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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2BEE8C433EF for ; Sun, 3 Oct 2021 07:35:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0D25C61A03 for ; Sun, 3 Oct 2021 07:35:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229941AbhJCHgC (ORCPT ); Sun, 3 Oct 2021 03:36:02 -0400 Received: from mail-io1-f69.google.com ([209.85.166.69]:33429 "EHLO mail-io1-f69.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229931AbhJCHfz (ORCPT ); Sun, 3 Oct 2021 03:35:55 -0400 Received: by mail-io1-f69.google.com with SMTP id j14-20020a6b310e000000b005db4ba30be6so13274751ioa.0 for ; Sun, 03 Oct 2021 00:34:08 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=c7Hhg1HS9ONwmBtdl/+gEC6wT21nlHlGkIEyTDo6QXw=; b=7+PFsIQf3W0XK3rC/yAAZwoJ4Gz1v5652qYJiHxLRaOZp3gtpzeBDtxeIwKBFy08Vr fp4JBPtN+EEb8mog+AtYgD7ny7omYFd/Q3TGsI9uf7Em3XkZLmmE/invw81kQ8S4Elyr tnPCVopNi9v73HZy1cHldM+XJNsPZMOLLmopwVTYN4L1dWmPdcdH/5d8eTn9Kja7H6Qu Mq1sMdHVkYzaYqBJZRAJnybEipwfsTQJGW+Lk3KDocBNPXWBJsrnbmEd3bQOyiEEn/Rx dlWeZkXdPbHFGlQMMZSRVcF0ACJ4QaXh83ip42rWCOEtcc0Z0FAHSiEJPov3OvXLuLrA r21g== X-Gm-Message-State: AOAM530J7qxVfAs9meWQLMq5w5rpydBJRCLt76KKxjw7Q+uwC6MTBldc kUwbZGtdLfwj6UbWzMlYQ2Cdyz8yoKf9LzSw1f85ohtM22dL X-Google-Smtp-Source: ABdhPJxqZIyLyb2GCKV1AwEY4i18NOKnl8EziN7c1CJrRf52GnzfgmaxpkDY00mNnhUSIeev2Hfg4nqSERwqf/mhBGnmraIIITRW MIME-Version: 1.0 X-Received: by 2002:a05:6e02:17ca:: with SMTP id z10mr4904868ilu.249.1633246448379; Sun, 03 Oct 2021 00:34:08 -0700 (PDT) Date: Sun, 03 Oct 2021 00:34:08 -0700 In-Reply-To: <0000000000000d4da305cb1d2467@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000062ec7d05cd6dd2f6@google.com> Subject: Re: [syzbot] BUG: unable to handle kernel NULL pointer dereference in kiocb_done From: syzbot To: asml.silence@gmail.com, axboe@kernel.dk, 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 suspects this issue was fixed by commit: commit b8ce1b9d25ccf81e1bbabd45b963ed98b2222df8 Author: Pavel Begunkov Date: Tue Aug 31 13:13:11 2021 +0000 io_uring: don't submit half-prepared drain request bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17b14b67300000 start commit: 4ac6d90867a4 Merge tag 'docs-5.15' of git://git.lwn.net/li.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=3c3a5498e99259cf dashboard link: https://syzkaller.appspot.com/bug?extid=726f2ce6dbbf2ad8d133 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=124a3b49300000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=142e610b300000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: io_uring: don't submit half-prepared drain request For information about bisection process see: https://goo.gl/tpsmEJ#bisection