From a5e7c210fefd2454c757a3542e41063407ca7108 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@sunset.davemloft.net>
Date: Mon, 3 Oct 2005 14:21:58 -0700
Subject: [PATCH] [IPV6]: Fix leak added by udp connect dst caching fix.

Based upon a patch from Mitsuru KANDA <mk@linux-ipv6.org>

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/udp.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 6001948600f..e4cad11f284 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -852,10 +852,16 @@ do_append_data:
 	else if (!corkreq)
 		err = udp_v6_push_pending_frames(sk, up);
 
-	if (dst && connected)
-		ip6_dst_store(sk, dst,
-			      ipv6_addr_equal(&fl->fl6_dst, &np->daddr) ?
-			      &np->daddr : NULL);
+	if (dst) {
+		if (connected) {
+			ip6_dst_store(sk, dst,
+				      ipv6_addr_equal(&fl->fl6_dst, &np->daddr) ?
+				      &np->daddr : NULL);
+		} else {
+			dst_release(dst);
+		}
+	}
+
 	if (err > 0)
 		err = np->recverr ? net_xmit_errno(err) : 0;
 	release_sock(sk);
-- 
2.11.4.GIT