--- libetpan-1.9.4.orig/src/low-level/imap/mailimap_types.c	2019-11-02 02:58:50.000000000 +0900
+++ libetpan-1.9.4/src/low-level/imap/mailimap_types.c	2022-11-23 14:58:47.075176654 +0900
@@ -1389,9 +1389,12 @@ void
 mailimap_mailbox_data_status_free(struct mailimap_mailbox_data_status * info)
 {
   mailimap_mailbox_free(info->st_mailbox);
-  clist_foreach(info->st_info_list, (clist_func) mailimap_status_info_free,
+  if (info->st_info_list)
+  {
+  	clist_foreach(info->st_info_list, (clist_func) mailimap_status_info_free,
 		 NULL);
-  clist_free(info->st_info_list);
+  	clist_free(info->st_info_list);
+  }
   free(info);
 }