Description of problem:
SELinux is preventing /usr/bin/gnome-session from 'setattr' accesses on the directory at-spi2.

*****  Plugin catchall (100. confidence) suggests  ***************************

If you believe that gnome-session should be allowed setattr access on the at-spi2 directory by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
Do
allow this access for now by executing:
# grep gnome-session /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:xdm_t:s0-s0:c0.c1023
Target Context                system_u:object_r:tmp_t:s0
Target Objects                at-spi2 [ dir ]
Source                        gnome-session
Source Path                   /usr/bin/gnome-session
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           gnome-shell-3.4.1-6.fc17.x86_64
Target RPM Packages           
Policy RPM                    selinux-policy-3.10.0-170.fc17.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 3.9.8-100.fc17.x86_64 #1 SMP Thu
                              Jun 27 19:19:57 UTC 2013 x86_64 x86_64
Alert Count                   3
First Seen                    2013-07-08 14:15:50 CDT
Last Seen                     2013-07-08 14:15:52 CDT
Local ID                      d0441720-0d68-4575-8d6c-46280766d82b

Raw Audit Messages
type=AVC msg=audit(1373310952.271:44): avc:  denied  { setattr } for  pid=1023 comm="gnome-shell" name="at-spi2" dev="dm-1" ino=1051792 scontext=system_u:system_r:xdm_t:s0-s0:c0.c1023 tcontext=system_u:object_r:tmp_t:s0 tclass=dir


type=SYSCALL msg=audit(1373310952.271:44): arch=x86_64 syscall=chmod success=no exit=EACCES a0=7ff1653fa761 a1=3ff a2=11 a3=7fffd484fe70 items=0 ppid=942 pid=1023 auid=42 uid=42 gid=42 euid=42 suid=42 fsuid=42 egid=42 sgid=42 fsgid=42 ses=1 tty=(none) comm=gnome-shell exe=/usr/bin/gnome-shell subj=system_u:system_r:xdm_t:s0-s0:c0.c1023 key=(null)

Hash: gnome-session,xdm_t,tmp_t,dir,setattr

audit2allow

#============= xdm_t ==============
#!!!! This avc can be allowed using the boolean 'allow_polyinstantiation'

allow xdm_t tmp_t:dir setattr;

audit2allow -R

#============= xdm_t ==============
#!!!! This avc can be allowed using the boolean 'allow_polyinstantiation'

allow xdm_t tmp_t:dir setattr;


Additional info:
hashmarkername: setroubleshoot
kernel:         3.9.8-100.fc17.x86_64
type:           libreport

Potential duplicate: bug 690326