commit 2c7080bf1ceef4a7779644fd428b2386a0676794
author Bram Moolenaar <Bram@vim.org> Sat Feb 06 19:19:42 2021 +0100
committer Bram Moolenaar <Bram@vim.org> Sat Feb 06 19:19:42 2021 +0100
tree cf62c06da02ed3c688e3e8258191f5f61df1b8d8
parent 8c6951fa2836a1ae3257770e7b927a9380439912

patch 8.2.2474: using freed memory when window is closed by autocommand

Problem:    Using freed memory when window is closed by autocommand.
            (houyunsong)
Solution:   Check the window pointer is still valid.

src/quickfix.c

diff --git a/src/quickfix.c b/src/quickfix.c
index 742a1ee..910c806 100644
--- a/src/quickfix.c
+++ b/src/quickfix.c
@@ -2603,6 +2603,8 @@
 
     if (wp != NULL)
     {
+	if (!win_valid(wp))
+	    return FALSE;
 	qi = GET_LOC_LIST(wp);	    // Location list
 	if (qi == NULL)
 	    return FALSE;

src/testdir/test_autocmd.vim

diff --git a/src/testdir/test_autocmd.vim b/src/testdir/test_autocmd.vim
index 15d237e..e07731d 100644
--- a/src/testdir/test_autocmd.vim
+++ b/src/testdir/test_autocmd.vim
Binary files differ

src/version.c

diff --git a/src/version.c b/src/version.c
index 254aafd..12a5de8 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2474,
+/**/
     2473,
 /**/
     2472,