Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262020AbUFKGRX (ORCPT ); Fri, 11 Jun 2004 02:17:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261913AbUFKGRW (ORCPT ); Fri, 11 Jun 2004 02:17:22 -0400 Received: from [213.239.201.226] ([213.239.201.226]:25734 "EHLO mail.shadowconnect.com") by vger.kernel.org with ESMTP id S262020AbUFKGRK (ORCPT ); Fri, 11 Jun 2004 02:17:10 -0400 Message-ID: <40C95022.1060104@shadowconnect.com> Date: Fri, 11 Jun 2004 08:24:34 +0200 From: Markus Lidel User-Agent: Mozilla Thunderbird 0.6 (Windows/20040502) X-Accept-Language: en-us, en MIME-Version: 1.0 To: "Robert T. Johnson" CC: Linux Kernel Subject: Re: PATCH: 2.6.7-rc3 drivers/message/i2o/i2o_config.c: user/kernel pointer bugs References: <1086822062.32052.129.camel@dooby.cs.berkeley.edu> In-Reply-To: <1086822062.32052.129.camel@dooby.cs.berkeley.edu> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 994 Lines: 41 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 D-86381 Krumbach 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 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/