RHSA-2026:54246MediumCVSS 7.0

Red Hat Security Advisory: kernel security update

Published
August 12, 2026
Last Modified
August 12, 2026

🔗 CVE IDs covered (2)

CVE-2026-45991 →CVE-2026-53009 →

📋 Description

CVE-2026-45991 — kernel: udf: fix partition descriptor append bookkeeping CVE-2026-53009 — kernel: ice: fix double-free of tx_buf skb

🎯 Affected products122

  • Red Hat Enterprise Linux BaseOS (v. 8)
  • Red Hat Enterprise Linux CRB (v. 8)
  • bpftool-0:4.18.0-553.155.1.el8_10.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • bpftool-0:4.18.0-553.155.1.el8_10.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • bpftool-0:4.18.0-553.155.1.el8_10.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • bpftool-0:4.18.0-553.155.1.el8_10.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • bpftool-debuginfo-0:4.18.0-553.155.1.el8_10.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • bpftool-debuginfo-0:4.18.0-553.155.1.el8_10.aarch64 as a component of Red Hat Enterprise Linux CRB (v. 8)
  • bpftool-debuginfo-0:4.18.0-553.155.1.el8_10.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • bpftool-debuginfo-0:4.18.0-553.155.1.el8_10.ppc64le as a component of Red Hat Enterprise Linux CRB (v. 8)
  • bpftool-debuginfo-0:4.18.0-553.155.1.el8_10.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • bpftool-debuginfo-0:4.18.0-553.155.1.el8_10.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • bpftool-debuginfo-0:4.18.0-553.155.1.el8_10.x86_64 as a component of Red Hat Enterprise Linux CRB (v. 8)
  • kernel-0:4.18.0-553.155.1.el8_10.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kernel-0:4.18.0-553.155.1.el8_10.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kernel-0:4.18.0-553.155.1.el8_10.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kernel-0:4.18.0-553.155.1.el8_10.src as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kernel-0:4.18.0-553.155.1.el8_10.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kernel-abi-stablelists-0:4.18.0-553.155.1.el8_10.noarch as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kernel-core-0:4.18.0-553.155.1.el8_10.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kernel-core-0:4.18.0-553.155.1.el8_10.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kernel-core-0:4.18.0-553.155.1.el8_10.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kernel-core-0:4.18.0-553.155.1.el8_10.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kernel-debug-0:4.18.0-553.155.1.el8_10.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kernel-debug-0:4.18.0-553.155.1.el8_10.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kernel-debug-0:4.18.0-553.155.1.el8_10.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kernel-debug-0:4.18.0-553.155.1.el8_10.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kernel-debug-core-0:4.18.0-553.155.1.el8_10.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kernel-debug-core-0:4.18.0-553.155.1.el8_10.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kernel-debug-core-0:4.18.0-553.155.1.el8_10.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • +92 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. Red Hat recommends treating all kernel errata as security-relevant. Given the kernel's fundamental role, any bug has a higher chance of impacting system security, even if that impact only becomes clear after a fix is published. Therefore, Red Hat prioritizes delivering fixes that improve our customers' overall security posture. Because of this proactive approach, a patch may be associated with a CVE assignment at a future date. Retroactive CVE assignments are always documented in the corresponding errata and on Red Hat's CVE pages. We strongly advise against delaying updates, as doing so may leave your system exposed when protections are already available. Workaround: To mitigate this issue, prevent module ice from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.

🔗 References (5)