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From:   Aleksandr Nogikh <nogikh@google.com>
Date:   Fri, 31 Mar 2023 17:48:54 +0200
Message-ID: <CANp29Y4gA0D=O5CL3bxhYjT3mYtifXU-J-SXBiOTxfpYsfvTdw@mail.gmail.com>
Subject: Re: [syzbot] [block?] KASAN: use-after-free Read in netdev_core_pick_tx
To:     syzbot <syzbot+10a7a8ca6e94600110ec@syzkaller.appspotmail.com>
Cc:     axboe@kernel.dk, gakula@marvell.com, hdanton@sina.com,
        jiasheng@iscas.ac.cn, justin@coraid.com, kuba@kernel.org,
        linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
        michal.swiatkowski@linux.intel.com, syzkaller-bugs@googlegroups.com
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On Fri, Mar 31, 2023 at 5:42=E2=80=AFPM syzbot
<syzbot+10a7a8ca6e94600110ec@syzkaller.appspotmail.com> wrote:
>
> syzbot suspects this issue was fixed by commit:
>
> commit f038f3917baf04835ba2b7bcf2a04ac93fbf8a9c
> Author: Jiasheng Jiang <jiasheng@iscas.ac.cn>
> Date:   Fri Mar 17 06:43:37 2023 +0000
>
>     octeontx2-vf: Add missing free for alloc_percpu
>
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=3D133a3d2ec8=
0000
> start commit:   42226c989789 Linux 5.18-rc7
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=3Dd84df8e1a4c4d=
5a4
> dashboard link: https://syzkaller.appspot.com/bug?extid=3D10a7a8ca6e94600=
110ec
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=3D11ed1369f00=
000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=3D166b22cef0000=
0
>
> If the result looks correct, please mark the issue as fixed by replying w=
ith:

No, the commit is unfortunately unrelated.

>
> #syz fix: octeontx2-vf: Add missing free for alloc_percpu
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisect=
ion
>
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