diff --git a/services/engine/histreamer/avmetadatahelper/av_thumbnail_generator.cpp b/services/engine/histreamer/avmetadatahelper/av_thumbnail_generator.cpp
index 03580998bd83997943bfc80e646f5fab61713290..ce5bc88cda94b0b79b5e101977b27b2bd4ef163f 100644
--- a/services/engine/histreamer/avmetadatahelper/av_thumbnail_generator.cpp
+++ b/services/engine/histreamer/avmetadatahelper/av_thumbnail_generator.cpp
@@ -537,6 +537,8 @@ Status AVThumbnailGenerator::SeekToTime(int64_t timeMs, Plugins::SeekMode option
 
 void AVThumbnailGenerator::ConvertToAVSharedMemory()
 {
+    CHECK_AND_RETURN_LOG(avBuffer_ != nullptr && avBuffer_->memory_ != nullptr,
+        "fetch frame success but avbuffer is nullptr!");
     auto surfaceBuffer = avBuffer_->memory_->GetSurfaceBuffer();
     if (surfaceBuffer != nullptr) {
         auto ret = GetYuvDataAlignStride(surfaceBuffer);