ui/window: fix subwindow lifecycle (safe delwin on recreate), clamp widths, add fallback timestamp
when loading history to avoid NULL deref
ui/buffer: add GSList bounds checks; assert non-NULL timestamps when creating entries
ui/titlebar: guard newwin failures; make draw/resize/free no-ops when window is NULL
ui/statusbar: guard window creation/resize/close; clamp columns; fallback display name if JID
parsing fails
ui/inputwin: check newpad result; guard resize/getters/close on NULL; safe delwin
ui/chatwin: guard buffer_get_entry/time before ISO8601 formatting
ui/window_list: validate win_create_* results; don’t insert NULL windows; fix barejid leak in
wins_get_by_string
db/database: ensure cleanup on sqlite init/open failures; use sqlite3_close_v2 and warn if busy;
always return a ProfMessage from log_database_get_limits_info and set current UTC timestamp when
is_last with no row; initialize err_msg and free consistently; improve error messages
Prevents crashes from NULL dereferences (e.g., during MAM history) and closes small leaks; improves
robustness under OOM and allocation failures.

@@ -68,0 +77,4 @@
+        }
+        g_chatlog_database = NULL;
+    }
+    sqlite3_shutdown();

@@ -286,0 +315,4 @@
+    if (!myjid || !myjid->str) {
+        // If caller requested the last message and we have no context, fall back to now
+        if (is_last) {
+            msg->timestamp = g_date_time_new_now_utc();

@@ -302,1 +338,3 @@
-        return NULL;
+    if (!_db_prepare_ctx(query, &stmt, "log_database_get_limits_info()")) {
+        if (is_last) {
+            msg->timestamp = g_date_time_new_now_utc();

@@ -164,2 +167,4 @@
 
     inp_win = newpad(1, INP_WIN_MAX);
+    if (!inp_win) {
+        // Failed to allocate input pad; leave inp_win NULL and avoid further use

@@ -111,16 +111,23 @@ status_bar_init(void)
 
     int row = screen_statusbar_row();
     int cols = getmaxx(stdscr);
+    if (cols <= 0) {

@@ -676,3 +692,2 @@
         auto_jid Jid* jid = jid_create(tab->identifier);
-        auto_gchar gchar* mucwin_title = mucwin_generate_title(jid->barejid, PREF_STATUSBAR_ROOM_TITLE);
-        fullname = g_strconcat(mucwin_title, "/", jid->resourcepart, NULL);
+        if (jid) {

@@ -149,2 +149,3 @@
      */
-    assert(MB_CUR_MAX <= PROF_MB_CUR_MAX);
+    if (MB_CUR_MAX > PROF_MB_CUR_MAX) {
+        cons_show_error("Your locale's MB_CUR_MAX (%zu) exceeds PROF_MB_CUR_MAX (%d); input window disabled.", (size_t)MB_CUR_MAX, PROF_MB_CUR_MAX);

@@ -78,0 +79,4 @@
+static int
+_check_subwin_width(int cols, int width)
+{
+    if (cols > 1) {