malloc-fail: Record malloc failure in xmlXPathCompLiteral

Avoid OOB array access.

Found with libFuzzer, see #344.

1 files changed, 4 insertions, 1 deletions

diff --git a/xpath.c b/xpath.c
index ceed3f21..5cacc2cb 100644
--- a/xpath.c
+++ b/xpath.c
@@ -10272,7 +10272,10 @@ 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;