From: Lin Ming <ming.m.lin@intel.com>
Date: Thu, 28 Feb 2008 23:38:54 +0000 (+0800)
Subject: ACPI: fix boot oops regression in thermal
X-Git-Tag: v2.6.25-rc6~19^2~4^6
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c8d16e27a3601d1cbcdfe657eb4ff5e762019e8d;p=linux-2.6

ACPI: fix boot oops regression in thermal

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

http://bugzilla.kernel.org/show_bug.cgi?id=10132

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
---

diff --git a/drivers/acpi/utilities/utobject.c b/drivers/acpi/utilities/utobject.c
index 76ee766c84..e08b3fa663 100644
--- a/drivers/acpi/utilities/utobject.c
+++ b/drivers/acpi/utilities/utobject.c
@@ -432,7 +432,7 @@ acpi_ut_get_simple_object_size(union acpi_operand_object *internal_object,
 	 * element -- which is legal)
 	 */
 	if (!internal_object) {
-		*obj_length = 0;
+		*obj_length = sizeof(union acpi_object);
 		return_ACPI_STATUS(AE_OK);
 	}