From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753169AbbK2WCo (ORCPT ); Sun, 29 Nov 2015 17:02:44 -0500 Received: from wtarreau.pck.nerim.net ([62.212.114.60]:56581 "EHLO 1wt.eu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753519AbbK2WCL (ORCPT ); Sun, 29 Nov 2015 17:02:11 -0500 Message-Id: <20151129214704.289904990@1wt.eu> User-Agent: quilt/0.63-1 Date: Sun, 29 Nov 2015 22:47:35 +0100 From: Willy Tarreau To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Dan Carpenter , Tejun Heo , Greg Kroah-Hartman , Ben Hutchings , Willy Tarreau Subject: [PATCH 2.6.32 33/38] [PATCH 33/38] devres: fix a for loop bounds check MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 In-Reply-To: <8acf8256ccc72771a80b7851061027bc@local> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 2.6.32-longterm review patch. If anyone has any objections, please let me know. ------------------ commit 1f35d04a02a652f14566f875aef3a6f2af4cb77b upstream. The iomap[] array has PCIM_IOMAP_MAX (6) elements and not DEVICE_COUNT_RESOURCE (16). This bug was found using a static checker. It may be that the "if (!(mask & (1 << i)))" check means we never actually go past the end of the array in real life. Fixes: ec04b075843d ('iomap: implement pcim_iounmap_regions()') Signed-off-by: Dan Carpenter Acked-by: Tejun Heo Signed-off-by: Greg Kroah-Hartman Signed-off-by: Ben Hutchings (cherry picked from commit e7102453150c7081a27744989374c474d2ebea8e) Signed-off-by: Willy Tarreau --- lib/devres.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/devres.c b/lib/devres.c index 72c8909..e4891d5 100644 --- a/lib/devres.c +++ b/lib/devres.c @@ -338,7 +338,7 @@ void pcim_iounmap_regions(struct pci_dev *pdev, u16 mask) if (!iomap) return; - for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { + for (i = 0; i < PCIM_IOMAP_MAX; i++) { if (!(mask & (1 << i))) continue; -- 1.7.12.2.21.g234cd45.dirty