static void perf_swevent_overflow(struct perf_event *event, u64 overflow,
				    int nmi, struct perf_sample_data *data,
				    struct pt_regs *regs)
{
	struct hw_perf_event *hwc = &event->hw;
	int throttle = 0;

	data->period = event->hw.last_period;
	if (!overflow)
		overflow = perf_swevent_set_period(event);

	if (hwc->interrupts == MAX_INTERRUPTS)
		return;

	for (; overflow; overflow--) {
		if (__perf_event_overflow(event, nmi, throttle,
					    data, regs)) {
			/*
			 * We inhibit the overflow from happening when
			 * hwc->interrupts == MAX_INTERRUPTS.
			 */
			break;
		}
		throttle = 1;
	}
}
The software does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.