Comment by rurban

asan being less feature complete than memcheck is arguably wrong. if you look at their feature overview https://code.google.com/p/address-sanitizer/wiki/ComparisonO... you'll see that they do detect stack oob and global oob (buffer overflows), and some use after return. being 10-20x faster also helps, that rarely someones uses valgrind (we found a lot of bugs even valgrind would have detected, if someone would have tried), but you can ship betas compiled with asan.