Red Hat Bugzilla – Bug 463998
Zero timestamp in audit events from kernel threads
Last modified: 2009-12-18 01:26:18 EST
The kernel may produce audit records with zero timestamp:
> <SNIP> type=AVC msg=audit(0.000:6760): <SNIP> comm="lockd"
> <SNIP> type=AVC msg=audit(0.000:381): <SNIP> comm="nfsd4"
The records are created by kernel threads; when a kernel thread is
created, an audit context is created and zeroed. The timestamp is
set on system call entry in ordinary threads, but there is no system
call entry in kernel threads, so the original zero timestamp is used in
all audit records related to kernel threads.
This bug appears to have been reported against 'rawhide' during the Fedora 10 development cycle.
Changing version to '10'.
More information and reason for this action is here:
In kernel/audit.c:audit_get_stamp() try to replace if (ctx) with
if (ctx && ctx->in_syscall), see if that solves the problem.
ought to be fixed by mainline commit 48887e63d6e057543067327da6b091297f7fe645
Author: Al Viro <email@example.com>
Date: Sat Dec 6 01:05:50 2008 -0500
[PATCH] fix broken timestamps in AVC generated by kernel threads
Timestamp in audit_context is valid only if ->in_syscall is set.
Fixed in 2.6.28 but not in 2.6.27-stable. Will be fixed in the f10 2.6.29 update.
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