diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 9ee5a4bbb2894..068ffa6983182 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -765,6 +765,12 @@ ssize_t tcp_splice_read(struct socket *sock, loff_t *ppos, ret = -EAGAIN; break; } + /* if __tcp_splice_read() got nothing while we have + * an skb in receive queue, we do not want to loop. + * This might happen with URG data. + */ + if (!skb_queue_empty(&sk->sk_receive_queue)) + break; sk_wait_data(sk, &timeo); if (signal_pending(current)) { ret = sock_intr_errno(timeo);