From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A4181C43381 for ; Mon, 18 Feb 2019 14:14:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6B7E42177E for ; Mon, 18 Feb 2019 14:14:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1550499282; bh=KezdxjGsUNhlsOwPug+ocWNBh11zkXeY/NS5aiqGVds=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=dhTdFHT452KMAuYZLl6IXyg6uTgYtdoRjiJSXkMPhen9liLjkgOLEsXL+PgOpQDZ8 ubVE9jLFyet0iQRSmBGQx/VtsSXhg/4VT0mNodEb4tgwTBSfOEXRtUjSVkc01p/LjJ Nlb5VvU+OLBQp0TIg1iePgSqudkc7nsNE58f0pd0= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391985AbfBROOl (ORCPT ); Mon, 18 Feb 2019 09:14:41 -0500 Received: from mail.kernel.org ([198.145.29.99]:57688 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2391525AbfBROND (ORCPT ); Mon, 18 Feb 2019 09:13:03 -0500 Received: from localhost (5356596B.cm-6-7b.dynamic.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id E40F4217D7; Mon, 18 Feb 2019 14:13:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1550499182; bh=KezdxjGsUNhlsOwPug+ocWNBh11zkXeY/NS5aiqGVds=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fjrjEOnb0y8HIplTfegJ7wcdQUkRYXgy4IlJoFsFGPZYLC1pMIKpa00knPCNhZrwH DItcfzNisj4qoI+GTMAkLkHEL0jtY8u1I3ALAwAbFpXe8MaVkn9X8sZ1OJmBVkCMfC Ux1ewbx2COJGgLIvOm7FWWqgO/ZXHen87msDETW0= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dan Carpenter , Sudeep Holla Subject: [PATCH 3.18 078/108] misc: vexpress: Off by one in vexpress_syscfg_exec() Date: Mon, 18 Feb 2019 14:44:14 +0100 Message-Id: <20190218133523.140500151@linuxfoundation.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190218133519.525507231@linuxfoundation.org> References: <20190218133519.525507231@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Dan Carpenter commit f8a70d8b889f180e6860cb1f85fed43d37844c5a upstream. The > comparison should be >= to prevent reading beyond the end of the func->template[] array. (The func->template array is allocated in vexpress_syscfg_regmap_init() and it has func->num_templates elements.) Fixes: 974cc7b93441 ("mfd: vexpress: Define the device as MFD cells") Signed-off-by: Dan Carpenter Acked-by: Sudeep Holla Signed-off-by: Greg Kroah-Hartman --- drivers/misc/vexpress-syscfg.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/misc/vexpress-syscfg.c +++ b/drivers/misc/vexpress-syscfg.c @@ -61,7 +61,7 @@ static int vexpress_syscfg_exec(struct v int tries; long timeout; - if (WARN_ON(index > func->num_templates)) + if (WARN_ON(index >= func->num_templates)) return -EINVAL; command = readl(syscfg->base + SYS_CFGCTRL);