linux-kernel - Re: [syzbot] [io-uring?] KASAN: use-after-free Read in io_wqe

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Message-ID: <CANp29Y5Gfo8ZOGxtrM7DoZU+SwgXK1Nq79dsqh=bKL+B3M_EAw@mail.gmail.com>
Date:   Wed, 15 Mar 2023 13:20:43 +0100
From:   Aleksandr Nogikh <nogikh@...gle.com>
To:     syzbot <syzbot+ad53b671c30ddaba634d@...kaller.appspotmail.com>
Cc:     asml.silence@...il.com, axboe@...nel.dk, hayeswang@...ltek.com,
        io-uring@...r.kernel.org, kuba@...nel.org,
        linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [io-uring?] KASAN: use-after-free Read in io_wqe_worker (2)

On Sat, Mar 11, 2023 at 4:15 PM syzbot
<syzbot+ad53b671c30ddaba634d@...kaller.appspotmail.com> wrote:
>
> syzbot suspects this issue was fixed by commit:
>
> commit 02767440e1dda9861a11ca1dbe0f19a760b1d5c2
> Author: Hayes Wang <hayeswang@...ltek.com>
> Date:   Thu Jan 19 07:40:43 2023 +0000
>
>     r8152: reduce the control transfer of rtl8152_get_version()
>
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=13284762c80000
> start commit:   9b43a525db12 Merge tag 'nfs-for-6.2-2' of git://git.linux-..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=ff5cf657dd0e7643
> dashboard link: https://syzkaller.appspot.com/bug?extid=ad53b671c30ddaba634d
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=160480ba480000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=14cddc6a480000
>
> If the result looks correct, please mark the issue as fixed by replying with:

The fix looks unrelated.

>
> #syz fix: r8152: reduce the control transfer of rtl8152_get_version()
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection
>