Re: [PATCH] mailmap: avoid out-of-bounds memory access
- From
Romain Francoise <romain@orebokech.com>
- Date
- Oct 28, 2012, 13:21 UTC
- Message-ID
- <87k3ua3f6q.fsf@silenus.orebokech.com>
- In-Reply-To
- <20121028110207.GA11434@sigill.intra.peff.net>
Jeff King <peff@peff.net> writes:
> So you could also check for "left == nstart" before the loop even > begins. I think your fix (to just make the loop more robust to that > precondition) is better, though, as the rest of the code does the right > thing with such a value of nend.
Yep.
> It looks like t4203 triggers this problem. Curious that valgrind does > not find it. I guess since it does not have compiler support, it cannot > find out-of-bound errors on stack buffers. Does the rest of the test > suite turn up clean with AddressSanitizer?
I tested your 'master' and your 'pu' with expensive tests enabled and both are clean after fixing t4203.
Thanks!