diff --git a/components/dfs/dfs_v1/filesystems/romfs/dfs_romfs.c b/components/dfs/dfs_v1/filesystems/romfs/dfs_romfs.c
index b84c0498eb2..f50f0c74d62 100644
--- a/components/dfs/dfs_v1/filesystems/romfs/dfs_romfs.c
+++ b/components/dfs/dfs_v1/filesystems/romfs/dfs_romfs.c
@@ -44,6 +44,11 @@ int dfs_romfs_ioctl(struct dfs_file *file, int cmd, void *args)
     {
     case RT_FIOGETADDR:
         {
+            if (args == RT_NULL)
+            {
+                ret = -RT_EINVAL;
+                break;
+            }
             *(rt_ubase_t*)args = (rt_ubase_t)dirent->data;
             break;
         }
diff --git a/components/dfs/dfs_v2/filesystems/romfs/dfs_romfs.c b/components/dfs/dfs_v2/filesystems/romfs/dfs_romfs.c
index 6350ad75f53..772e2218ae8 100644
--- a/components/dfs/dfs_v2/filesystems/romfs/dfs_romfs.c
+++ b/components/dfs/dfs_v2/filesystems/romfs/dfs_romfs.c
@@ -64,6 +64,11 @@ int dfs_romfs_ioctl(struct dfs_file *file, int cmd, void *args)
     {
     case RT_FIOGETADDR:
         {
+            if (args == RT_NULL)
+            {
+                ret = -RT_EINVAL;
+                break;
+            }
             *(rt_ubase_t*)args = (rt_ubase_t)dirent->data;
             break;
         }