Fix memory leak in PyCStructUnionType_update_stginfo

sergey-miryanov · sergey-miryanov · commit a4f84682eda3 · 2025-03-16T02:01:39.000+05:00
diff --git a/Modules/_ctypes/stgdict.c b/Modules/_ctypes/stgdict.c
@@ -267,6 +267,7 @@ PyCStructUnionType_update_stginfo(PyObject *type, PyObject *fields, int isStruct
         &_Py_ID(is_struct),
         &_Py_ID(base));
     if (!kwnames) {
+        Py_DECREF(layout_func);
         goto error;
     }
     layout = PyObject_Vectorcall(

Original file line number	Diff line number	Diff line change
`@@ -267,6 +267,7 @@ PyCStructUnionType_update_stginfo(PyObject type, PyObject fields, int isStruct`
`267`	`267`	`&_Py_ID(is_struct),`
`268`	`268`	`&_Py_ID(base));`
`269`	`269`	`if (!kwnames) {`
	`270`	`+ Py_DECREF(layout_func);`
`270`	`271`	`goto error;`
`271`	`272`	`}`
`272`	`273`	`layout = PyObject_Vectorcall(`