diff --git a/interfaces/inner_api/syscap_interface.c b/interfaces/inner_api/syscap_interface.c
index e7e32bb46490b2f7db3774674fbd13afea505428..45a89b93f962644496aa949dbd6b11a226b960d8 100644
--- a/interfaces/inner_api/syscap_interface.c
+++ b/interfaces/inner_api/syscap_interface.c
@@ -121,17 +121,20 @@ bool EncodePrivateSyscap(char **output, int *outputLen)
 
     if (bufferLen < (PCID_MAIN_BYTES + 1) || bufferLen > INT32_MAX) {
         PRINT_ERR("Parameter bufferLen out of range.");
+        FreeContextBuffer(contextBuffer);
         return false;
     }
     uint32_t priLen = bufferLen - PCID_MAIN_BYTES - 1;
     if ((int)priLen <= 0) {
         *outputLen = 0;
+        FreeContextBuffer(contextBuffer);
         return false;
     }
     outputStr = (char *)calloc(priLen, sizeof(char));
     if (outputStr == NULL) {
         PRINT_ERR("malloc buffer failed, size = %u, errno = %d\n", priLen, errno);
         *outputLen = 0;
+        FreeContextBuffer(contextBuffer);
         return false;
     }
 
@@ -510,8 +513,10 @@ char *DecodeRpcidToStringFormat(const char *inputFile)
         return FreeAfterDecodeRpcidToString(freeAfterDecodeRpcidInfo, FREE_MALLOC_OSSYSCAP_AFTER_DECODE_RPCID,
                 outBuffer);
     }
+    priSyscapArray = NULL;
 
     PartSysCapAndOutBuffer(freeAfterDecodeRpcidInfo, outBuffer, priSyscapArray, sysCapArray);
+    priSyscapArray = NULL;
     return FreeAfterDecodeRpcidToString(freeAfterDecodeRpcidInfo, FREE_MALLOC_PRISYSCAP_AFTER_DECODE_RPCID, outBuffer);
 }
 
@@ -525,7 +530,7 @@ static int32_t CopySyscopToRet(struct PcidPriSyscapInfo *pcidPriSyscapInfo, cons
             break;
         }
     }
-    if(t == allSyscapNum){
+    if (t == allSyscapNum) {
         return -1;
     }
     pcidPriSyscapInfo->ret = strcpy_s(tempSyscap, sizeof(char) * SINGLE_SYSCAP_LEN, g_arraySyscap[t].str);
diff --git a/napi/napi_query_syscap.cpp b/napi/napi_query_syscap.cpp
index f01836f2baafbf21765a8a457f51786283d86c42..6f75b2b589dd21fddeb8cfd0355afeae1cea6579 100644
--- a/napi/napi_query_syscap.cpp
+++ b/napi/napi_query_syscap.cpp
@@ -172,7 +172,6 @@ napi_value QuerySystemCapability(napi_env env, napi_callback_info info)
     } else {
         napi_get_undefined(env, &result);
     }
-
     napi_value resource = nullptr;
     napi_create_string_utf8(env, "napi_value QuerySystemCapability", NAPI_AUTO_LENGTH, &resource);
 
diff --git a/src/create_pcid.c b/src/create_pcid.c
index 5176caf99e98e4362b36cebbc100caf1aa857e3f..6f9a3736903c72b341bd90ee583dfeba32d14a61 100644
--- a/src/create_pcid.c
+++ b/src/create_pcid.c
@@ -332,6 +332,7 @@ int32_t GetOsSyscap(PCIDMain *pcidMain, cJSON *sysCapObject)
             }
             if (!cJSON_AddItemToArray(capVectorPtr, cJSON_CreateString(g_arraySyscap[j].str))) {
                 printf("cJSON_AddItemToArray or cJSON_CreateString failed\n");
+                cJSON_Delete(capVectorPtr);
                 return -1;
             }
         }
@@ -339,9 +340,11 @@ int32_t GetOsSyscap(PCIDMain *pcidMain, cJSON *sysCapObject)
 
     if (!cJSON_AddItemToObject(sysCapObject, "os", capVectorPtr)) {
         PRINT_ERR("cJSON_AddItemToObject failed\n");
+        cJSON_Delete(capVectorPtr);
         return -1;
     }
 
+    cJSON_Delete(capVectorPtr);
     return 0;
 }