static __u32 tpacket_get_timestamp(struct sk_buff *skb, struct timespec *ts,
				   unsigned int flags)
{
	struct skb_shared_hwtstamps *shhwtstamps = skb_hwtstamps(skb);

	if (shhwtstamps) {
		if ((flags & SOF_TIMESTAMPING_SYS_HARDWARE) &&
		    ktime_to_timespec_cond(shhwtstamps->syststamp, ts))
			return TP_STATUS_TS_SYS_HARDWARE;
		if ((flags & SOF_TIMESTAMPING_RAW_HARDWARE) &&
		    ktime_to_timespec_cond(shhwtstamps->hwtstamp, ts))
			return TP_STATUS_TS_RAW_HARDWARE;
	}

	if (ktime_to_timespec_cond(skb->tstamp, ts))
		return TP_STATUS_TS_SOFTWARE;

	return 0;
}

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.