void RenderWidgetHostImpl::OnUnlockMouse() {
  const bool was_mouse_locked = !pending_mouse_lock_request_ && IsMouseLocked();
  RejectMouseLockOrUnlockIfNecessary();
  if (was_mouse_locked)
    is_last_unlocked_by_target_ = true;
}

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.