From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261210AbVAGB2J (ORCPT ); Thu, 6 Jan 2005 20:28:09 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261263AbVAGBIg (ORCPT ); Thu, 6 Jan 2005 20:08:36 -0500 Received: from mail.dif.dk ([193.138.115.101]:57023 "EHLO mail.dif.dk") by vger.kernel.org with ESMTP id S261237AbVAGBHL (ORCPT ); Thu, 6 Jan 2005 20:07:11 -0500 Date: Fri, 7 Jan 2005 02:18:34 +0100 (CET) From: Jesper Juhl To: linux-kernel Cc: Andrew Morton Subject: [PATCH][2/4] let's kill verify_area - convert kernel/signal.c to access_ok() Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Here's a patch to convert verify_area to access_ok in kernel/signal.c Signed-off-by: Jesper Juhl diff -up linux-2.6.10-bk9-orig/kernel/signal.c linux-2.6.10-bk9/kernel/signal.c --- linux-2.6.10-bk9-orig/kernel/signal.c 2005-01-06 22:19:19.000000000 +0100 +++ linux-2.6.10-bk9/kernel/signal.c 2005-01-07 02:02:55.000000000 +0100 @@ -2435,7 +2435,7 @@ do_sigaltstack (const stack_t __user *us int ss_flags; error = -EFAULT; - if (verify_area(VERIFY_READ, uss, sizeof(*uss)) + if (!access_ok(VERIFY_READ, uss, sizeof(*uss)) || __get_user(ss_sp, &uss->ss_sp) || __get_user(ss_flags, &uss->ss_flags) || __get_user(ss_size, &uss->ss_size))