Red Hat Security Advisory: kernel-rt security update
🔗 CVE IDs covered (2)
📋 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 products32
- Red Hat Enterprise Linux Real Time EUS (v.9.0)
- Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0)
- kernel-rt-0:5.14.0-70.97.1.rt21.169.el9_0.src as a component of Red Hat Enterprise Linux Real Time EUS (v.9.0)
- kernel-rt-0:5.14.0-70.97.1.rt21.169.el9_0.src as a component of Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0)
- kernel-rt-0:5.14.0-70.97.1.rt21.169.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time EUS (v.9.0)
- kernel-rt-0:5.14.0-70.97.1.rt21.169.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0)
- kernel-rt-core-0:5.14.0-70.97.1.rt21.169.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time EUS (v.9.0)
- kernel-rt-core-0:5.14.0-70.97.1.rt21.169.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0)
- kernel-rt-debug-0:5.14.0-70.97.1.rt21.169.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time EUS (v.9.0)
- kernel-rt-debug-0:5.14.0-70.97.1.rt21.169.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0)
- kernel-rt-debug-core-0:5.14.0-70.97.1.rt21.169.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time EUS (v.9.0)
- kernel-rt-debug-core-0:5.14.0-70.97.1.rt21.169.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0)
- kernel-rt-debug-debuginfo-0:5.14.0-70.97.1.rt21.169.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time EUS (v.9.0)
- kernel-rt-debug-debuginfo-0:5.14.0-70.97.1.rt21.169.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0)
- kernel-rt-debug-devel-0:5.14.0-70.97.1.rt21.169.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time EUS (v.9.0)
- kernel-rt-debug-devel-0:5.14.0-70.97.1.rt21.169.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0)
- kernel-rt-debug-kvm-0:5.14.0-70.97.1.rt21.169.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0)
- kernel-rt-debug-modules-0:5.14.0-70.97.1.rt21.169.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time EUS (v.9.0)
- kernel-rt-debug-modules-0:5.14.0-70.97.1.rt21.169.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0)
- kernel-rt-debug-modules-extra-0:5.14.0-70.97.1.rt21.169.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time EUS (v.9.0)
- kernel-rt-debug-modules-extra-0:5.14.0-70.97.1.rt21.169.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0)
- kernel-rt-debuginfo-0:5.14.0-70.97.1.rt21.169.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time EUS (v.9.0)
- kernel-rt-debuginfo-0:5.14.0-70.97.1.rt21.169.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0)
- kernel-rt-debuginfo-common-x86_64-0:5.14.0-70.97.1.rt21.169.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time EUS (v.9.0)
- kernel-rt-debuginfo-common-x86_64-0:5.14.0-70.97.1.rt21.169.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0)
- kernel-rt-devel-0:5.14.0-70.97.1.rt21.169.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time EUS (v.9.0)
- kernel-rt-devel-0:5.14.0-70.97.1.rt21.169.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0)
- kernel-rt-kvm-0:5.14.0-70.97.1.rt21.169.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0)
- kernel-rt-modules-0:5.14.0-70.97.1.rt21.169.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time EUS (v.9.0)
- kernel-rt-modules-0:5.14.0-70.97.1.rt21.169.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0)
- +2 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)
- selfhttps://access.redhat.com/errata/RHSA-2024:1840
- externalhttps://access.redhat.com/security/updates/classification/#moderate
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2252731
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2261976
- selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2024/rhsa-2024_1840.json