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[3.13] gh-122712: Guard against __code__ reassignment in CALL_ALLOC_AND_ENTER_INIT (GH-122713) (GH-123184)

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mpage 2024-08-21 05:16:30 -07:00 • committed by GitHub
parent 159db050f4
commit 50a595b37f
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3 changed files with 36 additions and 7 deletions
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Python/bytecodes.c
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@ -3407,6 +3407,8 @@ dummy_func(
PyFunctionObject *init = (PyFunctionObject *)cls->_spec_cache.init;
PyCodeObject *code = (PyCodeObject *)init->func_code;
DEOPT_IF(code->co_argcount != oparg+1);
DEOPT_IF((code->co_flags & (CO_VARKEYWORDS | CO_VARARGS | CO_OPTIMIZED)) != CO_OPTIMIZED);
DEOPT_IF(code->co_kwonlyargcount);
DEOPT_IF(!_PyThreadState_HasStackSpace(tstate, code->co_framesize + _Py_InitCleanup.co_framesize));
STAT_INC(CALL, hit);
PyObject *self = _PyType_NewManagedObject(tp);