I don’t know what exactly is causing the bug. But if you have suspicion that this is an AMD issue, you can report it on their forum.
It is reasonably active, but I’m not very sure about how much Linux friendly they are. (From what I know, the official AMD Bug Report Tool is available only on Windows)
If you suspect Blender to be at fault, head this site
And click the Report a Bug option on top.
You might want to refer this
https://wiki.blender.org/wiki/Process/Bug_Reports