1 files changed, 1 insertions, 0 deletions

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 104b02e3ee2..c3a9f033ef3 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -328,6 +328,7 @@ static void tcp_grow_window(struct sock *sk, struct sk_buff *skb)
                         incr = __tcp_grow_window(sk, skb);
 
                 if (incr) {
+                        incr = max_t(int, incr, 2 * skb->len);
                         tp->rcv_ssthresh = min(tp->rcv_ssthresh + incr,
                                                tp->window_clamp);
                         inet_csk(sk)->icsk_ack.quick |= 1;