diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 6d56c77741e1..81068b585764 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -1223,8 +1223,10 @@ static int hci_sock_bind(struct socket *sock, struct sockaddr_unsized *addr,
 	 */
 	hdev = hci_pi(sk)->hdev;
 	if (hdev && hci_dev_test_flag(hdev, HCI_UNREGISTER)) {
+		write_lock(&hci_sk_list.lock);
 		hci_pi(sk)->hdev = NULL;
 		sk->sk_state = BT_OPEN;
+		write_unlock(&hci_sk_list.lock);
 		hci_dev_put(hdev);
 	}
 	hdev = NULL;