Bug 533096

Summary:

SELinux is preventing the /usr/bin/xauth from using potentially mislabeled files
(xauth.XXXXWeMjga).

Detailed Description:

SELinux has denied xauth access to potentially mislabeled file(s)
(xauth.XXXXWeMjga). This means that SELinux will not allow xauth to use these
files. It is common for users to edit files in their home directory or tmp
directories and then move (mv) them to system directories. The problem is that
the files end up with the wrong file context which confined applications are not
allowed to access.

Allowing Access:

If you want xauth to access this files, you need to relabel them using
restorecon -v 'xauth.XXXXWeMjga'. You might want to relabel the entire directory
using restorecon -R -v ''.

Additional Information:

Source Context                unconfined_u:unconfined_r:xauth_t:s0-s0:c0.c1023
Target Context                unconfined_u:object_r:user_tmp_t:s0
Target Objects                xauth.XXXXWeMjga [ file ]
Source                        xauth
Source Path                   /usr/bin/xauth
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           xorg-x11-xauth-1.0.2-7.fc12
Target RPM Packages           
Policy RPM                    selinux-policy-3.6.32-37.fc12
Selinux Enabled               True
Policy Type                   targeted
MLS Enabled                   True
Enforcing Mode                Enforcing
Plugin Name                   home_tmp_bad_labels
Host Name                     (removed)
Platform                      Linux (removed) 2.6.31.1-56.fc12.i686 #1 SMP
                              Tue Sep 29 16:32:02 EDT 2009 i686 i686
Alert Count                   1
First Seen                    Thu 05 Nov 2009 00:36:53 GMT
Last Seen                     Thu 05 Nov 2009 00:36:53 GMT
Local ID                      8efc1360-95b5-4a59-9f4d-a9b33a55f2ea
Line Numbers                  

Raw Audit Messages            

node=(removed) type=AVC msg=audit(1257381413.236:64): avc:  denied  { unlink } for  pid=5610 comm="xauth" name="xauth.XXXXWeMjga" dev=sda2 ino=95911 scontext=unconfined_u:unconfined_r:xauth_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_tmp_t:s0 tclass=file

node=(removed) type=SYSCALL msg=audit(1257381413.236:64): arch=40000003 syscall=10 success=no exit=-13 a0=829c008 a1=1 a2=0 a3=829c102 items=0 ppid=5609 pid=5610 auid=500 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts3 ses=1 comm="xauth" exe="/usr/bin/xauth" subj=unconfined_u:unconfined_r:xauth_t:s0-s0:c0.c1023 key=(null)


To reproduce :
kde : systemsettings - time and date - select the Area London - tick set date and time automatically - click apply.
Can't use ntp properly in kde because of this bug.
Hash String generated from  selinux-policy-3.6.32-37.fc12,home_tmp_bad_labels,xauth,xauth_t,user_tmp_t,file,unlink
audit2allow suggests:

#============= xauth_t ==============
allow xauth_t user_tmp_t:file unlink;