Summary:

SELinux is preventing /sbin/shutdown "ioctl" access to /var/log/kdm.log.

Detailed Description:

SELinux denied access requested by shutdown. /var/log/kdm.log may be a
mislabeled. /var/log/kdm.log default SELinux type is xserver_log_t, but its
current type is xdm_log_t. Changing this file back to the default type, may fix
your problem.

File contexts can be assigned to a file in the following ways.

  * Files created in a directory receive the file context of the parent
    directory by default.
  * The SELinux policy might override the default label inherited from the
    parent directory by specifying a process running in context A which creates
    a file in a directory labeled B will instead create the file with label C.
    An example of this would be the dhcp client running with the dhclient_t type
    and creating a file in the directory /etc. This file would normally receive
    the etc_t type due to parental inheritance but instead the file is labeled
    with the net_conf_t type because the SELinux policy specifies this.
  * Users can change the file context on a file using tools such as chcon, or
    restorecon.

This file could have been mislabeled either by user error, or if an normally
confined application was run under the wrong domain.

However, this might also indicate a bug in SELinux because the file should not
have been labeled with this type.

If you believe this is a bug, please file a bug report against this package.

Allowing Access:

You can restore the default system context to this file by executing the
restorecon command. restorecon '/var/log/kdm.log', if this file is a directory,
you can recursively restore using restorecon -R '/var/log/kdm.log'.

Fix Command:

/sbin/restorecon '/var/log/kdm.log'

Additional Information:

Source Context                system_u:system_r:shutdown_t:s0-s0:c0.c1023
Target Context                system_u:object_r:xdm_log_t:s0
Target Objects                /var/log/kdm.log [ file ]
Source                        shutdown
Source Path                   /sbin/shutdown
Port                          <Unknown>
Host                          localhost.localdomain
Source RPM Packages           upstart-0.6.5-5.fc13
Target RPM Packages           
Policy RPM                    selinux-policy-3.7.19-10.fc13
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Plugin Name                   restorecon
Host Name                     localhost.localdomain
Platform                      Linux localhost.localdomain 2.6.34.7-56.fc13.i686
                              #1 SMP Wed Sep 15 03:33:58 UTC 2010 i686 i686
Alert Count                   1
First Seen                    Fri 24 Sep 2010 01:41:26 AM NOVST
Last Seen                     Fri 24 Sep 2010 01:41:26 AM NOVST
Local ID                      59faf4a2-1713-4d55-a05a-c9e83e5453d8
Line Numbers                 

Raw Audit Messages           

node=localhost.localdomain type=AVC msg=audit(1285267286.320:24477): avc:  denied  { ioctl } for  pid=4795 comm="shutdown" path="/var/log/kdm.log" dev=dm-0 ino=42483 scontext=system_u:system_r:shutdown_t:s0-s0:c0.c1023 tcontext=system_u:object_r:xdm_log_t:s0 tclass=file

node=localhost.localdomain type=SYSCALL msg=audit(1285267286.320:24477): arch=40000003 syscall=54 success=no exit=-25 a0=1 a1=5401 a2=bf96d488 a3=bf96d59c items=0 ppid=1456 pid=4795 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="shutdown" exe="/sbin/shutdown" subj=system_u:system_r:shutdown_t:s0-s0:c0.c1023 key=(null)