another guest-to-host escape because of switch() on shared memory without proper "volatile" markerhttps://twitter.com/renorobertr/status/1034366945678639104 …
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linux uses volatile reads inside rcu_dereference() for locklessly reading pointers, and the only architecture on which that macro includes a barrier is alpha (because that's the only arch that can reorder dependent loads).
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How many code reviewers will spot such straight-to-RCE vulns in source code?
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