netdev - Re: BUG in skb_pull with e1000e, PPTP, and L2TP

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Message-ID: <20111017152531.144b16a1@nehalam.linuxnetplumber.net>
Date:	Mon, 17 Oct 2011 15:25:31 -0700
From:	Stephen Hemminger <shemminger@...tta.com>
To:	Bradley Peterson <despite@...il.com>
Cc:	netdev@...r.kernel.org, Jeff Kirsher <jeffrey.t.kirsher@...el.com>,
	Jesse Brandeburg <jesse.brandeburg@...el.com>,
	Bruce Allan <bruce.w.allan@...el.com>,
	Carolyn Wyborny <carolyn.wyborny@...el.com>,
	Don Skidmore <donald.c.skidmore@...el.com>,
	Greg Rose <gregory.v.rose@...el.com>,
	PJ Waskiewicz <peter.p.waskiewicz.jr@...el.com>,
	Alex Duyck <alexander.h.duyck@...el.com>,
	John Ronciak <john.ronciak@...el.com>,
	e1000-devel@...ts.sourceforge.net
Subject: Re: BUG in skb_pull with e1000e, PPTP, and L2TP

On Mon, 17 Oct 2011 17:19:53 -0500
Bradley Peterson <despite@...il.com> wrote:

>  using 3rd
> party pptp and l2tp modules. 

More than likely your 3rd party modules are buggy and
can't handle all the possible types of skb layout. 
I have seen out of tree code that can't handle non-linear
skb's. You need to take it up with the those developer.
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