Turn off hyperthreading on Intel, if you want security

Linux kernel dev Greg Kroah-Hartman reckons Intel Simultaneous Multithreading (SMT) – also known as hyper-threading – should be disabled for security due to MDS (Microarchitectural Data Sampling) bugs.

Kroah-Hartman, who was speaking at the Open Source summit in Lyons, has opened up on the subject before. “I gave a talk last year about Spectre and how Linux reacted to it,” he told The Reg. “And then this year it’s about things found since the last talk. It’s more and more of the same types of problems.

“These problems are going to be with us for a long time; they’re not going away.”

Read further on The Register

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