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=-0.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no 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 6D5B2C433E0 for ; Mon, 1 Jun 2020 08:43:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 43C2720734 for ; Mon, 1 Jun 2020 08:43:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591001020; bh=YagICseskD/MQ9NyjY8gqaD0BIKAvzeNKznfKrkmz1Y=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=PyhRupO2jyweft5/SfszwoQGAUWmotZLf4W1nYi85ZbKU7lUQQRotugTesZtJCgB0 yw3zTdg2kdT/4XkEPVhb6I67YEipGXlULYdQAODEWvadBg8fyJltSlfAojSnml2O+Z YZXh/86kYVjRgH5L3PzrDq+5UGMhGdEDcKQEVZ+k= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728196AbgFAInj (ORCPT ); Mon, 1 Jun 2020 04:43:39 -0400 Received: from mail.kernel.org ([198.145.29.99]:38652 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726142AbgFAInj (ORCPT ); Mon, 1 Jun 2020 04:43:39 -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 1EC7C206E2; Mon, 1 Jun 2020 08:43:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591001017; bh=YagICseskD/MQ9NyjY8gqaD0BIKAvzeNKznfKrkmz1Y=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=j0hLucYicv7L1jtVOhOW9BPFE0jHKDPqH9z+k7vG1k0dqNCj2mhipECCRb7oehPba KJcMHxStlJv33OqWxujbODDwZt8rfr2j/5Adlb6KFJKJQBbr50PHPOvNcjRh6A5O/N 3Mle6HL3B98nae0//YJq3L3MVb3pyZUatOSVINQg= Date: Mon, 1 Jun 2020 10:43:35 +0200 From: Greg KH To: syzbot Cc: andreyknvl@google.com, balbi@kernel.org, ingrassia@epigenesys.com, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: WARNING in snd_usbmidi_submit_urb/usb_submit_urb Message-ID: <20200601084335.GA1667318@kroah.com> References: <000000000000bbd09005a6fdc6cc@google.com> <000000000000f0261a05a700adf5@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <000000000000f0261a05a700adf5@google.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jun 01, 2020 at 12:24:03AM -0700, syzbot wrote: > syzbot has bisected this bug to: > > commit f2c2e717642c66f7fe7e5dd69b2e8ff5849f4d10 > Author: Andrey Konovalov > Date: Mon Feb 24 16:13:03 2020 +0000 > > usb: gadget: add raw-gadget interface > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=164afcf2100000 > start commit: bdc48fa1 checkpatch/coding-style: deprecate 80-column warn.. > git tree: upstream > final crash: https://syzkaller.appspot.com/x/report.txt?x=154afcf2100000 > console output: https://syzkaller.appspot.com/x/log.txt?x=114afcf2100000 > kernel config: https://syzkaller.appspot.com/x/.config?x=129ea1e5950835e5 > dashboard link: https://syzkaller.appspot.com/bug?extid=5f1d24c49c1d2c427497 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12d70cf2100000 > > Reported-by: syzbot+5f1d24c49c1d2c427497@syzkaller.appspotmail.com > Fixes: f2c2e717642c ("usb: gadget: add raw-gadget interface") > > For information about bisection process see: https://goo.gl/tpsmEJ#bisection So the tool that was used to create the bug has bisected the problem to the patch that adds the tool to the kernel to test for the issue? This feels wrong... greg k-h