ofz: infinite loop

Change-Id: Ie515421f484c63d07f10e8551464c7dc11facb73
Reviewed-on: https://gerrit.libreoffice.org/50001
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

1 files changed, 7 insertions, 1 deletions

diff --git a/lotuswordpro/source/filter/lwprowlayout.cxx b/lotuswordpro/source/filter/lwprowlayout.cxx
index 02d9d221b304..ca1f43979e09 100644
--- a/lotuswordpro/source/filter/lwprowlayout.cxx
+++ b/lotuswordpro/source/filter/lwprowlayout.cxx
@@ -140,12 +140,18 @@ void LwpRowLayout::RegisterStyle()
     LwpObjectID& rCellID= GetChildHead();
     LwpCellLayout * pCellLayout = dynamic_cast<LwpCellLayout *>(rCellID.obj().get());
 
-    while(pCellLayout)
+    std::set<LwpCellLayout*> aSeen;
+    while (pCellLayout)
     {
+        aSeen.insert(pCellLayout);
+
         pCellLayout->SetFoundry(m_pFoundry);
         pCellLayout->RegisterStyle();
         rCellID = pCellLayout->GetNext();
         pCellLayout = dynamic_cast<LwpCellLayout *>(rCellID.obj().get());
+
+        if (aSeen.find(pCellLayout) != aSeen.end())
+            throw std::runtime_error("loop in conversion");
     }
 
 }