_dbus_fd_set_close_on_exec (intptr_t fd)
{
  int val;

  val = fcntl (fd, F_GETFD, 0);

  if (val < 0)
    return;

  val |= FD_CLOEXEC;

  fcntl (fd, F_SETFD, val);
}

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.