From 1c3dd8ddcba63c1af5112e567215b3cec2de11d0 Mon Sep 17 00:00:00 2001
From: Bram Moolenaar <Bram@vim.org>
Date: Sat, 17 Sep 2022 19:43:23 +0100
Subject: patch 9.0.0490: using freed memory with cmdwin and BufEnter autocmd

Problem:    Using freed memory with cmdwin and BufEnter autocmd.
Solution:   Make sure pointer to b_p_iminsert is still valid.
---
 src/testdir/test_cmdwin.vim | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'src/testdir/test_cmdwin.vim')

diff --git a/src/testdir/test_cmdwin.vim b/src/testdir/test_cmdwin.vim
index d62673aba2..fe849bcc16 100644
--- a/src/testdir/test_cmdwin.vim
+++ b/src/testdir/test_cmdwin.vim
@@ -378,5 +378,15 @@ func Test_normal_escape()
   call assert_equal('" bar', @:)
 endfunc
 
+" This was using a pointer to a freed buffer
+func Test_cmdwin_freed_buffer_ptr()
+  au BufEnter * next 0| file 
+  edit 0
+  silent! norm q/
+
+  au! BufEnter
+  bwipe!
+endfunc
+
 
 " vim: shiftwidth=2 sts=2 expandtab
-- 
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