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From: Pavel Skripkin <paskripkin@gmail.com>
To: "Tetsuo Handa" <penguin-kernel@I-love.SAKURA.ne.jp>,
	"Toke Høiland-Jørgensen" <toke@toke.dk>,
	ath9k-devel@qca.qualcomm.com, kvalo@kernel.org,
	davem@davemloft.net, kuba@kernel.org, linville@tuxdriver.com
Cc: linux-wireless@vger.kernel.org, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	syzbot+03110230a11411024147@syzkaller.appspotmail.com,
	syzbot+c6dde1f690b60e0b9fbe@syzkaller.appspotmail.com
Subject: Re: [PATCH v3 1/2] ath9k: fix use-after-free in ath9k_hif_usb_rx_cb
Date: Thu, 5 May 2022 22:09:45 +0300	[thread overview]
Message-ID: <3cb712d9-c6be-94b7-6135-10b0eabba341@gmail.com> (raw)
In-Reply-To: <5fd22dda-01d6-cfae-3458-cb3fa23eb84d@I-love.SAKURA.ne.jp>


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Hi Tetsuo,

On 5/2/22 09:10, Tetsuo Handa 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.

My point was that my patch does not change the logic, but only fixes 2 
problems: UAF and NULL deref.




With regards,
Pavel Skripkin

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  reply	other threads:[~2022-05-05 19:09 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-02-07 20:24 [PATCH v3 1/2] ath9k: fix use-after-free in ath9k_hif_usb_rx_cb Pavel Skripkin
2022-02-07 20:24 ` [PATCH v3 2/2] ath9k: htc: clean up *STAT_* macros Pavel Skripkin
2022-02-07 21:24   ` Jeff Johnson
2022-02-08 15:32     ` Toke Høiland-Jørgensen
2022-02-08 15:49       ` Pavel Skripkin
2022-02-08 14:47 ` [PATCH v3 1/2] ath9k: fix use-after-free in ath9k_hif_usb_rx_cb Toke Høiland-Jørgensen
2022-02-08 15:48   ` Pavel Skripkin
2022-05-02  6:10     ` Tetsuo Handa
2022-05-05 19:09       ` Pavel Skripkin [this message]
2022-05-05 23:31         ` Tetsuo Handa
2022-05-10 19:26           ` Pavel Skripkin
2022-05-11  4:50             ` Kalle Valo
2022-05-11  9:53               ` Toke Høiland-Jørgensen
2022-05-11  9:59                 ` Kalle Valo
2022-05-12 12:49 ` Toke Høiland-Jørgensen
2022-05-12 12:55   ` Pavel Skripkin
2022-05-12 13:48     ` Toke Høiland-Jørgensen
2022-05-12 16:05 ` Jeff Johnson
2022-05-12 16:09   ` Pavel Skripkin

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