vendor/acpica/20130214

1 files changed, 7 insertions, 0 deletions

diff --git a/source/components/resources/rscalc.c b/source/components/resources/rscalc.c
index 6136fc671b00..5c373ec9cde1 100644
--- a/source/components/resources/rscalc.c
+++ b/source/components/resources/rscalc.c
@@ -230,6 +230,13 @@ AcpiRsGetAmlLength (
             return_ACPI_STATUS (AE_AML_INVALID_RESOURCE_TYPE);
         }
 
+        /* Sanity check the length. It must not be zero, or we loop forever */
+
+        if (!Resource->Length)
+        {
+            return_ACPI_STATUS (AE_AML_BAD_RESOURCE_LENGTH);
+        }
+
         /* Get the base size of the (external stream) resource descriptor */
 
         TotalSize = AcpiGbl_AmlResourceSizes [Resource->Type];