patch 8.0.0084
Problem: Using freed memory when adding to a quickfix list. (Domenique
Pelle)
Solution: Clear the directory name.
diff --git a/src/testdir/test_quickfix.vim b/src/testdir/test_quickfix.vim
index 98afdb1..13c1482 100644
--- a/src/testdir/test_quickfix.vim
+++ b/src/testdir/test_quickfix.vim
@@ -1669,3 +1669,25 @@
call assert_fails('caddexpr ""', 'E376:')
let &efm = save_efm
endfunc
+
+func Test_dirstack_cleanup()
+ " This used to cause a memory access in freed memory.
+ let save_efm = &efm
+ lexpr '0'
+ lopen
+ fun X(c)
+ let save_efm=&efm
+ set efm=%D%f
+ if a:c == 'c'
+ caddexpr '::'
+ else
+ laddexpr ':0:0'
+ endif
+ let &efm=save_efm
+ endfun
+ call X('c')
+ call X('l')
+ call setqflist([], 'r')
+ caddbuffer
+ let &efm = save_efm
+endfunc