RHSA-2026:81449HighCVSS 7.8

Red Hat Security Advisory: kpatch-patch-5_14_0-427_100_1, kpatch-patch-5_14_0-427_113_1, kpatch-patch-5_14_0-427_126_1, kpatch-patch-5_14_0-427_146_1, and kpatch-patch-5_14_0-427_84_1 security update

Published
October 12, 2026
Last Modified
October 13, 2026

🔗 CVE IDs covered (3)

CVE-2026-64002 →CVE-2026-46181 →CVE-2026-52933 →

📋 Description

CVE-2026-46181 — kernel: RDMA/mlx4: Fix mis-use of RCU in mlx4_srq_event() CVE-2026-52933 — kernel: io_uring/poll: fix signed comparison in io_poll_get_ownership() CVE-2026-64002 — kernel: ipv4: free net->ipv4.sysctl_local_reserved_ports after unregister_net_sysctl_table()

🎯 Affected products36

  • Red Hat Enterprise Linux BaseOS E4S (v.9.4)
  • kpatch-patch-5_14_0-427_100_1-0:1-16.el9_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4)
  • kpatch-patch-5_14_0-427_100_1-0:1-16.el9_4.src as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4)
  • kpatch-patch-5_14_0-427_100_1-0:1-16.el9_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4)
  • kpatch-patch-5_14_0-427_100_1-debuginfo-0:1-16.el9_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4)
  • kpatch-patch-5_14_0-427_100_1-debuginfo-0:1-16.el9_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4)
  • kpatch-patch-5_14_0-427_100_1-debugsource-0:1-16.el9_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4)
  • kpatch-patch-5_14_0-427_100_1-debugsource-0:1-16.el9_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4)
  • kpatch-patch-5_14_0-427_113_1-0:1-14.el9_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4)
  • kpatch-patch-5_14_0-427_113_1-0:1-14.el9_4.src as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4)
  • kpatch-patch-5_14_0-427_113_1-0:1-14.el9_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4)
  • kpatch-patch-5_14_0-427_113_1-debuginfo-0:1-14.el9_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4)
  • kpatch-patch-5_14_0-427_113_1-debuginfo-0:1-14.el9_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4)
  • kpatch-patch-5_14_0-427_113_1-debugsource-0:1-14.el9_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4)
  • kpatch-patch-5_14_0-427_113_1-debugsource-0:1-14.el9_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4)
  • kpatch-patch-5_14_0-427_126_1-0:1-11.el9_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4)
  • kpatch-patch-5_14_0-427_126_1-0:1-11.el9_4.src as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4)
  • kpatch-patch-5_14_0-427_126_1-0:1-11.el9_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4)
  • kpatch-patch-5_14_0-427_126_1-debuginfo-0:1-11.el9_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4)
  • kpatch-patch-5_14_0-427_126_1-debuginfo-0:1-11.el9_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4)
  • kpatch-patch-5_14_0-427_126_1-debugsource-0:1-11.el9_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4)
  • kpatch-patch-5_14_0-427_126_1-debugsource-0:1-11.el9_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4)
  • kpatch-patch-5_14_0-427_146_1-0:1-2.el9_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4)
  • kpatch-patch-5_14_0-427_146_1-0:1-2.el9_4.src as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4)
  • kpatch-patch-5_14_0-427_146_1-0:1-2.el9_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4)
  • kpatch-patch-5_14_0-427_146_1-debuginfo-0:1-2.el9_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4)
  • kpatch-patch-5_14_0-427_146_1-debuginfo-0:1-2.el9_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4)
  • kpatch-patch-5_14_0-427_146_1-debugsource-0:1-2.el9_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4)
  • kpatch-patch-5_14_0-427_146_1-debugsource-0:1-2.el9_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4)
  • kpatch-patch-5_14_0-427_84_1-0:1-18.el9_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.9.4)
  • +6 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 Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

🔗 References (6)