hey i am not Harry Tattle and I am not the (youtube warning-->> ) Central Scrutinizer of memory leaks :))) However, I must note that a few days ago I was gutted when I learned that every android is potentially pwned because of a freeing-memory bug in libpng gloogle was too lax to fix for some time (for obvious-to-me reasons) ...

On the serious side, if the exec frees all memory then that's as good as a manual memory deallocation i guess. garbage collection can manifest itself in many forms! :)