diff -u linux/fs/ncpfs/dir.c-o linux/fs/ncpfs/dir.c
--- linux/fs/ncpfs/dir.c-o	2004-01-22 15:39:20.000000000 +0100
+++ linux/fs/ncpfs/dir.c	2004-01-22 15:39:20.000000000 +0100
@@ -328,6 +328,8 @@
 {
 	int res;
 	lock_kernel();
+	if (dentry->d_name.len >= 254) 
+		return -ENAMETOOLONG;
 	res = __ncp_lookup_validate(dentry, flags);
 	unlock_kernel();
 	return res;
@@ -873,6 +875,8 @@
 
 static int ncp_create(struct inode *dir, struct dentry *dentry, int mode)
 {
+	if (dentry->d_name.len >= 254) 
+		return -ENAMETOOLONG;
 	return ncp_create_new(dir, dentry, mode, 0);
 }