From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754366AbcCJRc0 (ORCPT ); Thu, 10 Mar 2016 12:32:26 -0500 Received: from mail-pf0-f180.google.com ([209.85.192.180]:34173 "EHLO mail-pf0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752137AbcCJRcR (ORCPT ); Thu, 10 Mar 2016 12:32:17 -0500 Date: Thu, 10 Mar 2016 09:31:44 -0800 From: Kees Cook To: Heiko Carstens Cc: Martin Schwidefsky , Christian Borntraeger , linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org, kernel-hardening@lists.openwall.com Subject: [PATCH] s390: disable postinit-readonly for now Message-ID: <20160310173144.GA25532@www.outflux.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is a temporary fix to let lkdtm run again on s390, though it'll still fail the ro_after_init tests. Until rodata and ro_after_init sections can be split on s390, disable special handling of ro_after_init. Signed-off-by: Kees Cook --- for -next ... --- arch/s390/include/asm/cache.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/s390/include/asm/cache.h b/arch/s390/include/asm/cache.h index 4d7ccac5fd1d..22da3b34c655 100644 --- a/arch/s390/include/asm/cache.h +++ b/arch/s390/include/asm/cache.h @@ -15,4 +15,7 @@ #define __read_mostly __attribute__((__section__(".data..read_mostly"))) +/* Read-only memory is marked before mark_rodata_ro() is called. */ +#define __ro_after_init __read_mostly + #endif -- 2.6.3 -- Kees Cook Chrome OS & Brillo Security