From 1e1731a43d2950b6717a5bc0d3bb6efe03595c47 Mon Sep 17 00:00:00 2001
From: Nick Wellnhofer <wellnhofer@aevum.de>
Date: Sun, 17 Nov 2024 13:20:06 +0100
Subject: [PATCH] valid: Add NULL check in xmlCtxtValidateDtd

---
 valid.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/valid.c b/valid.c
index 5a6fc069..a0061a16 100644
--- a/valid.c
+++ b/valid.c
@@ -6495,6 +6495,8 @@ xmlValidateDtd(xmlValidCtxtPtr ctxt, xmlDocPtr doc, xmlDtdPtr dtd) {
  */
 int
 xmlCtxtValidateDtd(xmlParserCtxtPtr ctxt, xmlDocPtr doc, xmlDtdPtr dtd) {
+    if (ctxt == NULL)
+        return(0);
     return(xmlValidateDtd(&ctxt->vctxt, doc, dtd));
 }