diff --git a/services/distributeddataservice/libs/distributeddb/communicator/src/serial_buffer.cpp b/services/distributeddataservice/libs/distributeddb/communicator/src/serial_buffer.cpp
index 92cce786abb28a04a0f37d3ce2a98f1b8b825844..8109c64034bd91456c165d89638c5c49005e1a37 100755
--- a/services/distributeddataservice/libs/distributeddb/communicator/src/serial_buffer.cpp
+++ b/services/distributeddataservice/libs/distributeddb/communicator/src/serial_buffer.cpp
@@ -43,7 +43,7 @@ int SerialBuffer::AllocBufferByPayloadLength(uint32_t inPayloadLen, uint32_t inH
     if (totalLen_ == 0 || totalLen_ > MAX_TOTAL_LEN) {
         return -E_INVALID_ARGS;
     }
-    bytes_ = new (std::nothrow) uint8_t[totalLen_];
+    bytes_ = new (std::nothrow) uint8_t[totalLen_]();
     if (bytes_ == nullptr) {
         return -E_OUT_OF_MEMORY;
     }
@@ -64,7 +64,7 @@ int SerialBuffer::AllocBufferByTotalLength(uint32_t inTotalLen, uint32_t inHeade
     headerLen_ = inHeaderLen;
     payloadLen_ = totalLen_ - headerLen_;
     paddingLen_ = 0;
-    bytes_ = new (std::nothrow) uint8_t[inTotalLen];
+    bytes_ = new (std::nothrow) uint8_t[inTotalLen]();
     if (bytes_ == nullptr) {
         return -E_OUT_OF_MEMORY;
     }