Index: section.c
===================================================================
--- ntoskrnl/mm/section.c	(revision 74432)
+++ ntoskrnl/mm/section.c	(working copy)
@@ -5161,6 +5161,8 @@
                                          MaximumSize,
                                          SectionPageProtection,
                                          AllocationAttributes);
+        if (FileObject)
+            ObDereferenceObject(FileObject);
     }
 
     return Status;