You can use `explicit_bzero()` to bypass DCE (dead code elimination). Otherwise, simply initializing your memory before using is enough to trigger magic failure

You can use `explicit_bzero()` to bypass DCE (dead code elimination). Otherwise, simply initializing your memory before using is enough to trigger magic failures when you use-after-free. C programs barely function if they do not initialize memory. Context, I work on Varnish which the OP referenced for this.