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 69D99C76196 for ; Sun, 2 Apr 2023 08:45:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230234AbjDBIpk (ORCPT ); Sun, 2 Apr 2023 04:45:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58436 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229459AbjDBIph (ORCPT ); Sun, 2 Apr 2023 04:45:37 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8CC4B65BC for ; Sun, 2 Apr 2023 01:45:36 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 1F917610AA for ; Sun, 2 Apr 2023 08:45:36 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2A865C433EF; Sun, 2 Apr 2023 08:45:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1680425135; bh=tckU6xp93K5qFKC4UgCNUB4eQC8kIBs4amnFi56JE5Q=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=kBLzA62sTHAO9FrvaSX4nzKfeAs3pmILEROxBQZ7Zyz1r+9wR79FTP6ehTPHn+IDL C9OcDp30awqW89VrfB9c1d8AXHbc9Y4AQOl8pjouHM8Nx4SHKMdxbCnoj59QKnH4xi tgvahI/Qj+9HGy1QF4SPneB/F15/2wyQsxAMEsZM= Date: Sun, 2 Apr 2023 10:45:32 +0200 From: Greg KH To: syzbot Cc: linux-kernel@vger.kernel.org, rafael@kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] [kernel?] WARNING in class_register Message-ID: <2023040205-apostle-retention-cebd@gregkh> References: <00000000000055cd8405f84c5386@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <00000000000055cd8405f84c5386@google.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Apr 01, 2023 at 01:39:42PM -0700, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: a6d9e3034536 Add linux-next specific files for 20230330 > git tree: linux-next > console+strace: https://syzkaller.appspot.com/x/log.txt?x=1496edcdc80000 > kernel config: https://syzkaller.appspot.com/x/.config?x=aceb117f7924508e > dashboard link: https://syzkaller.appspot.com/bug?extid=ca3d9f693dfa69f61371 > compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14f57859c80000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=167cc501c80000 > > Downloadable assets: > disk image: https://storage.googleapis.com/syzbot-assets/ec1f900ea929/disk-a6d9e303.raw.xz > vmlinux: https://storage.googleapis.com/syzbot-assets/fabbf89c0d22/vmlinux-a6d9e303.xz > kernel image: https://storage.googleapis.com/syzbot-assets/1ed05d6192fa/bzImage-a6d9e303.xz > > The issue was bisected to: > > commit dcfbb67e48a2becfce7990386e985b9c45098ee5 > Author: Greg Kroah-Hartman > Date: Fri Mar 24 10:01:31 2023 +0000 > > driver core: class: use lock_class_key already present in struct subsys_private > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=10190b49c80000 > final oops: https://syzkaller.appspot.com/x/report.txt?x=12190b49c80000 > console output: https://syzkaller.appspot.com/x/log.txt?x=14190b49c80000 > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+ca3d9f693dfa69f61371@syzkaller.appspotmail.com > Fixes: dcfbb67e48a2 ("driver core: class: use lock_class_key already present in struct subsys_private") Should already be fixed by: https://lore.kernel.org/all/2023040126-blandness-duckling-bd55@gregkh/ which was a different syzbot-reported issue with this same commit. thanks, greg k-h