Re: [syzbot] WARNING in io_uring_setup (2)

Pavel Begunkov
2021-04-29T17:56:13Z

On 4/29/21 6:46 PM, syzbot wrote:
> syzbot has bisected this issue to:
>
> commit eae071c9b4cefbcc3f985c5abf9a6e32c1608ca9
> Author: Pavel Begunkov <asml.silence@gmail.com>
> Date: Sun Apr 25 13:32:24 2021 +0000
>
> io_uring: prepare fixed rw for dynanic buffers
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13f639edd00000
> start commit: d72cd4ad Merge tag 'scsi-misc' of git://git.kernel.org/pub..
> git tree: upstream
> final oops: https://syzkaller.appspot.com/x/report.txt?x=100e39edd00000
> console output: https://syzkaller.appspot.com/x/log.txt?x=17f639edd00000
> kernel config: https://syzkaller.appspot.com/x/.config?x=53fdf14defd48c56
> dashboard link: https://syzkaller.appspot.com/bug?extid=1eca5b0d7ac82b74d347
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15aeff43d00000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1747117dd00000
>
> Reported-by: syzbot+1eca5b0d7ac82b74d347@syzkaller.appspotmail.com
> Fixes: eae071c9b4ce ("io_uring: prepare fixed rw for dynanic buffers")
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection

#syz test: git://git.kernel.dk/linux-block io_uring-5.13

--
Pavel Begunkov