Remote Scheduler Contention Attacks

arXiv:2404.07042v1 Announce Type: new
Abstract: In this paper, we investigate unexplored aspects of scheduler contention: We systematically study the leakage of all scheduler queues on AMD Zen 3 and show that all queues leak. We mount the first scheduler contention attacks on Zen 4, with a novel measurement method evoking an out-of-order race condition, more precise than the state of the art. We demonstrate the first inter-keystroke timing attacks based on scheduler contention, with an F1 score of $\geq$ 99.5 …

amd arxiv attacks cs.cr leak measurement novel order queues race race condition scheduler study