diff --git a/bundle.json b/bundle.json
index 9bd5fd42c62e9ea01f18a4d96c3dd9ce3b61e049..8a753813fb6b05c22c75999a7eb73006846a26c1 100644
--- a/bundle.json
+++ b/bundle.json
@@ -66,7 +66,7 @@
             ],
             "test": [
                 "//base/security/device_security_level/test:dslm_test",
-                "//base/security/device_security_level/test/dslm_fuzzer:dslm_fuzz_test"
+                "//base/security/device_security_level/test/dslm_fuzzer:DslmFuzzTest"
             ]
         }
     }
diff --git a/oem_property/common/dslm_credential_utils.c b/oem_property/common/dslm_credential_utils.c
index 576cb3ecb01c8781fd57824244ae515ade17ea45..cd1310e674af2d629c6b54bcfcb581106623a6c3 100644
--- a/oem_property/common/dslm_credential_utils.c
+++ b/oem_property/common/dslm_credential_utils.c
@@ -501,7 +501,7 @@ static void CredentialCbToDslmCredInfo(CredentialCb *credCb, DslmCredInfo *credI
     (void)GetDataFromJson(json, CRED_KEY_SECURITY_LEVEL, credInfo->securityLevel, CRED_INFO_LEVEL_LEN);
 
     if (verified) {
-        if (sscanf_s(credInfo->securityLevel, "SL%d", &credInfo->credLevel) <= 0) {
+        if (sscanf_s(credInfo->securityLevel, "SL%u", &credInfo->credLevel) <= 0) {
             SECURITY_LOG_ERROR("formatting securityLevel string failed");
         }
     }
diff --git a/test/dslm_fuzzer/BUILD.gn b/test/dslm_fuzzer/BUILD.gn
index 44e536fa1f1d809c89eaf8eabd35306b5a89a0f4..c257bead082788df1b4c37bdc8dd4f1e163eb6d1 100644
--- a/test/dslm_fuzzer/BUILD.gn
+++ b/test/dslm_fuzzer/BUILD.gn
@@ -14,7 +14,7 @@
 import("//build/ohos.gni")
 import("//build/test.gni")
 
-ohos_fuzztest("dslm_fuzz_test") {
+ohos_fuzztest("DslmFuzzTest") {
   module_out_path = "security/device_security_level"
   fuzz_config_file = "//base/security/device_security_level/test/dslm_fuzzer"
 
@@ -32,7 +32,7 @@ ohos_fuzztest("dslm_fuzz_test") {
     "//base/security/device_security_level/services/sa/standard",
   ]
 
-  sources = [ "dlsm_fuzzer.cpp" ]
+  sources = [ "dslm_fuzzer.cpp" ]
 
   deps =
       [ "//base/security/device_security_level/oem_property/ohos:dslm_service" ]
diff --git a/test/dslm_fuzzer/dlsm_fuzzer.cpp b/test/dslm_fuzzer/dslm_fuzzer.cpp
similarity index 96%
rename from test/dslm_fuzzer/dlsm_fuzzer.cpp
rename to test/dslm_fuzzer/dslm_fuzzer.cpp
index 66686cffedad0b041072258cc9abcd374eb4950b..4e466d13cc3824a38a3a9535c94eb06b6370794f 100644
--- a/test/dslm_fuzzer/dlsm_fuzzer.cpp
+++ b/test/dslm_fuzzer/dslm_fuzzer.cpp
@@ -81,7 +81,7 @@ void OnRemoteRequestFuzzer(Parcel &parcel)
     SECURITY_LOG_INFO("end");
 }
 
-void DlsmFuzzTest(const uint8_t *data, size_t size)
+void DslmFuzzTest(const uint8_t *data, size_t size)
 {
     Parcel parcel;
     parcel.WriteBuffer(data, size);
@@ -100,6 +100,6 @@ void DlsmFuzzTest(const uint8_t *data, size_t size)
 /* Fuzzer entry point */
 extern "C" int32_t LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
 {
-    OHOS::Security::DeviceSecurityLevel::DlsmFuzzTest(data, size);
+    OHOS::Security::DeviceSecurityLevel::DslmFuzzTest(data, size);
     return 0;
 }