linux-kernel - Re: [PATCH v3 1/2] ath9k: fix use-after-free in ath9k_hif_usb_rx

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Date:   Wed, 11 May 2022 12:59:15 +0300
From:   Kalle Valo <kvalo@...nel.org>
To:     Toke Høiland-Jørgensen <toke@...e.dk>
Cc:     Pavel Skripkin <paskripkin@...il.com>,
        Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>,
        ath9k-devel@....qualcomm.com, davem@...emloft.net, kuba@...nel.org,
        linville@...driver.com, linux-wireless@...r.kernel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        syzbot+03110230a11411024147@...kaller.appspotmail.com,
        syzbot+c6dde1f690b60e0b9fbe@...kaller.appspotmail.com
Subject: Re: [PATCH v3 1/2] ath9k: fix use-after-free in ath9k_hif_usb_rx_cb

Toke Høiland-Jørgensen <toke@...e.dk> writes:

> Kalle Valo <kvalo@...nel.org> writes:
>
>> Pavel Skripkin <paskripkin@...il.com> writes:
>>
>>> Hi Tetsuo,
>>>
>>> On 5/6/22 02:31, Tetsuo Handa wrote:
>>>> On 2022/05/06 4:09, Pavel Skripkin wrote:
>>>>>>> And we can meet NULL defer even if we leave drv_priv = priv initialization
>>>>>>> on it's place.
>>>>>>
>>>>>> I didn't catch the location. As long as "htc_handle->drv_priv = priv;" is done
>>>>>> before complete_all(&hif_dev->fw_done) is done, is something wrong?
>>>>>>
>>>>>
>>>>> I don't really remember why I said that, but looks like I just
>>>>> haven't opened callbacks' code.
>>>>
>>>> OK. Then, why not accept Pavel's patch?
>>>
>>> As you might expect, I have same question. This series is under review
>>> for like 7-8 months.
>>>
>>> I have no ath9 device, so I can't test it on real hw, so somebody else
>>> should do it for me. It's requirement to get patch accepted.
>>
>> As Toke stepped up to be the ath9k maintainer the situation with ath9k
>> is now much better. I recommend resubmitting any ath9k patches you might
>> have.
>
> No need to resubmit this one, it's still in patchwork waiting for me to
> take a closer look.

Ah sorry, I thought this was something which was submitted 7-8 months
ago but I didn't check, I should have.

> I have a conference this week, but should hopefully have some time for
> this next week.

It's great to be able to start meeting people again, have a good one :)

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