That Spectre/langsec post reminds me of a question I asked sometime back: how many computers (which could support machines, weird or otherwise) are in your computer? I count >15 in a normal desktop/smartphone:https://pastebin.com/u3H5YKvM
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Yup. For the ones mentioned in the post, I think almost all are connected to a main bus. IOMMUs are meant to help with this but apparently folks manage to still botch the implementation: https://googleprojectzero.blogspot.com/2017/04/over-air-exploiting-broadcoms-wi-fi_11.html …
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Ah, I was looking for that post, thanks.
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