From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932144Ab3KFVOv (ORCPT ); Wed, 6 Nov 2013 16:14:51 -0500 Received: from smtp.outflux.net ([198.145.64.163]:42401 "EHLO smtp.outflux.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756020Ab3KFVOt (ORCPT ); Wed, 6 Nov 2013 16:14:49 -0500 Date: Wed, 6 Nov 2013 13:13:52 -0800 From: Kees Cook To: linux-kernel@vger.kernel.org Cc: Russell King , linux-arm-kernel@lists.infradead.org Subject: [PATCH] ARM: make OABI default to off Message-ID: <20131106211352.GA24006@www.outflux.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-HELO: www.outflux.net Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Given recent discussions about the lack of OABI in the wild, switch CONFIG_OABI_COMPAT to off-by-default to encourage more system builders to avoid it. Signed-off-by: Kees Cook --- arch/arm/Kconfig | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 1ad6fb6c094d..4ace7f33e8a1 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1728,7 +1728,7 @@ config AEABI config OABI_COMPAT bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)" depends on AEABI && !THUMB2_KERNEL - default y + default n help This option preserves the old syscall interface along with the new (ARM EABI) one. It also provides a compatibility layer to @@ -1740,7 +1740,7 @@ config OABI_COMPAT can say N here. If this option is not selected and you attempt to execute a legacy ABI binary then the result will be UNPREDICTABLE (in fact it can be predicted that it won't work - at all). If in doubt say Y. + at all). If in doubt say N. config ARCH_HAS_HOLES_MEMORYMODEL bool -- 1.7.9.5 -- Kees Cook Chrome OS Security