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-rw-r--r--sys/netinet/tcp_input.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/netinet/tcp_input.c b/sys/netinet/tcp_input.c
index 25cb76b..44ee416 100644
--- a/sys/netinet/tcp_input.c
+++ b/sys/netinet/tcp_input.c
@@ -1756,7 +1756,8 @@ tcp_do_segment(struct mbuf *m, struct tcphdr *th, struct socket *so,
(TF_RCVD_SCALE|TF_REQ_SCALE)) {
tp->rcv_scale = tp->request_r_scale;
}
- tp->rcv_adv += tp->rcv_wnd;
+ tp->rcv_adv += imin(tp->rcv_wnd,
+ TCP_MAXWIN << tp->rcv_scale);
tp->snd_una++; /* SYN is acked */
/*
* If there's data, delay ACK; if there's also a FIN
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