static int proc_oom_score(struct task_struct *task, char *buffer)
{
	unsigned long points;
	struct timespec uptime;

	do_posix_clock_monotonic_gettime(&uptime);
	read_lock(&tasklist_lock);
	points = badness(task->group_leader, uptime.tv_sec);
	read_unlock(&tasklist_lock);
	return sprintf(buffer, "%lu\n", points);
}

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.