diff --git a/src/app/virtualbox/src/VBox/Devices/USB/VUSBUrb.cpp b/src/app/virtualbox/src/VBox/Devices/USB/VUSBUrb.cpp
index 86ed754..250f0ad 100644
--- a/src/app/virtualbox/src/VBox/Devices/USB/VUSBUrb.cpp
+++ b/src/app/virtualbox/src/VBox/Devices/USB/VUSBUrb.cpp
@@ -1271,7 +1271,7 @@ void vusbUrbDoReapAsync(PRTLISTANCHOR pUrbLst, RTMSINTERVAL cMillies)
                    && ((pRipe = pDev->pUsbIns->pReg->pfnUrbReap(pDev->pUsbIns, cMillies)) != NULL))
             {
                 vusbUrbAssert(pRipe);
-                if (pRipe == pVUsbUrbNext->pUrb)
+                if (pVUsbUrbNext && pRipe == pVUsbUrbNext->pUrb)
                     pVUsbUrbNext = RTListGetNext(pUrbLst, pVUsbUrb, VUSBURBVUSBINT, NdLst);
                 vusbUrbRipe(pRipe);
             }