From fd57d69970e7947da0d69d744c13121668f91bd8 Mon Sep 17 00:00:00 2001
From: Cédric Barreteau <>
Date: Tue, 30 Jun 2020 18:45:58 +0200
Subject: vim-patch:8.2.0937: asan failure in the flatten() test

Problem:    Asan failure in the flatten() test.
Solution:   Free the flattened list.
https://github.com/vim/vim/commit/dcf59c37d0e1517439c4c0c4a6a5ca09c90157ad
---
 src/nvim/eval/typval.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src')

diff --git a/src/nvim/eval/typval.c b/src/nvim/eval/typval.c
index 576948f052..d5db15afcc 100644
--- a/src/nvim/eval/typval.c
+++ b/src/nvim/eval/typval.c
@@ -651,6 +651,7 @@ int tv_list_flatten(list_T *list, long maxdepth)
   FUNC_ATTR_WARN_UNUSED_RESULT
 {
   listitem_T *item;
+  listitem_T *to_free;
   int n;
   if (maxdepth == 0) {
     return OK;
@@ -668,12 +669,15 @@ int tv_list_flatten(list_T *list, long maxdepth)
 
       tv_list_drop_items(list, item, item);
       tv_list_extend(list, item->li_tv.vval.v_list, next);
+      tv_clear(&item->li_tv);
+      to_free = item;
 
       if (item->li_prev == NULL) {
         item = list->lv_first;
       } else {
         item = item->li_prev->li_next;
       }
+      xfree(to_free);
 
       if (++n >= maxdepth) {
         n = 0;
-- 
cgit