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From: Julien Oster <frodo@dereference.de>
To: linux-kernel@vger.kernel.org
Subject: kernel ring buffer accessible by users
Date: Tue, 22 Apr 2003 18:21:16 +0200	[thread overview]
Message-ID: <frodoid.frodo.87wuhmh5ab.fsf@usenet.frodoid.org> (raw)


Hello,

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.

My question now is: Why? I often saw things in the kernel ring buffer
which I don't want every user to know (e.g. some telephone numbers with
ISDN).

Are there any problems in just letting root get the contents of the
kernel ring buffer?

Julien

             reply	other threads:[~2003-04-22 16:09 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-04-22 16:21 Julien Oster [this message]
2003-04-22 16:44 ` kernel ring buffer accessible by users Michael Buesch
2003-04-22 16:52   ` Grzegorz Jaskiewicz
2003-04-22 16:54   ` Jörn Engel
2003-04-22 16:54   ` Julien Oster
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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