Index: Objects/bytearrayobject.c
===================================================================
--- Objects/bytearrayobject.c	(revision 88733)
+++ Objects/bytearrayobject.c	(working copy)
@@ -2309,8 +2309,8 @@
         return NULL;
 
     if (n == 0) {
-        PyErr_SetString(PyExc_OverflowError,
-                        "cannot pop an empty bytearray");
+        PyErr_SetString(PyExc_IndexError,
+                        "pop from empty bytearray");
         return NULL;
     }
     if (where < 0)
Index: Misc/NEWS
===================================================================
--- Misc/NEWS	(revision 88733)
+++ Misc/NEWS	(working copy)
@@ -49,6 +49,9 @@
 
 - Issue #10516: New copy() and clear() methods for lists and bytearrays.
 
+- Issue #11386: bytearray.pop() now throws IndexError when the bytearray is
+  empty, instead of OverflowError.
+
 Library
 -------
 
Index: Lib/test/test_bytes.py
===================================================================
--- Lib/test/test_bytes.py	(revision 88733)
+++ Lib/test/test_bytes.py	(working copy)
@@ -790,7 +790,7 @@
         self.assertEqual(b.pop(0), ord('w'))
         self.assertEqual(b.pop(-2), ord('r'))
         self.assertRaises(IndexError, lambda: b.pop(10))
-        self.assertRaises(OverflowError, lambda: bytearray().pop())
+        self.assertRaises(IndexError, lambda: bytearray().pop())
         # test for issue #6846
         self.assertEqual(bytearray(b'\xff').pop(), 0xff)