--- zzzz-none-000/linux-4.4.271/net/ipv6/exthdrs.c	2021-06-03 06:22:09.000000000 +0000
+++ hawkeye-5590-750/linux-4.4.271/net/ipv6/exthdrs.c	2023-04-19 10:22:30.000000000 +0000
@@ -573,7 +573,7 @@
 		goto drop;
 	}
 
-	pkt_len = ntohl(*(__be32 *)(nh + optoff + 2));
+	pkt_len = ntohl(net_hdr_word(nh + optoff + 2));
 	if (pkt_len <= IPV6_MAXPLEN) {
 		IP6_INC_STATS_BH(net, ipv6_skb_idev(skb),
 				 IPSTATS_MIB_INHDRERRORS);