Index: /trunk/src/VBox/VMM/VMMR3/PDMBlkCache.cpp
===================================================================
--- /trunk/src/VBox/VMM/VMMR3/PDMBlkCache.cpp	(revision 55185)
+++ /trunk/src/VBox/VMM/VMMR3/PDMBlkCache.cpp	(revision 55186)
@@ -1914,6 +1914,4 @@
         if (fCallHandler)
             pdmBlkCacheReqComplete(pBlkCache, pReq);
-        else
-            RTMemFree(pReq);
         return true;
     }
@@ -2133,4 +2131,9 @@
     if (!pdmBlkCacheReqUpdate(pBlkCache, pReq, rc, false))
         rc = VINF_AIO_TASK_PENDING;
+    else
+    {
+        rc = pReq->rcReq;
+        RTMemFree(pReq);
+    }
 
     LogFlowFunc((": Leave rc=%Rrc\n", rc));
@@ -2361,4 +2364,9 @@
     if (!pdmBlkCacheReqUpdate(pBlkCache, pReq, rc, false))
         rc = VINF_AIO_TASK_PENDING;
+    else
+    {
+        rc = pReq->rcReq;
+        RTMemFree(pReq);
+    }
 
     LogFlowFunc((": Leave rc=%Rrc\n", rc));
@@ -2537,4 +2545,9 @@
     if (!pdmBlkCacheReqUpdate(pBlkCache, pReq, rc, false))
         rc = VINF_AIO_TASK_PENDING;
+    else
+    {
+        rc = pReq->rcReq;
+        RTMemFree(pReq);
+    }
 
     LogFlowFunc((": Leave rc=%Rrc\n", rc));