CVE-2026-53367: selinux: fix avdcache auditing
In the Linux kernel, the following vulnerability has been resolved:
selinux: fix avdcache auditing
The per-task avdcache was incorrectly saving and reusing the audited vector computed by avcauditrequired() rather than recomputing based on the currently requested permissions and distinguishing the denied versus allowed cases. As a result, some permission checks were not being audited, e.g. directory write checks after a previously cached directory search check.
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Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2026-53367?
CVE-2026-53367 has a risk rating of 15, indicating a high severity level.
How do I fix CVE-2026-53367?
To fix CVE-2026-53367, update your Linux kernel to the latest patched version.
What systems are affected by CVE-2026-53367?
CVE-2026-53367 affects the Linux kernel, especially installations utilizing SELinux.
What are the consequences of CVE-2026-53367?
CVE-2026-53367 can lead to improper auditing of SELinux permissions, potentially allowing unauthorized access.
Is there a workaround for CVE-2026-53367?
Currently, the recommended action for CVE-2026-53367 is to apply the kernel patch as there are no effective workarounds mentioned.