[MXNET-953] Fix oob memory read

apache · Sep 25, 2018 · afefecf · afefecf
1 parent 76ae725
commit afefecf
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/src/operator/tensor/elemwise_unary_op_basic.cc b/src/operator/tensor/elemwise_unary_op_basic.cc
@@ -542,8 +542,7 @@ void SizeComputeCPU(const nnvm::NodeAttrs& attrs,
   CHECK_EQ(req.size(), 1U);
   const TBlob& in_data = inputs[0];
   const TBlob& out_data = outputs[0];
-  const index_t size_var = in_data.Size();
-  memcpy(out_data.dptr_, &size_var, 1U * sizeof(int64_t));
+  *static_cast<int64_t*>(out_data.dptr_) = in_data.Size();
 }
 
 NNVM_REGISTER_OP(size_array)