https://github.com/python/cpython/commit/634568d030f18183212c01bd4544aa7f97e05442
commit: 634568d030f18183212c01bd4544aa7f97e05442
branch: main
author: Prakash Sellathurai <[email protected]>
committer: JelleZijlstra <[email protected]>
date: 2026-04-17T17:21:13-07:00
summary:
gh-148222: Fix NULL dereference bugs in genericaliasobject.c (#148226)
files:
A
Misc/NEWS.d/next/Core_and_Builtins/2026-04-07-20-37-23.gh-issue-148222.uF4D4E.rst
M Objects/genericaliasobject.c
diff --git
a/Misc/NEWS.d/next/Core_and_Builtins/2026-04-07-20-37-23.gh-issue-148222.uF4D4E.rst
b/Misc/NEWS.d/next/Core_and_Builtins/2026-04-07-20-37-23.gh-issue-148222.uF4D4E.rst
new file mode 100644
index 00000000000000..2c273fc4daba3d
--- /dev/null
+++
b/Misc/NEWS.d/next/Core_and_Builtins/2026-04-07-20-37-23.gh-issue-148222.uF4D4E.rst
@@ -0,0 +1 @@
+Fix vectorcall support in :class:`types.GenericAlias` when the underlying type
does not support the vectorcall protocol. Fix possible leaks in
:class:`types.GenericAlias` and :class:`types.UnionType` in case of memory
error.
diff --git a/Objects/genericaliasobject.c b/Objects/genericaliasobject.c
index 7aef56cf4e93b8..e3bc8eb2739e3f 100644
--- a/Objects/genericaliasobject.c
+++ b/Objects/genericaliasobject.c
@@ -242,7 +242,6 @@ _Py_make_parameters(PyObject *args)
len += needed;
if (_PyTuple_Resize(¶meters, len) < 0) {
Py_DECREF(subparams);
- Py_DECREF(parameters);
Py_XDECREF(tuple_args);
return NULL;
}
@@ -650,7 +649,7 @@ ga_vectorcall(PyObject *self, PyObject *const *args,
size_t nargsf, PyObject *kwnames)
{
gaobject *alias = (gaobject *) self;
- PyObject *obj = PyVectorcall_Function(alias->origin)(alias->origin, args,
nargsf, kwnames);
+ PyObject *obj = PyObject_Vectorcall(alias->origin, args, nargsf, kwnames);
return set_orig_class(obj, self);
}
_______________________________________________
Python-checkins mailing list -- [email protected]
To unsubscribe send an email to [email protected]
https://mail.python.org/mailman3//lists/python-checkins.python.org
Member address: [email protected]
