RHSA-2026:3810HighCVSS 7.0

Red Hat Security Advisory: kernel security update

Published
March 5, 2026
Last Modified
November 5, 2026

🔗 CVE IDs covered (1)

CVE-2026-23074 →

📋 Description

CVE-2026-23074 — kernel: Linux kernel: Use-after-free in teql queueing discipline can lead to privilege escalation

🎯 Affected products58

  • Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)
  • kernel-0:2.6.32-754.59.1.el6.i686 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • kernel-0:2.6.32-754.59.1.el6.s390x as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • kernel-0:2.6.32-754.59.1.el6.src as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • kernel-0:2.6.32-754.59.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • kernel-abi-whitelists-0:2.6.32-754.59.1.el6.noarch as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • kernel-debug-0:2.6.32-754.59.1.el6.i686 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • kernel-debug-0:2.6.32-754.59.1.el6.s390x as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • kernel-debug-0:2.6.32-754.59.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • kernel-debug-debuginfo-0:2.6.32-754.59.1.el6.i686 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • kernel-debug-debuginfo-0:2.6.32-754.59.1.el6.i686 as a component of Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)
  • kernel-debug-debuginfo-0:2.6.32-754.59.1.el6.s390x as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • kernel-debug-debuginfo-0:2.6.32-754.59.1.el6.s390x as a component of Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)
  • kernel-debug-debuginfo-0:2.6.32-754.59.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • kernel-debug-debuginfo-0:2.6.32-754.59.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)
  • kernel-debug-devel-0:2.6.32-754.59.1.el6.i686 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • kernel-debug-devel-0:2.6.32-754.59.1.el6.s390x as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • kernel-debug-devel-0:2.6.32-754.59.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • kernel-debuginfo-0:2.6.32-754.59.1.el6.i686 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • kernel-debuginfo-0:2.6.32-754.59.1.el6.i686 as a component of Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)
  • kernel-debuginfo-0:2.6.32-754.59.1.el6.s390x as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • kernel-debuginfo-0:2.6.32-754.59.1.el6.s390x as a component of Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)
  • kernel-debuginfo-0:2.6.32-754.59.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • kernel-debuginfo-0:2.6.32-754.59.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)
  • kernel-debuginfo-common-i686-0:2.6.32-754.59.1.el6.i686 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • kernel-debuginfo-common-i686-0:2.6.32-754.59.1.el6.i686 as a component of Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)
  • kernel-debuginfo-common-s390x-0:2.6.32-754.59.1.el6.s390x as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • kernel-debuginfo-common-s390x-0:2.6.32-754.59.1.el6.s390x as a component of Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)
  • kernel-debuginfo-common-x86_64-0:2.6.32-754.59.1.el6.x86_64 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • +28 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.

🔗 References (4)