RHSA-2026:95367: Important: kernel security update

Published Nov 4, 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: writeback: fix race between cgroupwritebackumount() and inodeswitchwbs() (CVE-2026-64378) kernel: sunrpc: pin svcxprt across the asynchronous TLS handshake callback (CVE-2026-72222) kernel: sunrpc: wait for in-flight TLS handshake callback when cancel loses race (CVE-2026-72221) kernel: fs/resctrl: Fix use-after-free during unmount (CVE-2026-72080) kernel: sctp: clear newtransport when removing a peer (CVE-2026-74586) kernel: openvswitch: Fix CT limit teardown use-after-free (CVE-2026-89488) kernel: PCI/sysfs: Add lockdown checks to legacy I/O and memory handlers (CVE-2026-90315) kernel: kernel: xfs: Unauthorized data modification via improper file size exchange handling (CVE-2026-98974) 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

104 affected componentsFixes available
Red Hat Red Hat Enterprise Linux for IBM z Systems
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for ARM 64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for Power, little endian
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle
Red Hat Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for Power, little endian - 4 years of support
Red Hat Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Red Hat Enterprise Linux for IBM z Systems - 4 years of updates
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for Power, little endian
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for x86_64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for x86_64
Red Hat Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for ARM 64
Red Hat Red Hat Enterprise Linux Hidden Content for x86_64
Red Hat Red Hat CodeReady Linux Builder for IBM z Systems
Red Hat Red Hat CodeReady Linux Builder for ARM 64
Red Hat Red Hat CodeReady Linux Builder for x86_64
redhat/kernel-debug-debuginfo<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/kernel-debug-devel<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/kernel-debug-devel-matched<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/kernel-debuginfo<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/kernel-devel<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/kernel-devel-matched<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/kernel-doc<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/kernel-headers<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/kernel-tools-debuginfo<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/libperf-debuginfo<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/perf<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/perf-debuginfo<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/python3-perf<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/python3-perf-debuginfo<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/rtla<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/rv<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/kernel-debug-debuginfo<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/kernel-debug-devel<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/kernel-debug-devel-matched<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/kernel-debuginfo<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/kernel-debuginfo-common-s390x<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/kernel-devel<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/kernel-devel-matched<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/kernel-headers<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/kernel-tools-debuginfo<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/kernel-zfcpdump-debuginfo<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/kernel-zfcpdump-devel<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/kernel-zfcpdump-devel-matched<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/libperf-debuginfo<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/perf<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/perf-debuginfo<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/python3-perf<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/python3-perf-debuginfo<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/rtla<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/rv<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/kernel<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/kernel-debug-debuginfo<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/kernel-debug-devel<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/kernel-debug-devel-matched<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/kernel-debuginfo<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/kernel-debuginfo-common-ppc64le<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/kernel-devel<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/kernel-devel-matched<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/kernel-headers<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/kernel-tools-debuginfo<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/libperf-debuginfo<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/perf<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/perf-debuginfo<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/python3-perf<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/python3-perf-debuginfo<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/rtla<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/rv<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2
redhat/kernel<64k-debug-debuginfo-6.12.0-211.74.1.el10_2.aa
64k-debug-debuginfo-6.12.0-211.74.1.el10_2.aa
redhat/kernel<64k-debug-devel-6.12.0-211.74.1.el10_2.aa
64k-debug-devel-6.12.0-211.74.1.el10_2.aa
redhat/kernel<64k-debug-devel-matched-6.12.0-211.74.1.el10_2.aa
64k-debug-devel-matched-6.12.0-211.74.1.el10_2.aa
redhat/kernel<64k-debuginfo-6.12.0-211.74.1.el10_2.aa
64k-debuginfo-6.12.0-211.74.1.el10_2.aa
redhat/kernel<64k-devel-6.12.0-211.74.1.el10_2.aa
64k-devel-6.12.0-211.74.1.el10_2.aa
redhat/kernel<64k-devel-matched-6.12.0-211.74.1.el10_2.aa
64k-devel-matched-6.12.0-211.74.1.el10_2.aa
redhat/kernel-debug-debuginfo<6.12.0-211.74.1.el10_2.aa
6.12.0-211.74.1.el10_2.aa
redhat/kernel-debug-devel<6.12.0-211.74.1.el10_2.aa
6.12.0-211.74.1.el10_2.aa
redhat/kernel-debug-devel-matched<6.12.0-211.74.1.el10_2.aa
6.12.0-211.74.1.el10_2.aa
redhat/kernel-debuginfo<6.12.0-211.74.1.el10_2.aa
6.12.0-211.74.1.el10_2.aa
redhat/kernel-debuginfo-common-aarch64<6.12.0-211.74.1.el10_2.aa
6.12.0-211.74.1.el10_2.aa
redhat/kernel-devel<6.12.0-211.74.1.el10_2.aa
6.12.0-211.74.1.el10_2.aa
redhat/kernel-devel-matched<6.12.0-211.74.1.el10_2.aa
6.12.0-211.74.1.el10_2.aa
redhat/kernel-headers<6.12.0-211.74.1.el10_2.aa
6.12.0-211.74.1.el10_2.aa
redhat/kernel-rt<64k-debug-debuginfo-6.12.0-211.74.1.el10_2.aa
64k-debug-debuginfo-6.12.0-211.74.1.el10_2.aa
redhat/kernel-rt<64k-debuginfo-6.12.0-211.74.1.el10_2.aa
64k-debuginfo-6.12.0-211.74.1.el10_2.aa
redhat/kernel-rt-debug-debuginfo<6.12.0-211.74.1.el10_2.aa
6.12.0-211.74.1.el10_2.aa
redhat/kernel-tools-debuginfo<6.12.0-211.74.1.el10_2.aa
6.12.0-211.74.1.el10_2.aa
redhat/libperf-debuginfo<6.12.0-211.74.1.el10_2.aa
6.12.0-211.74.1.el10_2.aa
redhat/perf<6.12.0-211.74.1.el10_2.aa
6.12.0-211.74.1.el10_2.aa
redhat/perf-debuginfo<6.12.0-211.74.1.el10_2.aa
6.12.0-211.74.1.el10_2.aa
redhat/python3-perf<6.12.0-211.74.1.el10_2.aa
6.12.0-211.74.1.el10_2.aa
redhat/python3-perf-debuginfo<6.12.0-211.74.1.el10_2.aa
6.12.0-211.74.1.el10_2.aa
redhat/rtla<6.12.0-211.74.1.el10_2.aa
6.12.0-211.74.1.el10_2.aa
redhat/rv<6.12.0-211.74.1.el10_2.aa
6.12.0-211.74.1.el10_2.aa
redhat/kernel<6.12.0-211.74.1.el10_2.aa
6.12.0-211.74.1.el10_2.aa
redhat/kernel-modules-internal<6.12.0-211.74.1.el10_2
6.12.0-211.74.1.el10_2

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2
  2. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2
  3. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2
  4. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2
  5. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2
  6. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2
  7. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2
  8. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2
  9. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2
  10. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2
  11. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2
  12. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2
  13. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2
  14. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2
  15. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2
  16. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2
  17. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2
  18. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2
  19. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2
  20. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2
  21. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2
  22. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2
  23. Upgrade

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

    Fixed in 64k-debug-debuginfo-6.12.0-211.74.1.el10_2.aa
  24. Upgrade

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

    Fixed in 64k-debug-devel-6.12.0-211.74.1.el10_2.aa
  25. Upgrade

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

    Fixed in 64k-debug-devel-matched-6.12.0-211.74.1.el10_2.aa
  26. Upgrade

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

    Fixed in 64k-debuginfo-6.12.0-211.74.1.el10_2.aa
  27. Upgrade

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

    Fixed in 64k-devel-6.12.0-211.74.1.el10_2.aa
  28. Upgrade

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

    Fixed in 64k-devel-matched-6.12.0-211.74.1.el10_2.aa
  29. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2.aa
  30. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2.aa
  31. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2.aa
  32. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2.aa
  33. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2.aa
  34. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2.aa
  35. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2.aa
  36. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2.aa
  37. Upgrade

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

    Fixed in 64k-debug-debuginfo-6.12.0-211.74.1.el10_2.aa
  38. Upgrade

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

    Fixed in 64k-debuginfo-6.12.0-211.74.1.el10_2.aa
  39. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2.aa
  40. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2.aa
  41. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2.aa
  42. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2.aa
  43. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2.aa
  44. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2.aa
  45. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2.aa
  46. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2.aa
  47. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2.aa
  48. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2.aa
  49. Upgrade

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

    Fixed in 6.12.0-211.74.1.el10_2
  50. Operational

    Reboot the system for the kernel update to take effect.

Event History

Nov 4, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software
Advisory Published
via Red Hat·10:58 PM
Data Sourced
via Red Hat·10:58 PM
Severity

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