ASan diagnosis only special-cases the too-large allocations. So we end up with some goofy diagnoses like UB: SEGV which should indicate clearly that this is a null pointer deref, and UB: attempting which is just the first word of "attempting double free".
https://github.com/saethlin/crater-at-home/blob/eaaea3d9c30b5d7d6daf2723fbf994af8369a113/src/diagnose.rs#L70-L79
ASan diagnosis only special-cases the too-large allocations. So we end up with some goofy diagnoses like
UB: SEGVwhich should indicate clearly that this is a null pointer deref, andUB: attemptingwhich is just the first word of "attempting double free".