From mboxrd@z Thu Jan  1 00:00:00 1970
From: Patrick McHardy <kaber@trash.net>
Subject: Re: What basic sanity checking on packet headers is done
Date: Fri, 29 Sep 2006 19:14:27 +0200
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To: Wayne Schroeder <raz@positivenetworks.net>
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Wayne Schroeder wrote:
> Sounds like somone as root on the local machine could make packets that
> would pop the kernel if the conditions were right, but everything else,
> specifically remote traffic, will be safe to trust ihl and tot_len on?
> If that's the case, then I'm in the clear.

Right. I didn't find any problematic cases by doing a quick grep,
but I guess its worth going over everything to make sure.
With things like OpenVZ even "root might crash the machine" is
a problem.