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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 78C7AC433F5 for ; Tue, 17 May 2022 19:02:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1352449AbiEQTCM (ORCPT ); Tue, 17 May 2022 15:02:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33768 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1352396AbiEQTCL (ORCPT ); Tue, 17 May 2022 15:02:11 -0400 Received: from mail-il1-f199.google.com (mail-il1-f199.google.com [209.85.166.199]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 95FD43F30C for ; Tue, 17 May 2022 12:02:10 -0700 (PDT) Received: by mail-il1-f199.google.com with SMTP id q6-20020a056e0215c600b002c2c4091914so9975682ilu.14 for ; Tue, 17 May 2022 12:02:10 -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=trJlUoBsAU0Gfja7NVm8U0mdQqxyIpgiYU5DZakIhBI=; b=xcucdOjDbIntFVQ90Omn1JuoWEed82stwcX0759c9PyfCYs8KB3MuxhcEkzzoa8HN6 ZBLgZOSxyEtGHxs1pDV2AxQ5RpTKUpKCuWQyWfi8Wpaefdk8+av5b1KECbPieA8RB7oq 0yn/SmqOuHMKR70p4ce/YZii/Z9rXzoBPhee2VeFNu6UzI6LwboAWHJPRoM5hKNWtZ2L ss7/N1Vs1pR5a0y7QML7nST1MqVIt9RPil4aVWTqrpaGoEUt0NEVj3PYhO03A/NQUR96 HHFIX31+MAW2O9SXPzeDyx8YfkGu5+Nwhxlf4lBDGaVYYoCxbl/J8Zykt5/nDu12gvID Z2lQ== X-Gm-Message-State: AOAM532iSLNYHAFnvbVzFc+or5uPCx75BvSFeZLE9uY3/wnUwYbiCu3r YE0jzT+hX1JL5fzGAYyfDsYNxEMowGMyqyPjbwH2H4IGByMf X-Google-Smtp-Source: ABdhPJzi+HvE6EnVZG74GdN+JteT30NG17qd1T8Fck4gK/b02ljT7Ivc1HOnroXCMXiZvdak88P7i4HRbU5ddf6lP8jLjD9XV1eY MIME-Version: 1.0 X-Received: by 2002:a05:6638:d13:b0:32b:cf94:275b with SMTP id q19-20020a0566380d1300b0032bcf94275bmr13195448jaj.22.1652814130055; Tue, 17 May 2022 12:02:10 -0700 (PDT) Date: Tue, 17 May 2022 12:02:10 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000001a0dba05df39c7d3@google.com> Subject: Re: [syzbot] BUG: unable to handle kernel NULL pointer dereference in io_do_iopoll 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: io-uring@vger.kernel.org Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-and-tested-by: syzbot+1a0a53300ce782f8b3ad@syzkaller.appspotmail.com Tested on: commit: aa184e86 io_uring: don't attempt to IOPOLL for MSG_RIN.. git tree: git://git.kernel.dk/linux-block io_uring-5.18 kernel config: https://syzkaller.appspot.com/x/.config?x=e408a5da421f07d4 dashboard link: https://syzkaller.appspot.com/bug?extid=1a0a53300ce782f8b3ad compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Note: no patches were applied. Note: testing is done by a robot and is best-effort only.