linux-kernel - Re: [PATCH] Make udp_encap_rcv use pskb_may

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Date:	Wed, 22 Nov 2006 20:11:36 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	okir@...e.de
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Make udp_encap_rcv use pskb_may_pull

From: Olaf Kirch <okir@...e.de>
Date: Thu, 23 Nov 2006 01:01:44 +0100

> 
> Make udp_encap_rcv use pskb_may_pull
> 
> IPsec with NAT-T breaks on some notebooks using the latest e1000 chipset,
> when header split is enabled. When receiving sufficiently large packets, the
> driver puts everything up to and including the UDP header into the header
> portion of the skb, and the rest goes into the paged part. udp_encap_rcv
> forgets to use pskb_may_pull, and fails to decapsulate it. Instead, it
> passes it up it to the IKE daemon.
> 
> Signed-off-by: Olaf Kirch <okir@...e.de>
> Signed-off-by: Jean Delvare <jdelvare@...e.de>

Excellent catch, applied, thanks Olaf.
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