Status: Accepted
Owner: [email protected]
CC: [email protected], [email protected]
Labels: Type-Bug Priority-Medium
New issue 3771 by [email protected]: V8 is not -fsanitize=alignment
clean
https://code.google.com/p/v8/issues/detail?id=3771
There are various places in V8 which access unaligned memory via plain
pointer dereferences. While this is semantically OK on Intel, it can be a
symptom of VM correctness issues (not all platforms like those accesses)
and/or performance issues. We should either ensure correct alignment or use
memcpy to make it clear to the compiler that we might do an unaligned
access.
Examples of this problem are patching of addresses within code and various
places in the (de-)serializer.
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