Hi Greg,
I want to merge this change into v6.1.52 stable kernel version.
I have added these details in my patch subject message. Sorry for inconvenience.
Thanks & Regards, Deepak -----Original Message----- From: Greg KH gregkh@linuxfoundation.org Sent: Thursday, September 7, 2023 3:47 PM To: Deepak Rathore -X (deeratho - E-INFO CHIPS INC at Cisco) deeratho@cisco.com Cc: stable@vger.kernel.org; linux-kernel@vger.kernel.org Subject: Re: [v6.1.52][PATCH] Bluetooth: btsdio: fix use after free bug in btsdio_remove due to race condition
On Wed, Sep 06, 2023 at 05:45:25PM +0530, Deepak Rathore wrote:
From: Zheng Wang zyytlz.wz@163.com
[ Upstream commit 73f7b171b7c09139eb3c6a5677c200dc1be5f318 ]
In btsdio_probe, the data->work is bound with btsdio_work. It will be started in btsdio_send_frame.
If the btsdio_remove runs with a unfinished work, there may be a race condition that hdev is freed but used in btsdio_work. Fix it by canceling the work before do cleanup in btsdio_remove.
Signed-off-by: Zheng Wang zyytlz.wz@163.com Signed-off-by: Luiz Augusto von Dentz luiz.von.dentz@intel.com Signed-off-by: Deepak Rathore deeratho@cisco.com
What tree(s) are you wanting this applied to?
thanks,
greg k-h