From 5022fce17b72c5e63c374b2cb433f734a183ea09 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 31 Jan 2020 10:32:41 -0800 Subject: [PATCH] tcp: clear tp->data_segs{in|out} in tcp_disconnect() [ Upstream commit db7ffee6f3eb3683cdcaeddecc0a630a14546fe3 ] tp->data_segs_in and tp->data_segs_out need to be cleared in tcp_disconnect(). tcp_disconnect() is rarely used, but it is worth fixing it. Fixes: a44d6eacdaf5 ("tcp: Add RFC4898 tcpEStatsPerfDataSegsOut/In") Signed-off-by: Eric Dumazet Cc: Martin KaFai Lau Cc: Yuchung Cheng Cc: Neal Cardwell Acked-by: Neal Cardwell Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- net/ipv4/tcp.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 9fa1e9a4c932..dd1599c1ccad 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -2316,6 +2316,8 @@ int tcp_disconnect(struct sock *sk, int flags) tcp_saved_syn_free(tp); tp->bytes_acked = 0; tp->bytes_received = 0; + tp->data_segs_in = 0; + tp->data_segs_out = 0; WARN_ON(inet->inet_num && !icsk->icsk_bind_hash); -- 2.20.1