AUDIT_SET_LOGINUID_IMMUTABLE(3) Linux Audit API NAME audit_set_loginuid_immutable - make loginuid value immutable SYNOPSIS #include int audit_set_loginuid_immutable(int fd);" DESCRIPTION audit_set_loginuid_immutable() locks the loginuid so that it can no longer be changed. The descriptor fd must be an open audit netlink socket. This call is equivalent to using audit_set_feature() to enable and lock the AUDIT_FEATURE_LOGINUID_IMMUTABLE bit. RETURN VALUE The return value is <= 0 on error, otherwise it is the netlink sequence id number. SEE ALSO audit_set_feature(3), audit_open(3). AUTHOR Steve Grubb Red Hat July 2025 AUDIT_SET_LOGINUID_IMMUTABLE(3)