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Correct overflow check in PyTuple_New() (GH-14838)

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Sergey Fedoseev 2019-09-10 01:40:58 +05:00 • committed by T. Wouters
parent 832e864008
commit 755d4ef824
1 changed files with 2 additions and 2 deletions
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4
Objects/tupleobject.c
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@ -120,8 +120,8 @@ tuple_alloc(Py_ssize_t size)
#endif #endif
{ {
/* Check for overflow */ /* Check for overflow */
if ((size_t)size > ((size_t)PY_SSIZE_T_MAX - sizeof(PyTupleObject) - if ((size_t)size > ((size_t)PY_SSIZE_T_MAX - (sizeof(PyTupleObject) -
sizeof(PyObject *)) / sizeof(PyObject *)) { sizeof(PyObject *))) / sizeof(PyObject *)) {
return (PyTupleObject *)PyErr_NoMemory(); return (PyTupleObject *)PyErr_NoMemory();
} }
op = PyObject_GC_NewVar(PyTupleObject, &PyTuple_Type, size); op = PyObject_GC_NewVar(PyTupleObject, &PyTuple_Type, size);