[NTOS:OB]

- Create kernel handles if requested by the caller in ObDuplicateObject
CORE-10207

svn path=/trunk/; revision=69571

reactos/ntoskrnl/ob/obhandle.c

@@ -2150,6 +2150,8 @@ ObDuplicateObject(IN PEPROCESS SourceProcess,
     PHANDLE_TABLE HandleTable;
     OBJECT_HANDLE_INFORMATION HandleInformation;
     ULONG AuditMask;
+    BOOLEAN KernelHandle = FALSE;
+
     PAGED_CODE();
     OBTRACE(OB_HANDLE_DEBUG,
             "%s - Duplicating handle: %p for %p into %p\n",
@@ -2222,6 +2224,14 @@ ObDuplicateObject(IN PEPROCESS SourceProcess,
         return Status;
     }
 
+    /* Create a kernel handle if asked, but only in the system process */
+    if (PreviousMode == KernelMode &&
+        HandleAttributes & OBJ_KERNEL_HANDLE &&
+        TargetProcess == PsInitialSystemProcess)
+    {
+        KernelHandle = TRUE;
+    }
+
     /* Get the target handle table */
     HandleTable = ObReferenceProcessHandleTable(TargetProcess);
     if (!HandleTable)
@@ -2376,6 +2386,12 @@ ObDuplicateObject(IN PEPROCESS SourceProcess,
         Status = STATUS_INSUFFICIENT_RESOURCES;
     }
 
+    /* Mark it as a kernel handle if requested */
+    if (KernelHandle)
+    {
+        NewHandle = ObMarkHandleAsKernelHandle(NewHandle);
+    }
+
     /* Return the handle */
     if (TargetHandle) *TargetHandle = NewHandle;