static __poll_t f_hidg_poll(struct file *file, poll_table *wait)
{
	struct f_hidg	*hidg  = file->private_data;
	__poll_t	ret = 0;

	poll_wait(file, &hidg->read_queue, wait);
	poll_wait(file, &hidg->write_queue, wait);

	if (WRITE_COND)
		ret |= EPOLLOUT | EPOLLWRNORM;

	if (READ_COND)
		ret |= EPOLLIN | EPOLLRDNORM;

	return ret;
}

This weakness involves numeric computation errors, such as integer overflows, underflows, or precision losses, which can lead to miscalculations and exploitable behaviors in software.