From 3cb457b620b3b67a8b9aae3a5e2deecd9e7560f8 Mon Sep 17 00:00:00 2001
From: Chaoqun Zheng <chaoqun_zh@foxmail.com>
Date: Sun, 1 Feb 2026 23:30:57 +0800
Subject: [PATCH] Add size check in `InodeDesc::is_fast_symlink`

---
 kernel/src/fs/ext2/inode.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/kernel/src/fs/ext2/inode.rs b/kernel/src/fs/ext2/inode.rs
index 7bf4fd6fa..94ccecf22 100644
--- a/kernel/src/fs/ext2/inode.rs
+++ b/kernel/src/fs/ext2/inode.rs
@@ -2647,7 +2647,9 @@ impl InodeDesc {
     ///
     /// Reference: <https://elixir.bootlin.com/linux/v6.18/source/fs/ext2/inode.c#L48-L55>.
     fn is_fast_symlink(&self) -> bool {
-        self.type_ == InodeType::SymLink && self.data_sectors() == 0
+        self.type_ == InodeType::SymLink
+            && self.data_sectors() == 0
+            && self.size <= MAX_FAST_SYMLINK_LEN
     }
 }