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=-6.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 64BDFC04AAC for ; Mon, 20 May 2019 12:37:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2F3D020815 for ; Mon, 20 May 2019 12:37:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1558355828; bh=5zCdNk6o7TvfEzmsRexz2WXo2rRTLCTto/KnK33XGaM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=s8VirfjqPcDyb071KJiFk7zpSe+lIDOj8VlmGnxzpNwLrxx0RHnAYID6BQ5TJbdaV l7VIwdhOq8IXptiD0qw4qIyV3EK8j938iE70MiKhU//Nr5mtn1bI9v/I9FHcvJsL+V VOftD6/Lwll+mS6i3jy1jtNAD8L3lXVBmJQuuPE8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390490AbfETMhH (ORCPT ); Mon, 20 May 2019 08:37:07 -0400 Received: from mail.kernel.org ([198.145.29.99]:56018 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2391338AbfETMgx (ORCPT ); Mon, 20 May 2019 08:36:53 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.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 7BB68204FD; Mon, 20 May 2019 12:36:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1558355813; bh=5zCdNk6o7TvfEzmsRexz2WXo2rRTLCTto/KnK33XGaM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=vTxIcz9bL0Z3MIM3139zFxb0F3R9Nspo/Bjaci7FDAKtsagOYrEukTJHw1ZVcOkIS sTt6ByYeoT2ozu6nIjTtdc14l+D/3dJwUTKTXYVOrKur0mHm48nxs2KqfewGQqZq1I jZOY/REnpyk5ok4sQTBVqv9PMxSqqsKR8QVFePfo= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Arthur Marsh , Theodore Tso Subject: [PATCH 5.1 128/128] ext4: fix block validity checks for journal inodes using indirect blocks Date: Mon, 20 May 2019 14:15:15 +0200 Message-Id: <20190520115257.193032813@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190520115249.449077487@linuxfoundation.org> References: <20190520115249.449077487@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Theodore Ts'o commit 170417c8c7bb2cbbdd949bf5c443c0c8f24a203b upstream. Commit 345c0dbf3a30 ("ext4: protect journal inode's blocks using block_validity") failed to add an exception for the journal inode in ext4_check_blockref(), which is the function used by ext4_get_branch() for indirect blocks. This caused attempts to read from the ext3-style journals to fail with: [ 848.968550] EXT4-fs error (device sdb7): ext4_get_branch:171: inode #8: block 30343695: comm jbd2/sdb7-8: invalid block Fix this by adding the missing exception check. Fixes: 345c0dbf3a30 ("ext4: protect journal inode's blocks using block_validity") Reported-by: Arthur Marsh Signed-off-by: Theodore Ts'o Signed-off-by: Greg Kroah-Hartman --- fs/ext4/block_validity.c | 5 +++++ 1 file changed, 5 insertions(+) --- a/fs/ext4/block_validity.c +++ b/fs/ext4/block_validity.c @@ -276,6 +276,11 @@ int ext4_check_blockref(const char *func __le32 *bref = p; unsigned int blk; + if (ext4_has_feature_journal(inode->i_sb) && + (inode->i_ino == + le32_to_cpu(EXT4_SB(inode->i_sb)->s_es->s_journal_inum))) + return 0; + while (bref < p+max) { blk = le32_to_cpu(*bref++); if (blk &&