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([2600:380:7567:4da9:ea68:953f:1224:2896]) by smtp.gmail.com with ESMTPSA id w17sm238691pfq.111.2021.09.03.13.38.30 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 03 Sep 2021 13:38:31 -0700 (PDT) Subject: Re: [syzbot] BUG: unable to handle kernel NULL pointer dereference in kiocb_done To: syzbot , asml.silence@gmail.com, io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com References: <0000000000000d4da305cb1d2467@google.com> From: Jens Axboe Message-ID: <5a93ff90-98be-b5af-29e9-a2f8cca82458@kernel.dk> Date: Fri, 3 Sep 2021 14:38:28 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <0000000000000d4da305cb1d2467@google.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 9/3/21 2:28 PM, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: 4ac6d90867a4 Merge tag 'docs-5.15' of git://git.lwn.net/li.. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=13a275f5300000 > kernel config: https://syzkaller.appspot.com/x/.config?x=3c3a5498e99259cf > 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 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=124a3b49300000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=142e610b300000 #syz test git://git.kernel.dk/linux-block for-5.15/io_uring -- Jens Axboe