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-rw-r--r--net/sctp/socket.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index ff8bc95670ed..9f5d7930f54d 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -6325,6 +6325,7 @@ static void sctp_sock_migrate(struct sock *oldsk, struct sock *newsk,
 	struct sctp_endpoint *newep = newsp->ep;
 	struct sk_buff *skb, *tmp;
 	struct sctp_ulpevent *event;
+	struct sctp_bind_hashbucket *head;
 	int flags = 0;
 
 	/* Migrate socket buffer sizes and all the socket level options to the
@@ -6342,10 +6343,15 @@ static void sctp_sock_migrate(struct sock *oldsk, struct sock *newsk,
 	newsp->hmac = NULL;
 
 	/* Hook this new socket in to the bind_hash list. */
+	head = &sctp_port_hashtable[sctp_phashfn(inet_sk(oldsk)->num)];
+	sctp_local_bh_disable();
+	sctp_spin_lock(&head->lock);
 	pp = sctp_sk(oldsk)->bind_hash;
 	sk_add_bind_node(newsk, &pp->owner);
 	sctp_sk(newsk)->bind_hash = pp;
 	inet_sk(newsk)->num = inet_sk(oldsk)->num;
+	sctp_spin_unlock(&head->lock);
+	sctp_local_bh_enable();
 
 	/* Copy the bind_addr list from the original endpoint to the new
 	 * endpoint so that we can handle restarts properly