Description of problem:
This happened after my laptop awoke from sleep; it was present after I logged in.
SELinux is preventing x86_energy_perf from 'read' accesses on the chr_file msr.

*****  Plugin device (91.4 confidence) suggests   ****************************

If you want to allow x86_energy_perf to have read access on the msr chr_file
Then you need to change the label on msr to a type of a similar device.
Do
# semanage fcontext -a -t SIMILAR_TYPE 'msr'
# restorecon -v 'msr'

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

If you believe that x86_energy_perf should be allowed read access on the msr chr_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 'x86_energy_perf' --raw | audit2allow -M my-x86energyperf
# semodule -X 300 -i my-x86energyperf.pp

Additional Information:
Source Context                system_u:system_r:tlp_t:s0
Target Context                system_u:object_r:device_t:s0
Target Objects                msr [ chr_file ]
Source                        x86_energy_perf
Source Path                   x86_energy_perf
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.14.1-24.fc28.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 4.16.7-300.fc28.x86_64 #1 SMP Wed
                              May 2 20:09:13 UTC 2018 x86_64 x86_64
Alert Count                   5
First Seen                    2018-04-05 19:46:33 PDT
Last Seen                     2018-05-17 06:26:17 PDT
Local ID                      70222713-ab99-4450-8110-6afb0d1947bf

Raw Audit Messages
type=AVC msg=audit(1526563577.94:1741): avc:  denied  { read } for  pid=31837 comm="x86_energy_perf" name="msr" dev="devtmpfs" ino=2619736 scontext=system_u:system_r:tlp_t:s0 tcontext=system_u:object_r:device_t:s0 tclass=chr_file permissive=0


Hash: x86_energy_perf,tlp_t,device_t,chr_file,read

Version-Release number of selected component:
selinux-policy-3.14.1-24.fc28.noarch

Additional info:
component:      selinux-policy
reporter:       libreport-2.9.5
hashmarkername: setroubleshoot
kernel:         4.16.7-300.fc28.x86_64
type:           libreport