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Created attachment 1823552 [details]
avc denials

Description of problem:
While starting the Xephyr window I get flooded with denials.

Version-Release number of selected component (if applicable):
Compose used RHEL-9.0.0-20210907.4
Scratch build from https://bugzilla.redhat.com/show_bug.cgi?id=1993855#c20

How reproducible:
100%

Steps to Reproduce:
1. $ Xephyr :99 -query localhost -fullscreen

(My only action is starting the Xephyr with the above command, I do not do anything else)

Actual results:
Journal flooded with denials.

Expected results:
No denials

Additional info:
This is only happening with Xephyr and with the new gdm version which fixes the previous issue with login, does NOT seem to be a blocker for now, I can still login and logout, but could be investigated.

i don't think this is related to the change really. The AVC says it's blocking at-spi from talking over a tcp socket.  With XDMCP, the X connection is a tcp socket.  Just seems like a bug in selinux policy we don't hit typically because X connections are usually over a local socket.

I've submitted a Fedora PR to address the issue:
https://github.com/fedora-selinux/selinux-policy/pull/896

Commit to backport:

Author: Zdenek Pytela <zpytela>
Date:   Thu Sep 23 16:00:21 2021 +0200

    Allow gnome at-spi processes create and use stream sockets

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (new packages: selinux-policy), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2022:3918