I cloned the RHEL4 bug report as it seems that this one somehow stayed unfixed 
in Fedora and RHEL5. There was an errata for RHEL4 with this.

+++ This bug was initially created as a clone of Bug #161230 +++

Description of problem:
Testing has shown that there is a spurious audit message being generated by gdm:

type=USER_ERR msg=audit(06/21/05 09:44:32.699:783952) : user pid=2155 uid=root 
auid=unknown(4294967295) msg='PAM bad_ident: user=? exe="/usr/bin/gdm-binary"
(hostname=?, addr=?, terminal=? result=User not known to the underlying
authentication module)'

This causes the audit system to log what could be interpretted as "suspicious"
events.


Version-Release number of selected component (if applicable):


How reproducible:
Always

Steps to Reproduce:
1. install audit package
2. reboot into run level 5
3. ausearch -i -x gdm
  

Actual Results:  Among other things you will find a USER_ERR message with no
PAM_USER.

Additional info:

-- Additional comment from tmraz on 2005-06-21 12:53 EST --
Created an attachment (id=115763)
Proposed patch

This patch simply disables the checking call to pam which is not necessary when
gdm is part of the distribution and not manually installed from sources by
user.