From b2907e501945d5d13326a6a7441c13e41cd0e799 Mon Sep 17 00:00:00 2001
From: Alexey Dobriyan <adobriyan@gmail.com>
Date: Thu, 11 Feb 2010 18:41:35 +0100
Subject: [PATCH] netfilter: xtables: fix mangle tables
In POST_ROUTING hook, calling dev_net(in) is going to oops.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
net/ipv4/netfilter/iptable_mangle.c | 4 +++-
net/ipv6/netfilter/ip6table_mangle.c | 4 +++-
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/net/ipv4/netfilter/iptable_mangle.c b/net/ipv4/netfilter/iptable_mangle.c
index 58d7097baa3da..c8333305d6315 100644
--- a/net/ipv4/netfilter/iptable_mangle.c
+++ b/net/ipv4/netfilter/iptable_mangle.c
@@ -87,7 +87,9 @@ iptable_mangle_hook(unsigned int hook,
{
if (hook == NF_INET_LOCAL_OUT)
return ipt_local_hook(hook, skb, in, out, okfn);
-
+ if (hook == NF_INET_POST_ROUTING)
+ return ipt_do_table(skb, hook, in, out,
+ dev_net(out)->ipv4.iptable_mangle);
/* PREROUTING/INPUT/FORWARD: */
return ipt_do_table(skb, hook, in, out,
dev_net(in)->ipv4.iptable_mangle);
diff --git a/net/ipv6/netfilter/ip6table_mangle.c b/net/ipv6/netfilter/ip6table_mangle.c
index dc803b7e8e54e..b6216dede52c7 100644
--- a/net/ipv6/netfilter/ip6table_mangle.c
+++ b/net/ipv6/netfilter/ip6table_mangle.c
@@ -81,7 +81,9 @@ ip6table_mangle_hook(unsigned int hook, struct sk_buff *skb,
{
if (hook == NF_INET_LOCAL_OUT)
return ip6t_local_out_hook(hook, skb, out, okfn);
-
+ if (hook == NF_INET_POST_ROUTING)
+ return ip6t_do_table(skb, hook, in, out,
+ dev_net(out)->ipv6.ip6table_mangle);
/* INPUT/FORWARD */
return ip6t_do_table(skb, hook, in, out,
dev_net(in)->ipv6.ip6table_mangle);
--
2.30.2