Crashes whole Xorg session when no polkit authenticator is found

Submitted by dbd..@..il.com

Description

Steps to reproduce:

Unload your polkit authenticator (This may be built into GNOME. I use XFCE and didn't have one loaded at the time of the crash.)
Try to change a process's priorty (or do something else that requires elevated privlages.)
Xorg becomes unresponsive. I could move my mouse but couldn't interact with any of my applications. I had to change TTYs and kill the Xorg process losing all of my work from applications running in Xorg.

I noticed a message printed to the TTY after I killed Xorg. Instead of doing anything reasonable (like printing an error message), it tried to get me to authenticate from the TTY that Xorg was running on which crashed my whole Xorg session with no way to recover (I obviously can't type on the TTY that Xorg is displaying on.) IMO this should never happen. Anything else would be preferable to this. Print an error message, do nothing, even simply crashing gnome-system-monitor would be better than crashing my whole X session.

Version: 3.12.x