I was unable to find the quote, but someone once said that "We always focus on the negative effects of undefined behavior, but literally anything could happen. It doesn't have to be bad! Let's replace fear with hope."
Perhaps double free could send a signal to a randomly chosen process forcing it to allocate that newly freed memory for something. A new take on a garbage collector.
I hope those nasal daemons are friendly.
Maybe they can solve the halting problem.
Yes, usually by introducing an infinite loop. Never halts. ;)