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libreport version: 2.0.8 executable: /usr/bin/python hashmarkername: setroubleshoot kernel: 3.3.0-0.rc1.git0.4.fc17.x86_64 reason: SELinux is preventing /usr/bin/gnome-session from 'read' accesses on the None at-spi2. time: lun. 23 janv. 2012 19:19:50 CET description: :SELinux is preventing /usr/bin/gnome-session from 'read' accesses on the None at-spi2. : :***** Plugin catchall (100. confidence) suggests *************************** : :If you believe that gnome-session should be allowed read access on the at-spi2 <Inconnu> 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 [ None ] :Source gnome-session :Source Path /usr/bin/gnome-session :Port <Inconnu> :Host (removed) :Source RPM Packages gnome-session-3.3.3-2.fc17.x86_64 :Target RPM Packages :Policy RPM selinux-policy-3.10.0-77.fc17.noarch :Selinux Enabled True :Policy Type targeted :Enforcing Mode Enforcing :Host Name (removed) :Platform Linux (removed) 3.3.0-0.rc1.git0.4.fc17.x86_64 #1 : SMP Mon Jan 23 14:21:20 UTC 2012 x86_64 x86_64 :Alert Count 1 :First Seen lun. 23 janv. 2012 19:17:10 CET :Last Seen lun. 23 janv. 2012 19:17:10 CET :Local ID 3ec45805-904d-422f-9896-e24eea5495c5 : :Raw Audit Messages :type=AVC msg=audit(1327342630.91:48): avc: denied { read } for pid=1 comm="systemd" name="postfix" dev="dm-1" ino=92340 scontext=system_u:system_r:init_t:s0 tcontext=system_u:object_r:postfix_spool_t:s0 tclass=dirnode=(removed) type=AVC msg=audit(1327342661.699:70): avc: denied { setattr } for pid=1399 comm="gnome-session" name="at-spi2" dev="dm-1" ino=153787 scontext=system_u:system_r:xdm_t:s0-s0:c0.c1023 tcontext=system_u:object_r:tmp_t:s0 tclass=dirnode=(removed) type=SYSCALL msg=audit(1327342661.699:70): arch=c000003e syscall=90 success=no exit=-13 a0=7f56a4304841 a1=3ff a2=11 a3=7fff47132880 items=0 ppid=1328 pid=1399 auid=42 uid=42 gid=42 euid=42 suid=42 fsuid=42 egid=42 sgid=42 fsgid=42 tty=(none) ses=1 comm="gnome-session" exe="/usr/bin/gnome-session" subj=system_u:system_r:xdm_t:s0-s0:c0.c1023 key=(null) : : :Hash: gnome-session,xdm_t,tmp_t,None,read : :audit2allow : : :audit2allow -R : :
This looks like you have a badly mislabeled system, since you have postfix running as init_t?
The system was fully relabelled less than 24h before this alert
(In reply to comment #2) > The system was fully relabelled less than 24h before this alert and I've relabelled it once again Note: like last week-end, with the software versions in rawhide, the only way to get a relabel to succeed is to append enforcing=0 single to the boot line without enforcing=0 selinux blocks parts of the pp mangling (probably how I ended with empty pp files on system) without single the relabel stops after a few stars (probably systemd ordering broken)
And how does the system look now. You can relabel also by executing fixfiles restore reboot Should do the same thing.
I would say that a part of this bug relates with crashing gnome-shell.
*** This bug has been marked as a duplicate of bug 770466 ***