Linux 6.8 x86/urgent Update Beefs Up Protection Against Side Channel CPU Bugs

Sent in this morning via the "x86/urgent" pull request ahead of the Linux 6.8-rc6 kernel later today is a set of patches from Intel to ensure clearing of CPU buffers using the VERW instruction happens at the latest possible point in the return-to-userspace code path. This is being done to better protect against CPU bugs like Microarchitectural Data Sampling (MDS)...