The following was filed automatically by setroubleshoot:

Summary:

SELinux is preventing the update-mime-dat from using potentially mislabeled
files (futuresplash.xml.new).

Detailed Description:

[SELinux is in permissive mode, the operation would have been denied but was
permitted due to permissive mode.]

SELinux has denied update-mime-dat access to potentially mislabeled file(s)
(futuresplash.xml.new). This means that SELinux will not allow update-mime-dat
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 update-mime-dat to access this files, you need to relabel them using
restorecon -v 'futuresplash.xml.new'. You might want to relabel the entire
directory using restorecon -R -v 'futuresplash.xml.new'.

Additional Information:

Source Context                unconfined_u:unconfined_r:nsplugin_t:SystemLow-
                              SystemHigh
Target Context                system_u:object_r:gconf_home_t:SystemLow
Target Objects                futuresplash.xml.new [ dir ]
Source                        update-mime-dat
Source Path                   /usr/bin/update-mime-database
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           shared-mime-info-0.60-3.fc11
Target RPM Packages           
Policy RPM                    selinux-policy-3.6.19-4.fc12
Selinux Enabled               True
Policy Type                   targeted
MLS Enabled                   True
Enforcing Mode                Permissive
Plugin Name                   home_tmp_bad_labels
Host Name                     (removed)
Platform                      Linux (removed)
                              2.6.31-0.24.rc0.git18.fc12.i586 #1 SMP Mon Jun 22
                              16:26:17 EDT 2009 i686 i686
Alert Count                   3
First Seen                    Thu 25 Jun 2009 03:16:27 PM CDT
Last Seen                     Thu 25 Jun 2009 03:16:27 PM CDT
Local ID                      b23b349c-516e-4b30-8971-dfa4b4bb50ee
Line Numbers                  

Raw Audit Messages            

node=(removed) type=AVC msg=audit(1245960987.183:142): avc:  denied  { remove_name } for  pid=6364 comm="update-mime-dat" name="futuresplash.xml.new" dev=dm-0 ino=1359875 scontext=unconfined_u:unconfined_r:nsplugin_t:s0-s0:c0.c1023 tcontext=system_u:object_r:gconf_home_t:s0 tclass=dir

node=(removed) type=AVC msg=audit(1245960987.183:142): avc:  denied  { rename } for  pid=6364 comm="update-mime-dat" name="futuresplash.xml.new" dev=dm-0 ino=1359875 scontext=unconfined_u:unconfined_r:nsplugin_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:gconf_home_t:s0 tclass=file

node=(removed) type=AVC msg=audit(1245960987.183:142): avc:  denied  { unlink } for  pid=6364 comm="update-mime-dat" name="futuresplash.xml" dev=dm-0 ino=1360176 scontext=unconfined_u:unconfined_r:nsplugin_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:gconf_home_t:s0 tclass=file

node=(removed) type=SYSCALL msg=audit(1245960987.183:142): arch=40000003 syscall=38 success=yes exit=0 a0=8969600 a1=8968f10 a2=8969600 a3=8968f10 items=0 ppid=6341 pid=6364 auid=500 uid=500 gid=500 euid=500 suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 tty=(none) ses=1 comm="update-mime-dat" exe="/usr/bin/update-mime-database" subj=unconfined_u:unconfined_r:nsplugin_t:s0-s0:c0.c1023 key=(null)


audit2allow suggests:

#============= nsplugin_t ==============
allow nsplugin_t gconf_home_t:dir remove_name;
allow nsplugin_t gconf_home_t:file { rename unlink };