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=-6.6 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 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 51D4AC433EF for ; Tue, 7 Sep 2021 21:32:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2E602610C9 for ; Tue, 7 Sep 2021 21:32:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244484AbhIGVdG (ORCPT ); Tue, 7 Sep 2021 17:33:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56332 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243883AbhIGVdG (ORCPT ); Tue, 7 Sep 2021 17:33:06 -0400 Received: from mail-wm1-x336.google.com (mail-wm1-x336.google.com [IPv6:2a00:1450:4864:20::336]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 21846C061575; Tue, 7 Sep 2021 14:31:59 -0700 (PDT) Received: by mail-wm1-x336.google.com with SMTP id g74so122748wmg.5; Tue, 07 Sep 2021 14:31:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=COYD3Y2szh6y3ZHhT8fAtKXqXu8FfFvWcnTthORBujE=; b=TFAxO5xCZsHjvRS0yp2WjIxYvGrg7uAYl0mOgc3A7X8gNi7Q4TiQDnCdXjnKtfghtv s1MX3b5TRFXc538t+BuwczseNHifwfgZaW9wKBaOfdiNRsAhZmMNvAMwTH5/nHNCpnaK s3YwMRhXp2FN3LlhkDxMhGj0Hf8w4Pw6tnly7FmyzI1+HvUARrVQweVmP6oPrdmSV952 jrTGGQICW21Vg4/XSrwKoeqPQ91cF/qtLJ5LoJq74iarEyrIZz0ftqf5bNwib+X31nlO vxo4Des3OE5nTVYos4KsRkEWi14pdo7vl0i0E79+QranFcd8+fNZqloQQC1dyBkK+qSr BSJA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=COYD3Y2szh6y3ZHhT8fAtKXqXu8FfFvWcnTthORBujE=; b=JSdY6DazJUpDUlumb/XyIHhPY13HQKRSTfGGPEeMZB0RrSI3wAwPJnhz80ukO4Jt4L dm6Ni5vVTTNhBx9LU/SNx8PCpA/Cwd/JdGA9NiXJYQ3wQfjC/CP1yiHrirmKRcdxCBh7 BVYqt8pDOomUyvlNyj2UTpdlJYCp/74D72fEywpmx6K7ugSnTlWpCJNhcIRj4MatmlJo oWwWOuMaN6lixOPGO+S0sgf5I7/wta8qo/JB9BHwVF7miOsLnSTu3FheCau/F90kF9ap momRUZIU+0TRA9X2v2mW42zp15cdFgCK64x+piIg+kQkPmYkHkEwavG9NU4xDfLcBzm0 TR6A== X-Gm-Message-State: AOAM5301ywfXtvZ6aNSUS6zJC+dLxmQs8OWHfV6wu7bt6CE8CcUd6R6d fIPUN8kSSxVVUFptAhulNajhhmG9GgE= X-Google-Smtp-Source: ABdhPJwDqUMv5YBewE9mkew9rVXf7rHEcXPhAUnrfp8Q9uDepKaiTnyy5a0uCnOEfoNpt8ZyW6dVcA== X-Received: by 2002:a1c:28b:: with SMTP id 133mr256358wmc.138.1631050317396; Tue, 07 Sep 2021 14:31:57 -0700 (PDT) Received: from [192.168.8.197] ([185.69.144.232]) by smtp.gmail.com with ESMTPSA id s15sm173102wrb.22.2021.09.07.14.31.56 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 07 Sep 2021 14:31:56 -0700 (PDT) Subject: Re: INFO: task hung in io_uring_cancel_generic To: Jens Axboe , Hao Sun , io-uring@vger.kernel.org Cc: linux-kernel@vger.kernel.org References: From: Pavel Begunkov Message-ID: Date: Tue, 7 Sep 2021 22:31:23 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org On 9/7/21 8:30 PM, Jens Axboe wrote: > On 9/7/21 5:50 AM, Hao Sun wrote: >> Hello, >> >> When using Healer to fuzz the latest Linux kernel, the following crash >> was triggered. >> >> HEAD commit: 7d2a07b76933 Linux 5.14 >> git tree: upstream >> console output: >> https://drive.google.com/file/d/1c8uRooM0TwJiTIwEviOCB4RC-hhOgGHR/view?usp=sharing >> kernel config: https://drive.google.com/file/d/1XD9WYDViQLSXN7RGwH8AGGDvP9JvOghx/view?usp=sharing >> Similar report: >> https://groups.google.com/u/1/g/syzkaller-bugs/c/FvdcTiJIGtY/m/PcXkoenUAAAJ >> >> Sorry, I don't have a reproducer for this crash, hope the symbolized >> report can help. >> If you fix this issue, please add the following tag to the commit: >> Reported-by: Hao Sun > > Would be great with a reproducer for this one, though... And syzbot usually sends an execution log with all syz programs it run, which may be helpful. Any chance you have anything similar left? -- Pavel Begunkov