4 files changed, 21 insertions, 12 deletions

diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 2b2b3d291ab0..1ab2fb6bb37d 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -2145,7 +2145,7 @@ static int fn_trie_dump_leaf(struct key_vector *l, struct fib_table *tb,
 
 		if (filter->dump_exceptions) {
 			err = fib_dump_info_fnhe(skb, cb, tb->tb_id, fi,
-						 &i_fa, s_fa);
+						 &i_fa, s_fa, flags);
 			if (err < 0)
 				goto stop;
 		}
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 1510e951f451..4298aae74e0e 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -582,7 +582,13 @@ void __icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info,
 
 	if (!rt)
 		goto out;
-	net = dev_net(rt->dst.dev);
+
+	if (rt->dst.dev)
+		net = dev_net(rt->dst.dev);
+	else if (skb_in->dev)
+		net = dev_net(skb_in->dev);
+	else
+		goto out;
 
 	/*
 	 *	Find the original header. It is expected to be valid, of course.
@@ -902,7 +908,7 @@ static bool icmp_redirect(struct sk_buff *skb)
 		return false;
 	}
 
-	icmp_socket_deliver(skb, icmp_hdr(skb)->un.gateway);
+	icmp_socket_deliver(skb, ntohl(icmp_hdr(skb)->un.gateway));
 	return true;
 }
 
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 180f6896b98b..480d0b22db1a 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -1475,7 +1475,7 @@ EXPORT_SYMBOL(__ip_mc_inc_group);
 
 void ip_mc_inc_group(struct in_device *in_dev, __be32 addr)
 {
-	__ip_mc_inc_group(in_dev, addr, MCAST_EXCLUDE);
+	__ip_mc_inc_group(in_dev, addr, GFP_KERNEL);
 }
 EXPORT_SYMBOL(ip_mc_inc_group);
 
@@ -2197,7 +2197,7 @@ static int __ip_mc_join_group(struct sock *sk, struct ip_mreqn *imr,
 	iml->sflist = NULL;
 	iml->sfmode = mode;
 	rcu_assign_pointer(inet->mc_list, iml);
-	__ip_mc_inc_group(in_dev, addr, mode);
+	____ip_mc_inc_group(in_dev, addr, mode, GFP_KERNEL);
 	err = 0;
 done:
 	return err;
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 517300d587a7..b6a6f18c3dd1 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -2728,7 +2728,8 @@ EXPORT_SYMBOL_GPL(ip_route_output_flow);
 /* called with rcu_read_lock held */
 static int rt_fill_info(struct net *net, __be32 dst, __be32 src,
 			struct rtable *rt, u32 table_id, struct flowi4 *fl4,
-			struct sk_buff *skb, u32 portid, u32 seq)
+			struct sk_buff *skb, u32 portid, u32 seq,
+			unsigned int flags)
 {
 	struct rtmsg *r;
 	struct nlmsghdr *nlh;
@@ -2736,7 +2737,7 @@ static int rt_fill_info(struct net *net, __be32 dst, __be32 src,
 	u32 error;
 	u32 metrics[RTAX_MAX];
 
-	nlh = nlmsg_put(skb, portid, seq, RTM_NEWROUTE, sizeof(*r), 0);
+	nlh = nlmsg_put(skb, portid, seq, RTM_NEWROUTE, sizeof(*r), flags);
 	if (!nlh)
 		return -EMSGSIZE;
 
@@ -2860,7 +2861,7 @@ nla_put_failure:
 static int fnhe_dump_bucket(struct net *net, struct sk_buff *skb,
 			    struct netlink_callback *cb, u32 table_id,
 			    struct fnhe_hash_bucket *bucket, int genid,
-			    int *fa_index, int fa_start)
+			    int *fa_index, int fa_start, unsigned int flags)
 {
 	int i;
 
@@ -2891,7 +2892,7 @@ static int fnhe_dump_bucket(struct net *net, struct sk_buff *skb,
 			err = rt_fill_info(net, fnhe->fnhe_daddr, 0, rt,
 					   table_id, NULL, skb,
 					   NETLINK_CB(cb->skb).portid,
-					   cb->nlh->nlmsg_seq);
+					   cb->nlh->nlmsg_seq, flags);
 			if (err)
 				return err;
 next:
@@ -2904,7 +2905,7 @@ next:
 
 int fib_dump_info_fnhe(struct sk_buff *skb, struct netlink_callback *cb,
 		       u32 table_id, struct fib_info *fi,
-		       int *fa_index, int fa_start)
+		       int *fa_index, int fa_start, unsigned int flags)
 {
 	struct net *net = sock_net(cb->skb->sk);
 	int nhsel, genid = fnhe_genid(net);
@@ -2922,7 +2923,8 @@ int fib_dump_info_fnhe(struct sk_buff *skb, struct netlink_callback *cb,
 		err = 0;
 		if (bucket)
 			err = fnhe_dump_bucket(net, skb, cb, table_id, bucket,
-					       genid, fa_index, fa_start);
+					       genid, fa_index, fa_start,
+					       flags);
 		rcu_read_unlock();
 		if (err)
 			return err;
@@ -3183,7 +3185,8 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh,
 				    fl4.flowi4_tos, res.fi, 0);
 	} else {
 		err = rt_fill_info(net, dst, src, rt, table_id, &fl4, skb,
-				   NETLINK_CB(in_skb).portid, nlh->nlmsg_seq);
+				   NETLINK_CB(in_skb).portid,
+				   nlh->nlmsg_seq, 0);
 	}
 	if (err < 0)
 		goto errout_rcu;