Description of problem:
SELinux is preventing plymouthd from 'map' accesses on the chr_file /dev/fb0.

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

If si crede che plymouthd dovrebbe avere possibilità di accesso map sui fb0 chr_file 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 'plymouthd' --raw | audit2allow -M my-plymouthd
# semodule -X 300 -i my-plymouthd.pp

Additional Information:
Source Context                system_u:system_r:plymouthd_t:s0
Target Context                system_u:object_r:framebuf_device_t:s0
Target Objects                /dev/fb0 [ chr_file ]
Source                        plymouthd
Source Path                   plymouthd
Port                          <Sconosciuto>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.13.1-270.fc27.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 4.13.0-0.rc4.git4.1.fc27.x86_64 #1
                              SMP Fri Aug 11 15:03:46 UTC 2017 x86_64 x86_64
Alert Count                   88
First Seen                    2017-08-13 13:21:30 CEST
Last Seen                     2017-08-15 22:33:15 CEST
Local ID                      92622f60-4b4b-4eee-b230-0bebb9add3de

Raw Audit Messages
type=AVC msg=audit(1502829195.581:2075): avc:  denied  { map } for  pid=5126 comm="plymouthd" path="/dev/fb0" dev="devtmpfs" ino=11430 scontext=system_u:system_r:plymouthd_t:s0 tcontext=system_u:object_r:framebuf_device_t:s0 tclass=chr_file permissive=0


Hash: plymouthd,plymouthd_t,framebuf_device_t,chr_file,map

Version-Release number of selected component:
selinux-policy-3.13.1-270.fc27.noarch

Additional info:
component:      selinux-policy
reporter:       libreport-2.9.1
hashmarkername: setroubleshoot
kernel:         4.13.0-0.rc4.git4.1.fc27.x86_64
type:           libreport