On Jan 5, 2018, at 8:52 AM, <Paul.Koning%dell.com@localhost> <Paul.Koning%dell.com@localhost> wrote:so the illegal read is also speculative, and is voided (exception and all) when the wrong branch prediction is sorted out. But it looks like the paper is saying that refinement has not been demonstrated, though such branch prediction hacks have been shown in other exploits. Still, if that can be done, a test for "SEGV too often" is no help.
Actually, the _javascript_ exploit works exactly in this way. Sigh.
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