Today's hardware vulnerability: register file data sampling

The mainline kernel has just received a set of commits addressing the"register file data sampling" hardware vulnerability.

RFDS may allow a malicious actor to infer data values previouslyused in floating point registers, vector registers, or integerregisters. RFDS does not provide the ability to choose which datais inferred

Only Atom cores are affected, but those cores can be found inside a numberof processors. See this documentationcommit for more information.