https://www.pcgamer.com/intel-discloses-lazy-fpu-vulnerability-that-is-similar-to-meltdown-but-less-serious/

A newly discovered chip vulnerability leaves owners of most Core processors susceptible to yet another side channel attack similar to Spectre and Meltdown. Fortunately, the fallout from this one shouldn't be as far reaching as those, nor is it as serious.

In a security bulletin, Intel refers to the new attack vector as a "Lazy FP state restore' bug. Red Hat is calling it a "Lazy FPU Restore" flaw. Both refer to the same thing, which is a speculative execution side channel attack affecting Sandy Bridge and newer Core processors.