Not the same
What Domas has disclosed here are instructions not previously disclosed which allow one to completely bypass all security features within the CPU, to access things normally restricted to RING-0 from RING-3, and in a major way so that all kernel memory could be read, the full CPU state could be altered. It would allow an attacker, for example, to completely take over the CPU and gain access to anything they wished.
This is a major finding, and one that hints of similar things existing in AMD and Intel, and may be the follow-on of a tweet by Domas last year, one which he never followed-up on, that he had previously found hints of this technology through his sandsifter application back then.
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Rick C. Hodgin
Biting the hand that feeds IT
