[gnome-terminal] app: Limit the number of clipboard targets to a sensible number

[Christian Persch <chpe src gnome org>]

commit 4085fd5b87ebdc8fac4ebfa2ca926e47bf3f48ad
Author: Christian Persch <chpe src gnome org>
Date:   Thu Feb 4 18:48:15 2021 +0100

    app: Limit the number of clipboard targets to a sensible number

 src/terminal-app.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/terminal-app.c b/src/terminal-app.c
index 6a4fe03f..ff91e156 100644
--- a/src/terminal-app.c
+++ b/src/terminal-app.c
@@ -640,7 +640,7 @@ update_clipboard_targets (TerminalApp *app,
   free_clipboard_targets (app);
 
   /* Sometimes we receive targets == NULL but n_targets == -1 */
-  if (targets != NULL) {
+  if (targets != NULL && n_targets < 255) {
     app->clipboard_targets = g_memdup (targets, sizeof (targets[0]) * n_targets);
     app->n_clipboard_targets = n_targets;
   }