From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 5 Dec 2002 06:20:11 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 5 Dec 2002 06:20:11 -0500 Received: from kiruna.synopsys.com ([204.176.20.18]:61941 "HELO kiruna.synopsys.com") by vger.kernel.org with SMTP id ; Thu, 5 Dec 2002 06:20:10 -0500 Date: Thu, 5 Dec 2002 12:24:21 +0100 From: Alex Riesen To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Sean Neakums Subject: Re: world read permissions on /proc/irq/prof_cpu_mask and ...smp_affinity Message-ID: <20021205112421.GG26745@riesen-pc.gr05.synopsys.com> Reply-To: Alexander.Riesen@synopsys.com References: <20021203114938.GD26745@riesen-pc.gr05.synopsys.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4i Organization: Synopsys, Inc. Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Dec 04, 2002 at 10:37:01AM -0500, Ingo Molnar wrote: > > Is there any reason to set the permissions to 0600? > > It makes the admin to login as root just to look on the > > current system state. > > Is there something against 0644? > > i've got nothing against 0644, 0600 was just the default paranoid value. > (reading it could in theory mean an IO-APIC read.) > Just found a patch from Olaf Dietsche (2.5.40: fix chmod/chown on procfs). Quote: This patch allows to change uid, gid and mode of files and directories located in procfs. The patch was accepted 2.5. This perfectly solves the problem, and in very clean way, i think. -alex