Index: lib/Object/COFFObjectFile.cpp
===================================================================
--- lib/Object/COFFObjectFile.cpp
+++ lib/Object/COFFObjectFile.cpp
@@ -829,11 +829,21 @@
   // within the file bounds. We don't need to make sure it doesn't cover other
   // data, as there's nothing that says that is not allowed.
   uintptr_t ConStart = uintptr_t(base()) + Sec->PointerToRawData;
-  uintptr_t ConEnd = ConStart + Sec->SizeOfRawData;
+  // COFF requires sections to follow certain alignment rules in PE
+  // files. Thus (in a PE file) a section's actual data may be smaller
+  // than SizeOfRawData.
+  // Since for debug sections later on the actual data matters, we take
+  // the min of SizeOfRawData and VirtualSize which is the acutal size
+  // of the data.
+  uintptr_t Size = Sec->SizeOfRawData;
+  // COFF Object files always have VirtualSize set to 0
+  if (Sec->VirtualSize != 0)
+    Size = std::min(Size,(uintptr_t)Sec->VirtualSize);
+  uintptr_t ConEnd = ConStart + Size;
   if (ConEnd > uintptr_t(Data->getBufferEnd()))
     return object_error::parse_failed;
   Res = ArrayRef<uint8_t>(reinterpret_cast<const unsigned char*>(ConStart),
-                          Sec->SizeOfRawData);
+                          Size);
   return object_error::success;
 }