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Fencer Vulns
high 7.8

CVE-2026-46209 json

drm/gem: Fix inconsistent plane dimension calculation in drm_gem_fb_init_with_funcs()

published 2026-05-28 5 mo ago modified 2026-10-19 20 d ago also EUVD-2026-32836

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 3%
public exploits
0
none known

Summary

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

drm/gem: Fix inconsistent plane dimension calculation in drm_gem_fb_init_with_funcs()

drm_gem_fb_init_with_funcs() computes sub-sampled plane dimensions using plain integer division:

unsigned int width = mode_cmd->width / (i ? info->hsub : 1); unsigned int height = mode_cmd->height / (i ? info->vsub : 1);

However, the ioctl-level framebuffer_check() in drm_framebuffer.c uses drm_format_info_plane_width/height() which round up dimensions via DIV_ROUND_UP(). This inconsistency corrupts the subsequent GEM object size check for certain pixel format and dimension combinations.

For example, with NV12 (vsub=2) and a 1-pixel-tall framebuffer the GEM size validation path sees height=0 instead of height=1. The expression (height - 1) then wraps to UINT_MAX as an unsigned int, causing min_size to overflow and wrap back to a small value. A tiny GEM object therefore passes the size guard, yet when the GPU accesses the chroma plane it will read or write memory beyond the object's bounds.

Fix by replacing the open-coded divisions with drm_format_info_plane_width() and drm_format_info_plane_height(), which use DIV_ROUND_UP() and match the calculation already used in framebuffer_check().

Patch / fix

  • Linux Linux 5.10.258, 5.15.209, 6.1.175, 6.6.140, 6.12.90, 6.18.32, 7.0.9, 7.1
  • linux Debian 12 6.1.176-1
  • linux Debian 13 6.12.90-1
  • linux Debian 14 7.0.9-1

debian advisories DEBIAN-CVE-2026-46209

  • linux Ubuntu 22.04 LTS 5.15.0-186.196
  • linux Ubuntu 24.04 LTS 6.8.0-136.136
  • linux Ubuntu 26.04 LTS 7.0.0-28.28
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1112.119
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1061.64
  • linux-aws Ubuntu 26.04 LTS 7.0.0-1009.9
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1112.122
  • linux-gcp Ubuntu 24.04 LTS 6.8.0-1064.72

ubuntu advisories UBUNTU-CVE-2026-46209

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 4.18.0-553.140.1.rt7.481.el8_10
  • kernel-rt-kvm RHEL 8 4.18.0-553.140.1.rt7.481.el8_10
  • kernel-rt-core RHEL 8 4.18.0-553.140.1.rt7.481.el8_10
  • kernel-rt-modules RHEL 8 4.18.0-553.140.1.rt7.481.el8_10
  • kernel-rt-debug-kvm RHEL 8 4.18.0-553.140.1.rt7.481.el8_10
  • kernel-rt-debug-core RHEL 8 4.18.0-553.140.1.rt7.481.el8_10
  • kernel-rt-debug-modules RHEL 8 4.18.0-553.140.1.rt7.481.el8_10
  • kernel-rt-modules-extra RHEL 8 4.18.0-553.140.1.rt7.481.el8_10

red hat advisories RHSA-2026:61351RHSA-2026:47739RHSA-2026:47633RHSA-2026:47632RHSA-2026:44385RHSA-2026:43231

  • kernel-default SLES 16.0, SLE High Availability Extension 16.0, Linux Micro 6.2 +1 more 6.12.0-160000.37.1
  • kernel-rt Linux Micro 6.2 6.12.0-160000.37.1
  • kernel-64kb SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 6.12.0-160000.37.1
  • kernel-source SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 6.12.0-160000.37.1
  • kernel-default-base SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 6.12.0-160000.37.1.160000.2.19
  • kernel-syms SLES 16.0, Linux Micro Extras 6.2, SLES for SAP applications 16.0 6.12.0-160000.37.1
  • kernel-azure SLES 16.0, SLES for SAP applications 16.0 6.12.0-160000.37.1
  • kernel-obs-qa SLES 16.0, SLES for SAP applications 16.0 6.12.0-160000.37.1

suse advisories SUSE-SU-2026:23237-1SUSE-SU-2026:23068-1SUSE-SU-2026:23221-1SUSE-SU-2026:23231-1SUSE-SU-2026:23066-1SUSE-SU-2026:22433-1

  • kernel-rt openSUSE Leap 16.0 6.12.0-160000.37.1
  • dtb-aarch64 openSUSE Leap 16.0 6.12.0-160000.37.1
  • kernel-64kb openSUSE Leap 16.0 6.12.0-160000.37.1
  • kernel-syms openSUSE Leap 16.0 6.12.0-160000.37.1
  • kernel-azure openSUSE Leap 16.0 6.12.0-160000.37.1
  • kernel-obs-qa openSUSE Leap 16.0 6.12.0-160000.37.1
  • kernel-source openSUSE Leap 16.0 6.12.0-160000.37.1
  • kernel-default openSUSE Leap 16.0 6.12.0-160000.37.1

opensuse advisories openSUSE-SU-2026:21555-1openSUSE-SU-2026:10954-1

  • kernel-rt AlmaLinux 8 4.18.0-553.140.1.rt7.481.el8_10
  • kernel-rt-core AlmaLinux 8 4.18.0-553.140.1.rt7.481.el8_10
  • kernel-rt-modules AlmaLinux 8 4.18.0-553.140.1.rt7.481.el8_10
  • kernel-rt-debug-core AlmaLinux 8 4.18.0-553.140.1.rt7.481.el8_10
  • kernel-rt-debug-modules AlmaLinux 8 4.18.0-553.140.1.rt7.481.el8_10
  • kernel-rt-modules-extra AlmaLinux 8 4.18.0-553.140.1.rt7.481.el8_10
  • kernel-rt-debug-modules-extra AlmaLinux 8 4.18.0-553.140.1.rt7.481.el8_10
  • kernel AlmaLinux 8 4.18.0-553.140.1.el8_10

almalinux advisories ALSA-2026:36348ALSA-2026:36349ALSA-2026:36018ALSA-2026:34911

  • kernel Rocky Linux 9 5.14.0-687.22.1.el9_8

rocky linux advisories RLSA-2026:36018

  • kernel Azure Linux 3.0 6.6.141.1-1

azure linux advisories AZL-88985

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-2026-46209 updated cvss 7.1

kernel: drm/gem: Fix inconsistent plane dimension calculation in drm_gem_fb_init_with_funcs()

  • 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.9.6) libperf 5.14.0-570.129.1.el9_6, kernel-debuginfo-common-s390x 5.14.0-570.129.1.el9_6, kernel-debuginfo-common-x86_64 5.14.0-570.129.1.el9_6, kernel-debuginfo-common-aarch64 5.14.0-570.129.1.el9_6, kernel-debuginfo-common-ppc64le 5.14.0-570.129.1.el9_6
    fixed: vendor fix RHSA-2026:44385
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-687.22.1.el9_8, perf 5.14.0-687.22.1.el9_8, rtla 5.14.0-687.22.1.el9_8, python3-perf 5.14.0-687.22.1.el9_8, kernel-devel-matched 5.14.0-687.22.1.el9_8, kernel-64k-devel-matched 5.14.0-687.22.1.el9_8, +7 more
    fixed: vendor fix RHSA-2026:36018
  • Red Hat Enterprise Linux AppStream (v. 10) rv 6.12.0-211.30.1.el10_2, perf 6.12.0-211.30.1.el10_2, rtla 6.12.0-211.30.1.el10_2, python3-perf 6.12.0-211.30.1.el10_2, kernel-devel-matched 6.12.0-211.30.1.el10_2, kernel-64k-devel-matched 6.12.0-211.30.1.el10_2, +7 more
    fixed: vendor fix RHSA-2026:34911
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) perf 5.14.0-284.183.1.el9_2, rtla 5.14.0-284.183.1.el9_2, kernel-devel-matched 5.14.0-284.183.1.el9_2, kernel-64k-devel-matched 5.14.0-284.183.1.el9_2, kernel-debug-devel-matched 5.14.0-284.183.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.183.1.el9_2, +5 more
    fixed: vendor fix RHSA-2026:47739
  • Red Hat Enterprise Linux AppStream E4S (v.9.4) rv 5.14.0-427.139.1.el9_4, perf 5.14.0-427.139.1.el9_4, rtla 5.14.0-427.139.1.el9_4, kernel-devel-matched 5.14.0-427.139.1.el9_4, kernel-64k-devel-matched 5.14.0-427.139.1.el9_4, kernel-debug-devel-matched 5.14.0-427.139.1.el9_4, +6 more
    fixed: vendor fix RHSA-2026:43231
  • Red Hat Enterprise Linux AppStream EUS (v. 10.0) rv 6.12.0-55.99.1.el10_0, perf 6.12.0-55.99.1.el10_0, rtla 6.12.0-55.99.1.el10_0, python3-perf 6.12.0-55.99.1.el10_0, kernel-devel-matched 6.12.0-55.99.1.el10_0, kernel-64k-devel-matched 6.12.0-55.99.1.el10_0, +7 more
    fixed: vendor fix RHSA-2026:61351
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) rv 5.14.0-570.129.1.el9_6, perf 5.14.0-570.129.1.el9_6, rtla 5.14.0-570.129.1.el9_6, python3-perf 5.14.0-570.129.1.el9_6, kernel-devel-matched 5.14.0-570.129.1.el9_6, kernel-64k-devel-matched 5.14.0-570.129.1.el9_6, +7 more
    fixed: vendor fix RHSA-2026:44385
show 32 more
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.140.1.el8_10, kernel 4.18.0-553.140.1.el8_10, bpftool 4.18.0-553.140.1.el8_10, kernel-core 4.18.0-553.140.1.el8_10, kernel-tools 4.18.0-553.140.1.el8_10, python3-perf 4.18.0-553.140.1.el8_10, +15 more
    fixed: vendor fix RHSA-2026:36349
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-687.22.1.el9_8, kernel-64k 5.14.0-687.22.1.el9_8, kernel-core 5.14.0-687.22.1.el9_8, kernel-tools 5.14.0-687.22.1.el9_8, kernel-modules 5.14.0-687.22.1.el9_8, kernel-64k-core 5.14.0-687.22.1.el9_8, +27 more
    fixed: vendor fix RHSA-2026:36018
  • Red Hat Enterprise Linux BaseOS (v. 10) kernel 6.12.0-211.30.1.el10_2, kernel-64k 6.12.0-211.30.1.el10_2, kernel-core 6.12.0-211.30.1.el10_2, kernel-tools 6.12.0-211.30.1.el10_2, kernel-modules 6.12.0-211.30.1.el10_2, kernel-64k-core 6.12.0-211.30.1.el10_2, +28 more
    fixed: vendor fix RHSA-2026:34911
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) perf 4.18.0-305.199.1.el8_4, kernel 4.18.0-305.199.1.el8_4, bpftool 4.18.0-305.199.1.el8_4, kernel-core 4.18.0-305.199.1.el8_4, kernel-tools 4.18.0-305.199.1.el8_4, python3-perf 4.18.0-305.199.1.el8_4, +8 more
    fixed: vendor fix RHSA-2026:47633
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) perf 4.18.0-372.201.1.el8_6, kernel 4.18.0-372.201.1.el8_6, bpftool 4.18.0-372.201.1.el8_6, kernel-core 4.18.0-372.201.1.el8_6, kernel-tools 4.18.0-372.201.1.el8_6, python3-perf 4.18.0-372.201.1.el8_6, +8 more
    fixed: vendor fix RHSA-2026:40068
  • Red Hat Enterprise Linux BaseOS E4S (v.8.8) perf 4.18.0-477.152.1.el8_8, kernel 4.18.0-477.152.1.el8_8, bpftool 4.18.0-477.152.1.el8_8, kernel-core 4.18.0-477.152.1.el8_8, kernel-tools 4.18.0-477.152.1.el8_8, python3-perf 4.18.0-477.152.1.el8_8, +9 more
    fixed: vendor fix RHSA-2026:40760
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool 7.0.0-284.183.1.el9_2, kernel 5.14.0-284.183.1.el9_2, kernel-64k 5.14.0-284.183.1.el9_2, kernel-core 5.14.0-284.183.1.el9_2, kernel-tools 5.14.0-284.183.1.el9_2, python3-perf 5.14.0-284.183.1.el9_2, +28 more
    fixed: vendor fix RHSA-2026:47739
  • Red Hat Enterprise Linux BaseOS E4S (v.9.4) bpftool 7.3.0-427.139.1.el9_4, kernel 5.14.0-427.139.1.el9_4, kernel-64k 5.14.0-427.139.1.el9_4, kernel-core 5.14.0-427.139.1.el9_4, kernel-tools 5.14.0-427.139.1.el9_4, python3-perf 5.14.0-427.139.1.el9_4, +28 more
    fixed: vendor fix RHSA-2026:43231
  • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) kernel 6.12.0-55.99.1.el10_0, kernel-64k 6.12.0-55.99.1.el10_0, kernel-core 6.12.0-55.99.1.el10_0, kernel-tools 6.12.0-55.99.1.el10_0, kernel-modules 6.12.0-55.99.1.el10_0, kernel-64k-core 6.12.0-55.99.1.el10_0, +27 more
    fixed: vendor fix RHSA-2026:61351
  • Red Hat Enterprise Linux BaseOS EUS (v.9.6) kernel 5.14.0-570.129.1.el9_6, kernel-64k 5.14.0-570.129.1.el9_6, kernel-core 5.14.0-570.129.1.el9_6, kernel-tools 5.14.0-570.129.1.el9_6, kernel-modules 5.14.0-570.129.1.el9_6, kernel-64k-core 5.14.0-570.129.1.el9_6, +27 more
    fixed: vendor fix RHSA-2026:44385
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) perf 4.18.0-305.199.1.el8_4, kernel 4.18.0-305.199.1.el8_4, bpftool 4.18.0-305.199.1.el8_4, kernel-core 4.18.0-305.199.1.el8_4, kernel-tools 4.18.0-305.199.1.el8_4, python3-perf 4.18.0-305.199.1.el8_4, +8 more
    fixed: vendor fix RHSA-2026:47633
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6) perf 4.18.0-372.201.1.el8_6, kernel 4.18.0-372.201.1.el8_6, bpftool 4.18.0-372.201.1.el8_6, kernel-core 4.18.0-372.201.1.el8_6, kernel-tools 4.18.0-372.201.1.el8_6, python3-perf 4.18.0-372.201.1.el8_6, +8 more
    fixed: vendor fix RHSA-2026:40068
  • Red Hat Enterprise Linux BaseOS TUS (v.8.8) perf 4.18.0-477.152.1.el8_8, kernel 4.18.0-477.152.1.el8_8, bpftool 4.18.0-477.152.1.el8_8, kernel-core 4.18.0-477.152.1.el8_8, kernel-tools 4.18.0-477.152.1.el8_8, python3-perf 4.18.0-477.152.1.el8_8, +8 more
    fixed: vendor fix RHSA-2026:40760
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libperf 5.14.0-687.22.1.el9_8, kernel-debuginfo-common-s390x 5.14.0-687.22.1.el9_8, kernel-debuginfo-common-x86_64 5.14.0-687.22.1.el9_8, kernel-debuginfo-common-aarch64 5.14.0-687.22.1.el9_8, kernel-debuginfo-common-ppc64le 5.14.0-687.22.1.el9_8
    fixed: vendor fix RHSA-2026:36018
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libperf 6.12.0-211.30.1.el10_2, kernel-debuginfo-common-s390x 6.12.0-211.30.1.el10_2, kernel-debuginfo-common-x86_64 6.12.0-211.30.1.el10_2, kernel-debuginfo-common-aarch64 6.12.0-211.30.1.el10_2, kernel-debuginfo-common-ppc64le 6.12.0-211.30.1.el10_2
    fixed: vendor fix RHSA-2026:34911
  • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) libperf 6.12.0-55.99.1.el10_0, kernel-debuginfo-common-s390x 6.12.0-55.99.1.el10_0, kernel-debuginfo-common-x86_64 6.12.0-55.99.1.el10_0, kernel-debuginfo-common-aarch64 6.12.0-55.99.1.el10_0, kernel-debuginfo-common-ppc64le 6.12.0-55.99.1.el10_0
    fixed: vendor fix RHSA-2026:61351
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.140.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.140.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.140.1.el8_10
    fixed: vendor fix RHSA-2026:36349
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.140.1.rt7.481.el8_10, kernel-rt-kvm 4.18.0-553.140.1.rt7.481.el8_10, kernel-rt-core 4.18.0-553.140.1.rt7.481.el8_10, kernel-rt-modules 4.18.0-553.140.1.rt7.481.el8_10, kernel-rt-debug-kvm 4.18.0-553.140.1.rt7.481.el8_10, kernel-rt-debug-core 4.18.0-553.140.1.rt7.481.el8_10, +4 more
    fixed: vendor fix RHSA-2026:36348
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-687.22.1.el9_8, kernel-rt-64k 5.14.0-687.22.1.el9_8, kernel-rt-core 5.14.0-687.22.1.el9_8, kernel-rt-modules 5.14.0-687.22.1.el9_8, kernel-rt-64k-core 5.14.0-687.22.1.el9_8, kernel-rt-debug-core 5.14.0-687.22.1.el9_8, +14 more
    fixed: vendor fix RHSA-2026:36018
  • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt 6.12.0-211.30.1.el10_2, kernel-rt-64k 6.12.0-211.30.1.el10_2, kernel-rt-core 6.12.0-211.30.1.el10_2, kernel-rt-modules 6.12.0-211.30.1.el10_2, kernel-rt-64k-core 6.12.0-211.30.1.el10_2, kernel-rt-debug-core 6.12.0-211.30.1.el10_2, +14 more
    fixed: vendor fix RHSA-2026:34911
  • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt 5.14.0-284.183.1.rt14.468.el9_2, kernel-rt-core 5.14.0-284.183.1.rt14.468.el9_2, kernel-rt-modules 5.14.0-284.183.1.rt14.468.el9_2, kernel-rt-debug-core 5.14.0-284.183.1.rt14.468.el9_2, kernel-rt-modules-core 5.14.0-284.183.1.rt14.468.el9_2, kernel-rt-debug-modules 5.14.0-284.183.1.rt14.468.el9_2, +4 more
    fixed: vendor fix RHSA-2026:47632
  • Red Hat Enterprise Linux Real Time E4S (v.9.4) kernel-rt 5.14.0-427.139.1.el9_4, kernel-rt-core 5.14.0-427.139.1.el9_4, kernel-rt-modules 5.14.0-427.139.1.el9_4, kernel-rt-debug-core 5.14.0-427.139.1.el9_4, kernel-rt-modules-core 5.14.0-427.139.1.el9_4, kernel-rt-debug-modules 5.14.0-427.139.1.el9_4, +4 more
    fixed: vendor fix RHSA-2026:43231
  • Red Hat Enterprise Linux Real Time EUS (v. 10.0) kernel-rt 6.12.0-55.99.1.el10_0, kernel-rt-64k 6.12.0-55.99.1.el10_0, kernel-rt-core 6.12.0-55.99.1.el10_0, kernel-rt-modules 6.12.0-55.99.1.el10_0, kernel-rt-64k-core 6.12.0-55.99.1.el10_0, kernel-rt-debug-core 6.12.0-55.99.1.el10_0, +14 more
    fixed: vendor fix RHSA-2026:61351
  • Red Hat Enterprise Linux Real Time EUS (v.9.6) kernel-rt 5.14.0-570.129.1.el9_6, kernel-rt-64k 5.14.0-570.129.1.el9_6, kernel-rt-core 5.14.0-570.129.1.el9_6, kernel-rt-modules 5.14.0-570.129.1.el9_6, kernel-rt-64k-core 5.14.0-570.129.1.el9_6, kernel-rt-debug-core 5.14.0-570.129.1.el9_6, +14 more
    fixed: vendor fix RHSA-2026:44385
  • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-687.22.1.el9_8, kernel-rt-core 5.14.0-687.22.1.el9_8, kernel-rt-modules 5.14.0-687.22.1.el9_8, kernel-rt-debug-core 5.14.0-687.22.1.el9_8, kernel-rt-modules-core 5.14.0-687.22.1.el9_8, kernel-rt-debug-modules 5.14.0-687.22.1.el9_8, +4 more
    fixed: vendor fix RHSA-2026:36018
  • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt 6.12.0-211.30.1.el10_2, kernel-rt-core 6.12.0-211.30.1.el10_2, kernel-rt-modules 6.12.0-211.30.1.el10_2, kernel-rt-debug-core 6.12.0-211.30.1.el10_2, kernel-rt-modules-core 6.12.0-211.30.1.el10_2, kernel-rt-debug-modules 6.12.0-211.30.1.el10_2, +4 more
    fixed: vendor fix RHSA-2026:34911
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt 5.14.0-284.183.1.rt14.468.el9_2, kernel-rt-kvm 5.14.0-284.183.1.rt14.468.el9_2, kernel-rt-core 5.14.0-284.183.1.rt14.468.el9_2, kernel-rt-modules 5.14.0-284.183.1.rt14.468.el9_2, kernel-rt-debug-kvm 5.14.0-284.183.1.rt14.468.el9_2, kernel-rt-debug-core 5.14.0-284.183.1.rt14.468.el9_2, +6 more
    fixed: vendor fix RHSA-2026:47632
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4) kernel-rt 5.14.0-427.139.1.el9_4, kernel-rt-kvm 5.14.0-427.139.1.el9_4, kernel-rt-core 5.14.0-427.139.1.el9_4, kernel-rt-modules 5.14.0-427.139.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.139.1.el9_4, kernel-rt-debug-core 5.14.0-427.139.1.el9_4, +6 more
    fixed: vendor fix RHSA-2026:43231
  • Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) kernel-rt 6.12.0-55.99.1.el10_0, kernel-rt-kvm 6.12.0-55.99.1.el10_0, kernel-rt-core 6.12.0-55.99.1.el10_0, kernel-rt-modules 6.12.0-55.99.1.el10_0, kernel-rt-debug-kvm 6.12.0-55.99.1.el10_0, kernel-rt-debug-core 6.12.0-55.99.1.el10_0, +6 more
    fixed: vendor fix RHSA-2026:61351
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6) kernel-rt 5.14.0-570.129.1.el9_6, kernel-rt-kvm 5.14.0-570.129.1.el9_6, kernel-rt-core 5.14.0-570.129.1.el9_6, kernel-rt-modules 5.14.0-570.129.1.el9_6, kernel-rt-debug-kvm 5.14.0-570.129.1.el9_6, kernel-rt-debug-core 5.14.0-570.129.1.el9_6, +6 more
    fixed: vendor fix RHSA-2026:44385
  • Red Hat Enterprise Linux RT (v. 8) kernel-rt 4.18.0-553.140.1.rt7.481.el8_10, kernel-rt-core 4.18.0-553.140.1.rt7.481.el8_10, kernel-rt-modules 4.18.0-553.140.1.rt7.481.el8_10, kernel-rt-debug-core 4.18.0-553.140.1.rt7.481.el8_10, kernel-rt-debug-modules 4.18.0-553.140.1.rt7.481.el8_10, kernel-rt-modules-extra 4.18.0-553.140.1.rt7.481.el8_10, +2 more
    fixed: vendor fix RHSA-2026:36348
  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more
    not affected: vulnerable code not present

1 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 ICSA-26-295-16 updated cvss 7.8

Siemens SIMATIC S7-1500 TM MFP

  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
    affected: mitigation, no fix available

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
23 d ago

Exploit prediction

0.14% chance of exploitation in the next 30 days, higher than 3% 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

Affected products

  • Linux Linux
  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem

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.