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Re: extended attributes security problem

To: linux-xfs@xxxxxxxxxxx
Subject: Re: extended attributes security problem
From: Ethan Benson <erbenson@xxxxxxxxxx>
Date: Sat, 6 Apr 2002 22:09:25 -0900
In-reply-to: <20020407063514.E4970125E6@xxxxxxxxxxxxxxxxxxxxxxxxxxx>; from keith_m@xxxxxxxxxxxxxxxxxxx on Sun, Apr 07, 2002 at 07:35:14AM +0100
References: <Pine.LNX.4.33.0204061825280.20577-100000@xxxxxxxxxxxxxxxxxxxxxxxx> <20020407063514.E4970125E6@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
Sender: owner-linux-xfs@xxxxxxxxxxx
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On Sun, Apr 07, 2002 at 07:35:14AM +0100, Keith Matthews wrote:
> On Sat, 6 Apr 2002 18:26:02 -0600 (CST) Eric Sandeen <Eric Sandeen 
> <sandeen@xxxxxxx>> wrote:
> 
> > On Sat, 6 Apr 2002, Eric Sandeen wrote:
> 
> > > I made a tiny xfs filesystem to test this, then made a 0-byte file and
> > > added 64K attributes until I ran out of space:
> 
> > And then I read Ethan's mail from earlier today... whoops.  :)
> 
> Sorry if this is a red herring, as it's an area I have not managed to
> study properly.

it is a red herring.

> A thought - what happens to the space taken up by EAs against special
> device files on shutdown/reboot if devfs is in use ?

devfs does not support extended attributes.  but this is irrelevant,
using devfs is not a solution but a workaround.  

and i for one will never ever use devfs, but again its irrelevant, the
real problem needs to be fixed not ignored and kludged around.

-- 
Ethan Benson
http://www.alaska.net/~erbenson/

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