fix: 告警修复

Signed-off-by: arvinzzz <zhaotianyu9@huawei.com>
Change-Id: Iccf2fa30b1c16148c8c3e548fcdceda07dff8ae5

components/fs/vfs/los_fs.c

@@ -269,6 +269,10 @@ int LOS_Open(const char *path, int oflag, ...)
     }
 
     size_t pathLen = strlen(path) + 1;
+    if ((unsigned)pathLen > PATH_MAX) {
+        errno = EINVAL;
+        return FS_FAILURE;
+    }
     char *canonicalPath = (char *)malloc(pathLen);
     if (!canonicalPath) {
         errno = ENOMEM;