From 95606d23362cea6898f04d75a1483d928532af1e Mon Sep 17 00:00:00 2001
From: Maxime Coste <mawww@kakoune.org>
Date: Tue, 1 Dec 2020 21:56:55 +1100
Subject: [PATCH] Avoid potential use after free of the mode name

This can be an issue with NextKey that now does not have a static
mode name.
---
 src/input_handler.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/input_handler.cc b/src/input_handler.cc
index b7f83592..14f9240b 100644
--- a/src/input_handler.cc
+++ b/src/input_handler.cc
@@ -1596,6 +1596,7 @@ void InputHandler::pop_mode(InputMode* mode)
     kak_assert(m_mode_stack.back().get() == mode);
     kak_assert(m_mode_stack.size() > 1);
 
+    RefPtr<InputMode> keep_alive{mode}; // Ensure prev_name stays valid
     StringView prev_name = mode->name();
 
     current_mode().on_disabled(false);