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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AD61BC433F5 for ; Sun, 3 Apr 2022 14:53:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1359103AbiDCOzt (ORCPT ); Sun, 3 Apr 2022 10:55:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33100 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1359106AbiDCOze (ORCPT ); Sun, 3 Apr 2022 10:55:34 -0400 Received: from outgoing.mit.edu (outgoing-auth-1.mit.edu [18.9.28.11]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C2F77120B7; Sun, 3 Apr 2022 07:53:38 -0700 (PDT) Received: from cwcc.thunk.org (pool-108-7-220-252.bstnma.fios.verizon.net [108.7.220.252]) (authenticated bits=0) (User authenticated as tytso@ATHENA.MIT.EDU) by outgoing.mit.edu (8.14.7/8.12.4) with ESMTP id 233ErMd0020997 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sun, 3 Apr 2022 10:53:22 -0400 Received: by cwcc.thunk.org (Postfix, from userid 15806) id 22D9615C3E9E; Sun, 3 Apr 2022 10:53:22 -0400 (EDT) From: "Theodore Ts'o" To: adilger.kernel@dilger.ca, Ye Bin , linux-ext4@vger.kernel.org Cc: "Theodore Ts'o" , lczerner@redhat.com, linux-kernel@vger.kernel.org, jack@suse.cz Subject: Re: [PATCH -next v2] ext4: fix use-after-free in ext4_search_dir Date: Sun, 3 Apr 2022 10:53:19 -0400 Message-Id: <164899700423.964485.9819897021180386715.b4-ty@mit.edu> X-Mailer: git-send-email 2.31.0 In-Reply-To: <20220324064816.1209985-1-yebin10@huawei.com> References: <20220324064816.1209985-1-yebin10@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 24 Mar 2022 14:48:16 +0800, Ye Bin wrote: > We got issue as follows: > EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue > ================================================================== > BUG: KASAN: use-after-free in ext4_search_dir fs/ext4/namei.c:1394 [inline] > BUG: KASAN: use-after-free in search_dirblock fs/ext4/namei.c:1199 [inline] > BUG: KASAN: use-after-free in __ext4_find_entry+0xdca/0x1210 fs/ext4/namei.c:1553 > Read of size 1 at addr ffff8881317c3005 by task syz-executor117/2331 > > [...] Applied, thanks! [1/1] ext4: fix use-after-free in ext4_search_dir commit: 44c0286d878598b59225b95596e8a19b3516fafc Best regards, -- Theodore Ts'o