Researchers warn that a bug in AMD’s chips would allow attackers to root into some of the most privileged portions of a computer—and that it has persisted in the company’s processors for decades.
It means it’s what we in the trade call “a nothingburger”. On Windows you need to explicitly install a malicious driver (which in turn requires to you to disable signature verification), on Linux you’d have to load a malicious kernel module (which requires pasting commands as root, and it would probably be proprietary since it has malware to hide and as every nvidia user knows, proprietary kernel modules break with kernel updates)
It means it’s what we in the trade call “a nothingburger”. On Windows you need to explicitly install a malicious driver (which in turn requires to you to disable signature verification), on Linux you’d have to load a malicious kernel module (which requires pasting commands as root, and it would probably be proprietary since it has malware to hide and as every nvidia user knows, proprietary kernel modules break with kernel updates)
So install a multiplayer game, it has kernel level anticheat that opens a bunch of security holes, game over.
Kernel level access is absolutely achievable in the real world.