
< 		ICMP6MSGOUT_INC_STATS(net, idev, icmp6_type);
---
> 		if (icmp6_type < 256) {
> 			ICMP6MSGOUT_INC_STATS(net, idev, icmp6_type);
> 		} else {
> 			/* Handle invalid icmp6_type */
> 		}
