writerfilter/qa/cppunittests/ooxml/data/recursive_header_rels.docx |binary
writerfilter/qa/cppunittests/ooxml/ooxml.cxx | 7
+++++++
writerfilter/source/ooxml/OOXMLDocumentImpl.cxx | 3 ++-
writerfilter/source/ooxml/OOXMLDocumentImpl.hxx | 2 ++
4 files changed, 11 insertions(+), 1 deletion(-)
New commits:
commit 2872e5dc20212695b86085e083fec891f4a997d1
Author: Jaume Pujantell <jaume.pujant...@collabora.com>
AuthorDate: Fri May 17 16:44:12 2024 +0200
Commit: Miklos Vajna <vmik...@collabora.com>
CommitDate: Tue May 21 09:55:31 2024 +0200
writerfilter: avoid infinit loop when resolving embeddings on docx
If a docx file contains a loop on the .rels files for headers and/or footers
the code would enter an infinite recursion while looking for embeddings.
Change-Id: I2122fd6b1677812f561e96a9511a61b0e938e94a
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/167784
Reviewed-by: Miklos Vajna <vmik...@collabora.com>
Tested-by: Jenkins
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/167885
Tested-by: Jenkins CollaboraOffice <jenkinscollaboraoff...@gmail.com>
diff --git a/writerfilter/qa/cppunittests/ooxml/data/recursive_header_rels.docx
b/writerfilter/qa/cppunittests/ooxml/data/recursive_header_rels.docx
new file mode 100644
index 000000000000..8000760017ed
Binary files /dev/null and
b/writerfilter/qa/cppunittests/ooxml/data/recursive_header_rels.docx differ
diff --git a/writerfilter/qa/cppunittests/ooxml/ooxml.cxx
b/writerfilter/qa/cppunittests/ooxml/ooxml.cxx
index 32133df9ba7e..42c8d2222607 100644
--- a/writerfilter/qa/cppunittests/ooxml/ooxml.cxx
+++ b/writerfilter/qa/cppunittests/ooxml/ooxml.cxx
@@ -62,6 +62,13 @@ CPPUNIT_TEST_FIXTURE(Test, testFloatingTableLeak)
CPPUNIT_ASSERT(xParagraph->supportsService("com.sun.star.text.Paragraph"));
CPPUNIT_ASSERT(!xParaEnum->hasMoreElements());
}
+
+CPPUNIT_TEST_FIXTURE(Test, testRecursiveHeaderRels)
+{
+ // Given a document with self-referencing rels in a header/footer:
+ loadFromFile(u"recursive_header_rels.docx");
+ // It should not crash/hang on load
+}
}
CPPUNIT_PLUGIN_IMPLEMENT();
diff --git a/writerfilter/source/ooxml/OOXMLDocumentImpl.cxx
b/writerfilter/source/ooxml/OOXMLDocumentImpl.cxx
index c576aa330d46..933812275fda 100644
--- a/writerfilter/source/ooxml/OOXMLDocumentImpl.cxx
+++ b/writerfilter/source/ooxml/OOXMLDocumentImpl.cxx
@@ -762,8 +762,9 @@ void OOXMLDocumentImpl::resolveEmbeddingsStream(const
OOXMLStream::Pointer_t& pS
{
importSubStreamRelations(pStream, OOXMLStream::CHARTS);
}
- if(bHeaderFooterFound)
+ if (bHeaderFooterFound &&
!maSeenStreams.contains(customTarget))
{
+ maSeenStreams.insert(customTarget);
try
{
OOXMLStream::Pointer_t Stream =
OOXMLDocumentFactory::createStream(pStream, streamType);
diff --git a/writerfilter/source/ooxml/OOXMLDocumentImpl.hxx
b/writerfilter/source/ooxml/OOXMLDocumentImpl.hxx
index 1983ed2583a5..3cf39ba7663c 100644
--- a/writerfilter/source/ooxml/OOXMLDocumentImpl.hxx
+++ b/writerfilter/source/ooxml/OOXMLDocumentImpl.hxx
@@ -30,6 +30,7 @@
#include <vector>
#include <stack>
+#include <set>
namespace writerfilter::ooxml
{
@@ -55,6 +56,7 @@ class OOXMLDocumentImpl : public OOXMLDocument
css::uno::Reference<css::io::XInputStream> mxEmbeddings;
css::uno::Sequence < css::beans::PropertyValue > mxEmbeddingsList;
std::vector<css::beans::PropertyValue> m_aEmbeddings;
+ std::set<OUString> maSeenStreams;
bool mbIsSubstream;
bool mbSkipImages;
/// How many paragraphs equal to 1 percent?
