From: Patrick McHardy <kaber@trash.net>
To: Wayne Schroeder <raz@positivenetworks.net>
Cc: netfilter-devel@lists.netfilter.org
Subject: Re: What basic sanity checking on packet headers is done
Date: Fri, 29 Sep 2006 19:14:27 +0200 [thread overview]
Message-ID: <451D5473.7020908@trash.net> (raw)
In-Reply-To: <451D50F6.5020709@positivenetworks.net>
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.
prev parent reply other threads:[~2006-09-29 17:14 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-29 16:20 What basic sanity checking on packet headers is done Wayne Schroeder
2006-09-29 16:50 ` Patrick McHardy
2006-09-29 16:59 ` Wayne Schroeder
2006-09-29 17:14 ` Patrick McHardy [this message]
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