From: Markus Lidel <Markus.Lidel@shadowconnect.com>
To: "Robert T. Johnson" <rtjohnso@eecs.berkeley.edu>
Cc: Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: PATCH: 2.6.7-rc3 drivers/message/i2o/i2o_config.c: user/kernel pointer bugs
Date: Fri, 11 Jun 2004 08:24:34 +0200 [thread overview]
Message-ID: <40C95022.1060104@shadowconnect.com> (raw)
In-Reply-To: <1086822062.32052.129.camel@dooby.cs.berkeley.edu>
Hello,
Robert T. Johnson wrote:
> Since arg is a user pointer, accessing values like cmd->iop requires an
> unsafe user pointer dereference.
Yes, you're right...
> QUESTION: Does ioctl_passthru mean arg is a kernel pointer? If so, then
> disregard this bug report.
No, arg is a user pointer...
> Let me know if you have any questions, and thanks for looking into this.
No, thank you for taking your time, and also making the patch :-)
Best regards,
Markus Lidel
------------------------------------------
Markus Lidel (Senior IT Consultant)
Shadow Connect GmbH
Carl-Reisch-Weg 12
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Germany
Phone: +49 82 82/99 51-0
Fax: +49 82 82/99 51-11
E-Mail: Markus.Lidel@shadowconnect.com
URL: http://www.shadowconnect.com
prev parent reply other threads:[~2004-06-11 6:17 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-09 23:01 PATCH: 2.6.7-rc3 drivers/message/i2o/i2o_config.c: user/kernel pointer bugs Robert T. Johnson
2004-06-10 1:37 ` viro
2004-06-10 4:03 ` Robert T. Johnson
2004-06-11 6:24 ` Markus Lidel [this message]
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