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Fix leaks and LOAD_ATTR specialization

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This commit is contained in:
Dino Viehland 2025-10-08 16:16:50 -07:00
parent 0c246bc79d
commit d9ad012e5d
10 changed files with 107 additions and 51 deletions
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17
Python/ceval.c
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@ -3038,6 +3038,9 @@ check_lazy_import_comatibility(PyThreadState *tstate, PyObject *globals,
// Check if this module should be imported lazily due to the compatbility mode support via
// __lazy_modules__.
PyObject *lazy_modules = NULL;
PyObject *abs_name = NULL;
int res = -1;
if (globals != NULL &&
PyMapping_GetOptionalItem(globals, &_Py_ID(__lazy_modules__), &lazy_modules) < 0) {
return -1;
@ -3047,15 +3050,19 @@ check_lazy_import_comatibility(PyThreadState *tstate, PyObject *globals,
int ilevel = PyLong_AsInt(level);
if (ilevel == -1 && _PyErr_Occurred(tstate)) {
return -1;
goto error;
}
PyObject *abs_name = _PyImport_GetAbsName(tstate, name, globals, ilevel);
abs_name = _PyImport_GetAbsName(tstate, name, globals, ilevel);
if (abs_name == NULL) {
return -1;
goto error;
}
return PySequence_Contains(lazy_modules, abs_name);
res = PySequence_Contains(lazy_modules, abs_name);
error:
Py_XDECREF(abs_name);
Py_XDECREF(lazy_modules);
return res;
}
PyObject *
@ -3302,8 +3309,10 @@ _PyEval_LazyImportFrom(PyThreadState *tstate, PyObject *v, PyObject *name)
PyObject *mod_dict = PyModule_GetDict(mod);
if (mod_dict != NULL) {
if (PyDict_GetItemRef(mod_dict, name, &ret) < 0) {
Py_DECREF(mod);
return NULL;
} else if (ret != NULL) {
Py_DECREF(mod);
return ret;
}
}