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=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED 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 6ED8FC00449 for ; Mon, 8 Oct 2018 05:57:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3CE4D2085B for ; Mon, 8 Oct 2018 05:57:29 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3CE4D2085B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=davemloft.net Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726893AbeJHNH1 (ORCPT ); Mon, 8 Oct 2018 09:07:27 -0400 Received: from shards.monkeyblade.net ([23.128.96.9]:48268 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725842AbeJHNH1 (ORCPT ); Mon, 8 Oct 2018 09:07:27 -0400 Received: from localhost (c-67-183-145-105.hsd1.wa.comcast.net [67.183.145.105]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: davem-davemloft) by shards.monkeyblade.net (Postfix) with ESMTPSA id 510EF142D15EA; Sun, 7 Oct 2018 22:57:27 -0700 (PDT) Date: Sun, 07 Oct 2018 22:57:26 -0700 (PDT) Message-Id: <20181007.225726.457975328875903193.davem@davemloft.net> To: keescook@chromium.org Cc: allen.pais@oracle.com, pombredanne@nexb.com, sparclinux@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] sparc64: viohs: Remove VLA usage From: David Miller In-Reply-To: <20180905220351.GA48213@beast> References: <20180905220351.GA48213@beast> X-Mailer: Mew version 6.7 on Emacs 26 / Mule 6.0 (HANACHIRUSATO) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Sun, 07 Oct 2018 22:57:27 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Kees Cook Date: Wed, 5 Sep 2018 15:03:51 -0700 > In the quest to remove all stack VLA usage from the kernel[1], this > allocates a fixed size array for the maximum number of cookies and > adds a runtime sanity check. > > [1] https://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1 > RqZWA@mail.gmail.com > > Signed-off-by: Kees Cook Applied.