pythoncapi
diff --git a/‎Lib/test/test_audioop.py‎
Lines changed: 5 additions & 0 deletions b/‎Lib/test/test_audioop.py‎
Lines changed: 5 additions & 0 deletions
diff --git a/‎Modules/audioop.c‎
Lines changed: 6 additions & 0 deletions b/‎Modules/audioop.c‎
Lines changed: 6 additions & 0 deletions
@@ -269,6 +269,11 @@ def test_lin2adpcm(self):
             self.assertEqual(audioop.lin2adpcm(b'\0' * w * 10, w, None),
                              (b'\0' * 5, (0, 0)))
 
+    def test_invalid_adpcm_state(self):
+        # state must be a tuple or None, not an integer
+        self.assertRaises(TypeError, audioop.adpcm2lin, b'\0', 1, 555)
+        self.assertRaises(TypeError, audioop.lin2adpcm, b'\0', 1, 555)
+
     def test_lin2alaw(self):
         self.assertEqual(audioop.lin2alaw(datas[1], 1),
                          b'\xd5\x87\xa4\x24\xaa\x2a\x5a')
 
@@ -1525,6 +1525,9 @@ audioop_lin2adpcm(PyObject *self, PyObject *args)
         /* First time, it seems. Set defaults */
         valpred = 0;
         index = 0;
+    } else if (!PyTuple_Check(state)) {
+        PyErr_SetString(PyExc_TypeError, "state must be a tuple or None");
+        goto exit;
     } else if (!PyArg_ParseTuple(state, "ii", &valpred, &index))
         goto exit;
 
@@ -1631,6 +1634,9 @@ audioop_adpcm2lin(PyObject *self, PyObject *args)
         /* First time, it seems. Set defaults */
         valpred = 0;
         index = 0;
+    } else if (!PyTuple_Check(state)) {
+        PyErr_SetString(PyExc_TypeError, "state must be a tuple or None");
+        goto exit;
     } else if (!PyArg_ParseTuple(state, "ii", &valpred, &index))
         goto exit;