From 3cbc9b4bf7512421dab488fa838ee57e2c4de497 Mon Sep 17 00:00:00 2001
From: jiangjianfeng <jiangjianfeng.jjf@antgroup.com>
Date: Thu, 28 Aug 2025 08:21:35 +0000
Subject: [PATCH] openat should return ENOENT if path is empty

---
 kernel/src/syscall/open.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/kernel/src/syscall/open.rs b/kernel/src/syscall/open.rs
index 2210d8cf7..80e6742c6 100644
--- a/kernel/src/syscall/open.rs
+++ b/kernel/src/syscall/open.rs
@@ -24,6 +24,10 @@ pub fn sys_openat(
         dirfd, path, flags, mode
     );
 
+    if path.is_empty() {
+        return_errno_with_message!(Errno::ENOENT, "openat fails with empty path");
+    }
+
     let file_handle = {
         let path = path.to_string_lossy();
         let fs_path = FsPath::new(dirfd, path.as_ref())?;