Index: ntoskrnl/mm/section.c
===================================================================
--- ntoskrnl/mm/section.c	(revision 56695)
+++ ntoskrnl/mm/section.c	(working copy)
@@ -4105,7 +4105,7 @@
 
    ASSERT(Process);
 
-   AddressSpace = &Process->Vm;
+   AddressSpace = Process ? &Process->Vm : MmGetKernelAddressSpace();
 
    MmLockAddressSpace(AddressSpace);
    MemoryArea = MmLocateMemoryAreaByAddress(AddressSpace,