https://www.pcgamer.com/intel-releases-a-new-round-of-spectre-and-meltdown-patches/

Intel has begun shipping microcode updates to its OEM partners to deal with Spectre and Meltdown, and presumably they don't come with the unwanted side effect of bricking PCs or random reboots.

That hasn't always been the case since Spectre and Meltdown erupted onto the scene. Intel's first attempt at patching the problem caused some systems to reboot unexpectedly, while Microsoft's own efforts to mitigate the threats resulted in some older AMD PCs refusing to boot altogether.