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From: Helge Deller <deller@gmx.de>
To: Hyunwoo Kim <imv4bel@gmail.com>, steve.glendinning@shawell.net
Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org
Subject: Re: [PATCH v3] video: fbdev: smscufx: Fix use-after-free in ufx_ops_open()
Date: Sun, 25 Sep 2022 17:47:27 +0200	[thread overview]
Message-ID: <37915429-7b4d-6e64-8ef7-a28bf8015fd5@gmx.de> (raw)
In-Reply-To: <20220925133243.GA383897@ubuntu>

On 9/25/22 15:32, Hyunwoo Kim wrote:
> A race condition may occur if the user physically removes the
> USB device while calling open() for this device node.
>
> This is a race condition between the ufx_ops_open() function and
> the ufx_usb_disconnect() function, which may eventually result in UAF.
>
> So, add a mutex to the ufx_ops_open() and ufx_usb_disconnect() functions
> to avoid race contidion of krefs.
>
> Signed-off-by: Hyunwoo Kim <imv4bel@gmail.com>

applied.

Thanks!
Helge

  reply	other threads:[~2022-09-25 15:47 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-25 13:32 [PATCH v3] video: fbdev: smscufx: Fix use-after-free in ufx_ops_open() Hyunwoo Kim
2022-09-25 15:47 ` Helge Deller [this message]
2022-09-26  4:50   ` Hyunwoo Kim

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