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From: Julien Oster <frodoid@frodoid.org>
To: Michael Buesch <fsdeveloper@yahoo.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: kernel ring buffer accessible by users
Date: Tue, 22 Apr 2003 18:54:34 +0200	[thread overview]
Message-ID: <20030422165434.GA363@ggom.de> (raw)
In-Reply-To: <200304221844.05754.fsdeveloper@yahoo.de>

On Tue, Apr 22, 2003 at 06:44:05PM +0200, Michael Buesch wrote:

Hello Michael,

> > it's been quite a while that I noticed that any ordinary user, not
> > just root, can type "dmesg" to see the kernel ring buffer.

> just make
> $ chmod 700 /bin/dmesg

Thanks for the answer, but that doesn't help that much, since any user
could copy dmesg from his system or simply code a dmesg replacement
within a few minutes.

Regards,
Julien

  parent reply	other threads:[~2003-04-22 16:43 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-04-22 16:21 kernel ring buffer accessible by users Julien Oster
2003-04-22 16:44 ` Michael Buesch
2003-04-22 16:52   ` Grzegorz Jaskiewicz
2003-04-22 16:54   ` Jörn Engel
2003-04-22 16:54   ` Julien Oster [this message]
2003-04-22 17:54     ` Richard B. Johnson
2003-04-22 17:17 ` Robert Love
2003-04-23 15:56   ` Werner Almesberger
2003-04-23 15:59     ` Robert Love
2003-04-23 16:23       ` Werner Almesberger
2003-04-24  0:30         ` David Wagner
2003-04-24 14:02       ` Grzegorz Jaskiewicz
2003-04-23 16:05     ` Julien Oster
2003-04-23 16:45       ` Werner Almesberger
2003-04-23 16:59         ` Frank v Waveren
2003-04-24  0:31       ` David Wagner
2003-04-24 13:10         ` Stephan von Krawczynski
2003-04-22 19:53 ` Jason Cook
2003-04-23  9:33 ` Olaf Hering

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