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=-13.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS autolearn=unavailable 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 1E05CC4361B for ; Thu, 10 Dec 2020 19:26:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B36212067C for ; Thu, 10 Dec 2020 19:26:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2393383AbgLJTZB (ORCPT ); Thu, 10 Dec 2020 14:25:01 -0500 Received: from mail-io1-f69.google.com ([209.85.166.69]:35868 "EHLO mail-io1-f69.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2393324AbgLJTYo (ORCPT ); Thu, 10 Dec 2020 14:24:44 -0500 Received: by mail-io1-f69.google.com with SMTP id y197so4713402iof.3 for ; Thu, 10 Dec 2020 11:24:29 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=Xa0iQU8Q/C+YSjMiw9XJ96Kz4N4tah7/BH4NCXeOx4M=; b=a+hG1AqXPAfEu+sTBbLYY1yPFodvb1dSsJp9uRr08Al8ssLwjjlQ3+HgBe8wWj+zV+ G5dw5Ihwr0ezlIGwNtiNbrCKpMkfvl+fSWEvK8qDofcYc0N8rkl5GqCcsPRlAZsUYfte p6wwtmOVjq6wY5Srl/ZzvjBKMjBRNZR2eC51LlIufSM1tXxTxJTa6I1IpDng8AKNvdPM KyFdnHW3xnFsNDglm+v1QgSMEBs5kdukCRPKTEDXXGN2GgUxNGJjoJUbgxvwKlO0l03U ez3Zrs6eZUqDUK6DQgNd0KKi4IJqOX+6x/fAPB8wcaeAsWutEd4e3HC9GcrRf1/58fiv XhDg== X-Gm-Message-State: AOAM530KZfePlnIDS877r1b/rQ62KB3bsqgjeYXIMTt4Kdmoam0/vRpU wdSc/zQa4y+4M84cfGATL1bfqqooquOa6LGF2OQhlZzffGQ5 X-Google-Smtp-Source: ABdhPJw89+a7UPMpCsZTfxcSNJBk4rtWLQnGEptKIq8hWLFCqIinN+sPXA8GzWSfq1CEL5GO5Krtdag6Leg0Ep3Ab4QTo1ofp8+a MIME-Version: 1.0 X-Received: by 2002:a92:d0c8:: with SMTP id y8mr10133578ila.46.1607628243790; Thu, 10 Dec 2020 11:24:03 -0800 (PST) Date: Thu, 10 Dec 2020 11:24:03 -0800 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000066f16005b6211ed2@google.com> Subject: Re: UBSAN: shift-out-of-bounds in ext4_fill_super From: syzbot To: adilger.kernel@dilger.ca, clang-built-linux@googlegroups.com, dvyukov@google.com, linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org, natechancellor@gmail.com, ndesaulniers@google.com, syzkaller-bugs@googlegroups.com, tytso@mit.edu Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-and-tested-by: syzbot+345b75652b1d24227443@syzkaller.appspotmail.com Tested on: commit: e360ba58 ext4: fix a memory leak of ext4_free_data git tree: git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git kernel config: https://syzkaller.appspot.com/x/.config?x=fe9725f8845d9fe6 dashboard link: https://syzkaller.appspot.com/bug?extid=345b75652b1d24227443 compiler: gcc (GCC) 10.1.0-syz 20200507 patch: https://syzkaller.appspot.com/x/patch.diff?x=1166cf17500000 Note: testing is done by a robot and is best-effort only.