Re: Fedora 34: Sound stopped working out of the blue

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On 04/10/2021 09:43, Adi Pircalabu wrote:
Didn't have setroubleshoot-server, so I went and installed it. "sealert -b"
does nothing, or I don't know how to use it yet. Then I went and analyzed the audit
log with "sealert -a /var/log/audit/audit.log" and here's the important
bit:

type=AVC msg=audit(1633309984.892:327): avc:  denied  { audit_control } for  pid=2387
comm="(systemd)" capability=30  scontext=system_u:system_r:init_t:s0
tcontext=system_u:system_r:init_t:s0 tclass=capability permissive=1

$ ps auxww | egrep 2387
adi         2387  0.0  0.0  24080 16084 ?        Ss   12:13   0:00
/usr/lib/systemd/systemd --user

So, looks like selinux prevents systemd to run as user adi. Now I need to figure out why
all of a sudden.
Manged to get my sound back in enforcing mode by running:
setsebool -P init_audit_control 1
After reboot I now have:
# audit2allow -w -a | tail

		Possible mismatch between current in-memory boolean settings vs. permanent ones.

type=AVC msg=audit(1633309984.892:327): avc:  denied  { audit_control } for  pid=2387 comm="(systemd)" capability=30  scontext=system_u:system_r:init_t:s0 tcontext=system_u:system_r:init_t:s0 tclass=capability permissive=1
	Was caused by:
		Unknown - would be allowed by active policy
		Possible mismatch between this policy and the one under which the audit message was generated.

		Possible mismatch between current in-memory boolean settings vs. permanent ones.

$ ps auxww | egrep pipewire
adi         2655  0.2  0.0 349932 17768 ?        S<sl 12:36   0:00 /usr/bin/pipewire
adi         2656  0.3  0.0 273220 25120 ?        S<Lsl 12:36   0:01 /usr/bin/pipewire-pulse
adi         2670  0.0  0.0 252976 12312 ?        S<l  12:36   0:00 /usr/bin/pipewire-media-session
adi         6401  0.0  0.0 221528   792 pts/1    S+   12:42   0:00 grep -E --color=auto pipewire

Still don't know what caused the change in behaviour yet.

On my F34 Gnome VM, I have sound after a full update.

[root@f34g ~]# getsebool init_audit_control
init_audit_control --> off

So, I don't know why you'd have to set it to "on".

I'm starting to think you may need to relabel your filesystem.

--
Nothing to see here
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