From 755344013e161ab7c982290c6c78903bd9bd300e Mon Sep 17 00:00:00 2001
From: Nick Wellnhofer <wellnhofer@aevum.de>
Date: Mon, 30 Jan 2023 15:40:23 +0100
Subject: [PATCH] malloc-fail: Record malloc failure in xmlXPathCompLiteral

Avoid OOB array access.

Found with libFuzzer, see #344.

Reference:https://github.com/GNOME/libxml2/commit/755344013e161ab7c982290c6c78903bd9bd300e
Conflict:NA
---
 xpath.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/xpath.c b/xpath.c
index fcbc7e3..fe0e1e2 100644
--- a/xpath.c
+++ b/xpath.c
@@ -10245,7 +10245,10 @@ xmlXPathCompLiteral(xmlXPathParserContextPtr ctxt) {
     } else {
 	XP_ERROR(XPATH_START_LITERAL_ERROR);
     }
-    if (ret == NULL) return;
+    if (ret == NULL) {
+        xmlXPathPErrMemory(ctxt, NULL);
+        return;
+    }
     lit = xmlXPathCacheNewString(ctxt->context, ret);
     if (lit == NULL) {
 	ctxt->error = XPATH_MEMORY_ERROR;
-- 
2.27.0