1.el10_0, kernel-debuginfo-common-aarch64 6.12.0-55.30.1.el10_0, kernel-debuginfo-common-ppc64le 6.12.0-55.30.1.el10_0
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:15005
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.72.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.72.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.72.1.el8_10
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:15008
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.72.1.rt7.413.el8_10, kernel-rt-kvm 4.18.0-553.72.1.rt7.413.el8_10, kernel-rt-core 4.18.0-553.72.1.rt7.413.el8_10, kernel-rt-modules 4.18.0-553.72.1.rt7.413.el8_10, kernel-rt-debug-kvm 4.18.0-553.72.1.rt7.413.el8_10, kernel-rt-debug-core 4.18.0-553.72.1.rt7.413.el8_10, +4 more
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:15009
  • Red Hat Enterprise Linux NFV E4S (v.9.0) kernel-rt 5.14.0-70.146.1.rt21.218.el9_0, kernel-rt-kvm 5.14.0-70.146.1.rt21.218.el9_0, kernel-rt-core 5.14.0-70.146.1.rt21.218.el9_0, kernel-rt-modules 5.14.0-70.146.1.rt21.218.el9_0, kernel-rt-debug-kvm 5.14.0-70.146.1.rt21.218.el9_0, kernel-rt-debug-core 5.14.0-70.146.1.rt21.218.el9_0, +4 more
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:15658
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-570.39.1.el9_6, kernel-rt-64k 5.14.0-570.39.1.el9_6, kernel-rt-core 5.14.0-570.39.1.el9_6, kernel-rt-modules 5.14.0-570.39.1.el9_6, kernel-rt-64k-core 5.14.0-570.39.1.el9_6, kernel-rt-debug-core 5.14.0-570.39.1.el9_6, +14 more
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:15011
  • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt 6.12.0-55.30.1.el10_0, kernel-rt-64k 6.12.0-55.30.1.el10_0, kernel-rt-core 6.12.0-55.30.1.el10_0, kernel-rt-modules 6.12.0-55.30.1.el10_0, kernel-rt-64k-core 6.12.0-55.30.1.el10_0, kernel-rt-debug-core 6.12.0-55.30.1.el10_0, +14 more
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:15005
  • Red Hat Enterprise Linux Real Time E4S (v.9.0) kernel-rt 5.14.0-70.146.1.rt21.218.el9_0, kernel-rt-core 5.14.0-70.146.1.rt21.218.el9_0, kernel-rt-modules 5.14.0-70.146.1.rt21.218.el9_0, kernel-rt-debug-core 5.14.0-70.146.1.rt21.218.el9_0, kernel-rt-debug-modules 5.14.0-70.146.1.rt21.218.el9_0, kernel-rt-modules-extra 5.14.0-70.146.1.rt21.218.el9_0, +2 more
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:15658
  • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt 5.14.0-284.136.1.rt14.421.el9_2, kernel-rt-core 5.14.0-284.136.1.rt14.421.el9_2, kernel-rt-modules 5.14.0-284.136.1.rt14.421.el9_2, kernel-rt-debug-core 5.14.0-284.136.1.rt14.421.el9_2, kernel-rt-modules-core 5.14.0-284.136.1.rt14.421.el9_2, kernel-rt-debug-modules 5.14.0-284.136.1.rt14.421.el9_2, +4 more
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:15224
  • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt 5.14.0-427.88.1.el9_4, kernel-rt-core 5.14.0-427.88.1.el9_4, kernel-rt-modules 5.14.0-427.88.1.el9_4, kernel-rt-debug-core 5.14.0-427.88.1.el9_4, kernel-rt-modules-core 5.14.0-427.88.1.el9_4, kernel-rt-debug-modules 5.14.0-427.88.1.el9_4, +4 more
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:15668
  • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-570.39.1.el9_6, kernel-rt-kvm 5.14.0-570.39.1.el9_6, kernel-rt-core 5.14.0-570.39.1.el9_6, kernel-rt-modules 5.14.0-570.39.1.el9_6, kernel-rt-debug-kvm 5.14.0-570.39.1.el9_6, kernel-rt-debug-core 5.14.0-570.39.1.el9_6, +6 more
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:15011
  • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt 6.12.0-55.30.1.el10_0, kernel-rt-kvm 6.12.0-55.30.1.el10_0, kernel-rt-core 6.12.0-55.30.1.el10_0, kernel-rt-modules 6.12.0-55.30.1.el10_0, kernel-rt-debug-kvm 6.12.0-55.30.1.el10_0, kernel-rt-debug-core 6.12.0-55.30.1.el10_0, +6 more
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:15005
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt 5.14.0-284.136.1.rt14.421.el9_2, kernel-rt-kvm 5.14.0-284.136.1.rt14.421.el9_2, kernel-rt-core 5.14.0-284.136.1.rt14.421.el9_2, kernel-rt-modules 5.14.0-284.136.1.rt14.421.el9_2, kernel-rt-debug-kvm 5.14.0-284.136.1.rt14.421.el9_2, kernel-rt-debug-core 5.14.0-284.136.1.rt14.421.el9_2, +6 more
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:15224
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt 5.14.0-427.88.1.el9_4, kernel-rt-kvm 5.14.0-427.88.1.el9_4, kernel-rt-core 5.14.0-427.88.1.el9_4, kernel-rt-modules 5.14.0-427.88.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.88.1.el9_4, kernel-rt-debug-core 5.14.0-427.88.1.el9_4, +6 more
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:15668
  • Red Hat Enterprise Linux RT (v. 8) kernel-rt 4.18.0-553.72.1.rt7.413.el8_10, kernel-rt-core 4.18.0-553.72.1.rt7.413.el8_10, kernel-rt-modules 4.18.0-553.72.1.rt7.413.el8_10, kernel-rt-debug-core 4.18.0-553.72.1.rt7.413.el8_10, kernel-rt-debug-modules 4.18.0-553.72.1.rt7.413.el8_10, kernel-rt-modules-extra 4.18.0-553.72.1.rt7.413.el8_10, +2 more
    fixed: vendor fix “To mitigate this issue, prevent module tipc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2025:15009
  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise Linux AppStream E4S (v.9.0) kernel-doc 5.14.0-70.146.1.el9_0 Red Hat Enterprise Linux AppStream EUS (v.9.4) kernel-doc 5.14.0-427.88.1.el9_4
    not affected: vulnerable code not present

8 more not affected in the full advisory

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
4 mo ago

Exploit prediction

0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Linux Linux

Classification

Weakness
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.