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 05348C433FE for ; Tue, 17 May 2022 19:02:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1352465AbiEQTCN (ORCPT ); Tue, 17 May 2022 15:02:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33770 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345117AbiEQTCL (ORCPT ); Tue, 17 May 2022 15:02:11 -0400 Received: from mail-io1-f70.google.com (mail-io1-f70.google.com [209.85.166.70]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9A2A53F30D for ; Tue, 17 May 2022 12:02:10 -0700 (PDT) Received: by mail-io1-f70.google.com with SMTP id n5-20020a056602340500b0065a9f426e7aso13040122ioz.0 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=0zUtqd+nEynqrlcVtDjsniIKNj+8xLfTFJmjgBiKWTOHRjIPYHjN/x2cUxdMnViNgK j7HYH8hJ+Ad/vi4iOtC4zb+NedPcMO5MC5/OpxwBZDiQ7SvajGpwn1lgoWO5NgUy/Kjc AEWfob7McgftlZXSd3Q5b/kQVjBL/+BZinGuRWgigqe3lZazU09IJ+BeWlgQ27Kv4I8E xtDNQw2PNaaQe1jps6OEmpd1HM3JxKLeEQ12l7b00M6O8auceypmIZ0eMZaL2GoKR0lL vBm/eo6oKiEg70h49kLbPd0XB0rpgymKXfcUydIco9vrulHua2XbT0ywGmjcC3vc+Dce LXOw== X-Gm-Message-State: AOAM5310nZS2Lwa9bSFGdoIBF+NVk9WdMfYhfPCXIiouQ/ObCTv37/0J a3noq2vh9JxWwN6l2eFTYTxCy0fEjNwHX4YbOAsHklqQZXVU 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: linux-kernel@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.