From: Eric Dumazet <edumazet@google.com>
Date: Fri, 31 Jan 2020 18:44:50 +0000 (-0800)
Subject: tcp: clear tp->segs_{in|out} in tcp_disconnect()
X-Git-Tag: v4.19.103~175
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=7e23f798afdc70774fb5447d9db364da558eb457;p=thirdparty%2Fkernel%2Fstable.git

tcp: clear tp->segs_{in|out} in tcp_disconnect()

[ Upstream commit 784f8344de750a41344f4bbbebb8507a730fc99c ]

tp->segs_in and tp->segs_out need to be cleared in tcp_disconnect().

tcp_disconnect() is rarely used, but it is worth fixing it.

Fixes: 2efd055c53c0 ("tcp: add tcpi_segs_in and tcpi_segs_out to tcp_info")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Marcelo Ricardo Leitner <mleitner@redhat.com>
Cc: Yuchung Cheng <ycheng@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 3c6664a74f894..34fda81c7db06 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2605,6 +2605,8 @@ int tcp_disconnect(struct sock *sk, int flags)
 	sk->sk_rx_dst = NULL;
 	tcp_saved_syn_free(tp);
 	tp->compressed_ack = 0;
+	tp->segs_in = 0;
+	tp->segs_out = 0;
 	tp->bytes_sent = 0;
 	tp->bytes_acked = 0;
 	tp->bytes_received = 0;