diff --git a/media_driver/agnostic/gen10/codec/hal/codechal_encode_mpeg2_g10.cpp b/media_driver/agnostic/gen10/codec/hal/codechal_encode_mpeg2_g10.cpp
index a23bb59..673b6f3 100644
--- a/media_driver/agnostic/gen10/codec/hal/codechal_encode_mpeg2_g10.cpp
+++ b/media_driver/agnostic/gen10/codec/hal/codechal_encode_mpeg2_g10.cpp
@@ -2087,7 +2087,11 @@
         uint8_t scaledIdx = m_refList[refPicIdx]->ucScalingIdx;
 
         // for 4xMe
-        refScaledSurface.OsResource = m_trackedBuf->Get4xDsSurface(scaledIdx)->OsResource;
+        MOS_SURFACE* p4xSurface = m_trackedBuf->Get4xDsSurface(scaledIdx);
+        if (p4xSurface != nullptr)
+        {
+            refScaledSurface.OsResource = p4xSurface->OsResource;
+        }
         refScaledBottomFieldOffset = refBottomField ? (uint32_t)m_scaledBottomFieldOffset : 0;
 
         // L1 Reference Picture Y - VME