cross-posted from: https://lemmy.world/post/2852886
For those out of the loop, some AMD users have been suffering from stuttering issues caused by the AMD fTPM random number generator. A firmware/BIOS update appears to fix the issue for some users, but not others, leading to more bug reports being sent in. Last week, Linus Torvalds said “let’s just disable the stupid fTPM hwrnd thing”, and, as of today the Linux kernel has gone ahead and blanket disabled RNG use for all current AMD fTPMs.
Yeah. I think I disabled it the day I built my system.
This is the way. Besides these stuttering issues, the TPM is owner-disobedient (there is no way for the owner to extract keys stored in it) and an unnecessary attack surface (which, if breached, gives the attacker unfettered, persistent, and irrevocable access to the entire machine).