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Mon, 25 Nov 2024 15:09:22 -0800 (PST) Message-ID: <4db729f9-eece-4732-8d6d-405a997ed35c@gmail.com> Date: Mon, 25 Nov 2024 23:10:10 +0000 Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [syzbot] [io-uring?] WARNING in io_pin_pages From: Pavel Begunkov To: syzbot , axboe@kernel.dk, io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com References: <67406232.050a0220.3c9d61.018e.GAE@google.com> Content-Language: en-US In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 11/22/24 15:02, Pavel Begunkov wrote: > On 11/22/24 10:51, syzbot wrote: >> Hello, >> >> syzbot found the following issue on: >> >> HEAD commit:    ae58226b89ac Add linux-next specific files for 20241118 >> git tree:       linux-next >> console+strace: https://syzkaller.appspot.com/x/log.txt?x=14a67378580000 >> kernel config:  https://syzkaller.appspot.com/x/.config?x=45719eec4c74e6ba >> dashboard link: https://syzkaller.appspot.com/bug?extid=2159cbb522b02847c053 >> compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 >> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=137beac0580000 >> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=177beac0580000 >> >> Downloadable assets: >> disk image: https://storage.googleapis.com/syzbot-assets/fd3d650cd6b6/disk-ae58226b.raw.xz >> vmlinux: https://storage.googleapis.com/syzbot-assets/89a0fb674130/vmlinux-ae58226b.xz >> kernel image: https://storage.googleapis.com/syzbot-assets/92120e1c6775/bzImage-ae58226b.xz >> >> The issue was bisected to: >> >> commit 68685fa20edc5307fc893a06473c19661c236f29 >> Author: Pavel Begunkov >> Date:   Fri Nov 15 16:54:38 2024 +0000 >> >>      io_uring: fortify io_pin_pages with a warning > > Seems I wasn't too paranoid. I'll send a fix #syz test: https://github.com/isilence/linux.git syz/sanitise-cqsq -- Pavel Begunkov