From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751480AbeBTVWn (ORCPT ); Tue, 20 Feb 2018 16:22:43 -0500 Received: from mail-io0-f181.google.com ([209.85.223.181]:46191 "EHLO mail-io0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750799AbeBTVWl (ORCPT ); Tue, 20 Feb 2018 16:22:41 -0500 X-Google-Smtp-Source: AH8x224cdmj6nWLua1AZVhEqSEhYnxaNNousl5vgAFWNpSaOzKsO+zDl7ACadp85wLfhO7ubnhz/+nRuGVD5IAdXQYI= MIME-Version: 1.0 References: <20180215182208.35003-1-joe.konno@linux.intel.com> <20180215182208.35003-2-joe.konno@linux.intel.com> <6680a760-eb30-4daf-2dad-a9628f1c15a8@kernel.org> <20180220211849.fqjb6rdmypl6opir@agluck-desk> In-Reply-To: <20180220211849.fqjb6rdmypl6opir@agluck-desk> From: Matthew Garrett Date: Tue, 20 Feb 2018 21:22:29 +0000 Message-ID: Subject: Re: [PATCH 1/2] fs/efivarfs: restrict inode permissions To: tony.luck@intel.com Cc: Linus Torvalds , joe.konno@linux.intel.com, linux-efi , Linux Kernel Mailing List , Ard Biesheuvel , matthew.garrett@nebula.com, Jeremy Kerr , ak@linux.intel.com, pjones@redhat.com, luto@kernel.org, James Bottomley Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Feb 20, 2018 at 1:18 PM Luck, Tony wrote: > Does this rate an exception to the "don't break userspace" for a security issue? To be clear, when you say "security" is this in reference to it being a denial of service, or are you worried about other interactions that may cause wider security issues?