# HG changeset patch
# User Bram Moolenaar <Bram@vim.org>
# Date 1559841306 -7200
# Node ID 8c794a694d669f43d048a0dc30f991b0e0a214ac
# Parent  8a2324f4a8baec9614bc4a3da48c137ebad97979
patch 8.1.1485: double free when garbage_collect() is used in autocommand

commit https://github.com/vim/vim/commit/c07f67ad0e9c48a07d49f2d67eb63e183a22386a
Author: Bram Moolenaar <Bram@vim.org>
Date:   Thu Jun 6 19:03:17 2019 +0200

    patch 8.1.1485: double free when garbage_collect() is used in autocommand

    Problem:    Double free when garbage_collect() is used in autocommand.
    Solution:   Have garbage collection also set the copyID in funccal_stack.

diff --git a/src/eval.c b/src/eval.c
--- a/src/eval.c
+++ b/src/eval.c
@@ -430,12 +430,11 @@ eval_clear(void)
 	vim_free(SCRIPT_SV(i));
     ga_clear(&ga_scripts);
 
-    // functions need to be freed before gargabe collecting, otherwise local
-    // variables might be freed twice.
-    free_all_functions();
-
     // unreferenced lists and dicts
     (void)garbage_collect(FALSE);
+
+    // functions not garbage collected
+    free_all_functions();
 }
 #endif
 
diff --git a/src/userfunc.c b/src/userfunc.c
--- a/src/userfunc.c
+++ b/src/userfunc.c
@@ -4030,11 +4030,18 @@ set_ref_in_funccal(funccall_T *fc, int c
     int
 set_ref_in_call_stack(int copyID)
 {
-    int		abort = FALSE;
-    funccall_T	*fc;
+    int			abort = FALSE;
+    funccall_T		*fc;
+    funccal_entry_T	*entry;
 
     for (fc = current_funccal; fc != NULL; fc = fc->caller)
 	abort = abort || set_ref_in_funccal(fc, copyID);
+
+    // Also go through the funccal_stack.
+    for (entry = funccal_stack; entry != NULL; entry = entry->next)
+	for (fc = entry->top_funccal; fc != NULL; fc = fc->caller)
+	    abort = abort || set_ref_in_funccal(fc, copyID);
+
     return abort;
 }
 
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -768,6 +768,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1485,
+/**/
     1484,
 /**/
     1483,