Description of problem:
SELinux is preventing gdk-pixbuf-thum from using the 'dac_read_search' capabilities.

*****  Plugin dac_override (91.4 confidence) suggests   **********************

If si vuole aiutare ad identificare se al dominio serva questo accesso o se si possiede un file con i permessi sbagliati sul sistema
Then attivare l'auditing completo per ottenere le informazioni del percorso del file incriminato e generare nuovamente l'errore.
Do

Attivare il controllo completo auditing
# auditctl -w /etc/shadow -p w
Provare a ricreare AVC. Eseguire quindi
# ausearch -m avc -ts recent
Qualora si noti il record PATH, controllare la proprietà/i permessi sul file e correggerli,
altrimenti registrare un bugzilla.

*****  Plugin catchall (9.59 confidence) suggests   **************************

If si pensa che gdk-pixbuf-thum dovrebbe avere funzionalità dac_read_search in modo predefinito.
Then si dovrebbe riportare il problema come bug.
E' possibile generare un modulo di politica locale per consentire questo accesso.
Do
allow this access for now by executing:
# ausearch -c 'gdk-pixbuf-thum' --raw | audit2allow -M my-gdkpixbufthum
# semodule -X 300 -i my-gdkpixbufthum.pp

Additional Information:
Source Context                unconfined_u:unconfined_r:thumb_t:s0-s0:c0.c1023
Target Context                unconfined_u:unconfined_r:thumb_t:s0-s0:c0.c1023
Target Objects                Unknown [ capability ]
Source                        gdk-pixbuf-thum
Source Path                   gdk-pixbuf-thum
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.13.1-225.11.fc25.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 4.10.8-200.fc25.x86_64 #1 SMP Fri
                              Mar 31 13:20:22 UTC 2017 x86_64 x86_64
Alert Count                   27
First Seen                    2017-04-11 01:00:55 CEST
Last Seen                     2017-04-11 01:00:57 CEST
Local ID                      d0c42285-c887-4a59-8e0d-996fab7c9945

Raw Audit Messages
type=AVC msg=audit(1491865257.150:334): avc:  denied  { dac_read_search } for  pid=5808 comm="totem-video-thu" capability=2  scontext=unconfined_u:unconfined_r:thumb_t:s0-s0:c0.c1023 tcontext=unconfined_u:unconfined_r:thumb_t:s0-s0:c0.c1023 tclass=capability permissive=0


Hash: gdk-pixbuf-thum,thumb_t,thumb_t,capability,dac_read_search

Version-Release number of selected component:
selinux-policy-3.13.1-225.11.fc25.noarch

Additional info:
reporter:       libreport-2.8.0
hashmarkername: setroubleshoot
kernel:         4.10.8-200.fc25.x86_64
type:           libreport

Potential duplicate: bug 1438942