linux-kernel - Re: [syzbot] WARNING in io_uring

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Message-ID: <8eec9ad4-3341-f136-0983-52f3c687f9da@gmail.com>
Date:   Thu, 29 Apr 2021 18:55:59 +0100
From:   Pavel Begunkov <asml.silence@...il.com>
To:     syzbot <syzbot+1eca5b0d7ac82b74d347@...kaller.appspotmail.com>,
        axboe@...nel.dk, io-uring@...r.kernel.org,
        linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] WARNING in io_uring_setup (2)

On 4/29/21 6:46 PM, syzbot wrote:
> syzbot has bisected this issue to:
> 
> commit eae071c9b4cefbcc3f985c5abf9a6e32c1608ca9
> Author: Pavel Begunkov <asml.silence@...il.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@...kaller.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