CVE-2026-53287

Description

In the Linux kernel, the following vulnerability has been resolved: audit: fix incorrect inheritable capability in CAPSET records __audit_log_capset() records the effective capability set into the inheritable field due to a copy-paste error. Every CAPSET audit record therefore reports cap_pi (process inheritable) with the value of cap_effective instead of cap_inheritable. This silently corrupts audit data used for compliance and forensic analysis: an attacker who modifies inheritable capabilities to prepare for a privilege-escalating exec would have the change masked in the audit trail. The bug has been present since the original introduction of CAPSET audit records in 2008.

References

• https://git.kernel.org/stable/c/0a065c51a225854768b772a0b733a44d77162582
• https://git.kernel.org/stable/c/151ee470edc3d7ed29fe72df678f8357d2ad8ced
• https://git.kernel.org/stable/c/75bd76c9eb2de9afeca03dc5152ebca5fb8fc816
• https://git.kernel.org/stable/c/95de7bb4bf535a9288549d401ebde83cdcbf2792
• https://git.kernel.org/stable/c/d782e4d200cd9036ef353eeb29525bfbfd13a14e