Make the various iterators' "setstate" sliently and consistently clip the
index. This avoids the possibility of setting an iterator to an invalid
state.
diff --git a/Objects/bytesobject.c b/Objects/bytesobject.c
index 9dcb74e..f6d16da 100644
--- a/Objects/bytesobject.c
+++ b/Objects/bytesobject.c
@@ -2996,9 +2996,13 @@
Py_ssize_t index = PyLong_AsSsize_t(state);
if (index == -1 && PyErr_Occurred())
return NULL;
- if (index < 0)
- index = 0;
- it->it_index = index;
+ if (it->it_seq != NULL) {
+ if (index < 0)
+ index = 0;
+ else if (index > PyBytes_GET_SIZE(it->it_seq))
+ index = PyBytes_GET_SIZE(it->it_seq); /* iterator exhausted */
+ it->it_index = index;
+ }
Py_RETURN_NONE;
}