From 305a75ccbec4e4b14ab6c05d581d82bd9801b19f Mon Sep 17 00:00:00 2001
From: Nick Wellnhofer <wellnhofer@aevum.de>
Date: Tue, 6 Jun 2023 13:15:46 +0200
Subject: [PATCH] malloc-fail: Fix null-deref with xmllint --copy

See #344. Fixes #552.

Reference:https://github.com/GNOME/libxml2/commit/305a75ccbec4e4b14ab6c05d581d82bd9801b19f
Conflict:NA

---
 xmllint.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/xmllint.c b/xmllint.c
index 4093b4c..084c24a 100644
--- a/xmllint.c
+++ b/xmllint.c
@@ -2483,6 +2483,11 @@ static void parseAndPrintFile(char *filename, xmlParserCtxtPtr rectxt) {
 	    startTimer();
 	}
 	doc = xmlCopyDoc(doc, 1);
+        if (doc == NULL) {
+            progresult = XMLLINT_ERR_MEM;
+            xmlFreeDoc(tmp);
+            return;
+        }
 	if (timing) {
 	    endTimer("Copying");
 	}
-- 
2.33.0

