diff --git a/qtfs/qtfs/sb.c b/qtfs/qtfs/sb.c
index 41ed1e5f99baaf96c3cbae25d2dd7e3c26dd404a..d31ebd86a0c8d1e4565122d5a59b5af62adb3961 100644
--- a/qtfs/qtfs/sb.c
+++ b/qtfs/qtfs/sb.c
@@ -1543,7 +1543,7 @@ const char *qtfs_getlink(struct dentry *dentry,
 	}
 	len = strlen(qtfs_link_inv_prefix) + strlen(rsp->path) + 1;
 	if (len > MAX_PATH_LEN || len == 0) {
-		qtfs_err("qtfs getlink failed. path name too long:%s - %s\n", fsinfo->mnt_path, rsp->path);
+		qtfs_err("qtfs getlink failed. path name too long:%s - %s\n", (fsinfo->mnt_path == NULL) ? "NULL" : fsinfo->mnt_path, rsp->path);
 		qtfs_conn_put_param(pvar);
 		return ERR_PTR(-EINVAL);
 	}
@@ -1770,8 +1770,12 @@ static char *qtfs_get_data_options(void *data_orig, char *key)
 	char *finded = NULL;
 	char *next_deli = NULL;
 	// ignore mount point path
-	char *data = strchr((const char *)data_orig, ',');
-	if (data == NULL || key == NULL) {
+	char *data;
+	if (data_orig == NULL || key == NULL) {
+		return NULL;
+	}
+	data = strchr((const char *)data_orig, ',');
+	if (data == NULL) {
 		return NULL;
 	}
 	while (finded == NULL && data != NULL) {
@@ -1870,8 +1874,7 @@ struct dentry *qtfs_fs_mount(struct file_system_type *fs_type,
 	priv->type = qtfs_get_type(data);
 	strlcpy(priv->peer_path, dev_name, NAME_MAX);
 	if (qtfs_get_mnt_path(priv, data) != 0) {
-		qtfs_err("get qtfs mnt path failed, dev name:%s, data:%s", dev_name, (char *)data);
-		return ERR_PTR(-EFAULT);
+		qtfs_info("ignore mnt path, dev name:%s", dev_name);
 	}
 
 	ret = mount_nodev(fs_type, flags, (void *)priv, qtfs_fill_super);
diff --git a/qtfs/qtfs_server/fsops.c b/qtfs/qtfs_server/fsops.c
index eeefd74cbaa8bb6d9c6c7dafe04a68ed5e03f7c4..17e392325dc9c464e2210a4e29ab339b524c84e8 100644
--- a/qtfs/qtfs_server/fsops.c
+++ b/qtfs/qtfs_server/fsops.c
@@ -781,8 +781,12 @@ static int handle_getattr(struct qtserver_arg *arg)
 		qtfs_err("handle getattr path:%s failed, ret:%d %s\n", req->path, ret, (ret != -ENOENT) ? "." : "file not exist");
 		goto failed;
 	}
-
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(6, 6, 0))
+	ret = vfs_getattr(&path, &rsp->stat, req->request_mask, req->query_flags & (~AT_GETATTR_NOSEC));
+#else
 	ret = vfs_getattr(&path, &rsp->stat, req->request_mask, req->query_flags);
+#endif
+
 	if (ret) {
 		qtfs_err("vfs getattr path:%s ret:%d\n", req->path, ret);
 		rsp->errno = ret;