Messages in this thread | | | Date | Mon, 13 Jan 2020 19:25:46 +0100 | From | Greg KH <> | Subject | Re: [PATCH] USB: serial: opticon: fix control-message timeouts |
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On Mon, Jan 13, 2020 at 06:22:13PM +0100, Johan Hovold wrote: > The driver was issuing synchronous uninterruptible control requests > without using a timeout. This could lead to the driver hanging > on open() or tiocmset() due to a malfunctioning (or malicious) device > until the device is physically disconnected. > > The USB upper limit of five seconds per request should be more than > enough. > > Fixes: 309a057932ab ("USB: opticon: add rts and cts support") > Cc: stable <stable@vger.kernel.org> # 2.6.39 > Cc: Martin Jansen <martin.jansen@opticon.com> > Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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