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From:   Kalle Valo <kvalo@kernel.org>
To:     Toke =?utf-8?Q?H=C3=B8iland-J=C3=B8rgensen?= <toke@toke.dk>
Cc:     Alexander Potapenko <glider@google.com>,
        Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>,
        phil@philpotter.co.uk, ath9k-devel@qca.qualcomm.com,
        David Miller <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>,
        LKML <linux-kernel@vger.kernel.org>,
        linux-wireless <linux-wireless@vger.kernel.org>,
        Networking <netdev@vger.kernel.org>,
        syzkaller-bugs <syzkaller-bugs@googlegroups.com>
Subject: Re: KMSAN: uninit-value in ath9k_htc_rx_msg
References: <000000000000c98a7f05ac744f53@google.com>
        <000000000000734fe705acb9f3a2@google.com>
        <a142d63c-7810-40ff-9c24-7160c63bafebn@googlegroups.com>
        <CAG_fn=U=Vfv3ymNM6W++sbivieQoUuXfAxsC9SsmdtQiTjSi8g@mail.gmail.com>
        <1a0b4d24-6903-464f-7af0-65c9788545af@I-love.SAKURA.ne.jp>
        <CAG_fn=Wq51FMbty4c_RwjBSFWS1oceL1rOAUzCyRnGEzajQRAg@mail.gmail.com>
        <878rnc8ghv.fsf@toke.dk>
Date:   Mon, 29 Aug 2022 08:36:57 +0300
In-Reply-To: <878rnc8ghv.fsf@toke.dk> ("Toke \=\?utf-8\?Q\?H\=C3\=B8iland-J\?\=
 \=\?utf-8\?Q\?\=C3\=B8rgensen\=22's\?\= message of
        "Thu, 25 Aug 2022 17:55:40 +0200")
Message-ID: <87a67nhapy.fsf@kernel.org>
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Toke H=C3=B8iland-J=C3=B8rgensen <toke@toke.dk> writes:

> Alexander Potapenko <glider@google.com> writes:
>
>> On Thu, Aug 25, 2022 at 4:34 PM Tetsuo Handa
>> <penguin-kernel@i-love.sakura.ne.jp> wrote:
>>>
>>> Hello.
>> Hi Tetsuo,
>>
>>> I found that your patch was applied. But since the reproducer tested on=
ly 0 byte
>>> case, I think that rejecting only less than sizeof(struct htc_frame_hdr=
) bytes
>>> is not sufficient.
>>>
>>> More complete patch with Ack from Toke is waiting at
>>> https://lkml.kernel.org/r/7acfa1be-4b5c-b2ce-de43-95b0593fb3e5@I-love.S=
AKURA.ne.jp .
>>
>> Thanks for letting me know! I just checked that your patch indeed
>> fixes the issue I am facing.
>> If it is more complete, I think we'd indeed better use yours.
>
> FWIW, that patch is just waiting for Kalle to apply it, and I just
> noticed this whole thread has used his old email address, so updating
> that now as a gentle ping :)

I was on vacation but back now, I'll start processing patches soon.

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