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Is it possible to catch overwriting of libumem's redzone? I uses libumem to analyze a memory corruption and found that redzone of some block is the following:

...
feedface        edfecefa
8014822         18a0a5ea
...

and all blocks after this are swapped the same way. Need to find out where/how it could occur.

Maxim
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  • Look in the sourcecode. Other than that, you can create memory-based breakpoints in some debuggers that will trigger when certain memory ranges are accessed. – Ulrich Eckhardt Dec 22 '15 at 12:27
  • Have you looked at using [watchmalloc](https://docs.oracle.com/cd/E36784_01/html/E36874/watchmalloc-3malloc.html) or the Solaris Studio [bcheck](https://docs.oracle.com/cd/E37069_01/html/E37078/blaio.html#scrolltoc) utility? – Andrew Henle Dec 23 '15 at 10:34

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