From owner-freebsd-hackers@FreeBSD.ORG Fri Jan 7 23:14:09 2005 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7F9F016A4CE for ; Fri, 7 Jan 2005 23:14:09 +0000 (GMT) Received: from pisces.lunarpages.com (pisces.lunarpages.com [64.235.234.123]) by mx1.FreeBSD.org (Postfix) with ESMTP id 66A0443D1F for ; Fri, 7 Jan 2005 23:14:09 +0000 (GMT) (envelope-from sean@node99.org) Received: from c-24-23-60-128.client.comcast.net ([24.23.60.128] helo=[192.168.1.101]) by pisces.lunarpages.com with esmtp (Exim 4.43) id 1Cn3J2-0004G4-PP for freebsd-hackers@freebsd.org; Fri, 07 Jan 2005 15:14:08 -0800 Message-ID: <41DF17C2.9060801@node99.org> Date: Fri, 07 Jan 2005 15:14:10 -0800 From: Sean Whalen User-Agent: Mozilla Thunderbird 1.0 (Windows/20041206) X-Accept-Language: en-us, en MIME-Version: 1.0 To: freebsd-hackers@freebsd.org Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - pisces.lunarpages.com X-AntiAbuse: Original Domain - freebsd.org X-AntiAbuse: Originator/Caller UID/GID - [0 0] / [47 12] X-AntiAbuse: Sender Address Domain - node99.org X-Source: X-Source-Args: X-Source-Dir: Subject: Potential user/kernel pointer bugs in FreeBSD 5.3 X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 07 Jan 2005 23:14:09 -0000 Hello, We recently did work with the Cqual type inference tool to identify potential user/kernel pointer bugs in FreeBSD 5.3. Our paper is available here: http://www.node99.org/projects/bsduk/ We identified 5 potential bugs which we are looking to confirm with the community. Page 10 contains an example of one such candidate. More true positives may be identified by using a machine with 10 or more gigs of RAM for inter-file analysis of the entire kernel. If interested, please email me. Best, -Sean