Kernel-memory-leaking Intel processor design flaw forces Linux, Windows redesign
and
Reading privileged memory with a side-channel
In recent news people could read about a kernel memory leaking CPU bug.
If using OpenBSD, how can we defend ourselves? Or OpenBSD isn't affected?
Best Answer
CPU microcode update code for amd64
https://undeadly.org/cgi?action=article;sid=20180115073406
https://marc.info/?l=openbsd-tech&m=151588857304763&w=2
So the current status: do a "fw_update" command as root and reboot.