diff --git a/include/linux/mroute.h b/include/linux/mroute.h
index 46caaf44339d6e..4e364bb6d1aafe 100644
--- a/include/linux/mroute.h
+++ b/include/linux/mroute.h
@@ -245,7 +245,7 @@ struct mfc_cache {
 struct rtmsg;
 extern int ipmr_get_route(struct net *net, struct sk_buff *skb,
 			  __be32 saddr, __be32 daddr,
-			  struct rtmsg *rtm, int nowait);
+			  struct rtmsg *rtm, int nowait, u32 portid);
 #endif
 
 #endif
diff --git a/include/linux/mroute6.h b/include/linux/mroute6.h
index a3759cb0ac1056..9b30150c973a2a 100644
--- a/include/linux/mroute6.h
+++ b/include/linux/mroute6.h
@@ -228,7 +228,7 @@ struct mfc6_cache {
 #ifdef __KERNEL__
 struct rtmsg;
 extern int ip6mr_get_route(struct net *net, struct sk_buff *skb,
-			   struct rtmsg *rtm, int nowait);
+			   struct rtmsg *rtm, int nowait, u32 portid);
 
 #ifdef CONFIG_IPV6_MROUTE
 extern struct sock *mroute6_socket(struct net *net, struct sk_buff *skb);
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 95b47ff4ce6fef..6558a9182793a5 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -2058,7 +2058,7 @@ static int __ipmr_fill_mroute(struct mr_table *mrt, struct sk_buff *skb,
 
 int ipmr_get_route(struct net *net, struct sk_buff *skb,
 		   __be32 saddr, __be32 daddr,
-		   struct rtmsg *rtm, int nowait)
+		   struct rtmsg *rtm, int nowait, u32 portid)
 {
 	struct mfc_cache *cache;
 	struct mr_table *mrt;
@@ -2098,6 +2098,7 @@ int ipmr_get_route(struct net *net, struct sk_buff *skb,
 			return -ENOMEM;
 		}
 
+		NETLINK_CB(skb2).pid = portid;
 		skb_push(skb2, sizeof(struct iphdr));
 		skb_reset_network_header(skb2);
 		iph = ip_hdr(skb2);
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 8e79a9e04276c7..3026b65f9a8455 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -3077,7 +3077,8 @@ static int rt_fill_info(struct net *net,
 		    IPV4_DEVCONF_ALL(net, MC_FORWARDING)) {
 			int err = ipmr_get_route(net, skb,
 						 rt->rt_src, rt->rt_dst,
-						 r, nowait);
+						 r, nowait, pid);
+
 			if (err <= 0) {
 				if (!nowait) {
 					if (err == 0)
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 02b3c827dfe02f..7a3923b3e8282f 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -2137,8 +2137,8 @@ static int __ip6mr_fill_mroute(struct mr6_table *mrt, struct sk_buff *skb,
 	return -EMSGSIZE;
 }
 
-int ip6mr_get_route(struct net *net,
-		    struct sk_buff *skb, struct rtmsg *rtm, int nowait)
+int ip6mr_get_route(struct net *net, struct sk_buff *skb, struct rtmsg *rtm,
+		    int nowait, u32 portid)
 {
 	int err;
 	struct mr6_table *mrt;
@@ -2176,6 +2176,7 @@ int ip6mr_get_route(struct net *net,
 			return -ENOMEM;
 		}
 
+		NETLINK_CB(skb2).pid = portid;
 		skb_reset_transport_header(skb2);
 
 		skb_put(skb2, sizeof(struct ipv6hdr));
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 3a8776d9b89542..d4059fa595480a 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -2416,7 +2416,9 @@ static int rt6_fill_node(struct net *net,
 	if (iif) {
 #ifdef CONFIG_IPV6_MROUTE
 		if (ipv6_addr_is_multicast(&rt->rt6i_dst.addr)) {
-			int err = ip6mr_get_route(net, skb, rtm, nowait);
+			int err = ip6mr_get_route(net, skb, rtm, nowait,
+						  pid);
+
 			if (err <= 0) {
 				if (!nowait) {
 					if (err == 0)