When a loadparm is presented by the user it's not checked whether it's
too large. Add this missing check to fix an out-of-bounds read.
The problem did not show up because the area behind the buffer is empty.
Reviewed-by: Steffen Eiden <seiden@linux.ibm.com>
Reviewed-by: Eduard Shishkin <edward6@linux.ibm.com>
Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Signed-off-by: Steffen Eiden <seiden@linux.ibm.com>