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From: Javier Carrasco <javier.carrasco.cruz@gmail.com>
To: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Input: powermate - fix use-after-free in powermate_config_complete
Date: Sun, 1 Oct 2023 11:11:13 +0200	[thread overview]
Message-ID: <710ed88d-462b-17ed-ae4d-906ddd0dee8a@gmail.com> (raw)
In-Reply-To: <ZQjKwQDKmU8L9C9e@google.com>

Hi Dmitry,

On 19.09.23 00:10, Dmitry Torokhov wrote:
> On Mon, Sep 18, 2023 at 06:51:49AM +0200, Javier Carrasco Cruz wrote:
>> Hi,
>>
>> There's an obvious error in the patch I introduced when cleaningup
>> (urb->status should be used instead of just status). I will send a v2.
> 
> I think what we need is call to usb_kill_urb(pm->config) in
> powermate_disconnect(), right after call to input_unregister_device().
> 
> Thanks.
> That is definitely a more meaningful and elegant solution, so I will
check it out and eventually send a v2 with it if everything seems ok. On
the other hand usb_kill_urb() is already used on pm->irq before calling
input_unregister_device(), so I would move the existing usb_kill_urb to
have both calls right after the unregister_device call for code
consistency, if that is alright.

Thanks and best regards.

  reply	other threads:[~2023-10-01  9:11 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-09-16 21:28 [PATCH] Input: powermate - fix use-after-free in powermate_config_complete Javier Carrasco
     [not found] ` <CAPnbTwKqNghcoPj-FGQQxo0xr-AYTm8pYBYCUgyKT6VxZpZCOA@mail.gmail.com>
2023-09-18 22:10   ` Dmitry Torokhov
2023-10-01  9:11     ` Javier Carrasco [this message]
2023-09-20 18:35 ` kernel test robot

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