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Description of problem:
When an audit rules such as this is loaded on a 32 bit system:

-a exit,always -S creat -S open -S openat -S truncate -S ftruncate -F success=0 -F auid!=-1

System processes (ones with auid == -1) still get logged. This is because the auid is converted using a signed conversion and then compared in the kernel unsigned. Since 2147483647 does not equal 4294967295, the rule never triggers. Listing the rule back out with "auditctl -l" shows that auid=2147483647 (0x7fffffff) is loaded rather than 4294967295.

In researching this problem, I found that it was already fixed by https://fedorahosted.org/audit/changeset/268

However during troubleshooting, I needed to get records for auid 4294967295 with ausearch. This resulted in all records rather than the one I wanted. My query was something like this:

ausearch -ul 4294967295 -if ./audit.log

Where audit.log had the following event

type=USER_AUTH msg=audit(1258740386.638:288): user pid=28360 uid=500 auid=500 ses=3 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='op=PAM:authentication acct="root" exe="/usr/libexec/polkit-1/polkit-agent-helper-1" hostname=? addr=? terminal=? res=failed'

Fixed by upstream commit:
https://fedorahosted.org/audit/changeset/439

audit-2.0.6-1.el6 was built to fix this problem.

An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHBA-2011-0653.html