linux-kernel - Re: Registration Weakness in Linux Kernel's Binary formats

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Message-Id: <200610032228.k93MSOhn015311@turing-police.cc.vt.edu>
Date:	Tue, 03 Oct 2006 18:28:24 -0400
From:	Valdis.Kletnieks@...edu
To:	Stephen Hemminger <shemminger@...l.org>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Registration Weakness in Linux Kernel's Binary formats

On Tue, 03 Oct 2006 14:59:54 PDT, Stephen Hemminger said:

> I looked at it, basically his argument which is all flowered up in pretty
> pictures and security vulnerability language is:
> 
>    If root loads a buggy module then the module can be used to compromise
>    the system.
> 
> Well isn't that surprising.

Big yawner.  Now if the claim had been that a properly buggy module, inserted
under a certain set of circumstances, got onto the binfmt list *even when the
process loading it wasn't root*, now *that* would be an exploit....

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