I installed the latest batch of updates for F28 tonight. Since that included a new kernel (4.16.10-300.fc28), I rebooted. The system came up with the GDM panic screen [1]. I rebooted into the previous kernel thinking that something might be wrong with the new one. Same result. I rebooted again and added enforcing=0 to the kernel boot line. That worked. I did a full SELinux relabel immediately afterwards. Nothing relevant changed labels.
The SELinux Alert Browser says there are no alerts. Journalctl shows this:
systemd[1071]: selinux: avc: denied { status } for auid=n/a uid=42 gid=42 cmdline="/usr/libexec/gdm-x-session gnome-session --autostart /usr/share/gdm/greeter/autostart" scontext=system_u:system_r:xdm_t:s0-s0:c0.c1023 tcontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tclass=system permissive=0
followed a short time later by this:
audit[1405]: AVC avc: denied { map } for pid=1405 comm="gnome-session-c" path="/dev/nvidiactl" dev="devtmpfs" ino=20616 scontext=system_u:system_r:xdm_t:s0-s0:c0.c1023 tcontext=system_u:object_r:xserver_misc_device_t:s0 tclass=chr_file permissive=0
And there are several more minor variations on that last one in the logs. Just thought everybody should know ASAP.
Footnotes:
[1] Which is totally useless, by the way. It says "Oh no! Something went wrong!" (Great. *WHAT* went wrong?) and informs me that I must logout. I wasn't logged in. There's a nice logout button there, but it can't be pressed. There is no mouse pointer. No keyboard shortcut that I can think of causes the button to change appearance. Even if I did manage to press it, what exactly would that do? I'm already not logged in!
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