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Fencer Vulns
high 7.8

CVE-2025-23150 json

ext4: fix off-by-one error in do_split

published 2025-05-01 18 mo ago modified 2026-08-05 3 mo ago also EUVD-2025-13093

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 14%
public exploits
0
none known

Summary

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

ext4: fix off-by-one error in do_split

Syzkaller detected a use-after-free issue in ext4_insert_dentry that was caused by out-of-bounds access due to incorrect splitting in do_split.

BUG: KASAN: use-after-free in ext4_insert_dentry+0x36a/0x6d0 fs/ext4/namei.c:2109 Write of size 251 at addr ffff888074572f14 by task syz-executor335/5847

CPU: 0 UID: 0 PID: 5847 Comm: syz-executor335 Not tainted 6.12.0-rc6-syzkaller-00318-ga9cda7c0ffed #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 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:377 [inline] print_report+0x169/0x550 mm/kasan/report.c:488 kasan_report+0x143/0x180 mm/kasan/report.c:601 kasan_check_range+0x282/0x290 mm/kasan/generic.c:189 __asan_memcpy+0x40/0x70 mm/kasan/shadow.c:106 ext4_insert_dentry+0x36a/0x6d0 fs/ext4/namei.c:2109 add_dirent_to_buf+0x3d9/0x750 fs/ext4/namei.c:2154 make_indexed_dir+0xf98/0x1600 fs/ext4/namei.c:2351 ext4_add_entry+0x222a/0x25d0 fs/ext4/namei.c:2455 ext4_add_nondir+0x8d/0x290 fs/ext4/namei.c:2796 ext4_symlink+0x920/0xb50 fs/ext4/namei.c:3431 vfs_symlink+0x137/0x2e0 fs/namei.c:4615 do_symlinkat+0x222/0x3a0 fs/namei.c:4641 __do_sys_symlink fs/namei.c:4662 [inline] __se_sys_symlink fs/namei.c:4660 [inline] __x64_sys_symlink+0x7a/0x90 fs/namei.c:4660 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f </TASK>

The following loop is located right above 'if' statement.

for (i = count-1; i >= 0; i--) { /* is more than half of this entry in 2nd half of the block? */ if (size + map[i].size/2 > blocksize/2) break; size += map[i].size; move++; }

'i' in this case could go down to -1, in which case sum of active entries wouldn't exceed half the block size, but previous behaviour would also do split in half if sum would exceed at the very last block, which in case of having too many long name files in a single block could lead to out-of-bounds access and following use-after-free.

Found by Linux Verification Center (linuxtesting.org) with Syzkaller.

Patch / fix

  • Linux Linux 4.5, 4.10, 4.15, 4.20, 5.4.293, 5.8, 5.9, 5.10.237, 5.15.181, 6.1.135, 6.6.88, 6.12.24, 6.13.12, 6.14.3, 6.15
  • linux Debian 12 6.1.135-1
  • linux Debian 14, Debian 13 6.12.25-1

debian advisories DEBIAN-CVE-2025-23150

  • linux Ubuntu 22.04 LTS 5.15.0-144.157
  • linux Ubuntu 24.04 LTS 6.8.0-100.100
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1088.95
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1046.49
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1087.96
  • linux-gcp Ubuntu 24.04 LTS 6.8.0-1047.50
  • linux-gke Ubuntu 22.04 LTS 5.15.0-1085.91
  • linux-gke Ubuntu 24.04 LTS 6.8.0-1043.48

ubuntu advisories UBUNTU-CVE-2025-23150

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 8 4.18.0-553.62.1.el8_10
  • perf RHEL 8 4.18.0-553.62.1.el8_10
  • bpftool RHEL 8 4.18.0-553.62.1.el8_10
  • kernel-core RHEL 8 4.18.0-553.62.1.el8_10
  • kernel-tools RHEL 8 4.18.0-553.62.1.el8_10
  • python3-perf RHEL 8 4.18.0-553.62.1.el8_10
  • kernel-modules RHEL 8 4.18.0-553.62.1.el8_10
  • kernel-zfcpdump RHEL 8 4.18.0-553.62.1.el8_10

red hat advisories RHSA-2025:14746RHSA-2025:14748RHSA-2025:13805RHSA-2025:13776RHSA-2025:13061RHSA-2025:12526

  • dtb-aarch64 openSUSE Leap 15.6 6.4.0-150600.23.53.1
  • kernel-64kb SLE Module for Basesystem 15 SP6, openSUSE Leap 15.6 6.4.0-150600.23.53.1
  • kernel-syms SLE Module for Development Tools 15 SP6, openSUSE Leap 15.6 6.4.0-150600.23.53.1
  • kernel-obs-qa openSUSE Leap 15.6 6.4.0-150600.23.53.1
  • kernel-source SLE Module for Development Tools 15 SP6, SLE Module for Basesystem 15 SP6, openSUSE Leap 15.6 6.4.0-150600.23.53.1
  • kernel-default SLE Workstation Extension 15 SP6, SLE Module for Legacy 15 SP6, SLE Module for Basesystem 15 SP6 +3 more 6.4.0-150600.23.53.1
  • kernel-kvmsmall openSUSE Leap 15.6 6.4.0-150600.23.53.1
  • kernel-zfcpdump SLE Module for Basesystem 15 SP6, openSUSE Leap 15.6 6.4.0-150600.23.53.1

suse advisories SUSE-SU-2025:02000-1SUSE-SU-2025:01983-1SUSE-SU-2025:01972-1SUSE-SU-2025:20413-1SUSE-SU-2025:01967-1SUSE-SU-2025:01965-1

  • kernel AlmaLinux 8 4.18.0-553.62.1.el8_10
  • perf AlmaLinux 8 4.18.0-553.62.1.el8_10
  • bpftool AlmaLinux 8 4.18.0-553.62.1.el8_10
  • kernel-core AlmaLinux 8 4.18.0-553.62.1.el8_10
  • kernel-tools AlmaLinux 8 4.18.0-553.62.1.el8_10
  • python3-perf AlmaLinux 8 4.18.0-553.62.1.el8_10
  • kernel-modules AlmaLinux 8 4.18.0-553.62.1.el8_10
  • kernel-zfcpdump AlmaLinux 8 4.18.0-553.62.1.el8_10

almalinux advisories ALSA-2025:11298ALSA-2025:11299ALSA-2025:9302

  • kernel Rocky Linux 9 5.14.0-570.23.1.el9_6
  • kernel Rocky Linux 10 6.12.0-55.18.1.el10_0
  • kernel-rt Rocky Linux 8 4.18.0-553.62.1.rt7.403.el8_10
  • kernel Rocky Linux 8 4.18.0-553.62.1.el8_10

rocky linux advisories RLSA-2025:9302RLSA-2025:9348RLSA-2025:11299RLSA-2025:11298

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-2025-23150 updated cvss 7.1

kernel: ext4: fix off-by-one error in do_split

  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more
    affected: 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: no fix available
  • Red Hat CodeReady Linux Builder EUS (v.9.4) libperf 5.14.0-427.77.1.el9_4, kernel-debuginfo-common-s390x 5.14.0-427.77.1.el9_4, kernel-debuginfo-common-x86_64 5.14.0-427.77.1.el9_4, kernel-debuginfo-common-aarch64 5.14.0-427.77.1.el9_4, kernel-debuginfo-common-ppc64le 5.14.0-427.77.1.el9_4
    fixed: vendor fix RHSA-2025:11245
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-570.23.1.el9_6, perf 5.14.0-570.23.1.el9_6, rtla 5.14.0-570.23.1.el9_6, python3-perf 5.14.0-570.23.1.el9_6, kernel-devel-matched 5.14.0-570.23.1.el9_6, kernel-64k-devel-matched 5.14.0-570.23.1.el9_6, +7 more
    fixed: vendor fix RHSA-2025:9302
  • Red Hat Enterprise Linux AppStream (v. 10) rv 6.12.0-55.18.1.el10_0, perf 6.12.0-55.18.1.el10_0, rtla 6.12.0-55.18.1.el10_0, python3-perf 6.12.0-55.18.1.el10_0, kernel-devel-matched 6.12.0-55.18.1.el10_0, kernel-64k-devel-matched 6.12.0-55.18.1.el10_0, +7 more
    fixed: vendor fix RHSA-2025:9348
  • Red Hat Enterprise Linux AppStream E4S (v.9.0) perf 5.14.0-70.140.1.el9_0, kernel-devel-matched 5.14.0-70.140.1.el9_0, kernel-debug-devel-matched 5.14.0-70.140.1.el9_0, kernel-debuginfo-common-s390x 5.14.0-70.140.1.el9_0, kernel-zfcpdump-devel-matched 5.14.0-70.140.1.el9_0, kernel-debuginfo-common-x86_64 5.14.0-70.140.1.el9_0, +2 more
    fixed: vendor fix RHSA-2025:12526
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) perf 5.14.0-284.126.1.el9_2, rtla 5.14.0-284.126.1.el9_2, kernel-devel-matched 5.14.0-284.126.1.el9_2, kernel-64k-devel-matched 5.14.0-284.126.1.el9_2, kernel-debug-devel-matched 5.14.0-284.126.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.126.1.el9_2, +5 more
    fixed: vendor fix RHSA-2025:11571
  • Red Hat Enterprise Linux AppStream EUS (v.9.4) rv 5.14.0-427.77.1.el9_4, perf 5.14.0-427.77.1.el9_4, rtla 5.14.0-427.77.1.el9_4, kernel-devel-matched 5.14.0-427.77.1.el9_4, kernel-64k-devel-matched 5.14.0-427.77.1.el9_4, kernel-debug-devel-matched 5.14.0-427.77.1.el9_4, +6 more
    fixed: vendor fix RHSA-2025:11245
show 29 more
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.62.1.el8_10, kernel 4.18.0-553.62.1.el8_10, bpftool 4.18.0-553.62.1.el8_10, kernel-core 4.18.0-553.62.1.el8_10, kernel-tools 4.18.0-553.62.1.el8_10, python3-perf 4.18.0-553.62.1.el8_10, +15 more
    fixed: vendor fix RHSA-2025:11298
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-570.23.1.el9_6, kernel-64k 5.14.0-570.23.1.el9_6, kernel-core 5.14.0-570.23.1.el9_6, kernel-tools 5.14.0-570.23.1.el9_6, kernel-modules 5.14.0-570.23.1.el9_6, kernel-64k-core 5.14.0-570.23.1.el9_6, +27 more
    fixed: vendor fix RHSA-2025:9302
  • Red Hat Enterprise Linux BaseOS (v. 10) kernel 6.12.0-55.18.1.el10_0, kernel-64k 6.12.0-55.18.1.el10_0, kernel-core 6.12.0-55.18.1.el10_0, kernel-tools 6.12.0-55.18.1.el10_0, kernel-modules 6.12.0-55.18.1.el10_0, kernel-64k-core 6.12.0-55.18.1.el10_0, +27 more
    fixed: vendor fix RHSA-2025:9348
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) perf 4.18.0-305.168.1.el8_4, kernel 4.18.0-305.168.1.el8_4, bpftool 4.18.0-305.168.1.el8_4, kernel-core 4.18.0-305.168.1.el8_4, kernel-tools 4.18.0-305.168.1.el8_4, python3-perf 4.18.0-305.168.1.el8_4, +8 more
    fixed: vendor fix RHSA-2025:13805
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) perf 4.18.0-372.157.1.el8_6, kernel 4.18.0-372.157.1.el8_6, bpftool 4.18.0-372.157.1.el8_6, kernel-core 4.18.0-372.157.1.el8_6, kernel-tools 4.18.0-372.157.1.el8_6, python3-perf 4.18.0-372.157.1.el8_6, +8 more Red Hat Enterprise Linux BaseOS E4S (v.8.6) perf 4.18.0-372.157.1.el8_6, kernel 4.18.0-372.157.1.el8_6, bpftool 4.18.0-372.157.1.el8_6, kernel-core 4.18.0-372.157.1.el8_6, kernel-tools 4.18.0-372.157.1.el8_6, python3-perf 4.18.0-372.157.1.el8_6, +15 more
    fixed: vendor fix RHSA-2025:13776
  • Red Hat Enterprise Linux BaseOS E4S (v.8.8) perf 4.18.0-477.104.1.el8_8, kernel 4.18.0-477.104.1.el8_8, bpftool 4.18.0-477.104.1.el8_8, kernel-core 4.18.0-477.104.1.el8_8, kernel-tools 4.18.0-477.104.1.el8_8, python3-perf 4.18.0-477.104.1.el8_8, +9 more
    fixed: vendor fix RHSA-2025:13061
  • Red Hat Enterprise Linux BaseOS E4S (v.9.0) kernel 5.14.0-70.140.1.el9_0, bpftool 5.14.0-70.140.1.el9_0, kernel-core 5.14.0-70.140.1.el9_0, kernel-tools 5.14.0-70.140.1.el9_0, python3-perf 5.14.0-70.140.1.el9_0, kernel-modules 5.14.0-70.140.1.el9_0, +14 more
    fixed: vendor fix RHSA-2025:12526
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool 7.0.0-284.126.1.el9_2, kernel 5.14.0-284.126.1.el9_2, kernel-64k 5.14.0-284.126.1.el9_2, kernel-core 5.14.0-284.126.1.el9_2, kernel-tools 5.14.0-284.126.1.el9_2, python3-perf 5.14.0-284.126.1.el9_2, +28 more
    fixed: vendor fix RHSA-2025:11571
  • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool 7.3.0-427.77.1.el9_4, kernel 5.14.0-427.77.1.el9_4, kernel-64k 5.14.0-427.77.1.el9_4, kernel-core 5.14.0-427.77.1.el9_4, kernel-tools 5.14.0-427.77.1.el9_4, python3-perf 5.14.0-427.77.1.el9_4, +28 more
    fixed: vendor fix RHSA-2025:11245
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) perf 4.18.0-305.168.1.el8_4, kernel 4.18.0-305.168.1.el8_4, bpftool 4.18.0-305.168.1.el8_4, kernel-core 4.18.0-305.168.1.el8_4, kernel-tools 4.18.0-305.168.1.el8_4, python3-perf 4.18.0-305.168.1.el8_4, +8 more
    fixed: vendor fix RHSA-2025:13805
  • Red Hat Enterprise Linux BaseOS TUS (v.8.6) perf 4.18.0-372.157.1.el8_6, kernel 4.18.0-372.157.1.el8_6, bpftool 4.18.0-372.157.1.el8_6, kernel-core 4.18.0-372.157.1.el8_6, kernel-tools 4.18.0-372.157.1.el8_6, python3-perf 4.18.0-372.157.1.el8_6, +8 more
    fixed: vendor fix RHSA-2025:13776
  • Red Hat Enterprise Linux BaseOS TUS (v.8.8) perf 4.18.0-477.104.1.el8_8, kernel 4.18.0-477.104.1.el8_8, bpftool 4.18.0-477.104.1.el8_8, kernel-core 4.18.0-477.104.1.el8_8, kernel-tools 4.18.0-477.104.1.el8_8, python3-perf 4.18.0-477.104.1.el8_8, +8 more
    fixed: vendor fix RHSA-2025:13061
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libperf 5.14.0-570.23.1.el9_6, kernel-debuginfo-common-s390x 5.14.0-570.23.1.el9_6, kernel-debuginfo-common-x86_64 5.14.0-570.23.1.el9_6, kernel-debuginfo-common-aarch64 5.14.0-570.23.1.el9_6, kernel-debuginfo-common-ppc64le 5.14.0-570.23.1.el9_6
    fixed: vendor fix RHSA-2025:9302
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libperf 6.12.0-55.18.1.el10_0, kernel-debuginfo-common-s390x 6.12.0-55.18.1.el10_0, kernel-debuginfo-common-x86_64 6.12.0-55.18.1.el10_0, kernel-debuginfo-common-aarch64 6.12.0-55.18.1.el10_0, kernel-debuginfo-common-ppc64le 6.12.0-55.18.1.el10_0
    fixed: vendor fix RHSA-2025:9348
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.62.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.62.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.62.1.el8_10
    fixed: vendor fix RHSA-2025:11298
  • Red Hat Enterprise Linux for Real Time (v. 7 ELS) kernel-rt 3.10.0-1160.137.1.rt56.1289.el7, kernel-rt-trace 3.10.0-1160.137.1.rt56.1289.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1160.137.1.rt56.1289.el7
    fixed: vendor fix RHSA-2025:14746
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.62.1.rt7.403.el8_10, kernel-rt-kvm 4.18.0-553.62.1.rt7.403.el8_10, kernel-rt-core 4.18.0-553.62.1.rt7.403.el8_10, kernel-rt-modules 4.18.0-553.62.1.rt7.403.el8_10, kernel-rt-debug-kvm 4.18.0-553.62.1.rt7.403.el8_10, kernel-rt-debug-core 4.18.0-553.62.1.rt7.403.el8_10, +4 more
    fixed: vendor fix RHSA-2025:11299
  • Red Hat Enterprise Linux NFV E4S (v.9.0) kernel-rt 5.14.0-70.140.1.rt21.212.el9_0, kernel-rt-kvm 5.14.0-70.140.1.rt21.212.el9_0, kernel-rt-core 5.14.0-70.140.1.rt21.212.el9_0, kernel-rt-modules 5.14.0-70.140.1.rt21.212.el9_0, kernel-rt-debug-kvm 5.14.0-70.140.1.rt21.212.el9_0, kernel-rt-debug-core 5.14.0-70.140.1.rt21.212.el9_0, +4 more
    fixed: vendor fix RHSA-2025:12525
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-570.23.1.el9_6, kernel-rt-64k 5.14.0-570.23.1.el9_6, kernel-rt-core 5.14.0-570.23.1.el9_6, kernel-rt-modules 5.14.0-570.23.1.el9_6, kernel-rt-64k-core 5.14.0-570.23.1.el9_6, kernel-rt-debug-core 5.14.0-570.23.1.el9_6, +14 more
    fixed: vendor fix RHSA-2025:9302
  • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt 6.12.0-55.18.1.el10_0, kernel-rt-64k 6.12.0-55.18.1.el10_0, kernel-rt-core 6.12.0-55.18.1.el10_0, kernel-rt-modules 6.12.0-55.18.1.el10_0, kernel-rt-64k-core 6.12.0-55.18.1.el10_0, kernel-rt-debug-core 6.12.0-55.18.1.el10_0, +14 more
    fixed: vendor fix RHSA-2025:9348
  • Red Hat Enterprise Linux Real Time E4S (v.9.0) kernel-rt 5.14.0-70.140.1.rt21.212.el9_0, kernel-rt-core 5.14.0-70.140.1.rt21.212.el9_0, kernel-rt-modules 5.14.0-70.140.1.rt21.212.el9_0, kernel-rt-debug-core 5.14.0-70.140.1.rt21.212.el9_0, kernel-rt-debug-modules 5.14.0-70.140.1.rt21.212.el9_0, kernel-rt-modules-extra 5.14.0-70.140.1.rt21.212.el9_0, +2 more
    fixed: vendor fix RHSA-2025:12525
  • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt 5.14.0-284.126.1.rt14.411.el9_2, kernel-rt-core 5.14.0-284.126.1.rt14.411.el9_2, kernel-rt-modules 5.14.0-284.126.1.rt14.411.el9_2, kernel-rt-debug-core 5.14.0-284.126.1.rt14.411.el9_2, kernel-rt-modules-core 5.14.0-284.126.1.rt14.411.el9_2, kernel-rt-debug-modules 5.14.0-284.126.1.rt14.411.el9_2, +4 more
    fixed: vendor fix RHSA-2025:11572
  • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt 5.14.0-427.77.1.el9_4, kernel-rt-core 5.14.0-427.77.1.el9_4, kernel-rt-modules 5.14.0-427.77.1.el9_4, kernel-rt-debug-core 5.14.0-427.77.1.el9_4, kernel-rt-modules-core 5.14.0-427.77.1.el9_4, kernel-rt-debug-modules 5.14.0-427.77.1.el9_4, +4 more
    fixed: vendor fix RHSA-2025:11245
  • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-570.23.1.el9_6, kernel-rt-kvm 5.14.0-570.23.1.el9_6, kernel-rt-core 5.14.0-570.23.1.el9_6, kernel-rt-modules 5.14.0-570.23.1.el9_6, kernel-rt-debug-kvm 5.14.0-570.23.1.el9_6, kernel-rt-debug-core 5.14.0-570.23.1.el9_6, +6 more
    fixed: vendor fix RHSA-2025:9302
  • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt 6.12.0-55.18.1.el10_0, kernel-rt-kvm 6.12.0-55.18.1.el10_0, kernel-rt-core 6.12.0-55.18.1.el10_0, kernel-rt-modules 6.12.0-55.18.1.el10_0, kernel-rt-debug-kvm 6.12.0-55.18.1.el10_0, kernel-rt-debug-core 6.12.0-55.18.1.el10_0, +6 more
    fixed: vendor fix RHSA-2025:9348
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt 5.14.0-284.126.1.rt14.411.el9_2, kernel-rt-kvm 5.14.0-284.126.1.rt14.411.el9_2, kernel-rt-core 5.14.0-284.126.1.rt14.411.el9_2, kernel-rt-modules 5.14.0-284.126.1.rt14.411.el9_2, kernel-rt-debug-kvm 5.14.0-284.126.1.rt14.411.el9_2, kernel-rt-debug-core 5.14.0-284.126.1.rt14.411.el9_2, +6 more
    fixed: vendor fix RHSA-2025:11572
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt 5.14.0-427.77.1.el9_4, kernel-rt-kvm 5.14.0-427.77.1.el9_4, kernel-rt-core 5.14.0-427.77.1.el9_4, kernel-rt-modules 5.14.0-427.77.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.77.1.el9_4, kernel-rt-debug-core 5.14.0-427.77.1.el9_4, +6 more
    fixed: vendor fix RHSA-2025:11245
  • Red Hat Enterprise Linux RT (v. 8) kernel-rt 4.18.0-553.62.1.rt7.403.el8_10, kernel-rt-core 4.18.0-553.62.1.rt7.403.el8_10, kernel-rt-modules 4.18.0-553.62.1.rt7.403.el8_10, kernel-rt-debug-core 4.18.0-553.62.1.rt7.403.el8_10, kernel-rt-debug-modules 4.18.0-553.62.1.rt7.403.el8_10, kernel-rt-modules-extra 4.18.0-553.62.1.rt7.403.el8_10, +2 more
    fixed: vendor fix RHSA-2025:11299
  • Red Hat Enterprise Linux Server (v. 7 ELS) perf 3.10.0-1160.137.1.el7, kernel 3.10.0-1160.137.1.el7, bpftool 3.10.0-1160.137.1.el7, python-perf 3.10.0-1160.137.1.el7, kernel-kdump 3.10.0-1160.137.1.el7, kernel-tools 3.10.0-1160.137.1.el7, +7 more Red Hat Enterprise Linux Server Optional (v. 7 ELS) kernel-debuginfo-common-ppc64 3.10.0-1160.137.1.el7, kernel-debuginfo-common-x86_64 3.10.0-1160.137.1.el7, kernel-debuginfo-common-ppc64le 3.10.0-1160.137.1.el7
    fixed: vendor fix RHSA-2025:14748

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

0.23% chance of exploitation in the next 30 days, higher than 14% 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 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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.