From: Russell King <rmk+lkml@arm.linux.org.uk>
To: Glen Turner <glen.turner@aarnet.edu.au>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>, linux-kernel@vger.kernel.org
Subject: Re: 8250 serial console fixes -- issue
Date: Fri, 3 Feb 2006 16:02:18 +0000 [thread overview]
Message-ID: <20060203160218.GA27452@flint.arm.linux.org.uk> (raw)
In-Reply-To: <43E36850.5030900@aarnet.edu.au>
On Sat, Feb 04, 2006 at 12:57:28AM +1030, Glen Turner wrote:
>
> Hi Russell,
>
> Thanks for your response.
>
> > A normal user can't produce arbitarily formatted
> > kernel messages
>
> They don't need to provide an entire message, just a
> AT string (a vector which a user could control
> could be a volume label on removable media).
So?
My point stands - if the user can provide an arbitary string to printk,
they can fake any kernel message. That in itself is a security bug.
If there is an instance of that, then that's the real bug which would
need fixing.
Once those bugs have been fixed, your claimed bug is also magically
fixed.
--
Russell King
Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/
maintainer of: 2.6 Serial core
next prev parent reply other threads:[~2006-02-03 16:02 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-02 1:21 8250 serial console fixes -- issue Kumar Gala
2006-02-02 1:47 ` Alan Cox
2006-02-02 5:54 ` Kumar Gala
2006-02-02 8:05 ` Kumar Gala
2006-02-02 17:10 ` Kumar Gala
2006-02-03 1:58 ` Glen Turner
2006-02-03 9:40 ` Russell King
2006-02-03 14:27 ` Glen Turner
2006-02-03 16:02 ` Russell King [this message]
2006-02-03 17:08 ` Glen Turner
2006-02-03 22:23 ` Russell King
2006-02-04 11:15 ` Russell King
2006-02-04 16:18 ` Krzysztof Halasa
2006-02-04 23:16 ` Russell King
2006-02-04 23:54 ` Krzysztof Halasa
2006-02-05 0:00 ` Russell King
2006-02-05 12:57 ` Krzysztof Halasa
2006-02-03 17:46 ` Krzysztof Halasa
2006-02-03 22:13 ` Russell King
2006-02-04 16:08 ` Krzysztof Halasa
2006-02-04 23:20 ` Russell King
2006-02-05 3:12 ` Glen Turner
2006-02-05 21:26 ` Krzysztof Halasa
2006-02-06 9:47 ` Russell King
2006-02-07 3:27 ` Glen Turner
2006-02-03 15:05 ` Kumar Gala
2006-02-06 20:26 ` Pavel Machek
2006-02-06 20:55 ` Russell King
2006-02-07 4:00 ` Glen Turner
2006-02-07 9:18 ` Pavel Machek
2006-02-07 17:43 ` Russell King
2006-02-07 22:23 ` Krzysztof Halasa
2006-02-08 0:59 ` Junio C Hamano
2006-02-08 1:19 ` Lee Revell
-- strict thread matches above, loose matches on Subject: below --
2006-02-03 10:00 linux
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