Bug 1309543 - SELinux is preventing pulseaudio from using the 'signull' accesses on a process.
SELinux is preventing pulseaudio from using the 'signull' accesses on a process.
Product: Fedora
Classification: Fedora
Component: selinux-policy (Show other bugs)
i686 Unspecified
medium Severity low
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Assigned To: Lukas Vrabec
Fedora Extras Quality Assurance
Depends On:
  Show dependency treegraph
Reported: 2016-02-18 00:06 EST by Youichi Kawachi
Modified: 2016-12-20 13:48 EST (History)
6 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2016-12-20 13:48:11 EST
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Regression: ---
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RHEL 7.3 requirements from Atomic Host:
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Description Youichi Kawachi 2016-02-18 00:06:09 EST
Description of problem:
SELinux is preventing pulseaudio from using the 'signull' accesses on a process.

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

If pulseaudio に、 unconfined_t にラベルされている signull アクセスがデフォルトで許可されるべきです。   
Then バグとして報告してください。 
# grep pulseaudio /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:pulseaudio_t:s0
Target Context                unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1
Target Objects                Unknown [ process ]
Source                        pulseaudio
Source Path                   pulseaudio
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.13.1-158.6.fc23.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 4.3.5-300.fc23.i686 #1 SMP Mon Feb
                              1 03:53:33 UTC 2016 i686 i686
Alert Count                   120
First Seen                    2016-02-18 13:50:03 JST
Last Seen                     2016-02-18 13:50:38 JST
Local ID                      49644479-826e-4533-8679-e5e59bb46866

Raw Audit Messages
type=AVC msg=audit(1455771038.376:416): avc:  denied  { signull } for  pid=2746 comm="pulseaudio" scontext=system_u:system_r:pulseaudio_t:s0 tcontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tclass=process permissive=0

Hash: pulseaudio,pulseaudio_t,unconfined_t,process,signull

Version-Release number of selected component:

Additional info:
reporter:       libreport-2.6.4
hashmarkername: setroubleshoot
kernel:         4.3.5-300.fc23.i686
type:           libreport
Comment 1 Lukas Vrabec 2016-02-18 13:29:16 EST
Are you able to reproduce this issue? Could you attach reproducer? And output of:
# ps -efZ | grep unconfined_t 

Thank you.
Comment 2 Youichi Kawachi 2016-02-18 20:31:32 EST
(In reply to Lukas Vrabec from comment #1)
> Are you able to reproduce this issue? Could you attach reproducer? And
> output of:
> # ps -efZ | grep unconfined_t 
> Thank you.


# Ps -efZ | grep unconfined_t

This is the line of "PulseAudio" from the list to be output.
I do not have a good understanding. 

unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 youichi 1490 1342  0 09:41 ? 00:00:01 /usr/lib/xfce4/panel/wrapper-2.0 /usr/lib/xfce4/panel/plugins/libpulseaudio-plugin.so 19 18874403 pulseaudio PulseAudio Plugin Adjust the audio volume of the PulseAudio sound system
unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 youichi 3117 1  0 09:44 ? 00:00:00 /usr/bin/pulseaudio --start --log-target=syslog
Comment 3 Fedora End Of Life 2016-11-24 10:37:22 EST
This message is a reminder that Fedora 23 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
and issuing updates for Fedora 23. It is Fedora's policy to close all
bug reports from releases that are no longer maintained. At that time
this bug will be closed as EOL if it remains open with a Fedora  'version'
of '23'.

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Although we aim to fix as many bugs as possible during every release's 
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Comment 4 Fedora End Of Life 2016-12-20 13:48:11 EST
Fedora 23 changed to end-of-life (EOL) status on 2016-12-20. Fedora 23 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of
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