diff --git a/services/distributeddataservice/libs/distributeddb/communicator/src/serial_buffer.cpp b/services/distributeddataservice/libs/distributeddb/communicator/src/serial_buffer.cpp
index 934ea3ec54d326b49a2b89c38a9bb417fb72fc48..24065e7888285b4e4dcfc9a30cc0faa258d6c75b 100644
--- a/services/distributeddataservice/libs/distributeddb/communicator/src/serial_buffer.cpp
+++ b/services/distributeddataservice/libs/distributeddb/communicator/src/serial_buffer.cpp
@@ -55,7 +55,7 @@ int SerialBuffer::AllocBufferByPayloadLength(uint32_t inPayloadLen, uint32_t inH
     if (totalLen_ == 0 || totalLen_ > MAX_TOTAL_LEN) {
         return -E_INVALID_ARGS;
     }
-    oringinalBytes_ = new (std::nothrow) uint8_t[totalLen_ + extendHeadLen_];
+    oringinalBytes_ = new (std::nothrow) uint8_t[totalLen_ + extendHeadLen_]();
     if (oringinalBytes_ == nullptr) {
         return -E_OUT_OF_MEMORY;
     }
@@ -77,7 +77,7 @@ 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;
     }