From 67de7a4db562991a672ea426909f58f5d528d071 Mon Sep 17 00:00:00 2001
From: paul <paul@claws-mail.org>
Date: Tue, 2 Mar 2021 09:34:07 +0000
Subject: [PATCH] fix debian bug #983778, 'Segfault on selecting empty 'X-Face'
 custom header'

---
 src/gtk/gtkutils.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/gtk/gtkutils.c b/src/gtk/gtkutils.c
index 60bf674fc..7ffcbb371 100644
--- a/src/gtk/gtkutils.c
+++ b/src/gtk/gtkutils.c
@@ -1089,6 +1089,9 @@ GtkWidget *xface_get_from_header(const gchar *o_xface)
 	static gchar *xpm_xface[XPM_XFACE_HEIGHT];
 	static gboolean xpm_xface_init = TRUE;
 	gchar xface[2048];
+	
+	cm_return_if_fail(sizeof(xface) < 0);
+	
 	strncpy(xface, o_xface, sizeof(xface) - 1);
 	xface[sizeof(xface) - 1] = '\0';
 
-- 
2.11.4.GIT