FreeBSD -- Lazy FPU State Restore Information Disclosure

Problem Description:
A subset of Intel processors can allow a local thread
to infer data from another thread through a speculative
execution side channel when Lazy FPU state restore is
used.
Impact:
Any local thread can potentially read FPU state information
from other threads running on the host. This could include
cryptographic keys when the AES-NI CPU feature is present.