diff --git a/Lib/test/json_tests/test_decode.py b/Lib/test/json_tests/test_decode.py
index 9fbaa3bdf89..4f7896e21fe 100644
--- a/Lib/test/json_tests/test_decode.py
+++ b/Lib/test/json_tests/test_decode.py
@@ -54,6 +54,15 @@ def test_keys_reuse(self):
         self.check_keys_reuse(s, self.loads)
         self.check_keys_reuse(s, self.json.decoder.JSONDecoder().decode)
 
+    def test_extra_data(self):
+        s = '[1, 2, 3]5'
+        msg = 'Extra data'
+        self.assertRaisesRegexp(ValueError, msg, self.loads, s)
+
+    def test_invalid_escape(self):
+        s = '["abc\\y"]'
+        msg = 'escape'
+        self.assertRaisesRegexp(ValueError, msg, self.loads, s)
 
 class TestPyDecode(TestDecode, PyTest): pass
 class TestCDecode(TestDecode, CTest): pass
diff --git a/Misc/ACKS b/Misc/ACKS
index 6e2a20aae1a..b412fa1c9fd 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -238,6 +238,7 @@ Evan Dandrea
 Eric Daniel
 Scott David Daniels
 Ben Darnell
+Kushal Das
 Jonathan Dasteel
 Pierre-Yves David
 Xavier de Gaye
diff --git a/Misc/NEWS b/Misc/NEWS
index a40d129b461..3b7576c4c89 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -52,6 +52,11 @@ Documentation
 - Issue #15630: Add an example for "continue" stmt in the tutorial. Patch by
   Daniel Ellis.
 
+Tests
+-----
+
+- Issue #15615: Add some tests for the json module's handling of invalid
+  input data.  Patch by Kushal Das.
 
 
 What's New in Python 3.3.0 Beta 2?