1 files changed, 2 insertions, 2 deletions

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index c59d0bd29c5c..883ee863db43 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -477,7 +477,7 @@ static void tcp_tx_timestamp(struct sock *sk, u16 tsflags)
 static inline bool tcp_stream_is_readable(const struct tcp_sock *tp,
                                           int target, struct sock *sk)
 {
-        return (tp->rcv_nxt - tp->copied_seq >= target) ||
+        return (READ_ONCE(tp->rcv_nxt) - tp->copied_seq >= target) ||
                 (sk->sk_prot->stream_memory_read ?
                 sk->sk_prot->stream_memory_read(sk) : false);
 }
@@ -2935,7 +2935,7 @@ static int do_tcp_setsockopt(struct sock *sk, int level,
                 else if (tp->repair_queue == TCP_SEND_QUEUE)
                         tp->write_seq = val;
                 else if (tp->repair_queue == TCP_RECV_QUEUE)
-                        tp->rcv_nxt = val;
+                        WRITE_ONCE(tp->rcv_nxt, val);
                 else
                         err = -EINVAL;
                 break;