linux-kernel - [56/91] net: dev_forward_skb should call nf

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Message-Id: <20100824224216.875508796@clark.site>
Date:	Tue, 24 Aug 2010 15:42:18 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Ben Greear <greearb@...delatech.com>,
	"David S. Miller" <davem@...emloft.net>
Subject: [56/91] net: dev_forward_skb should call nf_reset

2.6.34-stable review patch.  If anyone has any objections, please let us know.

------------------


From: Ben Greear <greearb@...delatech.com>

[ Upstream commit c736eefadb71a01a5e61e0de700f28f6952b4444 ]

With conn-track zones and probably with different network
namespaces, the netfilter logic needs to be re-calculated
on packet receive.  If the netfilter logic is not reset,
it will not be recalculated properly.  This patch adds
the nf_reset logic to dev_forward_skb.

Signed-off-by: Ben Greear <greearb@...delatech.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
---
 net/core/dev.c |    1 +
 1 file changed, 1 insertion(+)

--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1464,6 +1464,7 @@ static inline void net_timestamp(struct
 int dev_forward_skb(struct net_device *dev, struct sk_buff *skb)
 {
 	skb_orphan(skb);
+	nf_reset(skb);
 
 	if (!(dev->flags & IFF_UP) ||
 	    (skb->len > (dev->mtu + dev->hard_header_len))) {


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