Re: [PATCH] USB: serial: cyberjack: fix write-URB completion race

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On Mon, Oct 26, 2020 at 09:25:48AM +0100, Johan Hovold wrote:
> The write-URB busy flag was being cleared before the completion handler
> was done with the URB, something which could lead to corrupt transfers
> due to a racing write request if the URB is resubmitted.
> 
> Fixes: 507ca9bc0476 ("[PATCH] USB: add ability for usb-serial drivers to determine if their write urb is currently being used.")
> Cc: stable <stable@xxxxxxxxxxxxxxx>     # 2.6.13
> Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
> ---
>  drivers/usb/serial/cyberjack.c | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)

Reviewed-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>



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