[NTOSKRNL] On device map freeing, make directory object temporary again

diff --git a/ntoskrnl/ob/devicemap.c b/ntoskrnl/ob/devicemap.c
index 8cda474..dd501f1 100644 (file)
--- a/ntoskrnl/ob/devicemap.c
+++ b/ntoskrnl/ob/devicemap.c
@@ -189,7 +189,8 @@ ObfDereferenceDeviceMap(IN PDEVICE_MAP DeviceMap)
     KeReleaseGuardedMutex(&ObpDeviceMapLock);
 
     /* Dereference the DOS Devices Directory and free the Device Map */
     KeReleaseGuardedMutex(&ObpDeviceMapLock);
 
     /* Dereference the DOS Devices Directory and free the Device Map */

-    ObDereferenceObject(DeviceMap->DosDevicesDirectory );
+    ObMakeTemporaryObject(DeviceMap->DosDevicesDirectory);
+    ObDereferenceObject(DeviceMap->DosDevicesDirectory);

     ExFreePoolWithTag(DeviceMap, 'mDbO');
 }
 
     ExFreePoolWithTag(DeviceMap, 'mDbO');
 }