[PATCH 5.5 011/367] tcp: clear tp->total_retrans in tcp_disconnect()

Greg Kroah-Hartman
2020-02-10T13:09:53Z

From: Eric Dumazet <edumazet@google.com>

[ Upstream commit c13c48c00a6bc1febc73902505bdec0967bd7095 ]

total_retrans needs to be cleared in tcp_disconnect().

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

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: SeongJae Park <sjpark@amazon.de>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
net/ipv4/tcp.c | 1 +
1 file changed, 1 insertion(+)

--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2625,6 +2625,7 @@ int tcp_disconnect(struct sock *sk, int
tcp_set_ca_state(sk, TCP_CA_Open);
tp->is_sack_reneg = 0;
tcp_clear_retrans(tp);
+ tp->total_retrans = 0;
inet_csk_delack_init(sk);
/* Initialize rcv_mss to TCP_MIN_MSS to avoid division by 0
* issue in __tcp_select_window()