From dec56592ddc4f7748b176c4c13041dd76cc7a532 Mon Sep 17 00:00:00 2001
From: ichesnok <ichesnok@opencascade.com>
Date: Thu, 18 Jan 2024 13:55:38 +0000
Subject: [PATCH] 0032980: Data Exchange - STEP import produce a crash

Check on null for loop added
---
 src/StepToTopoDS/StepToTopoDS_TranslateFace.cxx | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/StepToTopoDS/StepToTopoDS_TranslateFace.cxx b/src/StepToTopoDS/StepToTopoDS_TranslateFace.cxx
index 4c0462a2c6..8e9804c5b7 100644
--- a/src/StepToTopoDS/StepToTopoDS_TranslateFace.cxx
+++ b/src/StepToTopoDS/StepToTopoDS_TranslateFace.cxx
@@ -545,7 +545,10 @@ void StepToTopoDS_TranslateFace::Init(const Handle(StepShape_FaceSurface)& FS,
 #endif    
     FaceBound = FS->BoundsValue(i);
     Loop      = FaceBound->Bound();
-    
+    if (Loop.IsNull())
+    {
+      continue;
+    }
     // ------------------------
     // The Loop is a VertexLoop
     // ------------------------