Medium [CVE-2026-43279] Add sanity check for OOB writes at silencing
This medium-severity Red Hat Linux advisory covers CVE-2026-43279 affecting Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 1, Red Hat Enterprise Linux 8.
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Summary
Add sanity check for OOB writes at silencing. Red Hat rates this moderate (CVSS 5.8).
Weakness: CWE-787. Affected package(s): kernel, kernel-rt.
Resolved in Red Hat advisory RHSA-2026:27354 — update the affected packages (`sudo dnf update`).
Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 8.
- kernel-0:5.14.0-687.17.1.el9_8
- kernel-rt-0:5.14.0-284.178.1.rt14.463.el9_2
- kernel-0:6.12.0-211.29.1.el10_2
- kernel-0:4.18.0-477.150.1.el8_8
- kernel-rt-0:4.18.0-553.136.1.rt7.477.el8_10
- kernel-0:5.14.0-284.178.1.el9_2
- kernel-0:4.18.0-553.136.1.el8_10
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- RHSA-2026:27354
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation checklist
- Update the affected package(s) to the fixed version shipped in RHSA-2026:27354 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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