> `ppoll(2)` is a C library function you call. ppoll is a real system call on all Linux systems and has been for over a decade. > It is true that you could tr

> `ppoll(2)` is a C library function you call. ppoll is a real system call on all Linux systems and has been for over a decade. > It is true that you could try to figure out whether the faulting address is within a range you thought belonged to a particular thing, Which programs do, reliably, all the time. > You won't get false negatives, but will get false positives. No, you won't. Once a program wanders into la-la land of memory corruption, all bets are off anyway.