Linux May Gain Protection Against Hyper-Threading Attacks
Oracle security researchers have been working on security feature for Linux kernels that could protect Linux-based systems against attacks that affect Intel’s Hyper-Threading (HT) feature. Multiple side-channel threats the feature's vulnerable against, including L1TF/Foreshadow and the MDS attacks, have been revealed over the past few months.
The Oracle developers didn't specify whether or not the recent MDS attacks against Intel’s HT would also be mitigated through its Kernel Address Space Isolation (KASI), only that it will protect against L1TF/Foreshadow. Other side-channel attacks seem to be up for debate, as any extra isolation being introduced into the kernel could potentially impact the performance of Linux systems.
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