diff --git a/services/cameraservice/cameraoperator/handler/src/dcamera_handler.cpp b/services/cameraservice/cameraoperator/handler/src/dcamera_handler.cpp
index 4808b19e93fd270ff689e11d4638d36848c0b2df..d98436b4e2ea0726165397cfd31213c34e092efd 100644
--- a/services/cameraservice/cameraoperator/handler/src/dcamera_handler.cpp
+++ b/services/cameraservice/cameraoperator/handler/src/dcamera_handler.cpp
@@ -31,6 +31,8 @@ namespace OHOS {
 namespace DistributedHardware {
 IMPLEMENT_SINGLE_INSTANCE(DCameraHandler);
 
+const int32_t MAXWIDTHSIZE = 65535;
+
 DCameraHandler::~DCameraHandler()
 {
     DHLOGI("~DCameraHandler");
@@ -308,6 +310,10 @@ bool DCameraHandler::IsValid(const DCStreamType type, const CameraStandard::Size
             break;
         }
         case SNAPSHOT_FRAME: {
+            if (size.width > MAXWIDTHSIZE) {
+                DHLOGE("size width out of range.");
+                return ret;
+            }
             uint64_t dcResolution = static_cast<uint64_t>(size.width * size.width);
             uint64_t dcMaxResolution = static_cast<uint64_t>(RESOLUTION_MAX_WIDTH_SNAPSHOT *
                                                              RESOLUTION_MAX_HEIGHT_SNAPSHOT);
diff --git a/services/cameraservice/cameraoperator/handler/test/unittest/common/dcamerahandler/dcamera_handler_test.cpp b/services/cameraservice/cameraoperator/handler/test/unittest/common/dcamerahandler/dcamera_handler_test.cpp
index 9d7bb3a3afae18833632a29d79dcb0d4a3a0d6cc..7e37aa7a9051baa23f380e6f45c59f49dd02b627 100644
--- a/services/cameraservice/cameraoperator/handler/test/unittest/common/dcamerahandler/dcamera_handler_test.cpp
+++ b/services/cameraservice/cameraoperator/handler/test/unittest/common/dcamerahandler/dcamera_handler_test.cpp
@@ -244,6 +244,10 @@ HWTEST_F(DCameraHandlerTest, dcamera_handler_test_008, TestSize.Level1)
     ret = DCameraHandler::GetInstance().IsValid(SNAPSHOT_FRAME, size);
     EXPECT_EQ(ret, true);
 
+    CameraStandard::Size size1{ 65540, 480 };
+    ret = DCameraHandler::GetInstance().IsValid(SNAPSHOT_FRAME, size1);
+    EXPECT_EQ(ret, false);
+
     int32_t invalidParam = 2;
     auto type = static_cast<DCStreamType>(invalidParam);
     ret = DCameraHandler::GetInstance().IsValid(type, size);