Meltdown and Spectre are two recently discovered vulnerabilities that affect
You have a Mac if I recall correctly, so you have an Intel chipset and are
affect by both Meltdown and Spectre. Meltdown has been patched in recent
versions of the Linux kernel, although unfortunately it will slow down your
machine a bit. There is no patch for Spectre at this time, but it can be
You can install a more recent kernel from jxself's repo.