static void intel_pebs_aliases_core2(struct perf_event *event)
{
	if ((event->hw.config & X86_RAW_EVENT_MASK) == 0x003c) {
		/*
		 * Use an alternative encoding for CPU_CLK_UNHALTED.THREAD_P
		 * (0x003c) so that we can use it with PEBS.
		 *
		 * The regular CPU_CLK_UNHALTED.THREAD_P event (0x003c) isn't
		 * PEBS capable. However we can use INST_RETIRED.ANY_P
		 * (0x00c0), which is a PEBS capable event, to get the same
		 * count.
		 *
		 * INST_RETIRED.ANY_P counts the number of cycles that retires
		 * CNTMASK instructions. By setting CNTMASK to a value (16)
		 * larger than the maximum number of instructions that can be
		 * retired per cycle (4) and then inverting the condition, we
		 * count all cycles that retire 16 or less instructions, which
		 * is every cycle.
		 *
		 * Thereby we gain a PEBS capable cycle counter.
		 */
		u64 alt_config = X86_CONFIG(.event=0xc0, .inv=1, .cmask=16);

		alt_config |= (event->hw.config & ~X86_RAW_EVENT_MASK);
		event->hw.config = alt_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.