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=-11.2 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 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 E6601C432BE for ; Wed, 1 Sep 2021 02:09:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C6C866108E for ; Wed, 1 Sep 2021 02:09:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240762AbhIACJz (ORCPT ); Tue, 31 Aug 2021 22:09:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56116 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238102AbhIACJz (ORCPT ); Tue, 31 Aug 2021 22:09:55 -0400 Received: from mail-io1-xd2a.google.com (mail-io1-xd2a.google.com [IPv6:2607:f8b0:4864:20::d2a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 923FCC061575 for ; Tue, 31 Aug 2021 19:08:59 -0700 (PDT) Received: by mail-io1-xd2a.google.com with SMTP id b200so2058499iof.13 for ; Tue, 31 Aug 2021 19:08:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20150623.gappssmtp.com; s=20150623; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-language:content-transfer-encoding; bh=DqeBoaQQIFct7aXruk86G14fVVoUpCqFzdFy9Fwtbxo=; b=Ln8KBFTKu/EwP60d9NwTTLlmc00MdEHhCPT1G1xuuXYF5BA2N623plmgTdPOPmKn2g m/+EUuiSLohILFAGSWkXvTF3ZAESvwZblI5RmrEHR4vBFGLU3iwrPjbgP6RC8oClAGCH r47//zH/EFXjuAOrCJMPPijMq94tiJ+RtVtdAy4KiFjYiUqiOrF8ZHgCQ8hJwxUZbKUi nHfFnUca0YHMPum2KUSQLtVgamfgxzgHUAxuhlfU9emHUzWG/8RMH7FfKLx9FbreRSsL FUkdus4WyJQDQgK+5ZQIuAZw0oeOZOAHQIA6ibxwgM7PzH0p2U+TsT5pfXNHFW501VFv 1AUw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=DqeBoaQQIFct7aXruk86G14fVVoUpCqFzdFy9Fwtbxo=; b=MhalmH1O4+5L/K1fdcqjtwJvJHc3cCc/pEyaqJqpfVhDz8r/50b7lPO62yy+hOz82e S9ozifrnNBJCPh0xN09OFiU17ePVvGfAYfbBY+ftO4WhEQeQYh55cUjoQQmSabiB6r0U AvfkQtVPctXVbXLBVXVge9+FRMw9dmXBz5UpTX7lnuNePt8v6i4YeLjGlsnf1T1kN6ri Or5bPzJWCthUy5ndDtxlzuq3wHQ+hVxw8POeUReMKLnnJyeR3ReaTr1Gut0UCvs1xJZI ccoIY9Q5G0QW3BRUXpLD8D2H6cCQmsZ1PYt1Fa+OzURsWdij7fjaHgcYp5oliX9r1+HT CfpQ== X-Gm-Message-State: AOAM530uQL0A5HWRDoOCbU3qWHirRfncs5PNJij+abCnqS4dDVvWquJX F58lrXRR4WpS4+zGbmQrZqCe2A== X-Google-Smtp-Source: ABdhPJwxhRlKF+u8FjsMGNAIDMscjy1XsjogD3fS1Uy2gpoWEZhImf7652ITaiNZLotesVyJFqiqgw== X-Received: by 2002:a6b:5819:: with SMTP id m25mr25003181iob.105.1630462138956; Tue, 31 Aug 2021 19:08:58 -0700 (PDT) Received: from [192.168.1.116] ([66.219.217.159]) by smtp.gmail.com with ESMTPSA id p12sm11045963ilp.87.2021.08.31.19.08.58 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 31 Aug 2021 19:08:58 -0700 (PDT) Subject: Re: [syzbot] general protection fault in __io_file_supports_nowait To: syzbot , asml.silence@gmail.com, io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com References: <000000000000f1f81105cae56d48@google.com> From: Jens Axboe Message-ID: Date: Tue, 31 Aug 2021 20:08:57 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <000000000000f1f81105cae56d48@google.com> 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 8/31/21 8:00 PM, syzbot wrote: > syzbot has found a reproducer for the following issue on: > > HEAD commit: b91db6a0b52e Merge tag 'for-5.15/io_uring-vfs-2021-08-30' .. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=12718683300000 > kernel config: https://syzkaller.appspot.com/x/.config?x=210537ff2ddcc232 > dashboard link: https://syzkaller.appspot.com/bug?extid=e51249708aaa9b0e4d2c > compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.1 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12615c35300000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16c57845300000 #syz test git://git.kernel.dk/linux-block for-5.15/io_uring -- Jens Axboe