Daniel Weber

icon indicating a website link https://d-we.me

icon company @cispa icon location PhD student - Into microarchitectural attacks, reverse engineering, memory corruptions, and CTFs

Results 3 comments of Daniel Weber

Hang + Crash on Kernel 6.11.3

Maybe that issue arises due to IBT being enabled in the kernel per default [since 6.2](https://www.phoronix.com/news/Linux-IBT-By-Default-Tip) Hence, a potential fix would be [PR#47](https://github.com/misc0110/PTEditor/pull/47)

Hang + Crash on Kernel 6.11.3

Also related: custom TLB invalidation was broken on kernel 6.6+ (see https://github.com/misc0110/PTEditor/pull/48)

Compatibility with SEV-enabled kernels

also, in theory that [bit position can change](https://documentation.suse.com/sles/15-SP5/html/SLES-all/article-amd-sev.html). It, however, [looks like it's always the uppermost bit of the PFN range](https://dse.in.tum.de/wp-content/uploads/2024/11/sigmetrics25summer-CVM-Explained.pdf). Hence, we should *probably* be fine for all machines...