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It has nothing to do with AVX AFAICT. They are going to set X86_BUG_CPU_INSECURE [1] on all public Intel CPUs, including old ones that lack AVX (Core2, etc). [
by rphlx 9y ago
It has nothing to do with AVX AFAICT. They are going to set X86_BUG_CPU_INSECURE [1] on all public Intel CPUs, including old ones that lack AVX (Core2, etc).
[1] I do hope they rename that flag to something like X86_BUG_NEEDS_PTI as the current name is bloody abysmal: way too broad and ambiguous, as if this is the only insecurity that ever has or ever will impact x86.
- wilun 9y agoWell that very name hints that it is probably a very annoying bug, with an impact way more annoying that a simple ASLR address leak or data access trace (hell, Intel does not even consider side-channel data access / tlb tracing to SGX a vuln, so this has to be better than that kind of issues...)