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=-13.0 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,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 84BE8C4338F for ; Mon, 16 Aug 2021 22:51:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5D04260F22 for ; Mon, 16 Aug 2021 22:51:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234310AbhHPWvz (ORCPT ); Mon, 16 Aug 2021 18:51:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40290 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234314AbhHPWvr (ORCPT ); Mon, 16 Aug 2021 18:51:47 -0400 Received: from mail-wr1-x432.google.com (mail-wr1-x432.google.com [IPv6:2a00:1450:4864:20::432]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 39F62C0613CF; Mon, 16 Aug 2021 15:51:15 -0700 (PDT) Received: by mail-wr1-x432.google.com with SMTP id x12so25740899wrr.11; Mon, 16 Aug 2021 15:51:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-language:content-transfer-encoding; bh=ofQY1mQBvnfrDRq8IwE+M9gjT2BSYoc2hzlBRViABDo=; b=Veqp45NSRcVHNb65GcV2PYdNMQZiR8Ar7QMmsVHJv9+u8KiVVKpCaYMv+iQUa2cUPG oIiwL12wBMdy6NVXwCjV2GmPdv6FqN+yaOYjqtgC7031a4EQ2Kw0ilsKghz9UfZJV0We v15fWl5RUL4FV+7BM+OL9SIMg+aP5Jj+ouK2e4sLB6y0QWpqBnmAqxj2+K2+Xm90qXhg bBimHWPixPJ7c6xhAtJ3v5s6Y+p3Dg6SsF/LlRjKDm6dNxH8mtYRxBJYQgx3EZ6nDA0W 9cIqrYZ2z9301dXXzlrhvq6A1ALPQL+kbGCw4Lw5CX7pZIh1T1ZlaYS4O9+b5w4Slrxn Gycw== 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=ofQY1mQBvnfrDRq8IwE+M9gjT2BSYoc2hzlBRViABDo=; b=rhtnNE5K7cvJjl56OZgrkxOpsfLVdxzlu2O9WP23oyZl1ZDy+jcpNDvpc0aoV795oJ c34IbgpduET7rLolRrpQA7WxlAeIvoljpC42WlvxWooc728hvejMPXc2xx1u91OCo5hw xJo/H+MhqLdR4xdvRPpU0HLuGu4XJiVpw+qU1i8656KzVodY+mzz5lVZ0i+ALwL0mHK6 aAsv1eYO9sUztnvpWHa38Rq8yoBwBxaKHtwqD9f4Fd+WuF5xQJU9AtC4OZ9tWMzI0OXq BjcaCh5Rb7bfTellh40JtnoDsRPlcxcYU/hkYhFwh9m1BhF/x5orqh2MRVIz1Sxi9wYU DA6A== X-Gm-Message-State: AOAM532uB0BUsZx8mzqJt0NrmxqIo8R4ySmmbJJEq3Y1Ofb6GZUrCDO5 FLycKjFrK+ewve0Cz0ZLGDo= X-Google-Smtp-Source: ABdhPJwwG3OlL7pFAxzo5XfgoGWXmTE32jwfJbyXDo3beODWdQCSbOSQwCcaAC+6Cn/CmPJQxJ/d0g== X-Received: by 2002:a05:6000:1b8e:: with SMTP id r14mr373440wru.251.1629154273878; Mon, 16 Aug 2021 15:51:13 -0700 (PDT) Received: from [192.168.8.197] ([85.255.233.12]) by smtp.gmail.com with ESMTPSA id h2sm150174wmm.33.2021.08.16.15.51.13 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 16 Aug 2021 15:51:13 -0700 (PDT) Subject: Re: [syzbot] general protection fault in __io_queue_sqe To: Jens Axboe , syzbot , io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com References: <00000000000011fc2505c9b41023@google.com> <8236fd18-bf97-b7c6-b2c7-84df0a9bd8e5@kernel.dk> From: Pavel Begunkov Message-ID: Date: Mon, 16 Aug 2021 23:50:42 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.12.0 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 8/16/21 10:57 PM, Jens Axboe wrote: > On 8/16/21 3:49 PM, Jens Axboe wrote: >> On 8/16/21 3:41 PM, syzbot wrote: >>> syzbot has found a reproducer for the following issue on: >>> >>> HEAD commit: b9011c7e671d Add linux-next specific files for 20210816 >>> git tree: linux-next >>> console output: https://syzkaller.appspot.com/x/log.txt?x=1784d5e9300000 >>> kernel config: https://syzkaller.appspot.com/x/.config?x=a245d1aa4f055cc1 >>> dashboard link: https://syzkaller.appspot.com/bug?extid=2b85e9379c34945fe38f >>> 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=17479216300000 >>> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=147f0111300000 >> >> #syz test: git://git.kernel.dk/linux-block for-next > > Forgot to push out the update... > > #syz test: git://git.kernel.dk/linux-block 16a390b4109c6eaa65f84e31c2c1d19bcbeb666f fwiw, tested locally, solves the problem -- Pavel Begunkov