0012-parser-Fix-crash-in-xmlParseInNodeContext-with-HTML.patch

From 95f2a17440568694a6df6a326c5b411e77597be2 Mon Sep 17 00:00:00 2001
From: Nick Wellnhofer <wellnhofer@aevum.de>
Date: Tue, 30 Jan 2024 13:25:17 +0100
Subject: [PATCH] parser: Fix crash in xmlParseInNodeContext with HTML
 documents

Ignore namespaces if we have an HTML document with namespaces added
manually.

Fixes #672.
---
 parser.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/parser.c b/parser.c
index 1038d71b..f7842ed1 100644
--- a/parser.c
+++ b/parser.c
@@ -12415,8 +12415,10 @@ xmlParseInNodeContext(xmlNodePtr node, const char *data, int datalen,
     }
     xmlAddChild(node, fake);
 
-    if (node->type == XML_ELEMENT_NODE) {
+    if (node->type == XML_ELEMENT_NODE)
 	nodePush(ctxt, node);
+
+    if ((ctxt->html == 0) && (node->type == XML_ELEMENT_NODE)) {
 	/*
 	 * initialize the SAX2 namespaces stack
 	 */
-- 
2.42.0