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From:   Aleksandr Nogikh <nogikh@google.com>
Date:   Mon, 26 Jun 2023 19:55:47 +0200
Message-ID: <CANp29Y6eSpawFhDhv2SW78PKhvCSke8z26=MYNdSu8V4vPSoag@mail.gmail.com>
Subject: Re: [syzbot] [wireless?] [reiserfs?] general protection fault in __iterate_interfaces
To:     Johannes Berg <johannes@sipsolutions.net>
Cc:     syzbot <syzbot+1c54f0eff457978ad5f9@syzkaller.appspotmail.com>,
        davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
        linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-wireless@vger.kernel.org, netdev@vger.kernel.org,
        pabeni@redhat.com, reiserfs-devel@vger.kernel.org,
        syzkaller-bugs@googlegroups.com
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On Fri, Jun 23, 2023 at 1:08=E2=80=AFPM Johannes Berg <johannes@sipsolution=
s.net> wrote:
>
> On Thu, 2023-06-01 at 14:24 -0700, syzbot wrote:
> > Hello,
> >
> > syzbot found the following issue on:
> >
> > HEAD commit:    715abedee4cd Add linux-next specific files for 20230515
> > git tree:       linux-next
> > console output: https://syzkaller.appspot.com/x/log.txt?x=3D13c96725280=
000
> > kernel config:  https://syzkaller.appspot.com/x/.config?x=3D6a2745d066d=
da0ec
> > dashboard link: https://syzkaller.appspot.com/bug?extid=3D1c54f0eff4579=
78ad5f9
> > compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binu=
tils for Debian) 2.35.2
> > syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=3D1588e9992=
80000
> > C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=3D1013cbc1280=
000
> >
>
> Looking at the reproducers, there's basically nothing happening in wifi.
>
> So seems likely it's just some really bad memory corruption issue in
> reiserfs?

Looks like that indeed.

Let's update bug's subsystems on the syzbot dashboard:

#syz set subsystems: reiserfs

>
> johannes
>
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