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;
MIME-Version: 1.0
References: <00000000000053da9405bd7d2644@google.com>
In-Reply-To: <00000000000053da9405bd7d2644@google.com>
From:   Ming Lei <tom.leiming@gmail.com>
Date:   Mon, 22 Mar 2021 16:51:33 +0800
Message-ID: <CACVXFVO-6A_u-zNvkUt4x57gAwxJBDHx=Arc6KPKh560X3G29w@mail.gmail.com>
Subject: Re: [syzbot] KASAN: use-after-free Read in disk_part_iter_next (2)
To:     syzbot <syzbot+8fede7e30c7cee0de139@syzkaller.appspotmail.com>
Cc:     Jens Axboe <axboe@kernel.dk>,
        linux-block <linux-block@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        syzkaller-bugs@googlegroups.com
Content-Type: text/plain; charset="UTF-8"
Precedence: bulk

On Sun, Mar 14, 2021 at 7:10 PM syzbot
<syzbot+8fede7e30c7cee0de139@syzkaller.appspotmail.com> wrote:
>
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit:    280d542f Merge tag 'drm-fixes-2021-03-05' of git://anongit..
> git tree:       upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=15ade5aed00000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=952047a9dbff6a6a
> dashboard link: https://syzkaller.appspot.com/bug?extid=8fede7e30c7cee0de139
>
> Unfortunately, I don't have any reproducer for this issue yet.
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+8fede7e30c7cee0de139@syzkaller.appspotmail.com

#syz test: https://github.com/ming1/linux.git v5.12-block-test