Adding check if dlsym was called before calling malloc+free family.

zardus / preeny

Some helpful preload libraries for pwning stuff.

BSD 2-Clause "Simplified" License

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Adding check if dlsym was called before calling malloc+free family. #60

Closed sudhackar closed 5 years ago

sudhackar commented 5 years ago

Fixes #59

Verify if original_malloc was actually resolved before calling it. If not, just call preeny_mallocwatch_orig to get it resolved. Technically free and realloc would never be called in a scenario like that but added just in case.

zardus commented 5 years ago

Thanks!