Skip to content
Fencer Vulns
high 7.8

CVE-2025-38415 json

Squashfs: check return result of sb_min_blocksize

published 2025-07-25 15 mo ago modified 2026-06-18 4 mo ago also EUVD-2025-22672

cvss
7.8
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 13%
public exploits
0
none known

Summary

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

Squashfs: check return result of sb_min_blocksize

Syzkaller reports an "UBSAN: shift-out-of-bounds in squashfs_bio_read" bug.

Syzkaller forks multiple processes which after mounting the Squashfs filesystem, issues an ioctl("/dev/loop0", LOOP_SET_BLOCK_SIZE, 0x8000). Now if this ioctl occurs at the same time another process is in the process of mounting a Squashfs filesystem on /dev/loop0, the failure occurs. When this happens the following code in squashfs_fill_super() fails.

---- msblk->devblksize = sb_min_blocksize(sb, SQUASHFS_DEVBLK_SIZE); msblk->devblksize_log2 = ffz(~msblk->devblksize); ----

sb_min_blocksize() returns 0, which means msblk->devblksize is set to 0.

As a result, ffz(~msblk->devblksize) returns 64, and msblk->devblksize_log2 is set to 64.

This subsequently causes the

UBSAN: shift-out-of-bounds in fs/squashfs/block.c:195:36 shift exponent 64 is too large for 64-bit type 'u64' (aka 'unsigned long long')

This commit adds a check for a 0 return by sb_min_blocksize().

Patch / fix

  • Linux Linux 5.4.295, 5.10.239, 5.15.186, 6.1.142, 6.6.94, 6.12.34, 6.15.3, 6.16
  • linux Debian 12 6.1.147-1
  • linux Debian 14, Debian 13 6.12.35-1

debian advisories DEBIAN-CVE-2025-38415

  • 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-2025-38415

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 10.1 6.12.0-124.35.1.el10_1
  • rv RHEL 10.1 6.12.0-124.35.1.el10_1
  • perf RHEL 10.1 6.12.0-124.35.1.el10_1
  • rtla RHEL 10.1 6.12.0-124.35.1.el10_1
  • libperf RHEL 10.1 6.12.0-124.35.1.el10_1
  • kernel-rt RHEL 10.1 6.12.0-124.35.1.el10_1
  • kernel-64k RHEL 10.1 6.12.0-124.35.1.el10_1
  • kernel-core RHEL 10.1 6.12.0-124.35.1.el10_1

red hat advisories RHSA-2026:3685RHSA-2026:3634RHSA-2026:3579RHSA-2026:3388RHSA-2026:3375RHSA-2026:3360

  • 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-2025:03023-1SUSE-SU-2025:03011-1

  • 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 5.14.0-611.30.1.el9_7
  • rv AlmaLinux 9 5.14.0-611.30.1.el9_7
  • perf AlmaLinux 9 5.14.0-611.30.1.el9_7
  • rtla AlmaLinux 9 5.14.0-611.30.1.el9_7
  • libperf AlmaLinux 9 5.14.0-611.30.1.el9_7
  • kernel-rt AlmaLinux 9 5.14.0-611.30.1.el9_7
  • kernel-64k AlmaLinux 9 5.14.0-611.30.1.el9_7
  • kernel-core AlmaLinux 9 5.14.0-611.30.1.el9_7

almalinux advisories ALSA-2026:2212ALSA-2026:2282ALSA-2026:1661ALSA-2026:1662

  • kernel Rocky Linux 10 6.12.0-124.35.1.el10_1
  • kernel Rocky Linux 9 5.14.0-611.30.1.el9_7
  • kernel-rt Rocky Linux 8 4.18.0-553.100.1.rt7.441.el8_10
  • kernel Rocky Linux 8 4.18.0-553.100.1.el8_10

rocky linux advisories RLSA-2026:2282RLSA-2026:2212RLSA-2026:1661RLSA-2026:1662

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-2025-38415 updated cvss 7.1

kernel: Linux kernel: Memory corruption in Squashfs due to incorrect block size calculation

  • 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 5.14.0-427.111.1.el9_4, kernel-debuginfo-common-s390x 5.14.0-427.111.1.el9_4, kernel-debuginfo-common-x86_64 5.14.0-427.111.1.el9_4, kernel-debuginfo-common-aarch64 5.14.0-427.111.1.el9_4, kernel-debuginfo-common-ppc64le 5.14.0-427.111.1.el9_4
    fixed: vendor fix RHSA-2026:2766
  • Red Hat CodeReady Linux Builder EUS (v.9.6) libperf 5.14.0-570.92.1.el9_6, kernel-debuginfo-common-s390x 5.14.0-570.92.1.el9_6, kernel-debuginfo-common-x86_64 5.14.0-570.92.1.el9_6, kernel-debuginfo-common-aarch64 5.14.0-570.92.1.el9_6, kernel-debuginfo-common-ppc64le 5.14.0-570.92.1.el9_6
    fixed: vendor fix RHSA-2026:3088
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-611.30.1.el9_7, perf 5.14.0-611.30.1.el9_7, rtla 5.14.0-611.30.1.el9_7, python3-perf 5.14.0-611.30.1.el9_7, kernel-devel-matched 5.14.0-611.30.1.el9_7, kernel-64k-devel-matched 5.14.0-611.30.1.el9_7, +7 more
    fixed: vendor fix RHSA-2026:2212
  • Red Hat Enterprise Linux AppStream (v. 10) rv 6.12.0-124.35.1.el10_1, perf 6.12.0-124.35.1.el10_1, rtla 6.12.0-124.35.1.el10_1, python3-perf 6.12.0-124.35.1.el10_1, kernel-devel-matched 6.12.0-124.35.1.el10_1, kernel-64k-devel-matched 6.12.0-124.35.1.el10_1, +7 more
    fixed: vendor fix RHSA-2026:2282
  • Red Hat Enterprise Linux AppStream E4S (v.9.0) perf 5.14.0-70.167.1.el9_0, kernel-devel-matched 5.14.0-70.167.1.el9_0, kernel-debug-devel-matched 5.14.0-70.167.1.el9_0, kernel-debuginfo-common-s390x 5.14.0-70.167.1.el9_0, kernel-zfcpdump-devel-matched 5.14.0-70.167.1.el9_0, kernel-debuginfo-common-x86_64 5.14.0-70.167.1.el9_0, +2 more
    fixed: vendor fix RHSA-2026:3293
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) perf 5.14.0-284.158.1.el9_2, rtla 5.14.0-284.158.1.el9_2, kernel-devel-matched 5.14.0-284.158.1.el9_2, kernel-64k-devel-matched 5.14.0-284.158.1.el9_2, kernel-debug-devel-matched 5.14.0-284.158.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.158.1.el9_2, +5 more
    fixed: vendor fix RHSA-2026:3267
show 31 more
  • Red Hat Enterprise Linux AppStream EUS (v. 10.0) rv 6.12.0-55.62.1.el10_0, perf 6.12.0-55.62.1.el10_0, rtla 6.12.0-55.62.1.el10_0, python3-perf 6.12.0-55.62.1.el10_0, kernel-devel-matched 6.12.0-55.62.1.el10_0, kernel-64k-devel-matched 6.12.0-55.62.1.el10_0, +7 more
    fixed: vendor fix RHSA-2026:3579
  • Red Hat Enterprise Linux AppStream EUS (v.9.4) rv 5.14.0-427.111.1.el9_4, perf 5.14.0-427.111.1.el9_4, rtla 5.14.0-427.111.1.el9_4, kernel-devel-matched 5.14.0-427.111.1.el9_4, kernel-64k-devel-matched 5.14.0-427.111.1.el9_4, kernel-debug-devel-matched 5.14.0-427.111.1.el9_4, +6 more
    fixed: vendor fix RHSA-2026:2766
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) rv 5.14.0-570.92.1.el9_6, perf 5.14.0-570.92.1.el9_6, rtla 5.14.0-570.92.1.el9_6, python3-perf 5.14.0-570.92.1.el9_6, kernel-devel-matched 5.14.0-570.92.1.el9_6, kernel-64k-devel-matched 5.14.0-570.92.1.el9_6, +7 more
    fixed: vendor fix RHSA-2026:3088
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.100.1.el8_10, kernel 4.18.0-553.100.1.el8_10, bpftool 4.18.0-553.100.1.el8_10, kernel-core 4.18.0-553.100.1.el8_10, kernel-tools 4.18.0-553.100.1.el8_10, python3-perf 4.18.0-553.100.1.el8_10, +15 more
    fixed: vendor fix RHSA-2026:1662
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-611.30.1.el9_7, kernel-64k 5.14.0-611.30.1.el9_7, kernel-core 5.14.0-611.30.1.el9_7, kernel-tools 5.14.0-611.30.1.el9_7, kernel-modules 5.14.0-611.30.1.el9_7, kernel-64k-core 5.14.0-611.30.1.el9_7, +27 more
    fixed: vendor fix RHSA-2026:2212
  • Red Hat Enterprise Linux BaseOS (v. 10) kernel 6.12.0-124.35.1.el10_1, kernel-64k 6.12.0-124.35.1.el10_1, kernel-core 6.12.0-124.35.1.el10_1, kernel-tools 6.12.0-124.35.1.el10_1, kernel-modules 6.12.0-124.35.1.el10_1, kernel-64k-core 6.12.0-124.35.1.el10_1, +28 more
    fixed: vendor fix RHSA-2026:2282
  • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) perf 4.18.0-193.187.1.el8_2, kernel 4.18.0-193.187.1.el8_2, bpftool 4.18.0-193.187.1.el8_2, kernel-core 4.18.0-193.187.1.el8_2, kernel-tools 4.18.0-193.187.1.el8_2, python3-perf 4.18.0-193.187.1.el8_2, +8 more
    fixed: vendor fix RHSA-2026:3388
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) perf 4.18.0-305.186.1.el8_4, kernel 4.18.0-305.186.1.el8_4, bpftool 4.18.0-305.186.1.el8_4, kernel-core 4.18.0-305.186.1.el8_4, kernel-tools 4.18.0-305.186.1.el8_4, python3-perf 4.18.0-305.186.1.el8_4, +8 more
    fixed: vendor fix RHSA-2026:3360
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) perf 4.18.0-372.181.1.el8_6, kernel 4.18.0-372.181.1.el8_6, bpftool 4.18.0-372.181.1.el8_6, kernel-core 4.18.0-372.181.1.el8_6, kernel-tools 4.18.0-372.181.1.el8_6, python3-perf 4.18.0-372.181.1.el8_6, +8 more Red Hat Enterprise Linux BaseOS E4S (v.8.6) perf 4.18.0-372.181.1.el8_6, kernel 4.18.0-372.181.1.el8_6, bpftool 4.18.0-372.181.1.el8_6, kernel-core 4.18.0-372.181.1.el8_6, kernel-tools 4.18.0-372.181.1.el8_6, python3-perf 4.18.0-372.181.1.el8_6, +15 more
    fixed: vendor fix RHSA-2026:3268
  • Red Hat Enterprise Linux BaseOS E4S (v.8.8) perf 4.18.0-477.130.1.el8_8, kernel 4.18.0-477.130.1.el8_8, bpftool 4.18.0-477.130.1.el8_8, kernel-core 4.18.0-477.130.1.el8_8, kernel-tools 4.18.0-477.130.1.el8_8, python3-perf 4.18.0-477.130.1.el8_8, +9 more
    fixed: vendor fix RHSA-2026:3277
  • Red Hat Enterprise Linux BaseOS E4S (v.9.0) kernel 5.14.0-70.167.1.el9_0, bpftool 5.14.0-70.167.1.el9_0, kernel-core 5.14.0-70.167.1.el9_0, kernel-tools 5.14.0-70.167.1.el9_0, python3-perf 5.14.0-70.167.1.el9_0, kernel-modules 5.14.0-70.167.1.el9_0, +14 more
    fixed: vendor fix RHSA-2026:3293
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool 7.0.0-284.158.1.el9_2, kernel 5.14.0-284.158.1.el9_2, kernel-64k 5.14.0-284.158.1.el9_2, kernel-core 5.14.0-284.158.1.el9_2, kernel-tools 5.14.0-284.158.1.el9_2, python3-perf 5.14.0-284.158.1.el9_2, +28 more
    fixed: vendor fix RHSA-2026:3267
  • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) kernel 6.12.0-55.62.1.el10_0, kernel-64k 6.12.0-55.62.1.el10_0, kernel-core 6.12.0-55.62.1.el10_0, kernel-tools 6.12.0-55.62.1.el10_0, kernel-modules 6.12.0-55.62.1.el10_0, kernel-64k-core 6.12.0-55.62.1.el10_0, +27 more
    fixed: vendor fix RHSA-2026:3579
  • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool 7.3.0-427.111.1.el9_4, kernel 5.14.0-427.111.1.el9_4, kernel-64k 5.14.0-427.111.1.el9_4, kernel-core 5.14.0-427.111.1.el9_4, kernel-tools 5.14.0-427.111.1.el9_4, python3-perf 5.14.0-427.111.1.el9_4, +28 more
    fixed: vendor fix RHSA-2026:2766
  • Red Hat Enterprise Linux BaseOS EUS (v.9.6) kernel 5.14.0-570.92.1.el9_6, kernel-64k 5.14.0-570.92.1.el9_6, kernel-core 5.14.0-570.92.1.el9_6, kernel-tools 5.14.0-570.92.1.el9_6, kernel-modules 5.14.0-570.92.1.el9_6, kernel-64k-core 5.14.0-570.92.1.el9_6, +27 more
    fixed: vendor fix RHSA-2026:3088
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) perf 4.18.0-305.186.1.el8_4, kernel 4.18.0-305.186.1.el8_4, bpftool 4.18.0-305.186.1.el8_4, kernel-core 4.18.0-305.186.1.el8_4, kernel-tools 4.18.0-305.186.1.el8_4, python3-perf 4.18.0-305.186.1.el8_4, +8 more
    fixed: vendor fix RHSA-2026:3360
  • Red Hat Enterprise Linux BaseOS TUS (v.8.6) perf 4.18.0-372.181.1.el8_6, kernel 4.18.0-372.181.1.el8_6, bpftool 4.18.0-372.181.1.el8_6, kernel-core 4.18.0-372.181.1.el8_6, kernel-tools 4.18.0-372.181.1.el8_6, python3-perf 4.18.0-372.181.1.el8_6, +8 more
    fixed: vendor fix RHSA-2026:3268
  • Red Hat Enterprise Linux BaseOS TUS (v.8.8) perf 4.18.0-477.130.1.el8_8, kernel 4.18.0-477.130.1.el8_8, bpftool 4.18.0-477.130.1.el8_8, kernel-core 4.18.0-477.130.1.el8_8, kernel-tools 4.18.0-477.130.1.el8_8, python3-perf 4.18.0-477.130.1.el8_8, +8 more
    fixed: vendor fix RHSA-2026:3277
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libperf 5.14.0-611.30.1.el9_7, kernel-debuginfo-common-s390x 5.14.0-611.30.1.el9_7, kernel-debuginfo-common-x86_64 5.14.0-611.30.1.el9_7, kernel-debuginfo-common-aarch64 5.14.0-611.30.1.el9_7, kernel-debuginfo-common-ppc64le 5.14.0-611.30.1.el9_7
    fixed: vendor fix RHSA-2026:2212
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libperf 6.12.0-124.35.1.el10_1, kernel-debuginfo-common-s390x 6.12.0-124.35.1.el10_1, kernel-debuginfo-common-x86_64 6.12.0-124.35.1.el10_1, kernel-debuginfo-common-aarch64 6.12.0-124.35.1.el10_1, kernel-debuginfo-common-ppc64le 6.12.0-124.35.1.el10_1
    fixed: vendor fix RHSA-2026:2282
  • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) libperf 6.12.0-55.62.1.el10_0, kernel-debuginfo-common-s390x 6.12.0-55.62.1.el10_0, kernel-debuginfo-common-x86_64 6.12.0-55.62.1.el10_0, kernel-debuginfo-common-aarch64 6.12.0-55.62.1.el10_0, kernel-debuginfo-common-ppc64le 6.12.0-55.62.1.el10_0
    fixed: vendor fix RHSA-2026:3579
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.100.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.100.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.100.1.el8_10
    fixed: vendor fix RHSA-2026:1662
  • Red Hat Enterprise Linux for Real Time (v. 7 ELS) kernel-rt 3.10.0-1160.147.1.rt56.1299.el7, kernel-rt-trace 3.10.0-1160.147.1.rt56.1299.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1160.147.1.rt56.1299.el7
    fixed: vendor fix RHSA-2026:3634
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.100.1.rt7.441.el8_10, kernel-rt-kvm 4.18.0-553.100.1.rt7.441.el8_10, kernel-rt-core 4.18.0-553.100.1.rt7.441.el8_10, kernel-rt-modules 4.18.0-553.100.1.rt7.441.el8_10, kernel-rt-debug-kvm 4.18.0-553.100.1.rt7.441.el8_10, kernel-rt-debug-core 4.18.0-553.100.1.rt7.441.el8_10, +4 more
    fixed: vendor fix RHSA-2026:1661
  • Red Hat Enterprise Linux NFV E4S (v.9.0) kernel-rt 5.14.0-70.167.1.rt21.239.el9_0, kernel-rt-kvm 5.14.0-70.167.1.rt21.239.el9_0, kernel-rt-core 5.14.0-70.167.1.rt21.239.el9_0, kernel-rt-modules 5.14.0-70.167.1.rt21.239.el9_0, kernel-rt-debug-kvm 5.14.0-70.167.1.rt21.239.el9_0, kernel-rt-debug-core 5.14.0-70.167.1.rt21.239.el9_0, +4 more
    fixed: vendor fix RHSA-2026:3375
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-611.30.1.el9_7, kernel-rt-64k 5.14.0-611.30.1.el9_7, kernel-rt-core 5.14.0-611.30.1.el9_7, kernel-rt-modules 5.14.0-611.30.1.el9_7, kernel-rt-64k-core 5.14.0-611.30.1.el9_7, kernel-rt-debug-core 5.14.0-611.30.1.el9_7, +14 more
    fixed: vendor fix RHSA-2026:2212
  • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt 6.12.0-124.35.1.el10_1, kernel-rt-64k 6.12.0-124.35.1.el10_1, kernel-rt-core 6.12.0-124.35.1.el10_1, kernel-rt-modules 6.12.0-124.35.1.el10_1, kernel-rt-64k-core 6.12.0-124.35.1.el10_1, kernel-rt-debug-core 6.12.0-124.35.1.el10_1, +14 more
    fixed: vendor fix RHSA-2026:2282
  • Red Hat Enterprise Linux Real Time E4S (v.9.0) kernel-rt 5.14.0-70.167.1.rt21.239.el9_0, kernel-rt-core 5.14.0-70.167.1.rt21.239.el9_0, kernel-rt-modules 5.14.0-70.167.1.rt21.239.el9_0, kernel-rt-debug-core 5.14.0-70.167.1.rt21.239.el9_0, kernel-rt-debug-modules 5.14.0-70.167.1.rt21.239.el9_0, kernel-rt-modules-extra 5.14.0-70.167.1.rt21.239.el9_0, +2 more
    fixed: vendor fix RHSA-2026:3375
  • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt 5.14.0-284.158.1.rt14.443.el9_2, kernel-rt-core 5.14.0-284.158.1.rt14.443.el9_2, kernel-rt-modules 5.14.0-284.158.1.rt14.443.el9_2, kernel-rt-debug-core 5.14.0-284.158.1.rt14.443.el9_2, kernel-rt-modules-core 5.14.0-284.158.1.rt14.443.el9_2, kernel-rt-debug-modules 5.14.0-284.158.1.rt14.443.el9_2, +4 more
    fixed: vendor fix RHSA-2026:3358
  • Red Hat Enterprise Linux Real Time EUS (v. 10.0) kernel-rt 6.12.0-55.62.1.el10_0, kernel-rt-64k 6.12.0-55.62.1.el10_0, kernel-rt-core 6.12.0-55.62.1.el10_0, kernel-rt-modules 6.12.0-55.62.1.el10_0, kernel-rt-64k-core 6.12.0-55.62.1.el10_0, kernel-rt-debug-core 6.12.0-55.62.1.el10_0, +14 more
    fixed: vendor fix RHSA-2026:3579
  • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt 5.14.0-427.111.1.el9_4, kernel-rt-core 5.14.0-427.111.1.el9_4, kernel-rt-modules 5.14.0-427.111.1.el9_4, kernel-rt-debug-core 5.14.0-427.111.1.el9_4, kernel-rt-modules-core 5.14.0-427.111.1.el9_4, kernel-rt-debug-modules 5.14.0-427.111.1.el9_4, +4 more
    fixed: vendor fix RHSA-2026:2766

10 more fixed 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

0.22% chance of exploitation in the next 30 days, higher than 13% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
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.