From e39b5c99f1592b792206fb3b5da857b0ed41855a Mon Sep 17 00:00:00 2001
From: Matthias Clasen <mclasen@redhat.com>
Date: Mon, 1 Feb 2021 00:43:44 -0500
Subject: [PATCH] imcontext: Add a precondition check

---
 gtk/gtkimcontextsimple.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gtk/gtkimcontextsimple.c b/gtk/gtkimcontextsimple.c
index 21db7d04b3..76afa8c1ee 100644
--- a/gtk/gtkimcontextsimple.c
+++ b/gtk/gtkimcontextsimple.c
@@ -1320,6 +1320,7 @@ gtk_im_context_simple_add_table (GtkIMContextSimple *context_simple,
 				 int                 n_seqs)
 {
   g_return_if_fail (GTK_IS_IM_CONTEXT_SIMPLE (context_simple));
+  g_return_if_fail (max_seq_len <= GTK_MAX_COMPOSE_LEN);
 
   G_LOCK (global_tables);