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 AEC3DCD13DA for ; Mon, 18 Sep 2023 10:51:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241259AbjIRKvc (ORCPT ); Mon, 18 Sep 2023 06:51:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34080 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241269AbjIRKu7 (ORCPT ); Mon, 18 Sep 2023 06:50:59 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DE16D188; Mon, 18 Sep 2023 03:50:23 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8666AC433C8; Mon, 18 Sep 2023 10:50:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1695034223; bh=xrXFiitV9cg7iNtsA2pDOZav9rtVTmsOfAZLd0oEB9s=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=TZsAy5ZMjVjc0xrbAbhRHXJ1nxSna2ldKcvq+v1lyoaFDxfqgU610q4ghN2XNNLMY hcYmU5z9f+/v2qpSkTVJHuwFBKOd4+uKePjbPFZhZ38prfruBw4Yo5P65IOphxiecm OTsas2wwkvfIk9Atujdyx1JSyaZ12BPVOI8l+hURw9AOa1D0lWLW10Gn+0P3Qt9GH0 8OBL5w9iLIUx3r3a3tdehWgaT52QbuPHFkVyIfAKcRCihHINLOCzLq67AYoQdMj+zi BRUUUasfAX5R+zOVUQeE9Yozs/DmmerXrvr2fnTn+bRGhojBF7xIOGMP1+Js6cKoJ0 sIWBIg6HzmyAw== Date: Mon, 18 Sep 2023 12:50:13 +0200 From: Christian Brauner To: syzbot Cc: adilger.kernel@dilger.ca, jlayton@kernel.org, linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, tytso@mit.edu, viro@zeniv.linux.org.uk Subject: Re: [syzbot] [ext4?] WARNING in setattr_copy Message-ID: <20230918-adrenalin-extra-64562065d07b@brauner> References: <00000000000033d44706057458b3@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <00000000000033d44706057458b3@google.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Sep 15, 2023 at 11:51:54PM -0700, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: 3c13c772fc23 Add linux-next specific files for 20230912 > git tree: linux-next > console+strace: https://syzkaller.appspot.com/x/log.txt?x=15b02b0c680000 > kernel config: https://syzkaller.appspot.com/x/.config?x=f7149cbda1664bc5 > dashboard link: https://syzkaller.appspot.com/bug?extid=450a6d7e0a2db0d8326a > compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=155b32b4680000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12cf6028680000 > > Downloadable assets: > disk image: https://storage.googleapis.com/syzbot-assets/eb6fbc71f83a/disk-3c13c772.raw.xz > vmlinux: https://storage.googleapis.com/syzbot-assets/2d671ade67d9/vmlinux-3c13c772.xz > kernel image: https://storage.googleapis.com/syzbot-assets/b2b7190a3a61/bzImage-3c13c772.xz > > The issue was bisected to: > > commit d6f106662147d78e9a439608e8deac7d046ca0fa > Author: Jeff Layton > Date: Wed Aug 30 18:28:43 2023 +0000 > > fs: have setattr_copy handle multigrain timestamps appropriately > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1419f8d8680000 > final oops: https://syzkaller.appspot.com/x/report.txt?x=1619f8d8680000 > console output: https://syzkaller.appspot.com/x/log.txt?x=1219f8d8680000 > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+450a6d7e0a2db0d8326a@syzkaller.appspotmail.com > Fixes: d6f106662147 ("fs: have setattr_copy handle multigrain timestamps appropriately") #syz unset subsystems: ext4 #syz set subsystems: overlayfs