Intel FPU Speculation Vulnerability Confirmed
Earlier this month, Philip Guenther (guenther@) committed (to amd64 -current) a change from lazy to semi-eager FPU switching to mitigate against rumored FPU state leakage in Intel® CPUs.
Theo de Raadt (deraadt@) discussed this in his BSDCan 2018 session.
Using information disclosed in Theo's talk, Colin Percival developed a proof-of-concept exploit in around 5 hours. This seems to have … http://www.undeadly.org/cgi?action=article;sid=20180614064341 #openbsd