6 ms·
The timeout idea is interesting. If firmware can strictly bound SMM execution time, would that actually eliminate this class of attack, or just turn it into a c
by engzaanin 1mo ago
The timeout idea is interesting. If firmware can strictly bound SMM execution time, would that actually eliminate this class of attack, or just turn it into a crash/DoS instead?
- inigyou 1mo agoSomeone would definitely notice if SMM took a long time. It would look like the core hung. The exploit is hanging another core outside SMM.