On Wed, Oct 28, 2020 at 10:38:27AM +0100, Greg Kroah-Hartman wrote:

On Mon, Oct 26, 2020 at 09:25:48AM +0100, Johan Hovold wrote:

quoted

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 <redacted>     # 2.6.13
Signed-off-by: Johan Hovold <johan@kernel.org>
---
 drivers/usb/serial/cyberjack.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Thanks, applied for 5.10-rc.

Johan