diff --git a/components/fs/vfs/vfs_fs.c b/components/fs/vfs/vfs_fs.c
index ce05503e..b3af9b3f 100644
--- a/components/fs/vfs/vfs_fs.c
+++ b/components/fs/vfs/vfs_fs.c
@@ -910,12 +910,17 @@ int LOS_Open(const char *path, int flags, ...)
 {
 #ifdef LOSCFG_RANDOM_DEV
     unsigned flagMask = O_RDONLY | O_WRONLY | O_RDWR | O_APPEND | O_CREAT | O_LARGEFILE | O_TRUNC | O_EXCL | O_DIRECTORY;
-    if (((unsigned)flags & ~flagMask) || (path == NULL)) {
+    if ((unsigned)flags & ~flagMask) {
         errno = EINVAL;
         return LOS_NOK;
     }
 
     size_t pathLen = strlen(path) + 1;
+    if ((unsigned)pathLen > PATH_MAX) {
+        errno = EINVAL;
+        return LOS_NOK;
+    }
+
     char *canonicalPath = (char *)malloc(pathLen);
     if (!canonicalPath) {
         errno = ENOMEM;
@@ -952,7 +957,7 @@ int LOS_Open(const char *path, int flags, ...)
     FREE_AND_SET_NULL(canonicalPath);
 #endif
 #if (LOSCFG_POSIX_PIPE_API == 1)
-    if (!strncmp(path, PIPE_DEV_PATH, strlen(PIPE_DEV_PATH))) {
+    if ((path != NULL) && !strncmp(path, PIPE_DEV_PATH, strlen(PIPE_DEV_PATH))) {
         return PipeOpen(path, flags, PIPE_DEV_FD);
     }
 #endif
diff --git a/kernel/src/los_queue.c b/kernel/src/los_queue.c
index 686e5d14..785b2316 100644
--- a/kernel/src/los_queue.c
+++ b/kernel/src/los_queue.c
@@ -39,6 +39,7 @@
 #include "los_memory.h"
 #include "los_task.h"
 #include "los_sched.h"
+#include <stdint.h>
 
 
 #if (LOSCFG_BASE_IPC_QUEUE == 1)