--- zzzz-none-000/linux-4.4.271/include/uapi/linux/udp.h	2021-06-03 06:22:09.000000000 +0000
+++ hawkeye-5590-750/linux-4.4.271/include/uapi/linux/udp.h	2023-04-19 10:22:30.000000000 +0000
@@ -24,7 +24,7 @@
 	__be16	dest;
 	__be16	len;
 	__sum16	check;
-};
+} __attribute__((packed, aligned(2)));
 
 /* UDP socket options */
 #define UDP_CORK	1	/* Never send partially complete segments */