On Thu, Jul 06, 2023 at 03:50:30PM -0700, Axel Rasmussen wrote: > Most userfaultfd ioctls take a `start + len` range as an argument. > We have the validate_range helper to check that such ranges are valid. > However, some (but not all!) ioctls *also* check that `start + len` > doesn't wrap around (overflow). > > Just check for this in validate_range. This saves some repetitive code, > and adds the check to some ioctls which weren't bothering to check for > it before. > > Signed-off-by: Axel Rasmussen <axelrasmussen@xxxxxxxxxx> Reviewed-by: Peter Xu <peterx@xxxxxxxxxx> -- Peter Xu
