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From: Greg KH <gregkh@linuxfoundation.org>
To: Deepak Rathore <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
Date: Thu, 7 Sep 2023 11:16:51 +0100	[thread overview]
Message-ID: <2023090738-passive-snowless-3b9d@gregkh> (raw)
In-Reply-To: <20230906121525.3946250-1-deeratho@cisco.com>

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

  parent reply	other threads:[~2023-09-07 16:24 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-09-06 12:15 [v6.1.52][PATCH] Bluetooth: btsdio: fix use after free bug in btsdio_remove due to race condition Deepak Rathore
2023-09-06 12:20 ` kernel test robot
2023-09-07 10:16 ` Greg KH [this message]
2023-09-08  4:18   ` Deepak Rathore -X (deeratho - E-INFO CHIPS INC at Cisco)
2023-09-08  6:06     ` Deepak Rathore -X (deeratho - E-INFO CHIPS INC at Cisco)
2023-09-08  6:48       ` Greg KH
2023-09-08  6:54         ` Deepak Rathore -X (deeratho - E-INFO CHIPS INC at Cisco)
2023-09-08  7:08           ` Greg KH
2023-09-09  8:49             ` Deepak Rathore -X (deeratho - E-INFO CHIPS INC at Cisco)
2023-09-09 11:22               ` Salvatore Bonaccorso
2023-09-09 11:47               ` Greg KH
2023-09-10  6:25                 ` Deepak Rathore -X (deeratho - E-INFO CHIPS INC at Cisco)
2023-09-10  6:59                   ` Greg KH
2023-09-10 20:25 ` Greg KH
2023-09-11 13:17   ` Deepak Rathore -X (deeratho - E-INFO CHIPS INC at Cisco)
2023-09-11 13:23     ` Greg KH

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