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=-3.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 BA15AC4320A for ; Wed, 1 Sep 2021 06:41:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A11CD60F25 for ; Wed, 1 Sep 2021 06:41:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242353AbhIAGmG (ORCPT ); Wed, 1 Sep 2021 02:42:06 -0400 Received: from mail-il1-f198.google.com ([209.85.166.198]:36522 "EHLO mail-il1-f198.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242273AbhIAGmF (ORCPT ); Wed, 1 Sep 2021 02:42:05 -0400 Received: by mail-il1-f198.google.com with SMTP id s15-20020a056e02216f00b002276040aa1dso1244841ilv.3 for ; Tue, 31 Aug 2021 23:41:08 -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=P/IMCvQrvg+8vgiRvuUq0CwJ8bLlyNbWMfPV5tYVEzM=; b=Qc52Z7cjj6llHFieHBZhHYlqtD7YdZBjSgilEOjxG1tPcHHELI+dyMid/VvZeB4sS9 I94vA6FwZkWFxro+tV+xYU/ZoKTV4+Xa0shC8tl5ncyHqWFajkL2Q3kUHSsezijoWUvm 1pAwilKZquiPlJhg7kf48hN+DOD98z+LEAzTD/V3mTXkJiICrYpCGRVARBH9q5EKXT95 8psPstcbpToTXZ02bE1DNrlySquPcHZHKOOiCdgLfxzO2FU3T8XRAI4jZTVc7jxFTSKc W5lE6kvekngL4Nw7c7FSrUmhI2NO2Y0O9bcIb4TcOKY3oY/DrMPjLKUlYTx0DxYGu+3K Ovwg== X-Gm-Message-State: AOAM532LUK/uDWycnMI0k8/7EqI8CSkL7ygWFMgPg5upt0U+gJmYmNqt UjEzQOldtY4nkD64o2EpoHsEVElLgP3mpLybCIxbJ2ogDgDS X-Google-Smtp-Source: ABdhPJwjbVl36PRGrxPo3VWFpYPdF3rcxUyLcJL+kpHKRktKIhGPoUpcjjA/JpOC4UE7iVT+Raz2Xf8nGOR5VzvFVVs5vlXj6ozj MIME-Version: 1.0 X-Received: by 2002:a6b:f908:: with SMTP id j8mr25814233iog.22.1630478468594; Tue, 31 Aug 2021 23:41:08 -0700 (PDT) Date: Tue, 31 Aug 2021 23:41:08 -0700 In-Reply-To: <0000000000006d354305cae2253f@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000ef423f05cae95929@google.com> Subject: Re: [syzbot] general protection fault in __io_file_supports_nowait From: syzbot To: asml.silence@gmail.com, axboe@kernel.dk, haoxu@linux.alibaba.com, io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this issue to: commit a8295b982c46d4a7c259a4cdd58a2681929068a9 Author: Hao Xu Date: Fri Aug 27 09:46:09 2021 +0000 io_uring: fix failed linkchain code logic bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=147a8045300000 start commit: b91db6a0b52e Merge tag 'for-5.15/io_uring-vfs-2021-08-30' .. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=167a8045300000 console output: https://syzkaller.appspot.com/x/log.txt?x=127a8045300000 kernel config: https://syzkaller.appspot.com/x/.config?x=961d30359ac81f8c dashboard link: https://syzkaller.appspot.com/bug?extid=e51249708aaa9b0e4d2c syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10a91625300000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12512291300000 Reported-by: syzbot+e51249708aaa9b0e4d2c@syzkaller.appspotmail.com Fixes: a8295b982c46 ("io_uring: fix failed linkchain code logic") For information about bisection process see: https://goo.gl/tpsmEJ#bisection