static int send_signal(int sig, struct siginfo *info, struct task_struct *t,
			int group)
{
	int from_ancestor_ns = 0;

#ifdef CONFIG_PID_NS
	from_ancestor_ns = si_fromuser(info) &&
			   !task_pid_nr_ns(current, task_active_pid_ns(t));
#endif

	return __send_signal(sig, info, t, group, from_ancestor_ns);
}

This vulnerability category highlights issues in resource management where failures to properly release memory, file handles, or other resources can degrade system performance or enable denial-of-service conditions.