diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index c91f4c190bbcc41b8162c8ca82d8cbf79c140d8a..c7217d3ecd8bbd787c9a7b94cae1bbcc537b0798 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -1238,6 +1238,10 @@ static void l2cap_sock_kill(struct sock *sk)
 
 	BT_DBG("sk %p state %s", sk, state_to_string(sk->sk_state));
 
+	/* Sock is dead, so set chan data to NULL, avoid other task use invalid
+	 * sock pointer.
+	 */
+	l2cap_pi(sk)->chan->data = NULL;
 	/* Kill poor orphan */
 
 	l2cap_chan_put(l2cap_pi(sk)->chan);
@@ -1480,9 +1484,21 @@ static struct l2cap_chan *l2cap_sock_new_connection_cb(struct l2cap_chan *chan)
 
 static int l2cap_sock_recv_cb(struct l2cap_chan *chan, struct sk_buff *skb)
 {
-	struct sock *sk = chan->data;
+	struct sock *sk;
 	int err;
 
+	/* To avoid race with sock_release, a chan lock needs to be added here
+	 * to synchronize the sock.
+	 */
+	l2cap_chan_hold(chan);
+	l2cap_chan_lock(chan);
+	sk = chan->data;
+	if (!sk) {
+		l2cap_chan_unlock(chan);
+		l2cap_chan_put(chan);
+		return -ENXIO;
+	}
+
 	lock_sock(sk);
 
 	if (l2cap_pi(sk)->rx_busy_skb) {
@@ -1519,6 +1535,8 @@ static int l2cap_sock_recv_cb(struct l2cap_chan *chan, struct sk_buff *skb)
 
 done:
 	release_sock(sk);
+	l2cap_chan_unlock(chan);
+	l2cap_chan_put(chan);
 
 	return err;
 }