What does "auid=4294967295" mean in the RHEL audit log?

Solution Unverified - Updated -

Issue

  • What doesauid=4294967295 mean in the following log entry:

    type=CRED_ACQ msg=audit(1451628601.722:39635): user pid=24914 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:crond_t:s0-s0:c0.c1023 msg='op=PAM:setcred acct="root" exe="/usr/sbin/crond" hostname=? addr=? terminal=cron res=success'

  • The audit.log file has invalid user id for the keyword auid. Kindly advise why there was an invalid auid available for this event.

Environment

Red Hat Enterprise Linux (RHEL) 6 and 7

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