commit a02683ac38183fa3a45c32319dfd329c5e622f0e
author Pablo Galindo <Pablogsal@gmail.com> Wed Mar 24 01:42:13 2021 +0000
committer GitHub <noreply@github.com> Wed Mar 24 01:42:13 2021 +0000
tree e69586260419b20d7ea13037e58dcccc9dec1b2d
parent 8370e07e1e5b626e78ddc7aadbfaf248976c4454

bpo-31861: Fix reference leak in builtin_anext_impl() (GH-25008)

Python/bltinmodule.c

diff --git a/Python/bltinmodule.c b/Python/bltinmodule.c
index d08e9a3..a076006 100644
--- a/Python/bltinmodule.c
+++ b/Python/bltinmodule.c
@@ -1660,7 +1660,10 @@ builtin_anext_impl(PyObject *module, PyObject *aiterator,
         return awaitable;
     }
 
-    return PyAnextAwaitable_New(awaitable, default_value);
+    PyObject* new_awaitable = PyAnextAwaitable_New(
+            awaitable, default_value);
+    Py_DECREF(awaitable);
+    return new_awaitable;
 }