diff --git a/openpilot/selfdrive/modeld/helpers.py b/openpilot/selfdrive/modeld/helpers.py
index d081050055..0fdd1629ba 100644
--- a/openpilot/selfdrive/modeld/helpers.py
+++ b/openpilot/selfdrive/modeld/helpers.py
@@ -41,7 +41,8 @@ def load_oob(f):
   def buffers():
     while (h := f.read(8)):
       pb = pickle.PickleBuffer(bytearray(struct.unpack('<q', h)[0]))
-      f.readinto(pb)
+      if f.readinto(pb) != pb.raw().nbytes:
+        raise EOFError("incomplete model buffer")
       yield pb
   return pickle.load(io.BytesIO(opcodes), buffers=buffers())