CVE-2026-53367

Summary

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 avc_audit_required() 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.

[PM: line wrap tweaks]

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxdde3a5d0f4dce1d1a6095e6b8eeb59b75d28fb3b < e3e722ea88e051ae5361dc540c01ba18f87b5ffdaffected
LinuxLinuxdde3a5d0f4dce1d1a6095e6b8eeb59b75d28fb3b < bce6a32bc888dfebb6a7d4dee454228b71ed8369affected
LinuxLinuxdde3a5d0f4dce1d1a6095e6b8eeb59b75d28fb3b < f92d542577db878acfd21cc18dab23d03023b217affected
LinuxLinux21879b76831fab52f6a615c531f86412c8d3c827affected
LinuxLinux6.17.10 < 6.18affected
LinuxLinux6.18affected
LinuxLinux0 < 6.18unaffected
LinuxLinux6.18.30 <= 6.18.*unaffected
LinuxLinux7.0.7 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References