stil not halloween
Looks like it always is!
Fear not! It’s coming
Install turkeys in your pc. Watch the virus run away. Gobble gobble
Over at Intel/AMD:
Maybe we should drop back to the Motorola 680x0 family again - and modernise from there instead of this crazy Intel architecture! Even AMD has problems with it - and there are so many ‘features’ and workarounds built in now that it isn’t a surprise that vulnerabilities sneak in…
It seems that disabling SMT helps…
Abstract—Modern Intel, AMD, and ARM processors translate complex instructions into simpler internal micro-ops that are then cached in a dedicated on-chip structure called the microop cache. This work presents an in-depth characterization study of the micro-op cache, reverse-engineering many undocumented features, and further describes attacks that exploit the microop cache as a timing channel to transmit secret information. In particular, this paper describes three attacks – (1) a same thread cross-domain attack that leaks secrets across the userkernel boundary, (2) a cross-SMT thread attack that transmits secrets across two SMT threads via the micro-op cache, and (3) transient execution attacks that have the ability to leak an unauthorized secret accessed along a misspeculated path, even before the transient instruction is dispatched to execution, breaking several existing invisible speculation and fencing-based solutions that mitigate Spectre.
I hope they are collecting some new AMD Cpu for me?
This only effects cpus that you have physical access to?