Description of problem:
SELinux is preventing gnome-shell from 'execute' accesses on the file 2F72756E2F676E6F6D652D696E697469616C2D73657475702F233232343434202864656C6574656429.

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

If you believe that gnome-shell should be allowed execute access on the 2F72756E2F676E6F6D652D696E697469616C2D73657475702F233232343434202864656C6574656429 file 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:
# ausearch -c 'gnome-shell' --raw | audit2allow -M my-gnomeshell
# semodule -X 300 -i my-gnomeshell.pp

Additional Information:
Source Context                system_u:system_r:xdm_t:s0-s0:c0.c1023
Target Context                system_u:object_r:xdm_var_run_t:s0
Target Objects                2F72756E2F676E6F6D652D696E697469616C2D73657475702F
                              233232343434202864656C6574656429 [ file ]
Source                        gnome-shell
Source Path                   gnome-shell
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.13.1-283.14.fc27.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 4.13.9-300.fc27.x86_64 #1 SMP Mon
                              Oct 23 13:41:58 UTC 2017 x86_64 x86_64
Alert Count                   1
First Seen                    2017-11-15 12:27:18 IST
Last Seen                     2017-11-15 12:27:18 IST
Local ID                      a5a3456a-ff36-479b-be64-94f01c6c504a

Raw Audit Messages
type=AVC msg=audit(1510741638.621:184): avc:  denied  { execute } for  pid=1236 comm="gnome-shell" path=2F72756E2F676E6F6D652D696E697469616C2D73657475702F233232343434202864656C6574656429 dev="tmpfs" ino=22444 scontext=system_u:system_r:xdm_t:s0-s0:c0.c1023 tcontext=system_u:object_r:xdm_var_run_t:s0 tclass=file permissive=0


Hash: gnome-shell,xdm_t,xdm_var_run_t,file,execute

Version-Release number of selected component:
selinux-policy-3.13.1-283.14.fc27.noarch

Additional info:
component:      selinux-policy
reporter:       libreport-2.9.3
hashmarkername: setroubleshoot
kernel:         4.13.12-300.fc27.x86_64
type:           libreport

Potential duplicate: bug 1510909