RHSA-2024:1836MediumCVSS 7.0

Red Hat Security Advisory: kernel security, bug fix, and enhancement update

Published
April 16, 2024
Last Modified
August 6, 2026

🔗 CVE IDs covered (2)

CVE-2021-33631 →CVE-2023-6931 →

📋 Description

CVE-2021-33631 — kernel: ext4: kernel bug in ext4_write_inline_data_end() CVE-2023-6931 — kernel: Out of boundary write in perf_read_group() as result of overflow a perf_event's read_size

🎯 Affected products169

  • Red Hat CodeReady Linux Builder EUS (v.9.0)
  • Red Hat Enterprise Linux AppStream EUS (v.9.0)
  • Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • bpftool-0:5.14.0-70.97.1.el9_0.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • bpftool-0:5.14.0-70.97.1.el9_0.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • bpftool-0:5.14.0-70.97.1.el9_0.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • bpftool-0:5.14.0-70.97.1.el9_0.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • bpftool-debuginfo-0:5.14.0-70.97.1.el9_0.aarch64 as a component of Red Hat CodeReady Linux Builder EUS (v.9.0)
  • bpftool-debuginfo-0:5.14.0-70.97.1.el9_0.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.0)
  • bpftool-debuginfo-0:5.14.0-70.97.1.el9_0.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • bpftool-debuginfo-0:5.14.0-70.97.1.el9_0.ppc64le as a component of Red Hat CodeReady Linux Builder EUS (v.9.0)
  • bpftool-debuginfo-0:5.14.0-70.97.1.el9_0.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.0)
  • bpftool-debuginfo-0:5.14.0-70.97.1.el9_0.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • bpftool-debuginfo-0:5.14.0-70.97.1.el9_0.s390x as a component of Red Hat CodeReady Linux Builder EUS (v.9.0)
  • bpftool-debuginfo-0:5.14.0-70.97.1.el9_0.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.0)
  • bpftool-debuginfo-0:5.14.0-70.97.1.el9_0.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • bpftool-debuginfo-0:5.14.0-70.97.1.el9_0.x86_64 as a component of Red Hat CodeReady Linux Builder EUS (v.9.0)
  • bpftool-debuginfo-0:5.14.0-70.97.1.el9_0.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.0)
  • bpftool-debuginfo-0:5.14.0-70.97.1.el9_0.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • kernel-0:5.14.0-70.97.1.el9_0.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • kernel-0:5.14.0-70.97.1.el9_0.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • kernel-0:5.14.0-70.97.1.el9_0.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • kernel-0:5.14.0-70.97.1.el9_0.src as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • kernel-0:5.14.0-70.97.1.el9_0.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • kernel-abi-stablelists-0:5.14.0-70.97.1.el9_0.noarch as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • kernel-core-0:5.14.0-70.97.1.el9_0.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • kernel-core-0:5.14.0-70.97.1.el9_0.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • kernel-core-0:5.14.0-70.97.1.el9_0.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • kernel-core-0:5.14.0-70.97.1.el9_0.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • kernel-debug-0:5.14.0-70.97.1.el9_0.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • +139 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. 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. Workaround: It is not possible to trigger this issue with the default kernel.perf_event_paranoid sysctl value 2. You may check it with: cat /proc/sys/kernel/perf_event_paranoid

🔗 References (5)