Earlier quoted context omitted.
ASan is better for finding memory corruption afaik
Ok. But I'm guessing it has the same problems. I.e., if half your libraries/modules have never seen it, then you'll get a lot of noise. Happy to be proved wrong.
The compiler can't add checks into code it hasn't compiled. External modules, unless they are doing weird things which you do want to know about, should not generate ASan reports... on Linux.