From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.5 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,T_DKIMWL_WL_HIGH,URIBL_BLOCKED,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1206BC04AB5 for ; Mon, 3 Jun 2019 17:37:27 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CDE9422297 for ; Mon, 3 Jun 2019 17:37:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="uEBEnbCv" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CDE9422297 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=YD8j8N4oPQdgLxikjpIcWpBTzxRhSghQaEsOxPwTvck=; b=uEBEnbCv/Vh5Oh Lvrm2RkWrO9dt3vCDIjm0/tqvP0qhVM5eA+S7/8Un1KaoJyjJctTKEnPj6Lcvh9/QIJffp9cQ0gfh Opu3UH9j/+m8F6okRw99YAcGH+Im4UsKpZCn0zg6JnjBygpHHdPO5e9wKpiEe2bOpZjThQ+ef6s8A b/KGlWHbfkMo17ut1JzhDDLZQwUYUIkbLSxc/3Qf87eLtCQyX7e/yGoyqHnIWYgezZ66RG+rr6dst IYIGKe5/bHDrWoKUBvfsqrRyZOg56k4QZsdvAnyMBDtIXhhG4Wtt9TnTHd65hztVn1D8qkiabC2pW kkSlj9F7oQhWkKKMJOXw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hXqtd-0006EU-SM; Mon, 03 Jun 2019 17:37:21 +0000 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70] helo=foss.arm.com) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hXqta-0006DQ-MP; Mon, 03 Jun 2019 17:37:19 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 0F68280D; Mon, 3 Jun 2019 10:37:18 -0700 (PDT) Received: from arrakis.emea.arm.com (arrakis.cambridge.arm.com [10.1.196.78]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id EC8823F5AF; Mon, 3 Jun 2019 10:37:14 -0700 (PDT) Date: Mon, 3 Jun 2019 18:37:12 +0100 From: Catalin Marinas To: Alexandre Ghiti Subject: Re: [PATCH v4 03/14] arm64: Consider stack randomization for mmap base only when necessary Message-ID: <20190603173712.GJ63283@arrakis.emea.arm.com> References: <20190526134746.9315-1-alex@ghiti.fr> <20190526134746.9315-4-alex@ghiti.fr> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20190526134746.9315-4-alex@ghiti.fr> User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190603_103718_738637_CD9A7493 X-CRM114-Status: GOOD ( 10.88 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Albert Ou , Kees Cook , James Hogan , Palmer Dabbelt , Will Deacon , Russell King , Ralf Baechle , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Paul Burton , linux-riscv@lists.infradead.org, Alexander Viro , linux-fsdevel@vger.kernel.org, Andrew Morton , linux-mips@vger.kernel.org, Christoph Hellwig , linux-arm-kernel@lists.infradead.org, Luis Chamberlain Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Sun, May 26, 2019 at 09:47:35AM -0400, Alexandre Ghiti wrote: > Do not offset mmap base address because of stack randomization if > current task does not want randomization. > Note that x86 already implements this behaviour. > > Signed-off-by: Alexandre Ghiti > Acked-by: Kees Cook > Reviewed-by: Christoph Hellwig Acked-by: Catalin Marinas _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel