diff --git a/frameworks/native/src/sensor_file_descriptor_listener.cpp b/frameworks/native/src/sensor_file_descriptor_listener.cpp
index ec1a564f451104cfaf76e9eb2dfa79f559d1ba41..635f544093dc7b63c80ed99e0c49afd666d7d713 100644
--- a/frameworks/native/src/sensor_file_descriptor_listener.cpp
+++ b/frameworks/native/src/sensor_file_descriptor_listener.cpp
@@ -64,6 +64,10 @@ void SensorFileDescriptorListener::ExcuteCallback(int32_t length)
 {
     int32_t eventSize = static_cast<int32_t>(sizeof(SensorData));
     int32_t num = length / eventSize;
+    if (num <= 0 || num > RECEIVE_DATA_SIZE) {
+        SEN_HILOGE("num:%{public}d is invalid", num);
+        return;
+    }
     for (int i = 0; i < num; i++) {
         SensorEvent event = {
             .sensorTypeId = receiveDataBuff_[i].sensorTypeId,