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Comment on Exploiting System Management Mode with a very long interruptparent

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If I’ve understood correctly, what your missing here is that the first core in SMM tells the second to join it in SMM, times out on the wait, does its thing and exits, but then the second core joins SMM after the first has exited, so now the first core is running outside SMM, second core in SMM, so first core can attack the second.

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