diff --git a/src/context_tool.c b/src/context_tool.c
index 60e5e4c..1440a6b 100644
--- a/src/context_tool.c
+++ b/src/context_tool.c
@@ -155,11 +155,13 @@ int32_t CheckRpcidFormat(const char *inputFile, char **buffer, uint32_t *len)
     }
     if (bufferLen < (2 * sizeof(uint32_t))) { // 2, header of rpcid.sc
         PRINT_ERR("Parse file failed(format is invalid), input file : %s\n", inputFile);
+        free(contextBuffer);
         return -1;
     }
     rpcidHeader = (RPCIDHead *)contextBuffer;
     if (rpcidHeader->apiVersionType != 1) {
         PRINT_ERR("Parse file failed(apiVersionType != 1), input file : %s\n", inputFile);
+        free(contextBuffer);
         return -1;
     }
     sysCaptype = NtohsInter(*(uint16_t *)(rpcidHeader + 1));
diff --git a/src/create_pcid.c b/src/create_pcid.c
index 09aaa64..64814f3 100644
--- a/src/create_pcid.c
+++ b/src/create_pcid.c
@@ -705,7 +705,6 @@ static int32_t GetSyscapStr(char *input, char const *priSyscapStr, uint32_t* osS
         return -1;
     }
     priSyscapStr = ctx;
-    free(ctx);
     return 0;
 }
 
@@ -735,6 +734,7 @@ int32_t DecodeStringPCIDToJson(char *input, char *outDirPath)
         PRINT_ERR("Add os syscap json object failed.\n");
         goto ADD_JSON_FAILED;
     }
+
     if (AddPriSyscapToJsonObj(priSyscapStr, (uint32_t)strlen(priSyscapStr), sysCapObj) != 0) {
         PRINT_ERR("Add private syscap json object failed.\n");
         goto ADD_JSON_FAILED;
diff --git a/src/syscap_tool.c b/src/syscap_tool.c
index 3bcd76a..b2ab4fd 100644
--- a/src/syscap_tool.c
+++ b/src/syscap_tool.c
@@ -658,7 +658,7 @@ int32_t ComparePriSyscap(char *pcid, char *rpcid, uint32_t pcidLen, uint32_t rpc
     return prisyscapFlag;
 }
 
-int32_t CompoareVersion(uint32_t *pcidOsArray, uint32_t *rpcidOsAarry)
+static int32_t CompareVersion(uint32_t *pcidOsArray, uint32_t *rpcidOsAarry)
 {
     int32_t versionFlag = 0;
     uint16_t pcidVersion = NtohsInter(((PCIDMain *)pcidOsArray)->apiVersion);
@@ -705,10 +705,14 @@ int32_t ComparePcidWithRpcidString(char *pcidFile, char *rpcidFile, uint32_t typ
                                     &rpcidPriSyscap, &rpcidPriSyscapLen);
     if (ret != 0) {
         PRINT_ERR("Separate syscap from string failed. ret = %d\n", ret);
+        free(pcidContent);
+        free(rpcidContent);
+        free(pcidPriSyscap);
+        free(rpcidPriSyscap);
         return -1;
     }
 
-    int32_t versionFlag = CompoareVersion(pcidOsArray, rpcidOsAarry);
+    int32_t versionFlag = CompareVersion(pcidOsArray, rpcidOsAarry);
     int32_t ossyscapFlag = CompareOsSyscap(pcidOsArray, rpcidOsAarry);
     int32_t prisyscapFlag = ComparePriSyscap(pcidPriSyscap, rpcidPriSyscap, pcidPriSyscapLen, rpcidPriSyscapLen);
     if (!versionFlag && !ossyscapFlag && !prisyscapFlag) {