Re: [PATCH 3/4] ext2: Avoid printk floods in the face of directorycorruption

From: Eric Sandeen
Date: Wed Sep 17 2008 - 15:33:36 EST


Andrew Morton wrote:
> On Sat, 13 Sep 2008 11:32:50 -0400
> "Theodore Ts'o" <tytso@xxxxxxx> wrote:
>
>> From: "Theodore Ts'o" <tytso@xxxxxxx>
>> To: akpm@xxxxxxxxxxxxxxxxxxxx
>> Cc: linux-kernel@xxxxxxxxxxxxxxx, "Theodore Ts'o" <tytso@xxxxxxx>, Eric Sandeen <sandeen@xxxxxxxxxx>, linux-ext4@xxxxxxxxxxxxxxx, Eugene Teo <eugeneteo@xxxxxxxxx>
>> 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@xxxxxxxxxx>
>> Signed-off-by: "Theodore Ts'o" <tytso@xxxxxxx>
>> Cc: linux-ext4@xxxxxxxxxxxxxxx
>> Cc: Eugene Teo <eugeneteo@xxxxxxxxx>
>
> 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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/