static inline void cma_set_ip_ver(struct cma_hdr *hdr, u8 ip_ver)
{
	hdr->ip_version = (ip_ver << 4) | (hdr->ip_version & 0xF);
}

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.