diff --git a/interfaces/kits/js/remote_file_share/remotefileshare_n_exporter.cpp b/interfaces/kits/js/remote_file_share/remotefileshare_n_exporter.cpp
index a54e3bf7b67944812c023cf4a0b2b7b2ba8f3e03..6141fc7eee2cda12facfccbdb9f69c8b02661608 100644
--- a/interfaces/kits/js/remote_file_share/remotefileshare_n_exporter.cpp
+++ b/interfaces/kits/js/remote_file_share/remotefileshare_n_exporter.cpp
@@ -13,27 +13,33 @@
  * limitations under the License.
  */
 
-#include <tuple>
+#include "remotefileshare_n_exporter.h"
+
 #include <fcntl.h>
 #include <unistd.h>
+
+#include <climits>
 #include <cstdio>
 #include <cstring>
 #include <string>
+#include <tuple>
 
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <sys/ioctl.h>
 
 #include "securec.h"
-#include "remotefileshare_n_exporter.h"
 
 namespace OHOS {
 namespace AppFileService {
 namespace ModuleRemoteFileShare {
 using namespace FileManagement::LibN;
 using namespace std;
-static constexpr int HMDFS_CID_SIZE = 64;
-static constexpr unsigned HMDFS_IOC = 0xf2;
+namespace {
+    constexpr int HMDFS_CID_SIZE = 64;
+    constexpr unsigned HMDFS_IOC = 0xf2;
+    const std::string SHARE_PATH = "/data/storage/el2/distributedfiles/.share";
+}
 
 #define HMDFS_IOC_SET_SHARE_PATH    _IOW(HMDFS_IOC, 1, struct hmdfs_share_control)
 
@@ -47,21 +53,19 @@ static NError CreateSharePath(const int src_fd, const std::string &cid)
     struct hmdfs_share_control sc;
     int32_t ret = 0;
     int32_t dirFd;
-    std::string sharePath = "/data/storage/el2/distributedfiles/.share";
 
-    if (access(sharePath.c_str(), F_OK) != 0) {
-        ret = mkdir(sharePath.c_str(), S_IRWXU | S_IRWXG | S_IXOTH);
+    if (access(SHARE_PATH.c_str(), F_OK) != 0) {
+        ret = mkdir(SHARE_PATH.c_str(), S_IRWXU | S_IRWXG | S_IXOTH);
         if (ret < 0) {
             return NError(errno);
         }
     }
 
-    char *realPath = realpath(sharePath.c_str(), nullptr);
-    if (realPath == nullptr) {
+    char realPath[PATH_MAX] = {0};
+    if (!realpath(SHARE_PATH.c_str(), realPath)) {
         return NError(errno);
     }
     dirFd = open(realPath, O_RDONLY);
-    free(realPath);
     if (dirFd < 0) {
         return NError(errno);
     }
@@ -113,8 +117,7 @@ napi_value CreateSharePath(napi_env env, napi_callback_info info)
         if (err) {
             return { env, err.GetNapiErr(env) };
         } else {
-            std::string sharePath = "/data/storage/el2/distributedfiles/.share";
-            return NVal::CreateUTF8String(env, sharePath);
+            return NVal::CreateUTF8String(env, SHARE_PATH);
         }
     };
     std::string procedureName = "CreateSharePath";
@@ -134,4 +137,4 @@ napi_value CreateSharePath(napi_env env, napi_callback_info info)
 }
 } // namespace ModuleRemoteFileShare
 } // namespace AppFileService
-} // namespace OHOS
\ No newline at end of file
+} // namespace OHOS
diff --git a/interfaces/kits/js/remote_file_share/remotefileshare_napi.cpp b/interfaces/kits/js/remote_file_share/remotefileshare_napi.cpp
index fe4329d484ba194c553c4d523050d008a025ad60..69c672088224a6cb15a7e54a346cda83ffaaba04 100644
--- a/interfaces/kits/js/remote_file_share/remotefileshare_napi.cpp
+++ b/interfaces/kits/js/remote_file_share/remotefileshare_napi.cpp
@@ -34,4 +34,4 @@ napi_value RemoteFileShareExport(napi_env env, napi_value exports)
 NAPI_MODULE(remotefileshare, RemoteFileShareExport)
 } // namespace ModuleRemoteFileShare
 } // namespace AppFileService
-} // namespace OHOS
\ No newline at end of file
+} // namespace OHOS
diff --git a/test/fuzztest/remotefileshare_fuzzer/remotefileshare_fuzzer.cpp b/test/fuzztest/remotefileshare_fuzzer/remotefileshare_fuzzer.cpp
index 90f909f0e4a89c63ad64fea32aec0436e7d79297..560b6123d224907b98b527ddaecd1836677bd9df 100644
--- a/test/fuzztest/remotefileshare_fuzzer/remotefileshare_fuzzer.cpp
+++ b/test/fuzztest/remotefileshare_fuzzer/remotefileshare_fuzzer.cpp
@@ -22,13 +22,18 @@
 #include <sys/types.h>
 #include <unistd.h>
 
+#include <climits>
+
 #include "securec.h"
 
 namespace OHOS {
 namespace AppFileService {
 namespace ModuleRemoteFileShare {
-static constexpr int HMDFS_CID_SIZE = 64;
-static constexpr unsigned HMDFS_IOC = 0xf2;
+namespace {
+    constexpr int HMDFS_CID_SIZE = 64;
+    constexpr unsigned HMDFS_IOC = 0xf2;
+    const char* SHARE_PATH = "/data/storage/el2/distributedfiles/.share";
+}
 
 #define HMDFS_IOC_SET_SHARE_PATH    _IOW(HMDFS_IOC, 1, struct hmdfs_share_control)
 
@@ -42,25 +47,23 @@ bool ShareFilePathIoctlFdAndCidFuzzTest(const uint8_t* data, size_t size)
     struct hmdfs_share_control sc;
     int32_t ret = 0;
     int32_t dirFd;
-    const char* sharePath = "/data/storage/el2/distributedfiles/.share";
 
     if (size <= 0) {
         return false;
     }
 
-    if (access(sharePath, F_OK) != 0) {
-        ret = mkdir(sharePath, S_IRWXU | S_IRWXG | S_IXOTH);
+    if (access(SHARE_PATH, F_OK) != 0) {
+        ret = mkdir(SHARE_PATH, S_IRWXU | S_IRWXG | S_IXOTH);
         if (ret < 0) {
             return false;
         }
     }
 
-    char *realPath = realpath(sharePath, nullptr);
-    if (realPath == nullptr) {
+    char realPath[PATH_MAX] = {0};
+    if (!realpath(SHARE_PATH, realPath)) {
         return false;
     }
     dirFd = open(realPath, O_RDONLY);
-    free(realPath);
     if (dirFd < 0) {
         return false;
     }
@@ -86,47 +89,50 @@ bool ShareFilePathIoctlCidFuzzTest(const uint8_t* data, size_t size)
     struct hmdfs_share_control sc;
     int32_t ret = 0;
     int32_t dirFd;
-    const char* sharePath = "/data/storage/el2/distributedfiles/.share";
+    int32_t srcFd;
 
     if (size <= 0) {
         return false;
     }
 
-    if (access(sharePath, F_OK) != 0) {
-        ret = mkdir(sharePath, S_IRWXU | S_IRWXG | S_IXOTH);
+    if (access(SHARE_PATH, F_OK) != 0) {
+        ret = mkdir(SHARE_PATH, S_IRWXU | S_IRWXG | S_IXOTH);
         if (ret < 0) {
             return false;
         }
     }
 
-    char *realPath = realpath(sharePath, nullptr);
-    if (realPath == nullptr) {
+    char realPath[PATH_MAX] = {0};
+    if (!realpath(SHARE_PATH, realPath)) {
         return false;
     }
     dirFd = open(realPath, O_RDONLY);
-    free(realPath);
     if (dirFd < 0) {
         return false;
     }
 
     const char* srcPath = "/data/service/el2/100/hmdfs/non_account/data/com.ohos.camera";
-    int32_t srcFd = open(srcPath, O_RDONLY);
+    srcFd = open(srcPath, O_RDONLY);
     if (srcFd < 0) {
+        close(dirFd);
         return false;
     }
     sc.src_fd = size;
     const char* cid = reinterpret_cast<const char*>(data);
     if (memcpy_s(sc.cid, HMDFS_CID_SIZE, cid, size) != 0) {
         close(dirFd);
+        close(srcFd);
         return false;
     }
 
     ret = ioctl(dirFd, HMDFS_IOC_SET_SHARE_PATH, &sc);
     if (ret < 0) {
         close(dirFd);
+        close(srcFd);
         return false;
     }
 
+    close(srcFd);
     return true;
 }
 
@@ -135,25 +141,24 @@ bool ShareFilePathIoctlFdFuzzTest(const uint8_t* data, size_t size)
     struct hmdfs_share_control sc;
     int32_t ret = 0;
     int32_t dirFd;
-    const char* sharePath = "/data/storage/el2/distributedfiles/.share";
 
     if (size <= 0) {
         return false;
     }
 
-    if (access(sharePath, F_OK) != 0) {
-        ret = mkdir(sharePath, S_IRWXU | S_IRWXG | S_IXOTH);
+    if (access(SHARE_PATH, F_OK) != 0) {
+        ret = mkdir(SHARE_PATH, S_IRWXU | S_IRWXG | S_IXOTH);
         if (ret < 0) {
             return false;
         }
     }
 
-    char *realPath = realpath(sharePath, nullptr);
-    if (realPath == nullptr) {
+    char realPath[PATH_MAX] = {0};
+    if (!realpath(SHARE_PATH, realPath)) {
         return false;
     }
+
     dirFd = open(realPath, O_RDONLY);
-    free(realPath);
     if (dirFd < 0) {
         return false;
     }