From: razmyslovich <razmyslovich@volumegraphics.com>
Date: Mon, 16 Jun 2014 14:18:23 +0000 (+0200)
Subject: 0025011: IntAna_QuaQuadGeo can crash with out-of-bounds exception
X-Git-Tag: V6_8_0_beta~260
X-Git-Url: http://git.dev.opencascade.org/gitweb/?p=occt.git;a=commitdiff_plain;h=a060129f7827c91b7413610d21228625f2e779c7

0025011: IntAna_QuaQuadGeo can crash with out-of-bounds exception

Fix the crash in IntAna_QuadQuadGeo by checking the number of intersections
---

diff --git a/src/IntAna/IntAna_QuadQuadGeo.cxx b/src/IntAna/IntAna_QuadQuadGeo.cxx
index 425b268..212306a 100644
--- a/src/IntAna/IntAna_QuadQuadGeo.cxx
+++ b/src/IntAna/IntAna_QuadQuadGeo.cxx
@@ -1516,7 +1516,7 @@ IntAna_QuadQuadGeo::IntAna_QuadQuadGeo(const gp_Cylinder& Cyl,
     gp_Pln aPln2(aQA2, aD3Ax2);
     //
     aIntr.Perform(aPln1, aPln2, Tol, Tol);
-    if (!aIntr.IsDone()) {
+    if (!aIntr.IsDone() || 0 == aIntr.NbSolutions()) {
       iRet=-1; // just in case. it must not be so
       typeres=IntAna_NoGeometricSolution; 
       return;