From patchwork Mon Nov 25 03:22:07 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Filipe Manana X-Patchwork-Id: 3227921 Return-Path: X-Original-To: patchwork-linux-btrfs@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 07FFD9F3AE for ; Mon, 25 Nov 2013 03:22:21 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 3155120254 for ; Mon, 25 Nov 2013 03:22:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 429EC20253 for ; Mon, 25 Nov 2013 03:22:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753340Ab3KYDWP (ORCPT ); Sun, 24 Nov 2013 22:22:15 -0500 Received: from mail-wg0-f43.google.com ([74.125.82.43]:59249 "EHLO mail-wg0-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753251Ab3KYDWO (ORCPT ); Sun, 24 Nov 2013 22:22:14 -0500 Received: by mail-wg0-f43.google.com with SMTP id k14so717426wgh.10 for ; Sun, 24 Nov 2013 19:22:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id; bh=o+QKgEZ6Rgi+lnEdPqdxEfEGk7CUELTKLGsO8FQlJi8=; b=cPEB9NzYQDQTYK2qwiYL9fA4cqRWzyP3uTEJolPUnPEWIaMbsHr300Pw/nSTkJztfD hJ6mnb14fm1huxuyCLd7eoM6Dw2B+hxhLWcrc/7t4/qQg4w3bemCJcc/KnqT9eN8PVuJ k4nsVSfAr6YD15CXVa5wmug8N4qlESsQtstU9x1rvV12DleFnI7Ive9ml+g3wiSzTy0J adr5kmIYug0qgp2q5LB9pNEaqB7n7fRe08rgq4fGHa+o0v755HAJDcy2LPILhPNjjdwR LK8LmwfjFcTtBoP/qluHun7Dp4JaglbqmtzbGWzUujd5L+1nU07RPTHCvRPj2qM6yKN9 7HxQ== X-Received: by 10.180.10.74 with SMTP id g10mr11737983wib.11.1385349734004; Sun, 24 Nov 2013 19:22:14 -0800 (PST) Received: from storm-desktop.lan (bl9-170-14.dsl.telepac.pt. [85.242.170.14]) by mx.google.com with ESMTPSA id b7sm44211172wiz.8.2013.11.24.19.22.13 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Sun, 24 Nov 2013 19:22:13 -0800 (PST) From: Filipe David Borba Manana To: linux-btrfs@vger.kernel.org Cc: Filipe David Borba Manana Subject: [PATCH] Btrfs: fix extent boundary check in bio_readpage_error Date: Mon, 25 Nov 2013 03:22:07 +0000 Message-Id: <1385349727-982-1-git-send-email-fdmanana@gmail.com> X-Mailer: git-send-email 1.7.9.5 Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org X-Spam-Status: No, score=-6.8 required=5.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, T_DKIM_INVALID, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Filipe David Borba Manana --- fs/btrfs/extent_io.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index dfb528d..cb9ce69 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -2166,7 +2166,7 @@ static int bio_readpage_error(struct bio *failed_bio, u64 phy_offset, return -EIO; } - if (em->start > start || em->start + em->len < start) { + if (em->start > start || em->start + em->len <= start) { free_extent_map(em); em = NULL; }