From 6bc2d6b66b683faedded01128af8ad98b7130fef Mon Sep 17 00:00:00 2001
From: zeertzjq <zeertzjq@outlook.com>
Date: Sat, 15 Oct 2022 16:10:56 +0800
Subject: vim-patch:9.0.0614: SpellFileMissing autocmd may delete buffer

Problem:    SpellFileMissing autocmd may delete buffer.
Solution:   Disallow deleting the current buffer to avoid using freed memory.
https://github.com/vim/vim/commit/ef976323e770315b5fca544efb6b2faa25674d15
---
 src/nvim/testdir/test_autocmd.vim | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'src/nvim/testdir')

diff --git a/src/nvim/testdir/test_autocmd.vim b/src/nvim/testdir/test_autocmd.vim
index 025bda4515..63ed3ff435 100644
--- a/src/nvim/testdir/test_autocmd.vim
+++ b/src/nvim/testdir/test_autocmd.vim
@@ -2752,6 +2752,16 @@ func Test_FileType_spell()
   setglobal spellfile=
 endfunc
 
+" this was wiping out the current buffer and using freed memory
+func Test_SpellFileMissing_bwipe()
+  next 0
+  au SpellFileMissing 0 bwipe
+  call assert_fails('set spell spelllang=0', 'E937:')
+
+  au! SpellFileMissing
+  bwipe
+endfunc
+
 " Test closing a window or editing another buffer from a FileChangedRO handler
 " in a readonly buffer
 func Test_FileChangedRO_winclose()
-- 
cgit