Skip to content
Fencer Vulns
high 7.8

CVE-2025-38129 json

page_pool: Fix use-after-free in page_pool_recycle_in_ring

published 2025-07-03 16 mo ago modified 2026-08-05 3 mo ago also EUVD-2025-19814

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 9%
public exploits
0
none known

Summary

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

page_pool: Fix use-after-free in page_pool_recycle_in_ring

syzbot reported a uaf in page_pool_recycle_in_ring:

BUG: KASAN: slab-use-after-free in lock_release+0x151/0xa30 kernel/locking/lockdep.c:5862 Read of size 8 at addr ffff8880286045a0 by task syz.0.284/6943

CPU: 0 UID: 0 PID: 6943 Comm: syz.0.284 Not tainted 6.13.0-rc3-syzkaller-gdfa94ce54f41 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: <TASK> __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0x169/0x550 mm/kasan/report.c:489 kasan_report+0x143/0x180 mm/kasan/report.c:602 lock_release+0x151/0xa30 kernel/locking/lockdep.c:5862 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:165 [inline] _raw_spin_unlock_bh+0x1b/0x40 kernel/locking/spinlock.c:210 spin_unlock_bh include/linux/spinlock.h:396 [inline] ptr_ring_produce_bh include/linux/ptr_ring.h:164 [inline] page_pool_recycle_in_ring net/core/page_pool.c:707 [inline] page_pool_put_unrefed_netmem+0x748/0xb00 net/core/page_pool.c:826 page_pool_put_netmem include/net/page_pool/helpers.h:323 [inline] page_pool_put_full_netmem include/net/page_pool/helpers.h:353 [inline] napi_pp_put_page+0x149/0x2b0 net/core/skbuff.c:1036 skb_pp_recycle net/core/skbuff.c:1047 [inline] skb_free_head net/core/skbuff.c:1094 [inline] skb_release_data+0x6c4/0x8a0 net/core/skbuff.c:1125 skb_release_all net/core/skbuff.c:1190 [inline] __kfree_skb net/core/skbuff.c:1204 [inline] sk_skb_reason_drop+0x1c9/0x380 net/core/skbuff.c:1242 kfree_skb_reason include/linux/skbuff.h:1263 [inline] __skb_queue_purge_reason include/linux/skbuff.h:3343 [inline]

root cause is:

page_pool_recycle_in_ring ptr_ring_produce spin_lock(&r->producer_lock); WRITE_ONCE(r->queue[r->producer++], ptr) //recycle last page to pool page_pool_release page_pool_scrub page_pool_empty_ring ptr_ring_consume page_pool_return_page //release all page __page_pool_destroy free_percpu(pool->recycle_stats); free(pool) //free

spin_unlock(&r->producer_lock); //pool->ring uaf read recycle_stat_inc(pool, ring);

page_pool can be free while page pool recycle the last page in ring. Add producer-lock barrier to page_pool_release to prevent the page pool from being free before all pages have been recycled.

recycle_stat_inc() is empty when CONFIG_PAGE_POOL_STATS is not enabled, which will trigger Wempty-body build warning. Add definition for pool stat macro to fix warning.

Patch / fix

  • Linux Linux 5.10.259, 5.15.198, 6.1.160, 6.6.120, 6.12.34, 6.15.3, 6.16
  • linux Debian 12 6.1.162-1
  • linux Debian 14, Debian 13 6.12.35-1

debian advisories DEBIAN-CVE-2025-38129

  • linux Ubuntu 22.04 LTS 5.15.0-173.183
  • linux Ubuntu 24.04 LTS 6.8.0-100.100
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1103.110
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1046.49
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1103.112
  • linux-gcp Ubuntu 24.04 LTS 6.8.0-1047.50
  • linux-gke Ubuntu 22.04 LTS 5.15.0-1099.105
  • linux-gke Ubuntu 24.04 LTS 6.8.0-1043.48

ubuntu advisories UBUNTU-CVE-2025-38129

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-rt RHEL 8 4.18.0-553.107.1.rt7.448.el8_10
  • kernel-rt-kvm RHEL 8 4.18.0-553.107.1.rt7.448.el8_10
  • kernel-rt-core RHEL 8 4.18.0-553.107.1.rt7.448.el8_10
  • kernel-rt-modules RHEL 8 4.18.0-553.107.1.rt7.448.el8_10
  • kernel-rt-debug-kvm RHEL 8 4.18.0-553.107.1.rt7.448.el8_10
  • kernel-rt-debug-core RHEL 8 4.18.0-553.107.1.rt7.448.el8_10
  • kernel-rt-debug-modules RHEL 8 4.18.0-553.107.1.rt7.448.el8_10
  • kernel-rt-modules-extra RHEL 8 4.18.0-553.107.1.rt7.448.el8_10

red hat advisories RHSA-2026:5821RHSA-2026:5813RHSA-2026:5690RHSA-2026:4444RHSA-2026:4246RHSA-2026:4244

  • kernel-livepatch-MICRO-6-0-RT_Update_5 Linux Micro 6.1, Linux Micro 6.0 15-1.1
  • kernel-livepatch-MICRO-6-0_Update_6 Linux Micro 6.1, Linux Micro 6.0 14-3.1
  • kernel-livepatch-MICRO-6-0_Update_7 Linux Micro 6.1, Linux Micro 6.0 13-1.2
  • kernel-livepatch-MICRO-6-0-RT_Update_8 Linux Micro 6.1, Linux Micro 6.0 12-1.2
  • kernel-livepatch-MICRO-6-0_Update_5 Linux Micro 6.1, Linux Micro 6.0 16-1.2
  • kernel-livepatch-MICRO-6-0-RT_Update_7 Linux Micro 6.1, Linux Micro 6.0 13-1.3
  • kernel-livepatch-MICRO-6-0-RT_Update_6 Linux Micro 6.1, Linux Micro 6.0 13-3.1
  • kernel-64kb SLES 15 SP4-LTSS, SLE High Performance Computing 15 SP4-LTSS, SLE High Performance Computing 15 SP4-ESPOS 5.14.21-150400.24.194.1

suse advisories SUSE-SU-2026:20681-1SUSE-SU-2026:20705-1SUSE-SU-2026:20673-1SUSE-SU-2026:20674-1SUSE-SU-2026:20703-1SUSE-SU-2026:20704-1

  • 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 AlmaLinux 9 5.14.0-611.35.1.el9_7
  • rv AlmaLinux 9 5.14.0-611.35.1.el9_7
  • perf AlmaLinux 9 5.14.0-611.35.1.el9_7
  • rtla AlmaLinux 9 5.14.0-611.35.1.el9_7
  • libperf AlmaLinux 9 5.14.0-611.35.1.el9_7
  • kernel-rt AlmaLinux 9 5.14.0-611.35.1.el9_7
  • kernel-64k AlmaLinux 9 5.14.0-611.35.1.el9_7
  • kernel-core AlmaLinux 9 5.14.0-611.35.1.el9_7

almalinux advisories ALSA-2026:3066ALSA-2026:3083ALSA-2026:3110

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-2025-38129 updated cvss 7.3

kernel: Linux kernel: Use-after-free vulnerability in page_pool_recycle_in_ring can lead to arbitrary code execution

  • 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 Red Hat Enterprise Linux 10 kernel
    affected: no fix available
  • Red Hat CodeReady Linux Builder EUS (v.9.4) libperf 5.14.0-427.114.1.el9_4, kernel-debuginfo-common-s390x 5.14.0-427.114.1.el9_4, kernel-debuginfo-common-x86_64 5.14.0-427.114.1.el9_4, kernel-debuginfo-common-aarch64 5.14.0-427.114.1.el9_4, kernel-debuginfo-common-ppc64le 5.14.0-427.114.1.el9_4
    fixed: vendor fix RHSA-2026:4246
  • Red Hat CodeReady Linux Builder EUS (v.9.6) libperf 5.14.0-570.96.1.el9_6, kernel-debuginfo-common-s390x 5.14.0-570.96.1.el9_6, kernel-debuginfo-common-x86_64 5.14.0-570.96.1.el9_6, kernel-debuginfo-common-aarch64 5.14.0-570.96.1.el9_6, kernel-debuginfo-common-ppc64le 5.14.0-570.96.1.el9_6
    fixed: vendor fix RHSA-2026:4011
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-611.35.1.el9_7, perf 5.14.0-611.35.1.el9_7, rtla 5.14.0-611.35.1.el9_7, python3-perf 5.14.0-611.35.1.el9_7, kernel-devel-matched 5.14.0-611.35.1.el9_7, kernel-64k-devel-matched 5.14.0-611.35.1.el9_7, +7 more
    fixed: vendor fix RHSA-2026:3066
  • Red Hat Enterprise Linux AppStream E4S (v.9.0) perf 5.14.0-70.169.1.el9_0, kernel-devel-matched 5.14.0-70.169.1.el9_0, kernel-debug-devel-matched 5.14.0-70.169.1.el9_0, kernel-debuginfo-common-s390x 5.14.0-70.169.1.el9_0, kernel-zfcpdump-devel-matched 5.14.0-70.169.1.el9_0, kernel-debuginfo-common-x86_64 5.14.0-70.169.1.el9_0, +2 more
    fixed: vendor fix RHSA-2026:4245
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) perf 5.14.0-284.161.1.el9_2, rtla 5.14.0-284.161.1.el9_2, kernel-devel-matched 5.14.0-284.161.1.el9_2, kernel-64k-devel-matched 5.14.0-284.161.1.el9_2, kernel-debug-devel-matched 5.14.0-284.161.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.161.1.el9_2, +5 more
    fixed: vendor fix RHSA-2026:5813
  • Red Hat Enterprise Linux AppStream EUS (v. 10.0) rv 6.12.0-55.63.1.el10_0, perf 6.12.0-55.63.1.el10_0, rtla 6.12.0-55.63.1.el10_0, python3-perf 6.12.0-55.63.1.el10_0, kernel-devel-matched 6.12.0-55.63.1.el10_0, kernel-64k-devel-matched 6.12.0-55.63.1.el10_0, +7 more
    fixed: vendor fix RHSA-2026:4111
  • Red Hat Enterprise Linux AppStream EUS (v.9.4) rv 5.14.0-427.114.1.el9_4, perf 5.14.0-427.114.1.el9_4, rtla 5.14.0-427.114.1.el9_4, kernel-devel-matched 5.14.0-427.114.1.el9_4, kernel-64k-devel-matched 5.14.0-427.114.1.el9_4, kernel-debug-devel-matched 5.14.0-427.114.1.el9_4, +6 more
    fixed: vendor fix RHSA-2026:4246
show 30 more
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) rv 5.14.0-570.96.1.el9_6, perf 5.14.0-570.96.1.el9_6, rtla 5.14.0-570.96.1.el9_6, python3-perf 5.14.0-570.96.1.el9_6, kernel-devel-matched 5.14.0-570.96.1.el9_6, kernel-64k-devel-matched 5.14.0-570.96.1.el9_6, +7 more
    fixed: vendor fix RHSA-2026:4011
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.107.1.el8_10, kernel 4.18.0-553.107.1.el8_10, bpftool 4.18.0-553.107.1.el8_10, kernel-core 4.18.0-553.107.1.el8_10, kernel-tools 4.18.0-553.107.1.el8_10, python3-perf 4.18.0-553.107.1.el8_10, +15 more
    fixed: vendor fix RHSA-2026:3083
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-611.35.1.el9_7, kernel-64k 5.14.0-611.35.1.el9_7, kernel-core 5.14.0-611.35.1.el9_7, kernel-tools 5.14.0-611.35.1.el9_7, kernel-modules 5.14.0-611.35.1.el9_7, kernel-64k-core 5.14.0-611.35.1.el9_7, +27 more
    fixed: vendor fix RHSA-2026:3066
  • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) perf 4.18.0-193.189.1.el8_2, kernel 4.18.0-193.189.1.el8_2, bpftool 4.18.0-193.189.1.el8_2, kernel-core 4.18.0-193.189.1.el8_2, kernel-tools 4.18.0-193.189.1.el8_2, python3-perf 4.18.0-193.189.1.el8_2, +8 more
    fixed: vendor fix RHSA-2026:4444
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) perf 4.18.0-305.187.1.el8_4, kernel 4.18.0-305.187.1.el8_4, bpftool 4.18.0-305.187.1.el8_4, kernel-core 4.18.0-305.187.1.el8_4, kernel-tools 4.18.0-305.187.1.el8_4, python3-perf 4.18.0-305.187.1.el8_4, +8 more
    fixed: vendor fix RHSA-2026:5821
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) perf 4.18.0-372.183.1.el8_6, kernel 4.18.0-372.183.1.el8_6, bpftool 4.18.0-372.183.1.el8_6, kernel-core 4.18.0-372.183.1.el8_6, kernel-tools 4.18.0-372.183.1.el8_6, python3-perf 4.18.0-372.183.1.el8_6, +8 more Red Hat Enterprise Linux BaseOS E4S (v.8.6) perf 4.18.0-372.183.1.el8_6, kernel 4.18.0-372.183.1.el8_6, bpftool 4.18.0-372.183.1.el8_6, kernel-core 4.18.0-372.183.1.el8_6, kernel-tools 4.18.0-372.183.1.el8_6, python3-perf 4.18.0-372.183.1.el8_6, +15 more
    fixed: vendor fix RHSA-2026:4243
  • Red Hat Enterprise Linux BaseOS E4S (v.8.8) perf 4.18.0-477.132.1.el8_8, kernel 4.18.0-477.132.1.el8_8, bpftool 4.18.0-477.132.1.el8_8, kernel-core 4.18.0-477.132.1.el8_8, kernel-tools 4.18.0-477.132.1.el8_8, python3-perf 4.18.0-477.132.1.el8_8, +9 more
    fixed: vendor fix RHSA-2026:4242
  • Red Hat Enterprise Linux BaseOS E4S (v.9.0) kernel 5.14.0-70.169.1.el9_0, bpftool 5.14.0-70.169.1.el9_0, kernel-core 5.14.0-70.169.1.el9_0, kernel-tools 5.14.0-70.169.1.el9_0, python3-perf 5.14.0-70.169.1.el9_0, kernel-modules 5.14.0-70.169.1.el9_0, +14 more
    fixed: vendor fix RHSA-2026:4245
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool 7.0.0-284.161.1.el9_2, kernel 5.14.0-284.161.1.el9_2, kernel-64k 5.14.0-284.161.1.el9_2, kernel-core 5.14.0-284.161.1.el9_2, kernel-tools 5.14.0-284.161.1.el9_2, python3-perf 5.14.0-284.161.1.el9_2, +28 more
    fixed: vendor fix RHSA-2026:5813
  • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) kernel 6.12.0-55.63.1.el10_0, kernel-64k 6.12.0-55.63.1.el10_0, kernel-core 6.12.0-55.63.1.el10_0, kernel-tools 6.12.0-55.63.1.el10_0, kernel-modules 6.12.0-55.63.1.el10_0, kernel-64k-core 6.12.0-55.63.1.el10_0, +27 more
    fixed: vendor fix RHSA-2026:4111
  • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool 7.3.0-427.114.1.el9_4, kernel 5.14.0-427.114.1.el9_4, kernel-64k 5.14.0-427.114.1.el9_4, kernel-core 5.14.0-427.114.1.el9_4, kernel-tools 5.14.0-427.114.1.el9_4, python3-perf 5.14.0-427.114.1.el9_4, +28 more
    fixed: vendor fix RHSA-2026:4246
  • Red Hat Enterprise Linux BaseOS EUS (v.9.6) kernel 5.14.0-570.96.1.el9_6, kernel-64k 5.14.0-570.96.1.el9_6, kernel-core 5.14.0-570.96.1.el9_6, kernel-tools 5.14.0-570.96.1.el9_6, kernel-modules 5.14.0-570.96.1.el9_6, kernel-64k-core 5.14.0-570.96.1.el9_6, +27 more
    fixed: vendor fix RHSA-2026:4011
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) perf 4.18.0-305.187.1.el8_4, kernel 4.18.0-305.187.1.el8_4, bpftool 4.18.0-305.187.1.el8_4, kernel-core 4.18.0-305.187.1.el8_4, kernel-tools 4.18.0-305.187.1.el8_4, python3-perf 4.18.0-305.187.1.el8_4, +8 more
    fixed: vendor fix RHSA-2026:5821
  • Red Hat Enterprise Linux BaseOS TUS (v.8.6) perf 4.18.0-372.183.1.el8_6, kernel 4.18.0-372.183.1.el8_6, bpftool 4.18.0-372.183.1.el8_6, kernel-core 4.18.0-372.183.1.el8_6, kernel-tools 4.18.0-372.183.1.el8_6, python3-perf 4.18.0-372.183.1.el8_6, +8 more
    fixed: vendor fix RHSA-2026:4243
  • Red Hat Enterprise Linux BaseOS TUS (v.8.8) perf 4.18.0-477.132.1.el8_8, kernel 4.18.0-477.132.1.el8_8, bpftool 4.18.0-477.132.1.el8_8, kernel-core 4.18.0-477.132.1.el8_8, kernel-tools 4.18.0-477.132.1.el8_8, python3-perf 4.18.0-477.132.1.el8_8, +8 more
    fixed: vendor fix RHSA-2026:4242
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libperf 5.14.0-611.35.1.el9_7, kernel-debuginfo-common-s390x 5.14.0-611.35.1.el9_7, kernel-debuginfo-common-x86_64 5.14.0-611.35.1.el9_7, kernel-debuginfo-common-aarch64 5.14.0-611.35.1.el9_7, kernel-debuginfo-common-ppc64le 5.14.0-611.35.1.el9_7
    fixed: vendor fix RHSA-2026:3066
  • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) libperf 6.12.0-55.63.1.el10_0, kernel-debuginfo-common-s390x 6.12.0-55.63.1.el10_0, kernel-debuginfo-common-x86_64 6.12.0-55.63.1.el10_0, kernel-debuginfo-common-aarch64 6.12.0-55.63.1.el10_0, kernel-debuginfo-common-ppc64le 6.12.0-55.63.1.el10_0
    fixed: vendor fix RHSA-2026:4111
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.107.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.107.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.107.1.el8_10
    fixed: vendor fix RHSA-2026:3083
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.107.1.rt7.448.el8_10, kernel-rt-kvm 4.18.0-553.107.1.rt7.448.el8_10, kernel-rt-core 4.18.0-553.107.1.rt7.448.el8_10, kernel-rt-modules 4.18.0-553.107.1.rt7.448.el8_10, kernel-rt-debug-kvm 4.18.0-553.107.1.rt7.448.el8_10, kernel-rt-debug-core 4.18.0-553.107.1.rt7.448.el8_10, +4 more
    fixed: vendor fix RHSA-2026:3110
  • Red Hat Enterprise Linux NFV E4S (v.9.0) kernel-rt 5.14.0-70.169.1.rt21.241.el9_0, kernel-rt-kvm 5.14.0-70.169.1.rt21.241.el9_0, kernel-rt-core 5.14.0-70.169.1.rt21.241.el9_0, kernel-rt-modules 5.14.0-70.169.1.rt21.241.el9_0, kernel-rt-debug-kvm 5.14.0-70.169.1.rt21.241.el9_0, kernel-rt-debug-core 5.14.0-70.169.1.rt21.241.el9_0, +4 more
    fixed: vendor fix RHSA-2026:4244
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-611.35.1.el9_7, kernel-rt-64k 5.14.0-611.35.1.el9_7, kernel-rt-core 5.14.0-611.35.1.el9_7, kernel-rt-modules 5.14.0-611.35.1.el9_7, kernel-rt-64k-core 5.14.0-611.35.1.el9_7, kernel-rt-debug-core 5.14.0-611.35.1.el9_7, +14 more
    fixed: vendor fix RHSA-2026:3066
  • Red Hat Enterprise Linux Real Time E4S (v.9.0) kernel-rt 5.14.0-70.169.1.rt21.241.el9_0, kernel-rt-core 5.14.0-70.169.1.rt21.241.el9_0, kernel-rt-modules 5.14.0-70.169.1.rt21.241.el9_0, kernel-rt-debug-core 5.14.0-70.169.1.rt21.241.el9_0, kernel-rt-debug-modules 5.14.0-70.169.1.rt21.241.el9_0, kernel-rt-modules-extra 5.14.0-70.169.1.rt21.241.el9_0, +2 more
    fixed: vendor fix RHSA-2026:4244
  • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt 5.14.0-284.161.1.rt14.446.el9_2, kernel-rt-core 5.14.0-284.161.1.rt14.446.el9_2, kernel-rt-modules 5.14.0-284.161.1.rt14.446.el9_2, kernel-rt-debug-core 5.14.0-284.161.1.rt14.446.el9_2, kernel-rt-modules-core 5.14.0-284.161.1.rt14.446.el9_2, kernel-rt-debug-modules 5.14.0-284.161.1.rt14.446.el9_2, +4 more
    fixed: vendor fix RHSA-2026:5690
  • Red Hat Enterprise Linux Real Time EUS (v. 10.0) kernel-rt 6.12.0-55.63.1.el10_0, kernel-rt-64k 6.12.0-55.63.1.el10_0, kernel-rt-core 6.12.0-55.63.1.el10_0, kernel-rt-modules 6.12.0-55.63.1.el10_0, kernel-rt-64k-core 6.12.0-55.63.1.el10_0, kernel-rt-debug-core 6.12.0-55.63.1.el10_0, +14 more
    fixed: vendor fix RHSA-2026:4111
  • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt 5.14.0-427.114.1.el9_4, kernel-rt-core 5.14.0-427.114.1.el9_4, kernel-rt-modules 5.14.0-427.114.1.el9_4, kernel-rt-debug-core 5.14.0-427.114.1.el9_4, kernel-rt-modules-core 5.14.0-427.114.1.el9_4, kernel-rt-debug-modules 5.14.0-427.114.1.el9_4, +4 more
    fixed: vendor fix RHSA-2026:4246
  • Red Hat Enterprise Linux Real Time EUS (v.9.6) kernel-rt 5.14.0-570.96.1.el9_6, kernel-rt-64k 5.14.0-570.96.1.el9_6, kernel-rt-core 5.14.0-570.96.1.el9_6, kernel-rt-modules 5.14.0-570.96.1.el9_6, kernel-rt-64k-core 5.14.0-570.96.1.el9_6, kernel-rt-debug-core 5.14.0-570.96.1.el9_6, +14 more
    fixed: vendor fix RHSA-2026:4011
  • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-611.35.1.el9_7, kernel-rt-core 5.14.0-611.35.1.el9_7, kernel-rt-modules 5.14.0-611.35.1.el9_7, kernel-rt-debug-core 5.14.0-611.35.1.el9_7, kernel-rt-modules-core 5.14.0-611.35.1.el9_7, kernel-rt-debug-modules 5.14.0-611.35.1.el9_7, +4 more
    fixed: vendor fix RHSA-2026:3066
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt 5.14.0-284.161.1.rt14.446.el9_2, kernel-rt-kvm 5.14.0-284.161.1.rt14.446.el9_2, kernel-rt-core 5.14.0-284.161.1.rt14.446.el9_2, kernel-rt-modules 5.14.0-284.161.1.rt14.446.el9_2, kernel-rt-debug-kvm 5.14.0-284.161.1.rt14.446.el9_2, kernel-rt-debug-core 5.14.0-284.161.1.rt14.446.el9_2, +6 more
    fixed: vendor fix RHSA-2026:5690
  • Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) kernel-rt 6.12.0-55.63.1.el10_0, kernel-rt-kvm 6.12.0-55.63.1.el10_0, kernel-rt-core 6.12.0-55.63.1.el10_0, kernel-rt-modules 6.12.0-55.63.1.el10_0, kernel-rt-debug-kvm 6.12.0-55.63.1.el10_0, kernel-rt-debug-core 6.12.0-55.63.1.el10_0, +6 more
    fixed: vendor fix RHSA-2026:4111
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt 5.14.0-427.114.1.el9_4, kernel-rt-kvm 5.14.0-427.114.1.el9_4, kernel-rt-core 5.14.0-427.114.1.el9_4, kernel-rt-modules 5.14.0-427.114.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.114.1.el9_4, kernel-rt-debug-core 5.14.0-427.114.1.el9_4, +6 more
    fixed: vendor fix RHSA-2026:4246

2 more fixed, 2 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

0.20% chance of exploitation in the next 30 days, higher than 9% 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.