gh-146355: Fix main_module ref leak in _PyRun_SimpleStringFlagsWithName (#146356)

A0su · web-flow · commit 08f6b33bf32b · 2026-03-25T07:36:59.000+01:00
diff --git a/Python/pythonrun.c b/Python/pythonrun.c
@@ -567,6 +567,7 @@ _PyRun_SimpleStringFlagsWithName(const char *command, const char* name, PyCompil
         PyObject* the_name = PyUnicode_FromString(name);
         if (!the_name) {
             PyErr_Print();
+            Py_DECREF(main_module);
             return -1;
         }
         res = _PyRun_StringFlagsWithName(command, the_name, Py_file_input, dict, dict, flags, 0);

Original file line number	Diff line number	Diff line change
`@@ -567,6 +567,7 @@ _PyRun_SimpleStringFlagsWithName(const char command, const char name, PyCompil`
`567`	`567`	`PyObject* the_name = PyUnicode_FromString(name);`
`568`	`568`	`if (!the_name) {`
`569`	`569`	`PyErr_Print();`
	`570`	`+ Py_DECREF(main_module);`
`570`	`571`	`return -1;`
`571`	`572`	`}`
`572`	`573`	`res = _PyRun_StringFlagsWithName(command, the_name, Py_file_input, dict, dict, flags, 0);`