commit bfecc1f11ab5f0cc2aa3dc5cb87d3236a87ce61d
Author: Tomas Korbar <tkorbar@redhat.com>
Date:   Fri Sep 30 10:52:04 2022 +0200

    Fix CVE-2022-40674

diff --git a/lib/xmlparse.c b/lib/xmlparse.c
index e986156..1352a89 100644
--- a/lib/xmlparse.c
+++ b/lib/xmlparse.c
@@ -5826,10 +5826,15 @@ internalEntityProcessor(XML_Parser parser, const char *s, const char *end,
   {
     parser->m_processor = contentProcessor;
     /* see externalEntityContentProcessor vs contentProcessor */
-    return doContent(parser, parser->m_parentParser ? 1 : 0, parser->m_encoding,
-                     s, end, nextPtr,
-                     (XML_Bool)! parser->m_parsingStatus.finalBuffer,
-                     XML_ACCOUNT_DIRECT);
+    result = doContent(parser, parser->m_parentParser ? 1 : 0, parser->m_encoding,
+                      s, end, nextPtr,
+                      (XML_Bool)! parser->m_parsingStatus.finalBuffer,
+                      XML_ACCOUNT_DIRECT);
+    if (result == XML_ERROR_NONE) {
+      if (! storeRawNames(parser))
+        return XML_ERROR_NO_MEMORY;
+    }
+    return result;
   }
 }
 
diff --git a/tests/runtests.c b/tests/runtests.c
index ea371b4..193e103 100644
--- a/tests/runtests.c
+++ b/tests/runtests.c
@@ -5008,6 +5008,78 @@ START_TEST(test_resume_entity_with_syntax_error) {
 }
 END_TEST
 
+void
+suspending_comment_handler(void *userData, const XML_Char *UNUSED_P(data)) {
+  XML_Parser parser = (XML_Parser)userData;
+  XML_StopParser(parser, XML_TRUE);
+}
+
+START_TEST(test_suspend_resume_internal_entity_issue_629) {
+  const char *const text
+      = "<!DOCTYPE a [<!ENTITY e '<!--COMMENT-->a'>]><a>&e;<b>\n"
+        "<"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        "/>"
+        "</b></a>";
+  const size_t firstChunkSizeBytes = 54;
+
+  XML_Parser parser = XML_ParserCreate(NULL);
+  XML_SetUserData(parser, parser);
+  XML_SetCommentHandler(parser, suspending_comment_handler);
+
+  if (XML_Parse(parser, text, (int)firstChunkSizeBytes, XML_FALSE)
+      != XML_STATUS_SUSPENDED)
+    xml_failure(parser);
+  if (XML_ResumeParser(parser) != XML_STATUS_OK)
+    xml_failure(parser);
+  if (XML_Parse(parser, text + firstChunkSizeBytes,
+                (int)(strlen(text) - firstChunkSizeBytes), XML_TRUE)
+      != XML_STATUS_OK)
+    xml_failure(parser);
+  XML_ParserFree(parser);
+}
+END_TEST
+
+
 /* Test suspending and resuming in a parameter entity substitution */
 static void XMLCALL
 element_decl_suspender(void *userData, const XML_Char *name,
@@ -12017,6 +12089,7 @@ make_suite(void) {
   tcase_add_test(tc_basic, test_hash_collision);
   tcase_add_test__ifdef_xml_dtd(tc_basic, test_suspend_resume_internal_entity);
   tcase_add_test__ifdef_xml_dtd(tc_basic, test_resume_entity_with_syntax_error);
+  tcase_add_test__ifdef_xml_dtd(tc_basic, test_suspend_resume_internal_entity_issue_629);
   tcase_add_test__ifdef_xml_dtd(tc_basic, test_suspend_resume_parameter_entity);
   tcase_add_test(tc_basic, test_restart_on_error);
   tcase_add_test(tc_basic, test_reject_lt_in_attribute_value);