RHSA-2024:1377HighCVSS 7.8

Red Hat Security Advisory: kpatch-patch security update

Published
March 19, 2024
Last Modified
August 6, 2026

🔗 CVE IDs covered (3)

CVE-2023-3611 →CVE-2023-31436 →CVE-2024-0646 →

📋 Description

CVE-2023-3611 — kernel: net/sched: sch_qfq component can be exploited if in qfq_change_agg function happens qfq_enqueue overhead CVE-2023-31436 — kernel: out-of-bounds write in qfq_change_class function CVE-2024-0646 — kernel: ktls overwrites readonly memory pages when using function splice with a ktls socket as destination

🎯 Affected products29

  • Red Hat Enterprise Linux BaseOS E4S (v.8.4)
  • kpatch-patch-4_18_0-305_103_1-0:1-4.el8_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.4)
  • kpatch-patch-4_18_0-305_103_1-0:1-4.el8_4.src as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.4)
  • kpatch-patch-4_18_0-305_103_1-0:1-4.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.4)
  • kpatch-patch-4_18_0-305_103_1-debuginfo-0:1-4.el8_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.4)
  • kpatch-patch-4_18_0-305_103_1-debuginfo-0:1-4.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.4)
  • kpatch-patch-4_18_0-305_103_1-debugsource-0:1-4.el8_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.4)
  • kpatch-patch-4_18_0-305_103_1-debugsource-0:1-4.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.4)
  • kpatch-patch-4_18_0-305_108_1-0:1-3.el8_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.4)
  • kpatch-patch-4_18_0-305_108_1-0:1-3.el8_4.src as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.4)
  • kpatch-patch-4_18_0-305_108_1-0:1-3.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.4)
  • kpatch-patch-4_18_0-305_108_1-debuginfo-0:1-3.el8_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.4)
  • kpatch-patch-4_18_0-305_108_1-debuginfo-0:1-3.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.4)
  • kpatch-patch-4_18_0-305_108_1-debugsource-0:1-3.el8_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.4)
  • kpatch-patch-4_18_0-305_108_1-debugsource-0:1-3.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.4)
  • kpatch-patch-4_18_0-305_114_1-0:1-2.el8_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.4)
  • kpatch-patch-4_18_0-305_114_1-0:1-2.el8_4.src as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.4)
  • kpatch-patch-4_18_0-305_114_1-0:1-2.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.4)
  • kpatch-patch-4_18_0-305_114_1-debuginfo-0:1-2.el8_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.4)
  • kpatch-patch-4_18_0-305_114_1-debuginfo-0:1-2.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.4)
  • kpatch-patch-4_18_0-305_114_1-debugsource-0:1-2.el8_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.4)
  • kpatch-patch-4_18_0-305_114_1-debugsource-0:1-2.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.4)
  • kpatch-patch-4_18_0-305_120_1-0:1-1.el8_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.4)
  • kpatch-patch-4_18_0-305_120_1-0:1-1.el8_4.src as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.4)
  • kpatch-patch-4_18_0-305_120_1-0:1-1.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.4)
  • kpatch-patch-4_18_0-305_120_1-debuginfo-0:1-1.el8_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.4)
  • kpatch-patch-4_18_0-305_120_1-debuginfo-0:1-1.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.4)
  • kpatch-patch-4_18_0-305_120_1-debugsource-0:1-1.el8_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.4)
  • kpatch-patch-4_18_0-305_120_1-debugsource-0:1-1.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v.8.4)

✅ 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 to skip loading the affected module sch_qfq onto the system until we have a fix available. This can be done by a blacklist mechanism and will ensure the driver is not loaded at the boot time. ~~~ How do I blacklist a kernel module to prevent it from loading automatically? https://access.redhat.com/solutions/41278 ~~~ Workaround: To mitigate this issue, prevent the module, sch_qfq from being loaded. Please see https://access.redhat.com/solutions/41278 for information on how to blacklist a kernel module to prevent it from loading automatically. Workaround: To mitigate this issue, prevent module tls 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 (6)