From: Lin Ming <ming.m.lin@intel.com>

Fix a memory overflow bug when copying NULL internal package element object to
external.

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 drivers/acpi/utilities/utobject.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -puN drivers/acpi/utilities/utobject.c~acpi-fix-overflow drivers/acpi/utilities/utobject.c
--- a/drivers/acpi/utilities/utobject.c~acpi-fix-overflow
+++ a/drivers/acpi/utilities/utobject.c
@@ -432,7 +432,7 @@ acpi_ut_get_simple_object_size(union acp
 	 * element -- which is legal)
 	 */
 	if (!internal_object) {
-		*obj_length = 0;
+		*obj_length = sizeof(union acpi_object);
 		return_ACPI_STATUS(AE_OK);
 	}
 
_