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Intel Linux Patch Would Report Outdated CPU Microcode As A Security Vulnerability
(www.phoronix.com)
this post was submitted on 12 Nov 2024
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How does it know if the microcode is outdated?
@ryannathans @captainkangaroo I'm going to make the wild assumption that the kernel will have a table of the current microcode versions at the time of it's release, but I doubt that
will get updated except by kernel upgrades.
If that's the case, why wouldn't they put the microcode in the kernel?
@ryannathans Why bloat the kernel with the microcode for every intel processor that might need it (and there is a similar thing for AMD) when you don't have that specific processor? It does make more sense for it to be a separate, especially on memory constrained systems. I mean if you've got 256GB of RAM probably not a big deal but if you've got 256MB a big deal.
The kernel compilation is already configurable between megabytes and gigabyte+
Distros pick their featureset