From: Dong-hee Na <donghee.na@python.org>
Date: Tue, 8 Feb 2022 05:22:13 +0000 (+0900)
Subject: bpo-46323 Fix ref leak if ctypes.CFuncPtr raises an error. (GH-31209)
X-Git-Tag: v3.11.0a6~275
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=e959dd9f5c1d8865d4e10c49eb30ee0a4fe2735d;p=thirdparty%2FPython%2Fcpython.git

bpo-46323 Fix ref leak if ctypes.CFuncPtr raises an error. (GH-31209)
---

diff --git a/Modules/_ctypes/_ctypes.c b/Modules/_ctypes/_ctypes.c
index da9dd096c73d..15eb7521baa1 100644
--- a/Modules/_ctypes/_ctypes.c
+++ b/Modules/_ctypes/_ctypes.c
@@ -2392,6 +2392,7 @@ converters_from_argtypes(PyObject *ob)
 
     Py_ssize_t nArgs = PyTuple_GET_SIZE(ob);
     if (nArgs > CTYPES_MAX_ARGCOUNT) {
+        Py_DECREF(ob);
         PyErr_Format(PyExc_ArgError,
                      "_argtypes_ has too many arguments (%zi), maximum is %i",
                      nArgs, CTYPES_MAX_ARGCOUNT);