Problems with LD_PRELOAD and calloc() interposition for certain executables

Question

Relating to a previous question of mine

I\'ve successfully interposed malloc, but calloc seems to be more problematic.

That is with ce

Answer 1

Using dlsym based hooking can result in crashes, as dlsym calls back into the memory allocator. Instead use malloc hooks, as I suggested in your prior question; these can be installed without actually invoking dlsym at all.