Bug 1462555 - SELinux is preventing x86_energy_perf from 'open' accesses on the chr_file /dev/cpu/1/msr.
SELinux is preventing x86_energy_perf from 'open' accesses on the chr_file /d...
Status: NEW
Product: Fedora
Classification: Fedora
Component: selinux-policy (Show other bugs)
x86_64 Unspecified
unspecified Severity unspecified
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Assigned To: Lukas Vrabec
Fedora Extras Quality Assurance
Depends On:
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Reported: 2017-06-18 16:40 EDT by Riccardo Melioli
Modified: 2017-08-17 01:39 EDT (History)
8 users (show)

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Description Riccardo Melioli 2017-06-18 16:40:40 EDT
Description of problem:
SELinux is preventing x86_energy_perf from 'open' accesses on the chr_file /dev/cpu/1/msr.

*****  Plugin restorecon (90.5 confidence) suggests   ************************

If you want to fix the label. 
/dev/cpu/1/msr default label should be cpu_device_t.
Then you can run restorecon.
# /sbin/restorecon -v /dev/cpu/1/msr

*****  Plugin device (9.50 confidence) suggests   ****************************

If you want to allow x86_energy_perf to have open access on the msr chr_file
Then you need to change the label on /dev/cpu/1/msr to a type of a similar device.
# semanage fcontext -a -t SIMILAR_TYPE '/dev/cpu/1/msr'
# restorecon -v '/dev/cpu/1/msr'

*****  Plugin catchall (1.40 confidence) suggests   **************************

If you believe that x86_energy_perf should be allowed open 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.
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                /dev/cpu/1/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-3.13.1-225.18.fc25.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 4.11.5-200.fc25.x86_64 #1 SMP Wed
                              Jun 14 17:17:29 UTC 2017 x86_64 x86_64
Alert Count                   1
First Seen                    2017-06-18 20:43:53 CEST
Last Seen                     2017-06-18 20:43:53 CEST
Local ID                      0f859838-d04f-4483-a5bf-fed7ed4a5333

Raw Audit Messages
type=AVC msg=audit(1497811433.464:563): avc:  denied  { open } for  pid=21841 comm="x86_energy_perf" path="/dev/cpu/1/msr" dev="devtmpfs" ino=424578 scontext=system_u:system_r:tlp_t:s0 tcontext=system_u:object_r:device_t:s0 tclass=chr_file permissive=1

Hash: x86_energy_perf,tlp_t,device_t,chr_file,open

Version-Release number of selected component:

Additional info:
reporter:       libreport-2.8.0
hashmarkername: setroubleshoot
kernel:         4.11.5-200.fc25.x86_64
type:           libreport

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