I did something stupid!

Know what it was? It was compiling C++ code on a single-user system without knowing barely anything about the language, then running running that code on a multi-user system far later and finding out, hey, I'm segfaulting!

Any way I can try to patch up any possible memory leaks in my normal computer?

Well, you could start off with freeing any memory allocated with new by calling free at the right time.

By the way, segfault rarely happens because of memory leaks.