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=-8.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS autolearn=ham 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 D435CC433E1 for ; Thu, 27 Aug 2020 11:59:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AF30D2177B for ; Thu, 27 Aug 2020 11:59:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728973AbgH0L7z (ORCPT ); Thu, 27 Aug 2020 07:59:55 -0400 Received: from mail-qk1-f197.google.com ([209.85.222.197]:35538 "EHLO mail-qk1-f197.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728473AbgH0Lnh (ORCPT ); Thu, 27 Aug 2020 07:43:37 -0400 Received: by mail-qk1-f197.google.com with SMTP id n128so4540022qke.2 for ; Thu, 27 Aug 2020 04:43:36 -0700 (PDT) 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=pwNkg447Nvt9DP6BHMmIFvIl++UIZS1Yr2SQgfIT/uI=; b=MPrHf+4oSHZRkIwO/PZXbkxj2Fg9sIpm1k8k6v5/dP/atND7KJfa3EpnYelGrjKs+L A32y08Pfpoh3f2hruZi9tcFeX2Nxv6fkKbiLYofWuf/FK2wF5taMKyKywqrXRF3wwEpM b5UeWRfGyRR7fOpjyOma8K1W+Jts2aApaK8lkSgWvAA5XhWDZ2FJ2gkXzfRE9xERDIGK JH/UEQzJP9GQtus0vetQc4Drp0yGM30D/OteC2A128zwOh3DLk9eZqdp+dLQG7fE8e/y PpDZrjf+NPiTKfcjSDA77nZroRyH16uaHUcbZ5RYxyRyWP18+hSiZgxMV796q/E24sdm 8llA== X-Gm-Message-State: AOAM533QlZAMuZ7Z5zwRSKTxzxeydkD5ZYB64HQ9ZjIiWogcxINe/sLK xyOAc8nk/bDncd5ZLM4d2hkn4Vd+v1tB02+d2TH3GqdExk02 X-Google-Smtp-Source: ABdhPJxDRrpZipHuFzQ757CmsZAIU/5jJofSaXf8x7xPsEtScojRDRY1s41xcjRSEzQrCEIS6tw+8a9moYMqcFRKFDnWyN4YaXIz MIME-Version: 1.0 X-Received: by 2002:a02:234c:: with SMTP id u73mr19132402jau.141.1598526846052; Thu, 27 Aug 2020 04:14:06 -0700 (PDT) Date: Thu, 27 Aug 2020 04:14:06 -0700 In-Reply-To: <00000000000068340d05add74c29@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000d2adea05adda0870@google.com> Subject: Re: WARNING: ODEBUG bug in get_signal From: syzbot To: alsa-devel@alsa-project.org, arnd@arndb.de, axboe@kernel.dk, baolin.wang@linaro.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, maz@kernel.org, oleg@redhat.com, perex@perex.cz, peterz@infradead.org, syzkaller-bugs@googlegroups.com, tiwai@suse.com, viro@zeniv.linux.org.uk Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this issue to: commit a9ed4a6560b8562b7e2e2bed9527e88001f7b682 Author: Marc Zyngier Date: Wed Aug 19 16:12:17 2020 +0000 epoll: Keep a reference on files added to the check list bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=15e57751900000 start commit: 15bc20c6 Merge tag 'tty-5.9-rc3' of git://git.kernel.org/p.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=17e57751900000 console output: https://syzkaller.appspot.com/x/log.txt?x=13e57751900000 kernel config: https://syzkaller.appspot.com/x/.config?x=978db74cb30aa994 dashboard link: https://syzkaller.appspot.com/bug?extid=e3cf8f93cf86936710db userspace arch: i386 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13236eb6900000 Reported-by: syzbot+e3cf8f93cf86936710db@syzkaller.appspotmail.com Fixes: a9ed4a6560b8 ("epoll: Keep a reference on files added to the check list") For information about bisection process see: https://goo.gl/tpsmEJ#bisection