Re: [patch] raw: don't allow the creation of a raw device with minor number 0

From: jmoyer
Date: Fri Jan 12 2007 - 17:55:06 EST


==> Regarding Re: [patch] raw: don't allow the creation of a raw device with minor number 0; Jan Engelhardt <jengelh@xxxxxxxxxxxxxxx> adds:

jengelh> On Jan 12 2007 11:32, Jeff Moyer wrote:

>> Date: Fri, 12 Jan 2007 11:32:11 -0500
>> From: Jeff Moyer <jmoyer@xxxxxxxxxx>
>> To: Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>
>> Cc: Steven Fernandez <sfernand@xxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxx>
>> Subject: [patch] raw: don't allow the creation of a raw device with minor
>> number 0
>>
>> Hi,
>>
>> Minor number 0 (under the raw major) is reserved for the rawctl device
>> file, which is used to query, set, and unset raw device bindings.
>> However, the ioctl interface does not protect the user from specifying
>> a raw device with minor number 0:

jengelh> No idea what to say about this... probably:

jengelh> What: RAW driver (CONFIG_RAW_DRIVER)
jengelh> When: December 2005
jengelh> Why: declared obsolete since kernel 2.6.3
jengelh> O_DIRECT can be used instead
jengelh> Who: Adrian Bunk <bunk@xxxxxxxxx>

It's still present, still used, and so would benefit from being fixed, in
my opinion.

Cheers,

Jeff
-
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/