commit 9e276de6a3 upstream.
Consider a message size limit when calculating the maximum amount
of data that can be read.
The message size limit has been introduced with 4.9, so cc it
to stable.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>