From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757181Ab1FFIf5 (ORCPT ); Mon, 6 Jun 2011 04:35:57 -0400 Received: from hera.kernel.org ([140.211.167.34]:40190 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756980Ab1FFIfv (ORCPT ); Mon, 6 Jun 2011 04:35:51 -0400 Date: Mon, 6 Jun 2011 08:34:54 GMT From: tip-bot for Andy Lutomirski Message-ID: Cc: mingo@redhat.com, brgerst@gmail.com, torvalds@linux-foundation.org, mikpe@it.uu.se, richard.weinberger@gmail.com, jj@chaosbits.net, JBeulich@novell.com, tglx@linutronix.de, Louis.Rilling@kerlabs.com, hpa@zytor.com, linux-kernel@vger.kernel.org, luto@mit.edu, andi@firstfloor.org, bp@alien8.de, arjan@infradead.org, mingo@elte.hu Reply-To: mingo@redhat.com, torvalds@linux-foundation.org, brgerst@gmail.com, mikpe@it.uu.se, richard.weinberger@gmail.com, jj@chaosbits.net, JBeulich@novell.com, tglx@linutronix.de, Louis.Rilling@kerlabs.com, hpa@zytor.com, linux-kernel@vger.kernel.org, luto@mit.edu, andi@firstfloor.org, bp@alien8.de, arjan@infradead.org, mingo@elte.hu In-Reply-To: <4de62bfbf6974f14d0e9d9ae37cc137dbc926a30.1307292171.git.luto@mit.edu> References: <4de62bfbf6974f14d0e9d9ae37cc137dbc926a30.1307292171.git.luto@mit.edu> To: linux-tip-commits@vger.kernel.org Subject: [tip:x86/vdso] x86-64: Add CONFIG_UNSAFE_VSYSCALLS to feature-removal-schedule Git-Commit-ID: 38172403a97828ae2ea12281b19528582d6625d4 X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.3 (hera.kernel.org [127.0.0.1]); Mon, 06 Jun 2011 08:34:55 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 38172403a97828ae2ea12281b19528582d6625d4 Gitweb: http://git.kernel.org/tip/38172403a97828ae2ea12281b19528582d6625d4 Author: Andy Lutomirski AuthorDate: Sun, 5 Jun 2011 13:50:25 -0400 Committer: Ingo Molnar CommitDate: Mon, 6 Jun 2011 09:43:15 +0200 x86-64: Add CONFIG_UNSAFE_VSYSCALLS to feature-removal-schedule CONFIG_UNSAFE_VSYSCALLS was added in the previous patch as a temporary hack to avoid penalizing users who don't build glibc from git. Signed-off-by: Andy Lutomirski Cc: Jesper Juhl Cc: Borislav Petkov Cc: Linus Torvalds Cc: Arjan van de Ven Cc: Jan Beulich Cc: richard -rw- weinberger Cc: Mikael Pettersson Cc: Andi Kleen Cc: Brian Gerst Cc: Louis Rilling Cc: Valdis.Kletnieks@vt.edu Cc: pageexec@freemail.hu Link: http://lkml.kernel.org/r/4de62bfbf6974f14d0e9d9ae37cc137dbc926a30.1307292171.git.luto@mit.edu Signed-off-by: Ingo Molnar --- Documentation/feature-removal-schedule.txt | 9 +++++++++ 1 files changed, 9 insertions(+), 0 deletions(-) diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index 1a9446b..94b4470 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -600,3 +600,12 @@ Why: Superseded by the UVCIOC_CTRL_QUERY ioctl. Who: Laurent Pinchart ---------------------------- + +What: CONFIG_UNSAFE_VSYSCALLS (x86_64) +When: When glibc 2.14 or newer is ubitquitous. Perhaps mid-2012. +Why: Having user-executable code at a fixed address is a security problem. + Turning off CONFIG_UNSAFE_VSYSCALLS mostly removes the risk but will + make the time() function slower on glibc versions 2.13 and below. +Who: Andy Lutomirski + +----------------------------