RHSA-2026:54482: Important: kernel security update

Published Aug 13, 2026
·
Updated

Important: kernel security update

Other sources

The kernel packages contain the Linux kernel, the core of any Linux operating system.Security Fix(es): kernel: net/sched: actapi: use RCU with deferred freeing for action lifecycle (CVE-2026-53264) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

— Red Hat

Affected Software

86 affected componentsFixes available
Red Hat Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux Server - AUS
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for ARM 64 - 4 years of updates
Red Hat Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux for IBM z Systems - 4 years of updates
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle
redhat/bpftool-debuginfo<7.3.0-427.144.1.el9_4
7.3.0-427.144.1.el9_4
redhat/kernel<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/kernel-debug-debuginfo<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/kernel-debug-devel<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/kernel-debug-devel-matched<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/kernel-devel<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/kernel-devel-matched<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/kernel-doc<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/kernel-headers<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/kernel-tools-debuginfo<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/libperf-debuginfo<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/perf<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/perf-debuginfo<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/python3-perf-debuginfo<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/rtla<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/rv<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/bpftool<7.3.0-427.144.1.el9_4
7.3.0-427.144.1.el9_4
redhat/bpftool-debuginfo<7.3.0-427.144.1.el9_4
7.3.0-427.144.1.el9_4
redhat/kernel<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/kernel-debug-debuginfo<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/kernel-debug-devel<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/kernel-debug-devel-matched<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/kernel-debuginfo-common-ppc64le<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/kernel-devel<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/kernel-devel-matched<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/kernel-headers<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/kernel-tools-debuginfo<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/libperf-debuginfo<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/perf<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/perf-debuginfo<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/python3-perf-debuginfo<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/rtla<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/rv<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/bpftool<7.3.0-427.144.1.el9_4.aa
7.3.0-427.144.1.el9_4.aa
redhat/bpftool-debuginfo<7.3.0-427.144.1.el9_4.aa
7.3.0-427.144.1.el9_4.aa
redhat/kernel<5.14.0-427.144.1.el9_4.aa
5.14.0-427.144.1.el9_4.aa
redhat/kernel<64k-debug-debuginfo-5.14.0-427.144.1.el9_4.aa
64k-debug-debuginfo-5.14.0-427.144.1.el9_4.aa
redhat/kernel<64k-debug-devel-5.14.0-427.144.1.el9_4.aa
64k-debug-devel-5.14.0-427.144.1.el9_4.aa
redhat/kernel<64k-debug-devel-matched-5.14.0-427.144.1.el9_4.aa
64k-debug-devel-matched-5.14.0-427.144.1.el9_4.aa
redhat/kernel<64k-debuginfo-5.14.0-427.144.1.el9_4.aa
64k-debuginfo-5.14.0-427.144.1.el9_4.aa
redhat/kernel<64k-devel-5.14.0-427.144.1.el9_4.aa
64k-devel-5.14.0-427.144.1.el9_4.aa
redhat/kernel<64k-devel-matched-5.14.0-427.144.1.el9_4.aa
64k-devel-matched-5.14.0-427.144.1.el9_4.aa
redhat/kernel-debug-debuginfo<5.14.0-427.144.1.el9_4.aa
5.14.0-427.144.1.el9_4.aa
redhat/kernel-debug-devel<5.14.0-427.144.1.el9_4.aa
5.14.0-427.144.1.el9_4.aa
redhat/kernel-debug-devel-matched<5.14.0-427.144.1.el9_4.aa
5.14.0-427.144.1.el9_4.aa
redhat/kernel-debuginfo<5.14.0-427.144.1.el9_4.aa
5.14.0-427.144.1.el9_4.aa
redhat/kernel-debuginfo-common-aarch64<5.14.0-427.144.1.el9_4.aa
5.14.0-427.144.1.el9_4.aa
redhat/kernel-devel<5.14.0-427.144.1.el9_4.aa
5.14.0-427.144.1.el9_4.aa
redhat/kernel-devel-matched<5.14.0-427.144.1.el9_4.aa
5.14.0-427.144.1.el9_4.aa
redhat/kernel-headers<5.14.0-427.144.1.el9_4.aa
5.14.0-427.144.1.el9_4.aa
redhat/kernel-tools-debuginfo<5.14.0-427.144.1.el9_4.aa
5.14.0-427.144.1.el9_4.aa
redhat/libperf-debuginfo<5.14.0-427.144.1.el9_4.aa
5.14.0-427.144.1.el9_4.aa
redhat/perf<5.14.0-427.144.1.el9_4.aa
5.14.0-427.144.1.el9_4.aa
redhat/perf-debuginfo<5.14.0-427.144.1.el9_4.aa
5.14.0-427.144.1.el9_4.aa
redhat/python3-perf-debuginfo<5.14.0-427.144.1.el9_4.aa
5.14.0-427.144.1.el9_4.aa
redhat/rtla<5.14.0-427.144.1.el9_4.aa
5.14.0-427.144.1.el9_4.aa
redhat/rv<5.14.0-427.144.1.el9_4.aa
5.14.0-427.144.1.el9_4.aa
redhat/bpftool<7.3.0-427.144.1.el9_4
7.3.0-427.144.1.el9_4
redhat/bpftool-debuginfo<7.3.0-427.144.1.el9_4
7.3.0-427.144.1.el9_4
redhat/kernel-debug-debuginfo<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/kernel-debug-devel<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/kernel-debug-devel-matched<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/kernel-debuginfo<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/kernel-debuginfo-common-s390x<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/kernel-devel<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/kernel-devel-matched<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/kernel-headers<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/kernel-tools-debuginfo<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/kernel-zfcpdump-debuginfo<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/kernel-zfcpdump-devel<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/kernel-zfcpdump-devel-matched<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/libperf-debuginfo<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/perf<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/perf-debuginfo<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/python3-perf-debuginfo<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/rtla<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4
redhat/rv<5.14.0-427.144.1.el9_4
5.14.0-427.144.1.el9_4

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/bpftool-debuginfo to a version that resolves this vulnerability.

    Fixed in 7.3.0-427.144.1.el9_4
  2. Upgrade

    Upgrade redhat/kernel to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4
  3. Upgrade

    Upgrade redhat/kernel-debug-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4
  4. Upgrade

    Upgrade redhat/kernel-debug-devel to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4
  5. Upgrade

    Upgrade redhat/kernel-debug-devel-matched to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4
  6. Upgrade

    Upgrade redhat/kernel-devel to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4
  7. Upgrade

    Upgrade redhat/kernel-devel-matched to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4
  8. Upgrade

    Upgrade redhat/kernel-doc to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4
  9. Upgrade

    Upgrade redhat/kernel-headers to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4
  10. Upgrade

    Upgrade redhat/kernel-tools-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4
  11. Upgrade

    Upgrade redhat/libperf-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4
  12. Upgrade

    Upgrade redhat/perf to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4
  13. Upgrade

    Upgrade redhat/perf-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4
  14. Upgrade

    Upgrade redhat/python3-perf-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4
  15. Upgrade

    Upgrade redhat/rtla to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4
  16. Upgrade

    Upgrade redhat/rv to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4
  17. Upgrade

    Upgrade redhat/bpftool to a version that resolves this vulnerability.

    Fixed in 7.3.0-427.144.1.el9_4
  18. Upgrade

    Upgrade redhat/kernel-debuginfo-common-ppc64le to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4
  19. Upgrade

    Upgrade redhat/bpftool to a version that resolves this vulnerability.

    Fixed in 7.3.0-427.144.1.el9_4.aa
  20. Upgrade

    Upgrade redhat/bpftool-debuginfo to a version that resolves this vulnerability.

    Fixed in 7.3.0-427.144.1.el9_4.aa
  21. Upgrade

    Upgrade redhat/kernel to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4.aa
  22. Upgrade

    Upgrade redhat/kernel to a version that resolves this vulnerability.

    Fixed in 64k-debug-debuginfo-5.14.0-427.144.1.el9_4.aa
  23. Upgrade

    Upgrade redhat/kernel to a version that resolves this vulnerability.

    Fixed in 64k-debug-devel-5.14.0-427.144.1.el9_4.aa
  24. Upgrade

    Upgrade redhat/kernel to a version that resolves this vulnerability.

    Fixed in 64k-debug-devel-matched-5.14.0-427.144.1.el9_4.aa
  25. Upgrade

    Upgrade redhat/kernel to a version that resolves this vulnerability.

    Fixed in 64k-debuginfo-5.14.0-427.144.1.el9_4.aa
  26. Upgrade

    Upgrade redhat/kernel to a version that resolves this vulnerability.

    Fixed in 64k-devel-5.14.0-427.144.1.el9_4.aa
  27. Upgrade

    Upgrade redhat/kernel to a version that resolves this vulnerability.

    Fixed in 64k-devel-matched-5.14.0-427.144.1.el9_4.aa
  28. Upgrade

    Upgrade redhat/kernel-debug-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4.aa
  29. Upgrade

    Upgrade redhat/kernel-debug-devel to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4.aa
  30. Upgrade

    Upgrade redhat/kernel-debug-devel-matched to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4.aa
  31. Upgrade

    Upgrade redhat/kernel-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4.aa
  32. Upgrade

    Upgrade redhat/kernel-debuginfo-common-aarch64 to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4.aa
  33. Upgrade

    Upgrade redhat/kernel-devel to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4.aa
  34. Upgrade

    Upgrade redhat/kernel-devel-matched to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4.aa
  35. Upgrade

    Upgrade redhat/kernel-headers to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4.aa
  36. Upgrade

    Upgrade redhat/kernel-tools-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4.aa
  37. Upgrade

    Upgrade redhat/libperf-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4.aa
  38. Upgrade

    Upgrade redhat/perf to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4.aa
  39. Upgrade

    Upgrade redhat/perf-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4.aa
  40. Upgrade

    Upgrade redhat/python3-perf-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4.aa
  41. Upgrade

    Upgrade redhat/rtla to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4.aa
  42. Upgrade

    Upgrade redhat/rv to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4.aa
  43. Upgrade

    Upgrade redhat/kernel-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4
  44. Upgrade

    Upgrade redhat/kernel-debuginfo-common-s390x to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4
  45. Upgrade

    Upgrade redhat/kernel-zfcpdump-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4
  46. Upgrade

    Upgrade redhat/kernel-zfcpdump-devel to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4
  47. Upgrade

    Upgrade redhat/kernel-zfcpdump-devel-matched to a version that resolves this vulnerability.

    Fixed in 5.14.0-427.144.1.el9_4
  48. Upgrade

    Upgrade kernel (Linux kernel) to a version that resolves this vulnerability.

    Patch CVE-2026-53264
  49. Operational

    Reboot the system after applying the kernel update so the changes take effect.

Event History

Aug 13, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software
Advisory Published
via Red Hat·06:49 AM
Data Sourced
via Red Hat·06:49 AM
Severity
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Frequently Asked Questions

1

What is the severity of RHSA-2026:54482?

The severity of RHSA-2026:54482 is rated as high with a score of 7.

2

What is the impact of the vulnerability identified as RHSA-2026:54482?

RHSA-2026:54482 addresses a security issue related to the action lifecycle in the Linux kernel, potentially impacting system stability.

3

How do I fix RHSA-2026:54482?

To fix RHSA-2026:54482, you should update your kernel packages to the latest version provided by Red Hat.

4

Which software is affected by RHSA-2026:54482?

The affected software includes several kernel packages and related debug and development libraries from Red Hat.

5

Is there any specific CVE associated with RHSA-2026:54482?

Yes, the specific CVE associated with RHSA-2026:54482 is CVE-2026-53264.

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RHSA-2026:54482 - Important: kernel security update - SecAlerts