High [CVE-2026-23171] Linux kernel: Use-after-free in bonding module can cause system crash or arbitrary code execution
This high-severity Red Hat Linux advisory covers CVE-2026-23171 affecting Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 1, kernel-rt.
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Summary
Linux kernel: Use-after-free in bonding module can cause system crash or arbitrary code execution. Red Hat rates this moderate (CVSS 7).
Weakness: CWE-416. Affected package(s): kernel, kernel-rt.
Resolved in Red Hat advisory RHSA-2026:8342 — update the affected packages (`sudo dnf update`).
Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 1.
- kernel-0:5.14.0-570.108.1.el9_6
- kernel-0:6.12.0-55.68.1.el10_0
- kernel-0:5.14.0-611.45.1.el9_7
- kernel-0:5.14.0-427.121.1.el9_4
- kernel-0:5.14.0-284.166.1.el9_2
- kernel-rt-0:5.14.0-284.166.1.rt14.451.el9_2
- kernel-0:6.12.0-124.49.1.el10_1
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- RHSA-2026:8342
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-2026:8342 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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