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-rw-r--r--net/tipc/socket.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index 922b75ff56d3..a7b3e1a070e4 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -2151,6 +2151,7 @@ static void tipc_sk_filter_rcv(struct sock *sk, struct sk_buff *skb,
struct tipc_msg *hdr = buf_msg(skb);
struct net *net = sock_net(sk);
struct sk_buff_head inputq;
+ int mtyp = msg_type(hdr);
int limit, err = TIPC_OK;
trace_tipc_sk_filter_rcv(sk, skb, TIPC_DUMP_ALL, " ");
@@ -2164,7 +2165,7 @@ static void tipc_sk_filter_rcv(struct sock *sk, struct sk_buff *skb,
if (unlikely(grp))
tipc_group_filter_msg(grp, &inputq, xmitq);
- if (msg_type(hdr) == TIPC_MCAST_MSG)
+ if (unlikely(!grp) && mtyp == TIPC_MCAST_MSG)
tipc_mcast_filter_msg(&tsk->mc_method.deferredq, &inputq);
/* Validate and add to receive buffer if there is space */