diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index c7115fdf932ce6eb15abe81df5f1a901b7af65b1..960b0c987788e7f153915ab73785ece746799ce9 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -4229,6 +4229,10 @@ static int rtm_to_fib6_config(struct sk_buff *skb, struct nlmsghdr *nlh,
 		cfg->fc_gateway = nla_get_in6_addr(tb[RTA_GATEWAY]);
 		cfg->fc_flags |= RTF_GATEWAY;
 	}
+	if (tb[RTA_VIA]) {
+		NL_SET_ERR_MSG(extack, "IPv6 does not support RTA_VIA attribute");
+		goto errout;
+	}
 
 	if (tb[RTA_DST]) {
 		int plen = (rtm->rtm_dst_len + 7) >> 3;