You know, double-free/invalid-free bugs could be trivially eliminated with an ABI having fat pointers.
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cool idea. would it be possible (or worthwhile) to cram a 16-bit ID into the unused high-order bits on x86-64?
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I don't think so. It's insufficient to protect against intentional attacks and mandates an ABI change anyway.
End of conversation
New conversation -
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is that a different premise than allocation metadata? (asking idly, haven't had coffee)
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