speed47 / spectre-meltdown-checker

Reptar, Downfall, Zenbleed, ZombieLoad, RIDL, Fallout, Foreshadow, Spectre, Meltdown vulnerability/mitigation checker for Linux & BSD
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AMD PREFETCH Vulnerability May Require Meltdown Mitigations #412

Open owlshrimp opened 2 years ago

owlshrimp commented 2 years ago

https://www.phoronix.com/scan.php?page=article&item=if-amd-kpti&num=1

There's a new whitepaper out this week showing a vulnerability in the power consumption and timing if PREFETCH instructions. AMD don't yet feel the need to do so, but the authors recommend the use of stronger address space isolation on AMD processors.

This may become a vulnerability which requires active mitigation, and thus detection of the mitigation.