[3.8.y.z extended stable] Patch "net: do not call sock_put() on TIMEWAIT sockets" has been added to staging queue

[Kamal Mostafa]

This is a note to let you know that I have just added a patch titled

    net: do not call sock_put() on TIMEWAIT sockets

to the linux-3.8.y-queue branch of the 3.8.y.z extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.8.y-queue

This patch is scheduled to be released in version 3.8.13.13.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.8.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

------

>From 4f207ec1232b995516943115e55859fd308dce54 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet at google.com>
Date: Tue, 1 Oct 2013 21:04:11 -0700
Subject: net: do not call sock_put() on TIMEWAIT sockets

[ Upstream commit 80ad1d61e72d626e30ebe8529a0455e660ca4693 ]

commit 3ab5aee7fe84 ("net: Convert TCP & DCCP hash tables to use RCU /
hlist_nulls") incorrectly used sock_put() on TIMEWAIT sockets.

We should instead use inet_twsk_put()

Signed-off-by: Eric Dumazet <edumazet at google.com>
Signed-off-by: David S. Miller <davem at davemloft.net>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 net/ipv4/inet_hashtables.c  | 2 +-
 net/ipv6/inet6_hashtables.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index fa3ae81..341508d 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -274,7 +274,7 @@ begintw:
 			if (unlikely(!INET_TW_MATCH(sk, net, acookie,
 						    saddr, daddr, ports,
 						    dif))) {
-				sock_put(sk);
+				inet_twsk_put(inet_twsk(sk));
 				goto begintw;
 			}
 			goto out;
diff --git a/net/ipv6/inet6_hashtables.c b/net/ipv6/inet6_hashtables.c
index dea17fd..b9a7bfb 100644
--- a/net/ipv6/inet6_hashtables.c
+++ b/net/ipv6/inet6_hashtables.c
@@ -116,7 +116,7 @@ begintw:
 			}
 			if (unlikely(!INET6_TW_MATCH(sk, net, saddr, daddr,
 						     ports, dif))) {
-				sock_put(sk);
+				inet_twsk_put(inet_twsk(sk));
 				goto begintw;
 			}
 			goto out;
--
1.8.1.2