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-rw-r--r--miasm/loader/pe_init.py4
1 files changed, 3 insertions, 1 deletions
diff --git a/miasm/loader/pe_init.py b/miasm/loader/pe_init.py
index 3e0c660e..202a7b00 100644
--- a/miasm/loader/pe_init.py
+++ b/miasm/loader/pe_init.py
@@ -46,8 +46,10 @@ class ContectRva(object):
         @rva_start: rva start address
         @rva_stop: rva stop address
         """
+        if rva_start is None:
+            raise IOError("Out of range")
         if rva_start < 0:
-            raise ValueError("Out of range")
+            raise IOError("Out of range")
         if rva_stop is not None:
             if rva_stop > len(self.parent.img_rva):
                 rva_stop = len(self.parent.img_rva)