From 6ef5471afa69a654888bc285a51a6035405d33a0 Mon Sep 17 00:00:00 2001
From: Bram Moolenaar <Bram@vim.org>
Date: Sun, 25 Dec 2022 19:31:36 +0000
Subject: patch 9.0.1095: using freed memory when declaration fails

Problem:    Using freed memory when declaration fails. (Yegappan Lakshmanan)
Solution:   After unreferencing an object set the reference to NULL.
---
 src/typval.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src/typval.c')

diff --git a/src/typval.c b/src/typval.c
index 98915ccca..6eae02b78 100644
--- a/src/typval.c
+++ b/src/typval.c
@@ -162,9 +162,11 @@ clear_tv(typval_T *varp)
 		break;
 	    case VAR_CLASS:
 		class_unref(varp->vval.v_class);
+		varp->vval.v_class = NULL;
 		break;
 	    case VAR_OBJECT:
 		object_unref(varp->vval.v_object);
+		varp->vval.v_object = NULL;
 		break;
 	    case VAR_UNKNOWN:
 	    case VAR_ANY:
-- 
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