How to troubleshoot crashes in malloc

Question

I have a large body of legacy code that I inherited. It has worked fine until now. Suddenly at a customer trial that I cannot reproduce inhouse, it crashes in malloc. I thin

Answer 1

Try Asan

AddressSanitizer (aka ASan) is a memory error detector for C/C++. It finds:

Use after free (dangling pointer dereference)
Heap buffer overflow
Stack buffer overflow
Global buffer overflow
Use after return
Use after scope
Initialization order bugs
Memory leaks

Please find the links to know more and how to use it

https://github.com/google/sanitizers/wiki/AddressSanitizer and https://github.com/google/sanitizers/wiki/AddressSanitizerFlags