netdev - Re: DoS by cat /proc/net/ip

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Message-Id: <20080308142254.M64724@visp.net.lb>
Date:	Sat, 8 Mar 2008 16:24:34 +0200
From:	"Denys Fedoryshchenko" <denys@...p.net.lb>
To:	Jarek Poplawski <jarkao2@...il.com>
Cc:	Krzysztof Oledzki <olel@....pl>, netdev@...r.kernel.org
Subject: Re: DoS by cat /proc/net/ip_conntrack ?

For me personally, i think must be as a rule, that _READING_ must not hang 
whole system by consuming all resources (router becoming completely 
unreachable and blocking all traffic passing thru it). It can hang console, 
current program, but not crash router.

On Sat, 08 Mar 2008 13:33:10 +0100, Jarek Poplawski wrote
> Jarek Poplawski wrote, On 03/08/2008 01:26 PM:
> ....
> 
> > I think, Denys is concerned about some other, maybe too curious users
> > if they can read this?
> 
> OOPS! I see it's root only...
> 
> Then only their curiosity could be dangerous here!
> 
> Sorry,
> Jarek P.
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--
Denys Fedoryshchenko
Technical Manager
Virtual ISP S.A.L.

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