commit 9f84ded38b62c82a4ee57b54f403b1b185ed8170
author Bram Moolenaar <Bram@vim.org> Sat Oct 20 20:54:02 2018 +0200
committer Bram Moolenaar <Bram@vim.org> Sat Oct 20 20:54:02 2018 +0200
tree c114d902fa8638abc397b1abb73c36f8f4dc557f
parent 4c5d815256099b50eca2ec5bf8f9aaa67a890211

patch 8.1.0488: using freed memory in quickfix code

Problem:    Using freed memory in quickfix code. (Dominique Pelle)
Solution:   Add the quickfix_busy() flag to postpone deleting quickfix lists
            until it is safe. (Yegappan Lakshmanan, closes #3538)

src/testdir/test_quickfix.vim

diff --git a/src/testdir/test_quickfix.vim b/src/testdir/test_quickfix.vim
index 4d7987d..390a231 100644
--- a/src/testdir/test_quickfix.vim
+++ b/src/testdir/test_quickfix.vim
@@ -3220,7 +3220,28 @@
   augroup QF_Test
     au!
   augroup END
+
   enew | only
+  augroup QF_Test
+    au!
+    au BufNew * call setloclist(0, [], 'f')
+  augroup END
+  lexpr 'x:1:x'
+  augroup QF_Test
+    au!
+  augroup END
+
+  enew | only
+  lexpr ''
+  lopen
+  augroup QF_Test
+    au!
+    au FileType * call setloclist(0, [], 'f')
+  augroup END
+  lexpr ''
+  augroup QF_Test
+    au!
+  augroup END
 endfunc
 
 " The following test used to crash Vim