Fix infinite loop in HTML parser introduced with recent commits
Check for XML_PARSER_EOF to avoid an infinite loop introduced with
recent changes to the HTML push parser.
Found by OSS-Fuzz.
diff --git a/HTMLparser.c b/HTMLparser.c
index 2877f4b..14cc56f 100644
--- a/HTMLparser.c
+++ b/HTMLparser.c
@@ -5872,7 +5872,8 @@
xmlGenericError(xmlGenericErrorContext,
"HPP: Parsing char data\n");
#endif
- while ((cur != '<') && (in->cur < in->end)) {
+ while ((ctxt->instate != XML_PARSER_EOF) &&
+ (cur != '<') && (in->cur < in->end)) {
if (cur == '&') {
htmlParseReference(ctxt);
} else {
