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gh-115136: Fix possible NULL deref in getpath_joinpath() (GH-115137) 

Signed-off-by: Artem Chernyshev <artem.chernyshev@red-soft.ru>
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Artem Chernyshev 2024-02-08 11:40:38 +03:00 committed by GitHub
parent 4a7f63869a
commit 9e90313320
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Modules/getpath.c
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@ -262,6 +262,10 @@ getpath_joinpath(PyObject *Py_UNUSED(self), PyObject *args)
}
/* Convert all parts to wchar and accumulate max final length */
wchar_t **parts = (wchar_t **)PyMem_Malloc(n * sizeof(wchar_t *));
if (parts == NULL) {
PyErr_NoMemory();
return NULL;
}
memset(parts, 0, n * sizeof(wchar_t *));
Py_ssize_t cchFinal = 0;
Py_ssize_t first = 0;