static void intel_pmu_enable_all(int added)
{
	struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);

	intel_pmu_pebs_enable_all();
	intel_pmu_lbr_enable_all();
	wrmsrl(MSR_CORE_PERF_GLOBAL_CTRL,
			x86_pmu.intel_ctrl & ~cpuc->intel_ctrl_guest_mask);

	if (test_bit(INTEL_PMC_IDX_FIXED_BTS, cpuc->active_mask)) {
		struct perf_event *event =
			cpuc->events[INTEL_PMC_IDX_FIXED_BTS];

		if (WARN_ON_ONCE(!event))
			return;

		intel_pmu_enable_bts(event->hw.config);
	}
}

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.