void RenderWidgetHostImpl::CancelKeyboardLock() {
  if (delegate_)
    delegate_->CancelKeyboardLock(this);

  UnlockKeyboard();

  keyboard_lock_allowed_ = false;
  keyboard_lock_requested_ = false;
  keyboard_keys_to_lock_.reset();
}

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.