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 C21DBC433FE for ; Thu, 29 Sep 2022 20:50:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229754AbiI2Uun (ORCPT ); Thu, 29 Sep 2022 16:50:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41146 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229724AbiI2Uun (ORCPT ); Thu, 29 Sep 2022 16:50:43 -0400 Received: from zeniv.linux.org.uk (zeniv.linux.org.uk [IPv6:2a03:a000:7:0:5054:ff:fe1c:15ff]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 18FDA1449EC; Thu, 29 Sep 2022 13:50:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=linux.org.uk; s=zeniv-20220401; h=Sender:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=IbHeC0UoLetN8Eh2Saee1yLcn/79FwEYvj2s6jPeAiI=; b=TcghY1nF1nA7Y4RCBZB2R0o+Xt oHKqD6itrUaXTdQzX7cZxAJFBB5oszavCObpiMaaPl13xgOIUGy8uz77hiGP695a1OcmT1YaoPNXB TPDiS2gqvx9OFOYLfOQ1BU2w73yq9jJO5ZEjBuzoKF4xQteTXPVuWx3J5yFLpL25qQfkFaIabEcMt zAs9ZZucSgkgo8aP41CDaZUF+n0vgBlTIlLBmO7m6Q4XEr/NvqPrD5vfNHuyMb1ZoaFtm9NfVqRiE A8XxBohMNHWwfk4Hx/O18D1Aq0p1Ftb2vDO6K9yMfQUGyE3vOrbTCwzmDaljjyIwry6xo9EIidas5 o0u8aFTQ==; Received: from viro by zeniv.linux.org.uk with local (Exim 4.96 #2 (Red Hat Linux)) id 1oe0US-0055cL-0P; Thu, 29 Sep 2022 20:50:40 +0000 Date: Thu, 29 Sep 2022 21:50:40 +0100 From: Al Viro To: syzbot Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] kernel panic: stack is corrupted in writeback_single_inode Message-ID: References: <0000000000008ea2da05e979435f@google.com> <0000000000000f962805e9d6ae62@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <0000000000000f962805e9d6ae62@google.com> Sender: Al Viro Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org On Thu, Sep 29, 2022 at 01:25:36PM -0700, syzbot wrote: > syzbot has found a reproducer for the following issue on: > > HEAD commit: c3e0e1e23c70 Merge tag 'irq_urgent_for_v6.0' of git://git... > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=17ab519c880000 > kernel config: https://syzkaller.appspot.com/x/.config?x=ba0d23aa7e1ffaf5 > dashboard link: https://syzkaller.appspot.com/bug?extid=84b7b87a6430a152c1f4 > compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=157c2000880000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=105224b8880000 > > Downloadable assets: > disk image: https://storage.googleapis.com/syzbot-assets/e7f1f925f94e/disk-c3e0e1e2.raw.xz > vmlinux: https://storage.googleapis.com/syzbot-assets/830dabeedf0d/vmlinux-c3e0e1e2.xz > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+84b7b87a6430a152c1f4@syzkaller.appspotmail.com ... and you _still_ have not bothered to Cc ntfs maintainers. Once more, with feeling: If you are fuzzing something (ntfs, in this case), the people most interested in your report are the maintainers of the code in question. You know that from the moment you put the test together. No matter where exactly the oops gets triggered, what it looks like, etc.