What could have caused this kernel panic?
I recently shut down a Fedora 27 XFCE live session (shortly after getting this question answered), and the system ended up suffering what looks like a kernel panic. I ended up having to hold down the laptop's power button to get it to shut off completely. I've ran this live session multiple times, but this is the first time a shutdown had this result.
Other images are located here on Postimage. These were taken from a short video recording because I didn't realize everything would stay on-screen until I held the power button.
As far as hardware information goes, the system is a Lenovo ThinkPad E535 using 8GB of ram and an AMD processor. From the info given, is there any clue as to what could have gone wrong?