linux-ext4 - Re: [PATCH 3/4] ext2: Avoid printk floods in the face of directory corruption

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Message-ID: <48D15AC6.3060608@redhat.com>
Date:	Wed, 17 Sep 2008 12:30:14 -0700
From:	Eric Sandeen <sandeen@...hat.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	"Theodore Ts'o" <tytso@....EDU>, linux-kernel@...r.kernel.org,
	linux-ext4@...r.kernel.org, eugeneteo@...nel.sg
Subject: Re: [PATCH 3/4] ext2: Avoid printk floods in the face of directory
 corruption

Andrew Morton wrote:
> On Sat, 13 Sep 2008 11:32:50 -0400
> "Theodore Ts'o" <tytso@....EDU> wrote:
> 
>> From: "Theodore Ts'o" <tytso@....EDU>
>> To: akpm@...ux-foundation.org
>> Cc: linux-kernel@...r.kernel.org, "Theodore Ts'o" <tytso@....EDU>, Eric Sandeen <sandeen@...hat.com>, linux-ext4@...r.kernel.org, Eugene Teo <eugeneteo@...nel.sg>
>> Subject: [PATCH 3/4] ext2: Avoid printk floods in the face of directory corruption
>> Date: Sat, 13 Sep 2008 11:32:50 -0400
>> X-Mailer: git-send-email 1.5.6.1.205.ge2c7.dirty
>>
>> Note: some people thinks this represents a security bug, since it
>> might make the system go away while it is printing a large number of
>> console messages, especially if a serial console is involved.  Hence,
>> it has been assigned CVE-2008-3528, but it requires that the attacker
>> either has physical access to your machine to insert a USB disk with a
>> corrupted filesystem image (at which point why not just hit the power
>> button), or is otherwise able to convince the system administrator to
>> mount an arbitrary filesystem image (at which point why not just
>> include a setuid shell or world-writable hard disk device file or some
>> such).  Me, I think they're just being silly.
>>
>> Signed-off-by: Eric Sandeen <sandeen@...hat.com>
>> Signed-off-by: "Theodore Ts'o" <tytso@....edu>
>> Cc: linux-ext4@...r.kernel.org
>> Cc: Eugene Teo <eugeneteo@...nel.sg>
> 
> This patch was purportedly authored by yourself, but I'm going to
> assume that it was authored by Eric.

It was, after some discussion w/ Ted & Andreas.

Also just FWIW I'm also in the "as a security issue this is a bit silly"
camp ;)

Thanks,
-Eric
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