From de98e8594cd884c815f1444832593125b9d88417 Mon Sep 17 00:00:00 2001
From: geay <anthony.geay@cea.fr>
Date: Fri, 28 Mar 2014 10:58:07 +0100
Subject: [PATCH] Protect MEDCouplingUMesh::IntersectMeshes against agressive
 users.

---
 .../Geometric2D/InterpKernelGeo2DQuadraticPolygon.cxx       | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/INTERP_KERNEL/Geometric2D/InterpKernelGeo2DQuadraticPolygon.cxx b/src/INTERP_KERNEL/Geometric2D/InterpKernelGeo2DQuadraticPolygon.cxx
index 9721d1fc9..a1df7ca5c 100644
--- a/src/INTERP_KERNEL/Geometric2D/InterpKernelGeo2DQuadraticPolygon.cxx
+++ b/src/INTERP_KERNEL/Geometric2D/InterpKernelGeo2DQuadraticPolygon.cxx
@@ -1120,6 +1120,7 @@ std::list<QuadraticPolygon *>::iterator QuadraticPolygon::fillAsMuchAsPossibleWi
   if(!direction)
     it.previousLoop();
   Node *nodeToTest;
+  int szMax(pol1Splitted.size()+1),ii(0);// here a protection against agressive users of IntersectMeshes of invalid input meshes
   std::list<QuadraticPolygon *>::iterator ret;
   do
     {
@@ -1133,8 +1134,11 @@ std::list<QuadraticPolygon *>::iterator QuadraticPolygon::fillAsMuchAsPossibleWi
       ret=CheckInList(nodeToTest,iStart,iEnd);
       if(completed())
         return iEnd;
+      ii++;
     }
-  while(ret==iEnd);
+  while(ret==iEnd && ii<szMax);
+  if(ii==szMax)// here a protection against agressive users of IntersectMeshes of invalid input meshes
+    throw INTERP_KERNEL::Exception("QuadraticPolygon::fillAsMuchAsPossibleWith : Something is invalid with input polygons !");
   return ret;
 }
 
-- 
2.39.2