CVE-2026-53287

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxe68b75a027bb94066576139ee33676264f867b87 < 75bd76c9eb2de9afeca03dc5152ebca5fb8fc816affected
LinuxLinuxe68b75a027bb94066576139ee33676264f867b87 < febb4bf373ac565d3fb8d1f429827bdd983be496affected
LinuxLinuxe68b75a027bb94066576139ee33676264f867b87 < 95de7bb4bf535a9288549d401ebde83cdcbf2792affected
LinuxLinuxe68b75a027bb94066576139ee33676264f867b87 < 151ee470edc3d7ed29fe72df678f8357d2ad8cedaffected
LinuxLinuxe68b75a027bb94066576139ee33676264f867b87 < 0a065c51a225854768b772a0b733a44d77162582affected
LinuxLinuxe68b75a027bb94066576139ee33676264f867b87 < e35f3550c5b4fab33103c18654c293cee9850b0aaffected
LinuxLinuxe68b75a027bb94066576139ee33676264f867b87 < d782e4d200cd9036ef353eeb29525bfbfd13a14eaffected
LinuxLinuxe68b75a027bb94066576139ee33676264f867b87 < e4a640475e43f406fdfd56d370b1f34b0cbbc18daffected
LinuxLinux2.6.29affected
LinuxLinux0 < 2.6.29unaffected
LinuxLinux5.10.258 <= 5.10.*unaffected
LinuxLinux5.15.209 <= 5.15.*unaffected
LinuxLinux6.1.175 <= 6.1.*unaffected
LinuxLinux6.6.141 <= 6.6.*unaffected
LinuxLinux6.12.91 <= 6.12.*unaffected
LinuxLinux6.18.33 <= 6.18.*unaffected
LinuxLinux7.0.10 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References