From bc7740b3c30e1517dcf53a084766c74d25db222f Mon Sep 17 00:00:00 2001
From: Nick Wellnhofer <wellnhofer@aevum.de>
Date: Thu, 16 Feb 2023 11:45:58 +0100
Subject: [PATCH] malloc-fail: Fix memory leak in xmlCopyPropList

Found with libFuzzer, see #344.

Reference:https://github.com/GNOME/libxml2/commit/bc7740b3c30e1517dcf53a084766c74d25db222f
Conflict:NA
---
 tree.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tree.c b/tree.c
index ac156e1..35bd948 100644
--- a/tree.c
+++ b/tree.c
@@ -4190,8 +4190,10 @@ xmlCopyPropList(xmlNodePtr target, xmlAttrPtr cur) {
         return(NULL);
     while (cur != NULL) {
         q = xmlCopyProp(target, cur);
-	if (q == NULL)
+	if (q == NULL) {
+            xmlFreePropList(ret);
 	    return(NULL);
+        }
 	if (p == NULL) {
 	    ret = p = q;
 	} else {
-- 
2.27.0