Merge cherrypicks of ['ag/20497961'] into tm-qpr1-release.android-13.0.0_r30android-13.0.0_r29android-13.0.0_r28android-13.0.0_r27android13-qpr1-s8-releaseandroid13-qpr1-s7-releaseandroid13-qpr1-s6-releaseandroid13-qpr1-release

Change-Id: Ic5d7aa2ed46828a29153cae6a457ff80efb57f58

1 files changed, 8 insertions, 0 deletions

diff --git a/lib/xmlparse.c b/lib/xmlparse.c
index 7db28d07..7e981919 100644
--- a/lib/xmlparse.c
+++ b/lib/xmlparse.c
@@ -1066,6 +1066,14 @@ parserCreate(const XML_Char *encodingName,
   parserInit(parser, encodingName);
 
   if (encodingName && ! parser->m_protocolEncodingName) {
+    if (dtd) {
+      // We need to stop the upcoming call to XML_ParserFree from happily
+      // destroying parser->m_dtd because the DTD is shared with the parent
+      // parser and the only guard that keeps XML_ParserFree from destroying
+      // parser->m_dtd is parser->m_isParamEntity but it will be set to
+      // XML_TRUE only later in XML_ExternalEntityParserCreate (or not at all).
+      parser->m_dtd = NULL;
+    }
     XML_ParserFree(parser);
     return NULL;
   }