diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 6463d0e8d0ce..87b0b78249da 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -1217,6 +1217,14 @@ static struct socket *nbd_get_socket(struct nbd_device *nbd, unsigned long fd,
        if (!sock)
                return NULL;
 
+       if (!sk_is_tcp(sock->sk) &&
+           !sk_is_stream_unix(sock->sk)) {
+               dev_err(disk_to_dev(nbd->disk), "Unsupported socket: should be TCP or UNIX.\n");
+               *err = -EINVAL;
+               sockfd_put(sock);
+               return NULL;
+       }
+
        if (sock->ops->shutdown == sock_no_shutdown) {
                dev_err(disk_to_dev(nbd->disk), "Unsupported socket: shutdown callout must be supported.\n");
                *err = -EINVAL;