Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
MIME-Version: 1.0
References: <000000000000b35ea205ffc35fe1@google.com> <000000000000efbc2306024b74cf@google.com>
 <CANp29Y6ow1PS1NaiX-aSpRqGJQv0bE2QhzCBuhO-vEJa8RgjAw@mail.gmail.com>
In-Reply-To: <CANp29Y6ow1PS1NaiX-aSpRqGJQv0bE2QhzCBuhO-vEJa8RgjAw@mail.gmail.com>
From:   Aleksandr Nogikh <nogikh@google.com>
Date:   Fri, 11 Aug 2023 14:10:02 +0200
Message-ID: <CANp29Y6LeRCG=6p7OsJa3TCoVvuMeomMiAtC7=ZvyUPoJV3T_g@mail.gmail.com>
Subject: Re: [syzbot] [mm?] kernel BUG in validate_mm (2)
To:     syzbot <syzbot+70b97abe3e253d1c3f8e@syzkaller.appspotmail.com>
Cc:     akpm@linux-foundation.org, jonathan.cameron@huawei.com,
        krzysztof.kozlowski@linaro.org, linux-kernel@vger.kernel.org,
        linux-mm@kvack.org, luca@z3ntu.xyz, syzkaller-bugs@googlegroups.com
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
Precedence: bulk

#syz fix: mm: validate the mm before dropping the mmap lock

On Mon, Aug 7, 2023 at 2:11=E2=80=AFPM Aleksandr Nogikh <nogikh@google.com>=
 wrote:
>
> On Mon, Aug 7, 2023 at 3:49=E2=80=AFAM syzbot
> <syzbot+70b97abe3e253d1c3f8e@syzkaller.appspotmail.com> wrote:
> >
> > syzbot suspects this issue was fixed by commit:
> >
> > commit ef513aa7aa5038d2f53e9f2932af5006f37ed0b6
> > Author: Luca Weiss <luca@z3ntu.xyz>
> > Date:   Thu Apr 13 23:17:49 2023 +0000
> >
> >     dt-bindings: iio: adc: qcom,spmi-vadc: Allow 1/16 for pre-scaling
> >
> > bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=3D11aeb085=
a80000
> > start commit:   a901a3568fd2 Merge tag 'iomap-6.5-merge-1' of git://git=
.ke..
> > git tree:       upstream
> > kernel config:  https://syzkaller.appspot.com/x/.config?x=3Df5e1158c5b2=
f83bb
> > dashboard link: https://syzkaller.appspot.com/bug?extid=3D70b97abe3e253=
d1c3f8e
> > syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=3D1511d490a=
80000
> > C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=3D130e5cfb280=
000
> >
> > If the result looks correct, please mark the issue as fixed by replying=
 with:
> >
> > #syz fix: dt-bindings: iio: adc: qcom,spmi-vadc: Allow 1/16 for pre-sca=
ling
>
> No, that's wrong. Please ignore the email.
>
> >
> > For information about bisection process see: https://goo.gl/tpsmEJ#bise=
ction
> >