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Fencer Vulns
high 7.1

CVE-2025-39883 json

mm/memory-failure: fix VM_BUG_ON_PAGE(PagePoisoned(page)) when unpoison memory

published 2025-09-23 13 mo ago modified 2026-10-19 20 d ago also EUVD-2025-30845

cvss
7.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 4%
public exploits
0
none known

Summary

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

mm/memory-failure: fix VM_BUG_ON_PAGE(PagePoisoned(page)) when unpoison memory

When I did memory failure tests, below panic occurs:

page dumped because: VM_BUG_ON_PAGE(PagePoisoned(page)) kernel BUG at include/linux/page-flags.h:616! Oops: invalid opcode: 0000 [#1] PREEMPT SMP NOPTI CPU: 3 PID: 720 Comm: bash Not tainted 6.10.0-rc1-00195-g148743902568 #40 RIP: 0010:unpoison_memory+0x2f3/0x590 RSP: 0018:ffffa57fc8787d60 EFLAGS: 00000246 RAX: 0000000000000037 RBX: 0000000000000009 RCX: ffff9be25fcdc9c8 RDX: 0000000000000000 RSI: 0000000000000027 RDI: ffff9be25fcdc9c0 RBP: 0000000000300000 R08: ffffffffb4956f88 R09: 0000000000009ffb R10: 0000000000000284 R11: ffffffffb4926fa0 R12: ffffe6b00c000000 R13: ffff9bdb453dfd00 R14: 0000000000000000 R15: fffffffffffffffe FS: 00007f08f04e4740(0000) GS:ffff9be25fcc0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000564787a30410 CR3: 000000010d4e2000 CR4: 00000000000006f0 Call Trace: <TASK> unpoison_memory+0x2f3/0x590 simple_attr_write_xsigned.constprop.0.isra.0+0xb3/0x110 debugfs_attr_write+0x42/0x60 full_proxy_write+0x5b/0x80 vfs_write+0xd5/0x540 ksys_write+0x64/0xe0 do_syscall_64+0xb9/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f08f0314887 RSP: 002b:00007ffece710078 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f08f0314887 RDX: 0000000000000009 RSI: 0000564787a30410 RDI: 0000000000000001 RBP: 0000564787a30410 R08: 000000000000fefe R09: 000000007fffffff R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000009 R13: 00007f08f041b780 R14: 00007f08f0417600 R15: 00007f08f0416a00 </TASK> Modules linked in: hwpoison_inject ---[ end trace 0000000000000000 ]--- RIP: 0010:unpoison_memory+0x2f3/0x590 RSP: 0018:ffffa57fc8787d60 EFLAGS: 00000246 RAX: 0000000000000037 RBX: 0000000000000009 RCX: ffff9be25fcdc9c8 RDX: 0000000000000000 RSI: 0000000000000027 RDI: ffff9be25fcdc9c0 RBP: 0000000000300000 R08: ffffffffb4956f88 R09: 0000000000009ffb R10: 0000000000000284 R11: ffffffffb4926fa0 R12: ffffe6b00c000000 R13: ffff9bdb453dfd00 R14: 0000000000000000 R15: fffffffffffffffe FS: 00007f08f04e4740(0000) GS:ffff9be25fcc0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000564787a30410 CR3: 000000010d4e2000 CR4: 00000000000006f0 Kernel panic - not syncing: Fatal exception Kernel Offset: 0x31c00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) ---[ end Kernel panic - not syncing: Fatal exception ]---

The root cause is that unpoison_memory() tries to check the PG_HWPoison flags of an uninitialized page. So VM_BUG_ON_PAGE(PagePoisoned(page)) is triggered. This can be reproduced by below steps:

1.Offline memory block:

echo offline > /sys/devices/system/memory/memory12/state

2.Get offlined memory pfn:

page-types -b n -rlN

3.Write pfn to unpoison-pfn

echo <pfn> > /sys/kernel/debug/hwpoison/unpoison-pfn

This scenario can be identified by pfn_to_online_page() returning NULL. And ZONE_DEVICE pages are never expected, so we can simply fail if pfn_to_online_page() == NULL to fix the bug.

Patch / fix

  • Linux Linux 5.4.300, 5.10.245, 5.15.194, 6.1.153, 6.6.107, 6.12.48, 6.16.8, 6.17
  • linux Debian 12 6.1.153-1
  • linux Debian 13 6.12.48-1
  • linux Debian 14 6.16.8-1

debian advisories DEBIAN-CVE-2025-39883

  • linux Ubuntu 22.04 LTS 5.15.0-170.180
  • linux Ubuntu 24.04 LTS 6.8.0-106.106
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1100.107
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1050.53
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1100.109
  • linux-gcp Ubuntu 24.04 LTS 6.8.0-1052.55
  • linux-gke Ubuntu 22.04 LTS 5.15.0-1096.102
  • linux-gke Ubuntu 24.04 LTS 6.8.0-1048.53

ubuntu advisories UBUNTU-CVE-2025-39883

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 5.14.0-611.20.1.el9_7
  • rv RHEL 9 5.14.0-611.20.1.el9_7
  • perf RHEL 9 5.14.0-611.20.1.el9_7
  • rtla RHEL 9 5.14.0-611.20.1.el9_7
  • libperf RHEL 9 5.14.0-611.20.1.el9_7
  • kernel-rt RHEL 9 5.14.0-611.20.1.el9_7
  • kernel-64k RHEL 9 5.14.0-611.20.1.el9_7
  • kernel-core RHEL 9 5.14.0-611.20.1.el9_7

red hat advisories RHSA-2026:0533RHSA-2026:0445RHSA-2026:0271RHSA-2025:23445RHSA-2025:22999RHSA-2025:22997

  • kernel AlmaLinux 9 5.14.0-611.20.1.el9_7
  • rv AlmaLinux 9 5.14.0-611.20.1.el9_7
  • perf AlmaLinux 9 5.14.0-611.20.1.el9_7
  • rtla AlmaLinux 9 5.14.0-611.20.1.el9_7
  • libperf AlmaLinux 9 5.14.0-611.20.1.el9_7
  • kernel-rt AlmaLinux 9 5.14.0-611.20.1.el9_7
  • kernel-64k AlmaLinux 9 5.14.0-611.20.1.el9_7
  • kernel-core AlmaLinux 9 5.14.0-611.20.1.el9_7

almalinux advisories ALSA-2026:0445ALSA-2025:22387ALSA-2025:22388ALSA-2025:22395

  • kernel Rocky Linux 9 5.14.0-611.20.1.el9_7
  • kernel Rocky Linux 10 6.12.0-124.16.1.el10_1
  • kernel-rt Rocky Linux 8 4.18.0-553.87.1.rt7.428.el8_10
  • kernel Rocky Linux 8 4.18.0-553.87.1.el8_10

rocky linux advisories RLSA-2026:0445RLSA-2025:22395RLSA-2025:22387RLSA-2025:22388

  • kernel Azure Linux 3.0 6.6.112.1-1
  • kernel CBL-Mariner 2.0 5.15.200.1-1

azure linux advisories AZL-67656AZL-74739

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-2025-39883 updated cvss 7.0

kernel: mm/memory-failure: fix VM_BUG_ON_PAGE(PagePoisoned(page)) when unpoison memory

  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more
    affected: workaround, no fix planned “Out of support scope”
  • 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
  • Red Hat CodeReady Linux Builder EUS (v.9.4) libperf 5.14.0-427.102.1.el9_4, kernel-debuginfo-common-s390x 5.14.0-427.102.1.el9_4, kernel-debuginfo-common-x86_64 5.14.0-427.102.1.el9_4, kernel-debuginfo-common-aarch64 5.14.0-427.102.1.el9_4, kernel-debuginfo-common-ppc64le 5.14.0-427.102.1.el9_4
    fixed: vendor fix RHSA-2025:22661
  • Red Hat CodeReady Linux Builder EUS (v.9.6) libperf 5.14.0-570.69.1.el9_6, kernel-debuginfo-common-s390x 5.14.0-570.69.1.el9_6, kernel-debuginfo-common-x86_64 5.14.0-570.69.1.el9_6, kernel-debuginfo-common-aarch64 5.14.0-570.69.1.el9_6, kernel-debuginfo-common-ppc64le 5.14.0-570.69.1.el9_6
    fixed: vendor fix RHSA-2025:22392
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-611.20.1.el9_7, perf 5.14.0-611.20.1.el9_7, rtla 5.14.0-611.20.1.el9_7, python3-perf 5.14.0-611.20.1.el9_7, kernel-devel-matched 5.14.0-611.20.1.el9_7, kernel-64k-devel-matched 5.14.0-611.20.1.el9_7, +7 more
    fixed: vendor fix RHSA-2026:0445
  • Red Hat Enterprise Linux AppStream (v. 10) rv 6.12.0-124.16.1.el10_1, perf 6.12.0-124.16.1.el10_1, rtla 6.12.0-124.16.1.el10_1, python3-perf 6.12.0-124.16.1.el10_1, kernel-devel-matched 6.12.0-124.16.1.el10_1, kernel-64k-devel-matched 6.12.0-124.16.1.el10_1, +7 more
    fixed: vendor fix RHSA-2025:22395
  • Red Hat Enterprise Linux AppStream E4S (v.9.0) perf 5.14.0-70.157.1.el9_0, kernel-devel-matched 5.14.0-70.157.1.el9_0, kernel-debug-devel-matched 5.14.0-70.157.1.el9_0, kernel-debuginfo-common-s390x 5.14.0-70.157.1.el9_0, kernel-zfcpdump-devel-matched 5.14.0-70.157.1.el9_0, kernel-debuginfo-common-x86_64 5.14.0-70.157.1.el9_0, +2 more
    fixed: vendor fix RHSA-2025:22999
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) perf 5.14.0-284.149.1.el9_2, rtla 5.14.0-284.149.1.el9_2, kernel-devel-matched 5.14.0-284.149.1.el9_2, kernel-64k-devel-matched 5.14.0-284.149.1.el9_2, kernel-debug-devel-matched 5.14.0-284.149.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.149.1.el9_2, +5 more
    fixed: vendor fix RHSA-2025:22996
show 31 more
  • Red Hat Enterprise Linux AppStream EUS (v. 10.0) kernel-devel-matched 6.12.0-55.52.1.el10_0, kernel-64k-devel-matched 6.12.0-55.52.1.el10_0, kernel-debug-devel-matched 6.12.0-55.52.1.el10_0, kernel-debuginfo-common-s390x 6.12.0-55.52.1.el10_0, kernel-zfcpdump-devel-matched 6.12.0-55.52.1.el10_0, kernel-64k-debug-devel-matched 6.12.0-55.52.1.el10_0, +3 more
    fixed: vendor fix RHSA-2026:0271
  • Red Hat Enterprise Linux AppStream EUS (v.9.4) rv 5.14.0-427.102.1.el9_4, perf 5.14.0-427.102.1.el9_4, rtla 5.14.0-427.102.1.el9_4, kernel-devel-matched 5.14.0-427.102.1.el9_4, kernel-64k-devel-matched 5.14.0-427.102.1.el9_4, kernel-debug-devel-matched 5.14.0-427.102.1.el9_4, +6 more
    fixed: vendor fix RHSA-2025:22661
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) rv 5.14.0-570.69.1.el9_6, perf 5.14.0-570.69.1.el9_6, rtla 5.14.0-570.69.1.el9_6, python3-perf 5.14.0-570.69.1.el9_6, kernel-devel-matched 5.14.0-570.69.1.el9_6, kernel-64k-devel-matched 5.14.0-570.69.1.el9_6, +7 more
    fixed: vendor fix RHSA-2025:22392
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.87.1.el8_10, kernel 4.18.0-553.87.1.el8_10, bpftool 4.18.0-553.87.1.el8_10, kernel-core 4.18.0-553.87.1.el8_10, kernel-tools 4.18.0-553.87.1.el8_10, python3-perf 4.18.0-553.87.1.el8_10, +15 more
    fixed: vendor fix RHSA-2025:22388
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-611.20.1.el9_7, kernel-64k 5.14.0-611.20.1.el9_7, kernel-core 5.14.0-611.20.1.el9_7, kernel-tools 5.14.0-611.20.1.el9_7, kernel-modules 5.14.0-611.20.1.el9_7, kernel-64k-core 5.14.0-611.20.1.el9_7, +27 more
    fixed: vendor fix RHSA-2026:0445
  • Red Hat Enterprise Linux BaseOS (v. 10) kernel 6.12.0-124.16.1.el10_1, kernel-64k 6.12.0-124.16.1.el10_1, kernel-core 6.12.0-124.16.1.el10_1, kernel-tools 6.12.0-124.16.1.el10_1, kernel-modules 6.12.0-124.16.1.el10_1, kernel-64k-core 6.12.0-124.16.1.el10_1, +28 more
    fixed: vendor fix RHSA-2025:22395
  • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) perf 4.18.0-193.178.1.el8_2, kernel 4.18.0-193.178.1.el8_2, bpftool 4.18.0-193.178.1.el8_2, kernel-core 4.18.0-193.178.1.el8_2, kernel-tools 4.18.0-193.178.1.el8_2, python3-perf 4.18.0-193.178.1.el8_2, +8 more
    fixed: vendor fix RHSA-2025:23445
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) perf 4.18.0-305.183.1.el8_4, kernel 4.18.0-305.183.1.el8_4, bpftool 4.18.0-305.183.1.el8_4, kernel-core 4.18.0-305.183.1.el8_4, kernel-tools 4.18.0-305.183.1.el8_4, python3-perf 4.18.0-305.183.1.el8_4, +8 more
    fixed: vendor fix RHSA-2026:0533
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) perf 4.18.0-372.170.1.el8_6, kernel 4.18.0-372.170.1.el8_6, bpftool 4.18.0-372.170.1.el8_6, kernel-core 4.18.0-372.170.1.el8_6, kernel-tools 4.18.0-372.170.1.el8_6, python3-perf 4.18.0-372.170.1.el8_6, +8 more Red Hat Enterprise Linux BaseOS E4S (v.8.6) perf 4.18.0-372.170.1.el8_6, kernel 4.18.0-372.170.1.el8_6, bpftool 4.18.0-372.170.1.el8_6, kernel-core 4.18.0-372.170.1.el8_6, kernel-tools 4.18.0-372.170.1.el8_6, python3-perf 4.18.0-372.170.1.el8_6, +15 more
    fixed: vendor fix RHSA-2025:22006
  • Red Hat Enterprise Linux BaseOS E4S (v.8.8) perf 4.18.0-477.120.1.el8_8, kernel 4.18.0-477.120.1.el8_8, bpftool 4.18.0-477.120.1.el8_8, kernel-core 4.18.0-477.120.1.el8_8, kernel-tools 4.18.0-477.120.1.el8_8, python3-perf 4.18.0-477.120.1.el8_8, +9 more
    fixed: vendor fix RHSA-2025:22072
  • Red Hat Enterprise Linux BaseOS E4S (v.9.0) kernel 5.14.0-70.157.1.el9_0, bpftool 5.14.0-70.157.1.el9_0, kernel-core 5.14.0-70.157.1.el9_0, kernel-tools 5.14.0-70.157.1.el9_0, python3-perf 5.14.0-70.157.1.el9_0, kernel-modules 5.14.0-70.157.1.el9_0, +14 more
    fixed: vendor fix RHSA-2025:22999
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool 7.0.0-284.149.1.el9_2, kernel 5.14.0-284.149.1.el9_2, kernel-64k 5.14.0-284.149.1.el9_2, kernel-core 5.14.0-284.149.1.el9_2, kernel-tools 5.14.0-284.149.1.el9_2, python3-perf 5.14.0-284.149.1.el9_2, +28 more
    fixed: vendor fix RHSA-2025:22996
  • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) kernel 6.12.0-55.52.1.el10_0, kernel-64k 6.12.0-55.52.1.el10_0, kernel-core 6.12.0-55.52.1.el10_0, kernel-tools 6.12.0-55.52.1.el10_0, kernel-modules 6.12.0-55.52.1.el10_0, kernel-64k-core 6.12.0-55.52.1.el10_0, +27 more
    fixed: vendor fix RHSA-2026:0271
  • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool 7.3.0-427.102.1.el9_4, kernel 5.14.0-427.102.1.el9_4, kernel-64k 5.14.0-427.102.1.el9_4, kernel-core 5.14.0-427.102.1.el9_4, kernel-tools 5.14.0-427.102.1.el9_4, python3-perf 5.14.0-427.102.1.el9_4, +28 more
    fixed: vendor fix RHSA-2025:22661
  • Red Hat Enterprise Linux BaseOS EUS (v.9.6) kernel 5.14.0-570.69.1.el9_6, kernel-64k 5.14.0-570.69.1.el9_6, kernel-core 5.14.0-570.69.1.el9_6, kernel-tools 5.14.0-570.69.1.el9_6, kernel-modules 5.14.0-570.69.1.el9_6, kernel-64k-core 5.14.0-570.69.1.el9_6, +27 more
    fixed: vendor fix RHSA-2025:22392
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) perf 4.18.0-305.183.1.el8_4, kernel 4.18.0-305.183.1.el8_4, bpftool 4.18.0-305.183.1.el8_4, kernel-core 4.18.0-305.183.1.el8_4, kernel-tools 4.18.0-305.183.1.el8_4, python3-perf 4.18.0-305.183.1.el8_4, +8 more
    fixed: vendor fix RHSA-2026:0533
  • Red Hat Enterprise Linux BaseOS TUS (v.8.6) perf 4.18.0-372.170.1.el8_6, kernel 4.18.0-372.170.1.el8_6, bpftool 4.18.0-372.170.1.el8_6, kernel-core 4.18.0-372.170.1.el8_6, kernel-tools 4.18.0-372.170.1.el8_6, python3-perf 4.18.0-372.170.1.el8_6, +8 more
    fixed: vendor fix RHSA-2025:22006
  • Red Hat Enterprise Linux BaseOS TUS (v.8.8) perf 4.18.0-477.120.1.el8_8, kernel 4.18.0-477.120.1.el8_8, bpftool 4.18.0-477.120.1.el8_8, kernel-core 4.18.0-477.120.1.el8_8, kernel-tools 4.18.0-477.120.1.el8_8, python3-perf 4.18.0-477.120.1.el8_8, +8 more
    fixed: vendor fix RHSA-2025:22072
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libperf 5.14.0-611.20.1.el9_7, kernel-debuginfo-common-s390x 5.14.0-611.20.1.el9_7, kernel-debuginfo-common-x86_64 5.14.0-611.20.1.el9_7, kernel-debuginfo-common-aarch64 5.14.0-611.20.1.el9_7, kernel-debuginfo-common-ppc64le 5.14.0-611.20.1.el9_7
    fixed: vendor fix RHSA-2026:0445
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libperf 6.12.0-124.16.1.el10_1, kernel-debuginfo-common-s390x 6.12.0-124.16.1.el10_1, kernel-debuginfo-common-x86_64 6.12.0-124.16.1.el10_1, kernel-debuginfo-common-aarch64 6.12.0-124.16.1.el10_1, kernel-debuginfo-common-ppc64le 6.12.0-124.16.1.el10_1
    fixed: vendor fix RHSA-2025:22395
  • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) kernel-debuginfo-common-s390x 6.12.0-55.52.1.el10_0, kernel-debuginfo-common-x86_64 6.12.0-55.52.1.el10_0, kernel-debuginfo-common-aarch64 6.12.0-55.52.1.el10_0, kernel-debuginfo-common-ppc64le 6.12.0-55.52.1.el10_0
    fixed: vendor fix RHSA-2026:0271
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.87.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.87.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.87.1.el8_10
    fixed: vendor fix RHSA-2025:22388
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.87.1.rt7.428.el8_10, kernel-rt-kvm 4.18.0-553.87.1.rt7.428.el8_10, kernel-rt-core 4.18.0-553.87.1.rt7.428.el8_10, kernel-rt-modules 4.18.0-553.87.1.rt7.428.el8_10, kernel-rt-debug-kvm 4.18.0-553.87.1.rt7.428.el8_10, kernel-rt-debug-core 4.18.0-553.87.1.rt7.428.el8_10, +4 more
    fixed: vendor fix RHSA-2025:22387
  • Red Hat Enterprise Linux NFV E4S (v.9.0) kernel-rt 5.14.0-70.157.1.rt21.229.el9_0, kernel-rt-kvm 5.14.0-70.157.1.rt21.229.el9_0, kernel-rt-core 5.14.0-70.157.1.rt21.229.el9_0, kernel-rt-modules 5.14.0-70.157.1.rt21.229.el9_0, kernel-rt-debug-kvm 5.14.0-70.157.1.rt21.229.el9_0, kernel-rt-debug-core 5.14.0-70.157.1.rt21.229.el9_0, +4 more
    fixed: vendor fix RHSA-2025:22997
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-611.20.1.el9_7, kernel-rt-64k 5.14.0-611.20.1.el9_7, kernel-rt-core 5.14.0-611.20.1.el9_7, kernel-rt-modules 5.14.0-611.20.1.el9_7, kernel-rt-64k-core 5.14.0-611.20.1.el9_7, kernel-rt-debug-core 5.14.0-611.20.1.el9_7, +14 more
    fixed: vendor fix RHSA-2026:0445
  • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt 6.12.0-124.16.1.el10_1, kernel-rt-64k 6.12.0-124.16.1.el10_1, kernel-rt-core 6.12.0-124.16.1.el10_1, kernel-rt-modules 6.12.0-124.16.1.el10_1, kernel-rt-64k-core 6.12.0-124.16.1.el10_1, kernel-rt-debug-core 6.12.0-124.16.1.el10_1, +14 more
    fixed: vendor fix RHSA-2025:22395
  • Red Hat Enterprise Linux Real Time E4S (v.9.0) kernel-rt 5.14.0-70.157.1.rt21.229.el9_0, kernel-rt-core 5.14.0-70.157.1.rt21.229.el9_0, kernel-rt-modules 5.14.0-70.157.1.rt21.229.el9_0, kernel-rt-debug-core 5.14.0-70.157.1.rt21.229.el9_0, kernel-rt-debug-modules 5.14.0-70.157.1.rt21.229.el9_0, kernel-rt-modules-extra 5.14.0-70.157.1.rt21.229.el9_0, +2 more
    fixed: vendor fix RHSA-2025:22997
  • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt 5.14.0-284.149.1.rt14.434.el9_2, kernel-rt-core 5.14.0-284.149.1.rt14.434.el9_2, kernel-rt-modules 5.14.0-284.149.1.rt14.434.el9_2, kernel-rt-debug-core 5.14.0-284.149.1.rt14.434.el9_2, kernel-rt-modules-core 5.14.0-284.149.1.rt14.434.el9_2, kernel-rt-debug-modules 5.14.0-284.149.1.rt14.434.el9_2, +4 more
    fixed: vendor fix RHSA-2025:22995
  • Red Hat Enterprise Linux Real Time EUS (v. 10.0) kernel-rt 6.12.0-55.52.1.el10_0, kernel-rt-64k 6.12.0-55.52.1.el10_0, kernel-rt-core 6.12.0-55.52.1.el10_0, kernel-rt-modules 6.12.0-55.52.1.el10_0, kernel-rt-64k-core 6.12.0-55.52.1.el10_0, kernel-rt-debug-core 6.12.0-55.52.1.el10_0, +14 more
    fixed: vendor fix RHSA-2026:0271
  • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt 5.14.0-427.102.1.el9_4, kernel-rt-core 5.14.0-427.102.1.el9_4, kernel-rt-modules 5.14.0-427.102.1.el9_4, kernel-rt-debug-core 5.14.0-427.102.1.el9_4, kernel-rt-modules-core 5.14.0-427.102.1.el9_4, kernel-rt-debug-modules 5.14.0-427.102.1.el9_4, +4 more
    fixed: vendor fix RHSA-2025:22661
  • Red Hat Enterprise Linux Real Time EUS (v.9.6) kernel-rt 5.14.0-570.69.1.el9_6, kernel-rt-64k 5.14.0-570.69.1.el9_6, kernel-rt-core 5.14.0-570.69.1.el9_6, kernel-rt-modules 5.14.0-570.69.1.el9_6, kernel-rt-64k-core 5.14.0-570.69.1.el9_6, kernel-rt-debug-core 5.14.0-570.69.1.el9_6, +14 more
    fixed: vendor fix RHSA-2025:22392

7 more fixed, 6 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
partial
Assessed
4 mo ago

Exploit prediction

0.16% chance of exploitation in the next 30 days, higher than 4% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/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.