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I'm not sure how to think of this new GPU.zip attack. The side channel exists in the GPUs themselves, so it seems fair to think they are vulnerable.

On the other hand, the only (known) way to exploit this side channel is loading iframes into Chrome or Edge, so it also seems reasonable to say these browsers are the things that are vulnerable.

I'm curious to know what you think.

https://arstechnica.com/security/2023/09/gpus-from-all-major-suppliers-are-vulnerable-to-new-pixel-stealing-attack/