From: Jeff Garzik <jgarzik@pobox.com>
To: Linus Torvalds <torvalds@osdl.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: SG_IO and security
Date: Thu, 12 Aug 2004 13:01:48 -0400 [thread overview]
Message-ID: <411BA27C.7030801@pobox.com> (raw)
In-Reply-To: <411BA0F4.9060201@pobox.com>
Jeff Garzik wrote:
> Linus Torvalds wrote:
>
>>
>> On Thu, 12 Aug 2004, Linus Torvalds wrote:
>>
>>> Hmm.. This still allows the old "junk" commands
>>> (SCSI_IOCTL_SEND_COMMAND).
>>
>>
>>
>> Btw, I think the _right_ thing to check is the write access of the
>> file descriptor. If you have write access to a block device, you can
>> delete the data, so you might as well be able to do the raw commands.
>> And that would allow things like "disk" groups etc to work and burn CD's.
>
>
>
> Define raw commands. I certainly don't want non-root users to be able
> to issue FORMAT UNIT on my hard drive.
oh, to the block device, not the file.
nevermind.
Jeff
next prev parent reply other threads:[~2004-08-12 17:02 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-12 12:17 SG_IO and security Alan Cox
2004-08-12 16:39 ` Linus Torvalds
2004-08-12 16:45 ` Linus Torvalds
2004-08-12 16:55 ` Jeff Garzik
2004-08-12 17:01 ` Jeff Garzik [this message]
2004-08-12 17:02 ` Linus Torvalds
2004-08-12 17:13 ` Jeff Garzik
2004-08-12 19:22 ` Kai Makisara
2004-08-13 19:25 ` Peter Jones
2004-08-13 19:37 ` Jeff Garzik
2004-08-14 7:22 ` Kai Makisara
2004-08-14 15:33 ` Alan Cox
2004-08-16 22:24 ` Bill Davidsen
2004-08-16 22:00 ` Bill Davidsen
2004-08-12 17:06 ` Arjan van de Ven
2004-08-12 17:35 ` Jens Axboe
2004-08-12 18:29 ` Jens Axboe
2004-08-12 18:37 ` Jeff Garzik
2004-08-12 18:43 ` Jens Axboe
2004-08-12 18:45 ` Christoph Hellwig
2004-08-12 18:48 ` Jens Axboe
2004-08-12 20:19 ` Alan Cox
2004-08-12 20:16 ` Alan Cox
2004-08-12 22:51 ` Eric Lammerts
2004-08-13 0:09 ` Linus Torvalds
2004-08-13 6:59 ` Jens Axboe
2004-08-13 7:22 ` viro
2004-08-13 7:43 ` Arjan van de Ven
2004-08-13 7:46 ` Jens Axboe
2004-08-13 19:18 ` Jeff Garzik
2004-08-13 19:37 ` Linus Torvalds
2004-08-13 19:44 ` Jeff Garzik
2004-08-13 19:49 ` Florian Weimer
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