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[3.11] gh-107913: Fix possible losses of OSError error codes (GH-107930) (GH-108524)

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Functions like PyErr_SetFromErrno() and SetFromWindowsErr() should be
called immediately after using the C API which sets errno or the Windows
error code.
(cherry picked from commit 2b15536fa9)
This commit is contained in:
Serhiy Storchaka 2023-08-27 15:18:58 +03:00 • committed by GitHub
parent 8a275f7c01
commit b9fc536399
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17 changed files with 129 additions and 77 deletions
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Modules/getpath.c
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@ -347,11 +347,12 @@ getpath_readlines(PyObject *Py_UNUSED(self), PyObject *args)
return NULL;
}
FILE *fp = _Py_wfopen(path, L"rb");
PyMem_Free((void *)path);
if (!fp) {
PyErr_SetFromErrno(PyExc_OSError);
PyMem_Free((void *)path);
return NULL;
}
PyMem_Free((void *)path);
r = PyList_New(0);
if (!r) {