Fix byteLength validation in DataView constructor (#3074)

This patch fixes #3072. JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu
2019-09-09 10:37:01 +02:00
parent c79659d3b2
commit e04bbdfff4
2 changed files with 28 additions and 0 deletions
@@ -118,6 +118,11 @@ ecma_op_dataview_create (const ecma_value_t *arguments_list_p, /**< arguments li
    }
    else if (ecma_number_is_infinity (byte_length))
    {
+      if (ecma_number_is_negative (byte_length))
+      {
+        return ecma_raise_range_error (ECMA_ERR_MSG ("Invalid DataView length"));
+      }
+
      viewByteLength = UINT32_MAX;
    }
    else if (byte_length_int32 <= 0)