From: Arnaldo Carvalho de Melo <acme@mandriva.com>
Date: Tue, 13 Sep 2005 22:03:15 +0000 (-0300)
Subject: [DCCP]: Check if already in the CLOSING state in dccp_rcv_closereq
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=811265b8e8bf84e3b91507bf6a3a8eea20e7a4b7;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

[DCCP]: Check if already in the CLOSING state in dccp_rcv_closereq

It is possible to receive more than one CLOSEREQ packet if the
CLOSE packet sent in response is somehow lost, change the state
to DCCP_CLOSING only on the first CLOSEREQ packet received.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
---

diff --git a/net/dccp/input.c b/net/dccp/input.c
index c60bc3433f5e..f01d588299c8 100644
--- a/net/dccp/input.c
+++ b/net/dccp/input.c
@@ -50,7 +50,8 @@ static void dccp_rcv_closereq(struct sock *sk, struct sk_buff *skb)
 		return;
 	}
 
-	dccp_set_state(sk, DCCP_CLOSING);
+	if (sk->sk_state != DCCP_CLOSING)
+		dccp_set_state(sk, DCCP_CLOSING);
 	dccp_send_close(sk, 0);
 }