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Fencer Vulns
high 7.1

CVE-2026-46054 json

selinux: fix overlayfs mmap() and mprotect() access checks

published 2026-05-27 5 mo ago modified 2026-10-19 20 d ago also EUVD-2026-32436

cvss
7.1
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 2%
public exploits
0
none known

Summary

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

selinux: fix overlayfs mmap() and mprotect() access checks

The existing SELinux security model for overlayfs is to allow access if the current task is able to access the top level file (the "user" file) and the mounter's credentials are sufficient to access the lower level file (the "backing" file). Unfortunately, the current code does not properly enforce these access controls for both mmap() and mprotect() operations on overlayfs filesystems.

This patch makes use of the newly created security_mmap_backing_file() LSM hook to provide the missing backing file enforcement for mmap() operations, and leverages the backing file API and new LSM blob to provide the necessary information to properly enforce the mprotect() access controls.

Patch / fix

  • Linux Linux 6.6.144, 6.12.95, 6.18.38, 7.0.4, 7.1
  • Red Hat Red Hat Enterprise Linux 10 0:6.12.0-211.22.1.el10_2
  • Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support 0:6.12.0-55.95.1.el10_0
  • Red Hat Red Hat Enterprise Linux 8 0:4.18.0-553.137.1.el8_10, 0:4.18.0-553.137.1.rt7.478.el8_10
  • Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:4.18.0-305.201.1.el8_4
  • Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On 0:4.18.0-305.201.1.el8_4
  • Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:4.18.0-372.208.1.el8_6
  • Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On 0:4.18.0-372.208.1.el8_6
  • Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service 0:4.18.0-477.158.1.el8_8
  • Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions 0:4.18.0-477.158.1.el8_8
  • Red Hat Red Hat Enterprise Linux 9 0:5.14.0-687.19.1.el9_8
  • Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions 0:5.14.0-427.143.1.el9_4
  • Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support 0:5.14.0-570.132.1.el9_6
  • linux Debian 13 6.12.95-1
  • linux Debian 14 7.0.4-1

debian advisories DEBIAN-CVE-2026-46054

  • linux Ubuntu 26.04 LTS 7.0.0-27.27
  • linux-aws Ubuntu 26.04 LTS 7.0.0-1008.8
  • linux-gcp Ubuntu 26.04 LTS 7.0.0-1007.7
  • linux-ibm Ubuntu 26.04 LTS 7.0.0-1009.9
  • linux-azure Ubuntu 26.04 LTS 7.0.0-1010.10
  • linux-raspi Ubuntu 26.04 LTS 7.0.0-1014.14
  • linux-riscv Ubuntu 26.04 LTS 7.0.0-27.27.1
  • linux-nvidia Ubuntu 26.04 LTS 7.0.0-1013.13

ubuntu advisories UBUNTU-CVE-2026-46054

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 5.14.0-687.19.1.el9_8
  • rv RHEL 9 5.14.0-687.19.1.el9_8
  • perf RHEL 9 5.14.0-687.19.1.el9_8
  • rtla RHEL 9 5.14.0-687.19.1.el9_8
  • libperf RHEL 9 5.14.0-687.19.1.el9_8
  • kernel-rt RHEL 9 5.14.0-687.19.1.el9_8
  • kernel-64k RHEL 9 5.14.0-687.19.1.el9_8
  • kernel-core RHEL 9 5.14.0-687.19.1.el9_8

red hat advisories RHSA-2026:67723RHSA-2026:67721RHSA-2026:59473RHSA-2026:59091RHSA-2026:52764RHSA-2026:52649

  • kernel-source openSUSE Tumbleweed 7.0.11-1.1

opensuse advisories openSUSE-SU-2026:10954-1

  • kernel AlmaLinux 9 5.14.0-687.19.1.el9_8
  • rv AlmaLinux 9 5.14.0-687.19.1.el9_8
  • perf AlmaLinux 9 5.14.0-687.19.1.el9_8
  • rtla AlmaLinux 9 5.14.0-687.19.1.el9_8
  • libperf AlmaLinux 9 5.14.0-687.19.1.el9_8
  • kernel-rt AlmaLinux 9 5.14.0-687.19.1.el9_8
  • kernel-64k AlmaLinux 9 5.14.0-687.19.1.el9_8
  • kernel-core AlmaLinux 9 5.14.0-687.19.1.el9_8

almalinux advisories ALSA-2026:30848ALSA-2026:30129ALSA-2026:27811ALSA-2026:27812ALSA-2026:25191

  • kernel-rt Rocky Linux 8 4.18.0-553.137.1.rt7.478.el8_10
  • kernel Rocky Linux 8 4.18.0-553.137.1.el8_10
  • kernel Rocky Linux 10 6.12.0-211.22.1.el10_2

rocky linux advisories RLSA-2026:27812RLSA-2026:27811RLSA-2026:25191

  • kernel Azure Linux 3.0 6.6.144.1-1

azure linux advisories AZL-88715

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-2026-46054 updated cvss 7.0

kernel: selinux: fix overlayfs mmap() and mprotect() access checks

  • Red Hat Enterprise Linux 7 kernel-rt, kernel-rt-kvm, kernel-rt-trace, kernel-rt-debug-kvm, kernel-rt-trace-kvm 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 5.14.0-570.132.1.el9_6, kernel-debuginfo-common-s390x 5.14.0-570.132.1.el9_6, kernel-debuginfo-common-x86_64 5.14.0-570.132.1.el9_6, kernel-debuginfo-common-aarch64 5.14.0-570.132.1.el9_6, kernel-debuginfo-common-ppc64le 5.14.0-570.132.1.el9_6
    fixed: vendor fix RHSA-2026:52667
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-687.19.1.el9_8, perf 5.14.0-687.19.1.el9_8, rtla 5.14.0-687.19.1.el9_8, python3-perf 5.14.0-687.19.1.el9_8, kernel-devel-matched 5.14.0-687.19.1.el9_8, kernel-64k-devel-matched 5.14.0-687.19.1.el9_8, +7 more
    fixed: vendor fix RHSA-2026:30848
  • Red Hat Enterprise Linux AppStream (v. 10) rv 6.12.0-211.22.1.el10_2, perf 6.12.0-211.22.1.el10_2, rtla 6.12.0-211.22.1.el10_2, python3-perf 6.12.0-211.22.1.el10_2, kernel-devel-matched 6.12.0-211.22.1.el10_2, kernel-64k-devel-matched 6.12.0-211.22.1.el10_2, +7 more
    fixed: vendor fix RHSA-2026:25191
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) perf 5.14.0-284.191.1.el9_2, rtla 5.14.0-284.191.1.el9_2, kernel-devel-matched 5.14.0-284.191.1.el9_2, kernel-64k-devel-matched 5.14.0-284.191.1.el9_2, kernel-debug-devel-matched 5.14.0-284.191.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.191.1.el9_2, +5 more
    fixed: vendor fix RHSA-2026:67723
  • Red Hat Enterprise Linux AppStream E4S (v.9.4) rv 5.14.0-427.143.1.el9_4, perf 5.14.0-427.143.1.el9_4, rtla 5.14.0-427.143.1.el9_4, kernel-devel-matched 5.14.0-427.143.1.el9_4, kernel-64k-devel-matched 5.14.0-427.143.1.el9_4, kernel-debug-devel-matched 5.14.0-427.143.1.el9_4, +6 more
    fixed: vendor fix RHSA-2026:51746
  • Red Hat Enterprise Linux AppStream EUS (v. 10.0) rv 6.12.0-55.95.1.el10_0, perf 6.12.0-55.95.1.el10_0, rtla 6.12.0-55.95.1.el10_0, python3-perf 6.12.0-55.95.1.el10_0, kernel-devel-matched 6.12.0-55.95.1.el10_0, kernel-64k-devel-matched 6.12.0-55.95.1.el10_0, +7 more
    fixed: vendor fix RHSA-2026:52764
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) rv 5.14.0-570.132.1.el9_6, perf 5.14.0-570.132.1.el9_6, rtla 5.14.0-570.132.1.el9_6, python3-perf 5.14.0-570.132.1.el9_6, kernel-devel-matched 5.14.0-570.132.1.el9_6, kernel-64k-devel-matched 5.14.0-570.132.1.el9_6, +7 more
    fixed: vendor fix RHSA-2026:52667
show 31 more
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.137.1.el8_10, kernel 4.18.0-553.137.1.el8_10, bpftool 4.18.0-553.137.1.el8_10, kernel-core 4.18.0-553.137.1.el8_10, kernel-tools 4.18.0-553.137.1.el8_10, python3-perf 4.18.0-553.137.1.el8_10, +15 more
    fixed: vendor fix RHSA-2026:27811
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-687.19.1.el9_8, kernel-64k 5.14.0-687.19.1.el9_8, kernel-core 5.14.0-687.19.1.el9_8, kernel-tools 5.14.0-687.19.1.el9_8, kernel-modules 5.14.0-687.19.1.el9_8, kernel-64k-core 5.14.0-687.19.1.el9_8, +27 more
    fixed: vendor fix RHSA-2026:30848
  • Red Hat Enterprise Linux BaseOS (v. 10) kernel 6.12.0-211.22.1.el10_2, kernel-64k 6.12.0-211.22.1.el10_2, kernel-core 6.12.0-211.22.1.el10_2, kernel-tools 6.12.0-211.22.1.el10_2, kernel-modules 6.12.0-211.22.1.el10_2, kernel-64k-core 6.12.0-211.22.1.el10_2, +28 more
    fixed: vendor fix RHSA-2026:25191
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) perf 4.18.0-305.201.1.el8_4, kernel 4.18.0-305.201.1.el8_4, bpftool 4.18.0-305.201.1.el8_4, kernel-core 4.18.0-305.201.1.el8_4, kernel-tools 4.18.0-305.201.1.el8_4, python3-perf 4.18.0-305.201.1.el8_4, +8 more
    fixed: vendor fix RHSA-2026:59091
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) perf 4.18.0-372.208.1.el8_6, kernel 4.18.0-372.208.1.el8_6, bpftool 4.18.0-372.208.1.el8_6, kernel-core 4.18.0-372.208.1.el8_6, kernel-tools 4.18.0-372.208.1.el8_6, python3-perf 4.18.0-372.208.1.el8_6, +8 more
    fixed: vendor fix RHSA-2026:59473
  • Red Hat Enterprise Linux BaseOS E4S (v.8.8) perf 4.18.0-477.158.1.el8_8, kernel 4.18.0-477.158.1.el8_8, bpftool 4.18.0-477.158.1.el8_8, kernel-core 4.18.0-477.158.1.el8_8, kernel-tools 4.18.0-477.158.1.el8_8, python3-perf 4.18.0-477.158.1.el8_8, +9 more
    fixed: vendor fix RHSA-2026:52649
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool 7.0.0-284.191.1.el9_2, kernel 5.14.0-284.191.1.el9_2, kernel-64k 5.14.0-284.191.1.el9_2, kernel-core 5.14.0-284.191.1.el9_2, kernel-tools 5.14.0-284.191.1.el9_2, python3-perf 5.14.0-284.191.1.el9_2, +28 more
    fixed: vendor fix RHSA-2026:67723
  • Red Hat Enterprise Linux BaseOS E4S (v.9.4) bpftool 7.3.0-427.143.1.el9_4, kernel 5.14.0-427.143.1.el9_4, kernel-64k 5.14.0-427.143.1.el9_4, kernel-core 5.14.0-427.143.1.el9_4, kernel-tools 5.14.0-427.143.1.el9_4, python3-perf 5.14.0-427.143.1.el9_4, +28 more
    fixed: vendor fix RHSA-2026:51746
  • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) kernel 6.12.0-55.95.1.el10_0, kernel-64k 6.12.0-55.95.1.el10_0, kernel-core 6.12.0-55.95.1.el10_0, kernel-tools 6.12.0-55.95.1.el10_0, kernel-modules 6.12.0-55.95.1.el10_0, kernel-64k-core 6.12.0-55.95.1.el10_0, +27 more
    fixed: vendor fix RHSA-2026:52764
  • Red Hat Enterprise Linux BaseOS EUS (v.9.6) kernel 5.14.0-570.132.1.el9_6, kernel-64k 5.14.0-570.132.1.el9_6, kernel-core 5.14.0-570.132.1.el9_6, kernel-tools 5.14.0-570.132.1.el9_6, kernel-modules 5.14.0-570.132.1.el9_6, kernel-64k-core 5.14.0-570.132.1.el9_6, +27 more
    fixed: vendor fix RHSA-2026:52667
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) perf 4.18.0-305.201.1.el8_4, kernel 4.18.0-305.201.1.el8_4, bpftool 4.18.0-305.201.1.el8_4, kernel-core 4.18.0-305.201.1.el8_4, kernel-tools 4.18.0-305.201.1.el8_4, python3-perf 4.18.0-305.201.1.el8_4, +8 more
    fixed: vendor fix RHSA-2026:59091
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6) perf 4.18.0-372.208.1.el8_6, kernel 4.18.0-372.208.1.el8_6, bpftool 4.18.0-372.208.1.el8_6, kernel-core 4.18.0-372.208.1.el8_6, kernel-tools 4.18.0-372.208.1.el8_6, python3-perf 4.18.0-372.208.1.el8_6, +8 more
    fixed: vendor fix RHSA-2026:59473
  • Red Hat Enterprise Linux BaseOS TUS (v.8.8) perf 4.18.0-477.158.1.el8_8, kernel 4.18.0-477.158.1.el8_8, bpftool 4.18.0-477.158.1.el8_8, kernel-core 4.18.0-477.158.1.el8_8, kernel-tools 4.18.0-477.158.1.el8_8, python3-perf 4.18.0-477.158.1.el8_8, +8 more
    fixed: vendor fix RHSA-2026:52649
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libperf 5.14.0-687.19.1.el9_8, kernel-debuginfo-common-s390x 5.14.0-687.19.1.el9_8, kernel-debuginfo-common-x86_64 5.14.0-687.19.1.el9_8, kernel-debuginfo-common-aarch64 5.14.0-687.19.1.el9_8, kernel-debuginfo-common-ppc64le 5.14.0-687.19.1.el9_8
    fixed: vendor fix RHSA-2026:30848
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libperf 6.12.0-211.22.1.el10_2, kernel-debuginfo-common-s390x 6.12.0-211.22.1.el10_2, kernel-debuginfo-common-x86_64 6.12.0-211.22.1.el10_2, kernel-debuginfo-common-aarch64 6.12.0-211.22.1.el10_2, kernel-debuginfo-common-ppc64le 6.12.0-211.22.1.el10_2
    fixed: vendor fix RHSA-2026:25191
  • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) libperf 6.12.0-55.95.1.el10_0, kernel-debuginfo-common-s390x 6.12.0-55.95.1.el10_0, kernel-debuginfo-common-x86_64 6.12.0-55.95.1.el10_0, kernel-debuginfo-common-aarch64 6.12.0-55.95.1.el10_0, kernel-debuginfo-common-ppc64le 6.12.0-55.95.1.el10_0
    fixed: vendor fix RHSA-2026:52764
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.137.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.137.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.137.1.el8_10
    fixed: vendor fix RHSA-2026:27811
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.137.1.rt7.478.el8_10, kernel-rt-kvm 4.18.0-553.137.1.rt7.478.el8_10, kernel-rt-core 4.18.0-553.137.1.rt7.478.el8_10, kernel-rt-modules 4.18.0-553.137.1.rt7.478.el8_10, kernel-rt-debug-kvm 4.18.0-553.137.1.rt7.478.el8_10, kernel-rt-debug-core 4.18.0-553.137.1.rt7.478.el8_10, +4 more
    fixed: vendor fix RHSA-2026:27812
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-687.19.1.el9_8, kernel-rt-64k 5.14.0-687.19.1.el9_8, kernel-rt-core 5.14.0-687.19.1.el9_8, kernel-rt-modules 5.14.0-687.19.1.el9_8, kernel-rt-64k-core 5.14.0-687.19.1.el9_8, kernel-rt-debug-core 5.14.0-687.19.1.el9_8, +14 more
    fixed: vendor fix RHSA-2026:30848
  • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt 6.12.0-211.22.1.el10_2, kernel-rt-64k 6.12.0-211.22.1.el10_2, kernel-rt-core 6.12.0-211.22.1.el10_2, kernel-rt-modules 6.12.0-211.22.1.el10_2, kernel-rt-64k-core 6.12.0-211.22.1.el10_2, kernel-rt-debug-core 6.12.0-211.22.1.el10_2, +14 more
    fixed: vendor fix RHSA-2026:25191
  • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt 5.14.0-284.191.1.rt14.476.el9_2, kernel-rt-core 5.14.0-284.191.1.rt14.476.el9_2, kernel-rt-modules 5.14.0-284.191.1.rt14.476.el9_2, kernel-rt-debug-core 5.14.0-284.191.1.rt14.476.el9_2, kernel-rt-modules-core 5.14.0-284.191.1.rt14.476.el9_2, kernel-rt-debug-modules 5.14.0-284.191.1.rt14.476.el9_2, +4 more
    fixed: vendor fix RHSA-2026:67721
  • Red Hat Enterprise Linux Real Time E4S (v.9.4) kernel-rt 5.14.0-427.143.1.el9_4, kernel-rt-core 5.14.0-427.143.1.el9_4, kernel-rt-modules 5.14.0-427.143.1.el9_4, kernel-rt-debug-core 5.14.0-427.143.1.el9_4, kernel-rt-modules-core 5.14.0-427.143.1.el9_4, kernel-rt-debug-modules 5.14.0-427.143.1.el9_4, +4 more
    fixed: vendor fix RHSA-2026:51746
  • Red Hat Enterprise Linux Real Time EUS (v. 10.0) kernel-rt 6.12.0-55.95.1.el10_0, kernel-rt-64k 6.12.0-55.95.1.el10_0, kernel-rt-core 6.12.0-55.95.1.el10_0, kernel-rt-modules 6.12.0-55.95.1.el10_0, kernel-rt-64k-core 6.12.0-55.95.1.el10_0, kernel-rt-debug-core 6.12.0-55.95.1.el10_0, +14 more
    fixed: vendor fix RHSA-2026:52764
  • Red Hat Enterprise Linux Real Time EUS (v.9.6) kernel-rt 5.14.0-570.132.1.el9_6, kernel-rt-64k 5.14.0-570.132.1.el9_6, kernel-rt-core 5.14.0-570.132.1.el9_6, kernel-rt-modules 5.14.0-570.132.1.el9_6, kernel-rt-64k-core 5.14.0-570.132.1.el9_6, kernel-rt-debug-core 5.14.0-570.132.1.el9_6, +14 more
    fixed: vendor fix RHSA-2026:52667
  • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-687.19.1.el9_8, kernel-rt-core 5.14.0-687.19.1.el9_8, kernel-rt-modules 5.14.0-687.19.1.el9_8, kernel-rt-debug-core 5.14.0-687.19.1.el9_8, kernel-rt-modules-core 5.14.0-687.19.1.el9_8, kernel-rt-debug-modules 5.14.0-687.19.1.el9_8, +4 more
    fixed: vendor fix RHSA-2026:30848
  • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt 6.12.0-211.22.1.el10_2, kernel-rt-core 6.12.0-211.22.1.el10_2, kernel-rt-modules 6.12.0-211.22.1.el10_2, kernel-rt-debug-core 6.12.0-211.22.1.el10_2, kernel-rt-modules-core 6.12.0-211.22.1.el10_2, kernel-rt-debug-modules 6.12.0-211.22.1.el10_2, +4 more
    fixed: vendor fix RHSA-2026:25191
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt 5.14.0-284.191.1.rt14.476.el9_2, kernel-rt-kvm 5.14.0-284.191.1.rt14.476.el9_2, kernel-rt-core 5.14.0-284.191.1.rt14.476.el9_2, kernel-rt-modules 5.14.0-284.191.1.rt14.476.el9_2, kernel-rt-debug-kvm 5.14.0-284.191.1.rt14.476.el9_2, kernel-rt-debug-core 5.14.0-284.191.1.rt14.476.el9_2, +6 more
    fixed: vendor fix RHSA-2026:67721
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4) kernel-rt 5.14.0-427.143.1.el9_4, kernel-rt-kvm 5.14.0-427.143.1.el9_4, kernel-rt-core 5.14.0-427.143.1.el9_4, kernel-rt-modules 5.14.0-427.143.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.143.1.el9_4, kernel-rt-debug-core 5.14.0-427.143.1.el9_4, +6 more
    fixed: vendor fix RHSA-2026:51746
  • Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) kernel-rt 6.12.0-55.95.1.el10_0, kernel-rt-kvm 6.12.0-55.95.1.el10_0, kernel-rt-core 6.12.0-55.95.1.el10_0, kernel-rt-modules 6.12.0-55.95.1.el10_0, kernel-rt-debug-kvm 6.12.0-55.95.1.el10_0, kernel-rt-debug-core 6.12.0-55.95.1.el10_0, +6 more
    fixed: vendor fix RHSA-2026:52764
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6) kernel-rt 5.14.0-570.132.1.el9_6, kernel-rt-kvm 5.14.0-570.132.1.el9_6, kernel-rt-core 5.14.0-570.132.1.el9_6, kernel-rt-modules 5.14.0-570.132.1.el9_6, kernel-rt-debug-kvm 5.14.0-570.132.1.el9_6, kernel-rt-debug-core 5.14.0-570.132.1.el9_6, +6 more
    fixed: vendor fix RHSA-2026:52667
  • Red Hat Enterprise Linux RT (v. 8) kernel-rt 4.18.0-553.137.1.rt7.478.el8_10, kernel-rt-core 4.18.0-553.137.1.rt7.478.el8_10, kernel-rt-modules 4.18.0-553.137.1.rt7.478.el8_10, kernel-rt-debug-core 4.18.0-553.137.1.rt7.478.el8_10, kernel-rt-debug-modules 4.18.0-553.137.1.rt7.478.el8_10, kernel-rt-modules-extra 4.18.0-553.137.1.rt7.478.el8_10, +2 more
    fixed: vendor fix RHSA-2026:27812

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
23 d ago

Exploit prediction

0.12% chance of exploitation in the next 30 days, higher than 2% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CISA ADP 3.1 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Linux Linux
  • Red Hat Red Hat Enterprise Linux 10
  • Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support
  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  • Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
  • Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  • Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On
  • Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service
  • Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
  • Red Hat Red Hat Enterprise Linux 9
  • Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions
  • Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support
  • Red Hat Red Hat Enterprise Linux 6
  • Red Hat Red Hat Enterprise Linux 7

Classification

Weakness
  • CWE-280 Improper Handling of Insufficient Permissions or Privileges
  • CWE-862 Missing Authorization
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.