Index: ntoskrnl/mm/ARM3/vadnode.c
===================================================================
--- ntoskrnl/mm/ARM3/vadnode.c  (révision 70478)
+++ ntoskrnl/mm/ARM3/vadnode.c  (copie de travail)
@@ -285,9 +285,36 @@
                                            &Parent);
         if (Result == TableFoundNode)
         {
-            DPRINT1("Given address conflicts with existing node\n");
-            KeReleaseGuardedMutex(&CurrentProcess->AddressCreationLock);
-            return STATUS_CONFLICTING_ADDRESSES;
+           PMMVAD Bit;
+           CurrentThread = PsGetCurrentThread();
+           MiLockProcessWorkingSetUnsafe(CurrentProcess, CurrentThread);
+           Bit = MiLocateAddress((void*)StartingAddress);
+           if ((Bit->EndingVpn == EndingAddress >> PAGE_SHIFT) && (Bit->StartingVpn == StartingAddress >> PAGE_SHIFT)) {
+               DPRINT1("Return already allocated VAD\n");
+               Vad = Bit;
+               MiUnlockProcessWorkingSetUnsafe(CurrentProcess, CurrentThread);
+               KeReleaseGuardedMutex(&CurrentProcess->AddressCreationLock);
+               return STATUS_SUCCESS;
+           }
+           else if (Bit->StartingVpn == StartingAddress >> PAGE_SHIFT){
+               DPRINT1("Extend memory zone\n");
+               Vad->StartingVpn = Bit->EndingVpn;
+               Vad->EndingVpn = EndingAddress >> PAGE_SHIFT;
+               ((PMMVAD_LONG)Vad)->u3.Secured.StartVpn = Vad->StartingVpn;
+               ((PMMVAD_LONG)Vad)->u3.Secured.EndVpn = Vad->EndingVpn;
+               StartingAddress= Vad->StartingVpn << PAGE_SHIFT;
+               EndingAddress = Vad->EndingVpn << PAGE_SHIFT;
+               MiInsertVad(Vad, &CurrentProcess->VadRoot);
+               MiUnlockProcessWorkingSetUnsafe(CurrentProcess, CurrentThread);
+               KeReleaseGuardedMutex(&CurrentProcess->AddressCreationLock);
+               return STATUS_SUCCESS;
+           }
+           else {
+                DPRINT1("Given address conflicts with existing node\n");
+                MiUnlockProcessWorkingSetUnsafe(CurrentProcess, CurrentThread);
+                KeReleaseGuardedMutex(&CurrentProcess->AddressCreationLock);
+                return STATUS_CONFLICTING_ADDRESSES;
+           }
         }
     }

@@ -864,7 +891,6 @@
             }
         }
     }
-
     /* All good, allow the change */
     return STATUS_SUCCESS;
 }