RHSA-2026:13932HighCVSS 8.1

Red Hat Security Advisory: kernel security update

Published
May 6, 2026
Last Modified
October 30, 2026

🔗 CVE IDs covered (6)

CVE-2025-71238 →CVE-2026-23191 →CVE-2026-23401 →CVE-2026-31431 →CVE-2026-31532 →CVE-2026-43077 →

📋 Description

CVE-2025-71238 — kernel: Linux kernel (qla2xxx): Double free vulnerability leads to denial of service and potential privilege escalation. CVE-2026-23191 — kernel: ALSA: aloop: Fix racy access at PCM trigger CVE-2026-23401 — kernel: Linux kernel KVM: Privilege escalation or denial of service due to improper shadow page table entry handling CVE-2026-31431 — kernel: crypto: algif_aead - Revert to operating out-of-place CVE-2026-31532 — kernel: can: raw: fix ro->uniq use-after-free in raw_rcv() CVE-2026-43077 — kernel: crypto: algif_aead - Fix minimum RX size check for decryption

🎯 Affected products200

  • Red Hat CodeReady Linux Builder EUS (v.9.4)
  • Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • Red Hat Enterprise Linux Real Time EUS (v.9.4)
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4)
  • bpftool-0:7.3.0-427.124.1.el9_4.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • bpftool-0:7.3.0-427.124.1.el9_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • bpftool-0:7.3.0-427.124.1.el9_4.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • bpftool-0:7.3.0-427.124.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • bpftool-debuginfo-0:7.3.0-427.124.1.el9_4.aarch64 as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
  • bpftool-debuginfo-0:7.3.0-427.124.1.el9_4.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • bpftool-debuginfo-0:7.3.0-427.124.1.el9_4.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • bpftool-debuginfo-0:7.3.0-427.124.1.el9_4.ppc64le as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
  • bpftool-debuginfo-0:7.3.0-427.124.1.el9_4.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • bpftool-debuginfo-0:7.3.0-427.124.1.el9_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • bpftool-debuginfo-0:7.3.0-427.124.1.el9_4.s390x as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
  • bpftool-debuginfo-0:7.3.0-427.124.1.el9_4.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • bpftool-debuginfo-0:7.3.0-427.124.1.el9_4.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • bpftool-debuginfo-0:7.3.0-427.124.1.el9_4.x86_64 as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
  • bpftool-debuginfo-0:7.3.0-427.124.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • bpftool-debuginfo-0:7.3.0-427.124.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • bpftool-debuginfo-0:7.3.0-427.124.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux Real Time EUS (v.9.4)
  • bpftool-debuginfo-0:7.3.0-427.124.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4)
  • kernel-0:5.14.0-427.124.1.el9_4.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • kernel-0:5.14.0-427.124.1.el9_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • kernel-0:5.14.0-427.124.1.el9_4.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • kernel-0:5.14.0-427.124.1.el9_4.src as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • kernel-0:5.14.0-427.124.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • kernel-64k-0:5.14.0-427.124.1.el9_4.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • kernel-64k-core-0:5.14.0-427.124.1.el9_4.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • +170 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Workaround: To mitigate this issue, prevent module qla2xxx from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically. Workaround: See the security bulletin for a detailed mitigation procedure. Workaround: To mitigate this issue, prevent the `can` kernel module from loading if CAN functionality is not required. This can be achieved by blacklisting the module. Create a file named `/etc/modprobe.d/blacklist-can.conf` with the following content: ``` blacklist can install can /bin/true ``` After creating the file, regenerate the initramfs and reboot the system for the changes to take effect. ```bash dracut -f -v reboot ``` This mitigation may impact systems that rely on CAN interfaces for their operation.

🔗 References (8)