From owner-freebsd-arch@FreeBSD.ORG Thu May 28 00:31:34 2015 Return-Path: Delivered-To: freebsd-arch@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 2ABA9E6F; Thu, 28 May 2015 00:31:34 +0000 (UTC) (envelope-from carpeddiem@gmail.com) Received: from mail-ig0-x22e.google.com (mail-ig0-x22e.google.com [IPv6:2607:f8b0:4001:c05::22e]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id E8ACFE05; Thu, 28 May 2015 00:31:33 +0000 (UTC) (envelope-from carpeddiem@gmail.com) Received: by igbhj9 with SMTP id hj9so101559703igb.1; Wed, 27 May 2015 17:31:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:from:date:message-id :subject:to:cc:content-type; bh=BFSaIy7BWJr+Xde+wIiXy1llICsIUPu7CiOPkNSdQBI=; b=oRuQ14hTg+qmTtfLG7kpOctTQYNNqQhNi25i/Dyxi4lMK1unMdsyM2H9/FzLdLoHJf j5t412sy3G8Vyw7XqoeWiw6D3M3A9qrzvdBeJbFTLxj2W+IMr/7+tS4mO2lRdgMPAuvw me/ISsWitaFnZo3iI1ec5IJu68TY9EtuczDc0JCtlpKTXRUqwr900Xwl+jpDAjCrgGIb HpEbrDDno580DYxGVBA3fgbjvt32NRqLs79/jaE/RSzsD/hl5Tg8bkQF5dUgsaCDUAw2 Z082EnuoF9fNpZxhgezbQTUbnVjE0upGryNwGWgOWCC8pDbNYYNT8wbKcoU/UsYS0iAs GMCw== X-Received: by 10.42.176.8 with SMTP id bc8mr6201851icb.22.1432773093094; Wed, 27 May 2015 17:31:33 -0700 (PDT) MIME-Version: 1.0 Sender: carpeddiem@gmail.com Received: by 10.107.48.3 with HTTP; Wed, 27 May 2015 17:31:12 -0700 (PDT) In-Reply-To: <2503264.OAH5YVL1Fd@shawnwebb-laptop> References: <555CADB6.202@FreeBSD.org> <1432743944.20023.12.camel@hardenedbsd.org> <2503264.OAH5YVL1Fd@shawnwebb-laptop> From: Ed Maste Date: Wed, 27 May 2015 20:31:12 -0400 X-Google-Sender-Auth: BjdDeovHteQLbObtnqU-ooc1mgk Message-ID: Subject: Re: ASLR work into -HEAD ? To: Shawn Webb Cc: Warner Losh , Pedro Giffuni , Alfred Perlstein , "freebsd-arch@freebsd.org" Content-Type: text/plain; charset=UTF-8 X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 28 May 2015 00:31:34 -0000 On 27 May 2015 at 20:00, Shawn Webb wrote: > > At the FreeBSD Developer Summit at EuroBSDCon 2014, Ed Maste said on behalf of > the FreeBSD Foundation that he (and by extension, the Foundation) would block > the ASLR patch from being merged into HEAD if we didn't provide a mechanism > for disabling ASLR as a non-root user on a per-binary basis. I said no such thing. I did have reservations about various aspects of the ASLR work and also passed on concerns of others. I certainly did not say that I (or the Foundation) would block the work unless certain conditions were met. The Foundation doesn't have authority to block a change, anyway. I did say that we'd need the ability to disable ASLR on a per-process basis, with my specific interest being use by the debugger.