static enum hrtimer_restart perf_swevent_hrtimer(struct hrtimer *hrtimer)
{
	enum hrtimer_restart ret = HRTIMER_RESTART;
	struct perf_sample_data data;
	struct pt_regs *regs;
	struct perf_event *event;
	u64 period;

	event = container_of(hrtimer, struct perf_event, hw.hrtimer);

	if (event->state != PERF_EVENT_STATE_ACTIVE)
		return HRTIMER_NORESTART;

	event->pmu->read(event);

	perf_sample_data_init(&data, 0, event->hw.last_period);
	regs = get_irq_regs();

	if (regs && !perf_exclude_event(event, regs)) {
		if (!(event->attr.exclude_idle && is_idle_task(current)))
			if (__perf_event_overflow(event, 1, &data, regs))
				ret = HRTIMER_NORESTART;
	}

	period = max_t(u64, 10000, event->hw.sample_period);
	hrtimer_forward_now(hrtimer, ns_to_ktime(period));

	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.