diff --git a/services/cameraservice/sourceservice/src/distributedcameramgr/dcameradata/feedingsmoother/base/time_statistician.cpp b/services/cameraservice/sourceservice/src/distributedcameramgr/dcameradata/feedingsmoother/base/time_statistician.cpp
index 31c8c4402ac149602df488e52a07c38f8876fa2a..6d13dc88e4680fdf1f519f79c05367e646e0cf5d 100644
--- a/services/cameraservice/sourceservice/src/distributedcameramgr/dcameradata/feedingsmoother/base/time_statistician.cpp
+++ b/services/cameraservice/sourceservice/src/distributedcameramgr/dcameradata/feedingsmoother/base/time_statistician.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Copyright (c) 2023-2025 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -35,6 +35,10 @@ void TimeStatistician::CalAverFeedInterval(const int64_t feedTime)
         return;
     }
     feedIndex_++;
+    if (feedIntervalSum_ > INT64_MAX - feedInterval_) {
+        DHLOGE("feedIntervalSum_ overflow");
+        return;
+    }
     feedIntervalSum_ += feedInterval_;
     averFeedInterval_ = feedIntervalSum_ / static_cast<int64_t>(feedIndex_);
     lastFeedTime_ = feedTime_;
@@ -49,6 +53,10 @@ void TimeStatistician::CalAverTimeStampInterval(const int64_t timeStamp)
         return;
     }
     timeStampIndex_++;
+    if (timeStampIntervalSum_ > INT64_MAX - timeStampInterval_) {
+        DHLOGE("timeStampIntervalSum_ overflow");
+        return;
+    }
     timeStampIntervalSum_ += timeStampInterval_;
     averTimeStampInterval_ = timeStampIntervalSum_ / static_cast<int64_t>(timeStampIndex_);
     lastTimeStamp_ = timeStamp_;
diff --git a/services/data_process/src/pipeline_node/fpscontroller/fps_controller_process.cpp b/services/data_process/src/pipeline_node/fpscontroller/fps_controller_process.cpp
index 98d6b0a5c15526ee9071115b094021eff86ac653..d2c7c0d37f3c7e381847bf6c7cf081a02c6806df 100644
--- a/services/data_process/src/pipeline_node/fpscontroller/fps_controller_process.cpp
+++ b/services/data_process/src/pipeline_node/fpscontroller/fps_controller_process.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2022-2024 Huawei Device Co., Ltd.
+ * Copyright (c) 2022-2025 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -143,6 +143,10 @@ void FpsControllerProcess::UpdateFrameRateCorrectionFactor(int64_t nowMs)
     const float msPerSecond = 1000;
     const float maxInstantaneousFrameRateCoefficient = 1.1;
     float maxInstantaneousFrameRateThreshold = targetFrameRate_ * maxInstantaneousFrameRateCoefficient;
+    if (recentFrameTimeSpanMs_ == 0) {
+        DHLOGE("Frame control, recentFrameTimeSpanMs_ is 0, cannot calculate frame rate.");
+        return;
+    }
     float instantaneousFrameRate = msPerSecond / recentFrameTimeSpanMs_;
     if (instantaneousFrameRate < 0) {
         instantaneousFrameRate = -instantaneousFrameRate;
@@ -275,6 +279,10 @@ bool FpsControllerProcess::ReduceFrameRateByUniformStrategy(int32_t incomingFrmR
      * rate, the incoming frames are reduced uniformly.
      */
     bool isDrop = false;
+    if (frameRateOvershootMdf_ > INT32_MAX - (incomingFrmRate - targetFrameRate_)) {
+        DHLOGE("Overshoot value is too large, reset to 0.");
+        return false;
+    }
     int32_t overshoot = frameRateOvershootMdf_ + (incomingFrmRate - targetFrameRate_);
     if (overshoot < 0) {
         overshoot = 0;