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 */