From owner-freebsd-smp Wed Jan 29 20:10:53 2003 Delivered-To: freebsd-smp@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 3FE3337B401 for ; Wed, 29 Jan 2003 20:10:52 -0800 (PST) Received: from eagle.sharma-home.net (cpe-66-1-147-119.ca.sprintbbd.net [66.1.147.119]) by mx1.FreeBSD.org (Postfix) with ESMTP id D252D43F43 for ; Wed, 29 Jan 2003 20:10:51 -0800 (PST) (envelope-from adsharma@eagle.sharma-home.net) Received: by eagle.sharma-home.net (Postfix, from userid 500) id 4CEB180D9; Wed, 29 Jan 2003 20:14:44 -0800 (PST) Date: Wed, 29 Jan 2003 20:14:44 -0800 From: Arun Sharma To: freebsd-smp@freebsd.org Subject: SMP kernel panics on running a user level program Message-ID: <20030130041444.GA785@sharma-home.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4i Sender: owner-freebsd-smp@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org http://www.freebsd.org/cgi/query-pr.cgi?pr=47531 The program is the mutex_d test from the new pthreads implementation. Agreed, the bug is triggered by code that's not in 5.0-RELEASE yet, but this could be used by a malicious user to crash a multi-user system running 5.0-RELEASE to cause denial of service. I have also privately cc'ed the KSE/pthread developers. -Arun To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message