int pfkey_sockaddr_extract(const struct sockaddr *sa, xfrm_address_t *xaddr)
{
	switch (sa->sa_family) {
	case AF_INET:
		xaddr->a4 =
			((struct sockaddr_in *)sa)->sin_addr.s_addr;
		return AF_INET;
#if IS_ENABLED(CONFIG_IPV6)
	case AF_INET6:
		memcpy(xaddr->a6,
		       &((struct sockaddr_in6 *)sa)->sin6_addr,
		       sizeof(struct in6_addr));
		return AF_INET6;
#endif
	}
	return 0;
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.