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[Fwd: Re: mremap bug and 2.4?]

To: linux-xfs@xxxxxxxxxxx
Subject: [Fwd: Re: mremap bug and 2.4?]
From: "Jeffrey E. Hundstad" <jeffrey.hundstad@xxxxxxxx>
Date: Mon, 05 Jan 2004 11:13:35 -0600
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FYI: in case you didn't notice it on Linux-kernel.

-------- Original Message --------
Subject:        Re: mremap bug and 2.4?
Date:   Mon, 5 Jan 2004 13:26:23 -0200 (BRST)
From:   Marcelo Tosatti <marcelo.tosatti@xxxxxxxxxxxx>
To:     Robert L. Harris <Robert.L.Harris@xxxxxxxx>
CC:     Linux-Kernel <linux-kernel@xxxxxxxxxxxxxxx>
References:     <20040105145421.GC2247@xxxxxxxx>



On Mon, 5 Jan 2004, Robert L. Harris wrote:



Just read this on full disclosure:

http://isec.pl/vulnerabilities/isec-0013-mremap.txt

Is it valid?  No working proof of concept code has been posted so I can't
test my systems.  The article only lists 2.4 and 2.6.  Is this
2.4.16-current, etc?  Anyone have any details about versions that are
safe so I/We can determine if I need to roll a new production kernel out
again?

It is possible that the problem is exploitable. There is no known public
exploit yet, however.

2.4.24 includes a fix for this (mm/mremap.c diff)
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