--- zzzz-none-000/linux-4.4.271/net/ipv4/igmp.c	2021-06-03 06:22:09.000000000 +0000
+++ hawkeye-5590-750/linux-4.4.271/net/ipv4/igmp.c	2023-04-19 10:22:30.000000000 +0000
@@ -533,7 +533,7 @@
 		if (!skb)
 			return NULL;
 		psrc = (__be32 *)skb_put(skb, sizeof(__be32));
-		*psrc = psf->sf_inaddr;
+		net_hdr_word(psrc) = psf->sf_inaddr;
 		scount++; stotal++;
 		if ((type == IGMPV3_ALLOW_NEW_SOURCES ||
 		     type == IGMPV3_BLOCK_OLD_SOURCES) && psf->sf_crcount) {