If there are no buffers, reset mode as soon as any key pressed. Fixes

crash reported by Gaoyang Zhang in GitHub issue 3373.

diff --git a/usr.bin/tmux/window-buffer.c b/usr.bin/tmux/window-buffer.c
index 73c1fe0..2182149 100644 (file)
--- a/usr.bin/tmux/window-buffer.c
+++ b/usr.bin/tmux/window-buffer.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: window-buffer.c,v 1.36 2022/05/30 12:55:25 nicm Exp $ */
+/* $OpenBSD: window-buffer.c,v 1.37 2022/11/03 08:41:53 nicm Exp $ */
 
 /*
  * Copyright (c) 2017 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -508,6 +508,11 @@ window_buffer_key(struct window_mode_entry *wme, struct client *c,
        struct window_buffer_itemdata   *item;
        int                              finished;
 
+       if (paste_get_top(NULL) == NULL) {
+               finished = 1;
+               goto out;
+       }
+
        finished = mode_tree_key(mtd, c, &key, m, NULL, NULL);
        switch (key) {
        case 'e':
@@ -534,6 +539,8 @@ window_buffer_key(struct window_mode_entry *wme, struct client *c,
                finished = 1;
                break;
        }
+
+out:
        if (finished || paste_get_top(NULL) == NULL)
                window_pane_reset_mode(wp);
        else {