Received: by 2002:a05:6a10:eb17:0:0:0:0 with SMTP id hx23csp899871pxb; Fri, 3 Sep 2021 16:43:47 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzUCdfP0MyKxiwYc6A3AH/41i1bfNjJGhi7g4Kx2EhTMEPKQl83IlHL/VXOwUzYS+EgJaba X-Received: by 2002:a05:6e02:184a:: with SMTP id b10mr1032438ilv.90.1630712627270; Fri, 03 Sep 2021 16:43:47 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1630712627; cv=none; d=google.com; s=arc-20160816; b=V87/spdwZ+U3oS5NrAOwxpELpkL4Gw4e5ozFM8Y0l7soNf+x7kgEUELg8czN9s7yvf sNFxjuYA90OP+kP8AGyDi5t8cp2wsYrhy+P5+BJ/ns5q0UM+kbTXvzr4fpAZkEMyrcoJ aK29l2kWhxzQs5dBvQWIPYf9wW2a+9G3tOtoGSQ4lLYGEUuNS52G9PhvwyowbVm8A7kf gHUsBy7x0Pyy4K+2S4YS17w98ave9VqP+H5NO54WnYLc1kDUZc9toH9ovBN/NCYqC7O2 ktufBE1AhFqup2GVJq5sQgPV4jcF+oEovCgo/7drRCNuEkSxHUCsl3ZQrFu+RK6/nAya A42g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:to:from:subject:message-id:in-reply-to:date :mime-version; bh=N5d093UwZv3h4qJ5IEJdxCx1t3C+wte7ngv0XxPDuyU=; b=VbpA1LDGuMUPt5TSsB3aTvhMshQSQcqFULGPL2H7aN0hCACk/cM/OHiparKeGZbmu/ zVXQDETZ1xhITUHbc0SZKKST1u6z35YASaCP/+Hy4UDDG1r/s3exfB3PwslbDua5uumW H8b2SEf/abt/jeDl9pBjqamY32vLMOdED/7lddECE6X4HmqAl8b92vLnLsFp8GBXja+V np/k9J/EuaWAyFHllukQ0qX58CHCQJoeoLFWl0cKY31i0/LDc9wOU44mo6ooNjMbn/Ca qybWB0ZeGa4SysGxt3io/YFrAeA3DmoSQ2xCnghEM+Zixe7CAXLyJXoiZUfi6k3Qu9p5 CiIg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id t124si742019jaa.105.2021.09.03.16.43.22; Fri, 03 Sep 2021 16:43:47 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S245474AbhICXJ3 (ORCPT + 99 others); Fri, 3 Sep 2021 19:09:29 -0400 Received: from mail-io1-f72.google.com ([209.85.166.72]:37853 "EHLO mail-io1-f72.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S245035AbhICXJK (ORCPT ); Fri, 3 Sep 2021 19:09:10 -0400 Received: by mail-io1-f72.google.com with SMTP id h3-20020a056602008300b005b7c0e23e11so390147iob.4 for ; Fri, 03 Sep 2021 16:08:10 -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=N5d093UwZv3h4qJ5IEJdxCx1t3C+wte7ngv0XxPDuyU=; b=TcP7xEqyH4ae+7gPyX2nTttjIuYgiLU39OQv6NAj6gRTZB5I7FF+biShIDIpygAy5J NJWFv+U6vPnU0g+EvtVT6gKLeHOQ+vUFnyUs6HuZfZ6r+e7Dp2rQI4Xof3stEZQfeNzF lNInDYWFNWFcL/68eZeikJDipHZwHg28aabpWT6nFV8j1J2PBpYvFAzMq58VxIbPnS1a kgTRT7pASNpJR8ehrXeiQL0McisC18bDFY6NwULLSGpm/n0KF2FxuPvw5osyuf2J4ygc I7fZuNXuQuLX89WP/WBBmz/TSE5SB/rUUEyi1kTZAPEhlxfWvEAxMcBQlniZ3sSVsfsC DCEg== X-Gm-Message-State: AOAM531QFKfj9Zs5wrVBUmAS02MgKd7fr4mENVhLs9dnh+EDwpCg5WRm eoQBhmLqJT+lvsFtu6wtb5LmuiK+H4s92ZqNHwi/3jwZ23Tq MIME-Version: 1.0 X-Received: by 2002:a05:6e02:198d:: with SMTP id g13mr902366ilf.319.1630710487901; Fri, 03 Sep 2021 16:08:07 -0700 (PDT) Date: Fri, 03 Sep 2021 16:08:07 -0700 In-Reply-To: <5a93ff90-98be-b5af-29e9-a2f8cca82458@kernel.dk> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000005ceb2c05cb1f5fad@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 Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-and-tested-by: syzbot+726f2ce6dbbf2ad8d133@syzkaller.appspotmail.com Tested on: commit: 31efe48e io_uring: fix possible poll event lost in mul.. git tree: git://git.kernel.dk/linux-block for-5.15/io_uring kernel config: https://syzkaller.appspot.com/x/.config?x=fa8e68781da309a dashboard link: https://syzkaller.appspot.com/bug?extid=726f2ce6dbbf2ad8d133 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.1 Note: testing is done by a robot and is best-effort only.