Re: puzzling SELinux alert.

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On 14/04/2021 11:41, home user wrote:
Tomorrow morning, I will try the no-xeyes test that you suggest.

Ignoring the problem is tempting, but I don't want to give up toooooo easily.

Well, pardon me for saying I find that last observation somewhat narrow in scope.  :-) :-)

That being said....

Your AVC you posted was....

type=AVC msg=audit(1618332726.288:964): avc:  denied  { write } for  pid=129605 co
mm="gstglcontext" path=2F6D656D66643A2F2E6E76696469615F6472762E5858585858582028646
56C6574656429 dev="tmpfs" ino=1025 scontext=unconfined_u:unconfined_r:thumb_t:s0-s
0:c0.c1023 tcontext=system_u:object_r:xserver_tmpfs_t:s0 tclass=file permissive=0

Are all of your alerts of this kind?  You may want to use "ausearch" with -c gstglcontext.
You can narrow the window by using -ts in the ausearch command. Looking a the man page
to find the options for that parameter.

That being said, gstglcontext is related to OpenGL which "is a cross-language, cross-platform application programming interface (API) for rendering 2D and 3D vector graphics".  The "scontext" has as part of it xserver_tmpfs_t which furthers this.

So, the next time you get this alert check out the AVC and find the process associated with pid=.

--
Remind me to ignore comments which aren't germane to the thread.

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