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bpo-32402: io: Add missing NULL check. (GH-4971)

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_PyUnicode_FromId() may return NULL.

Reported by coverity scan: CID 1426868, 1426867.
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INADA Naoki 2017-12-24 10:29:19 +09:00 • committed by GitHub
parent 719ccbca69
commit 4856b0f34a
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1 changed files with 6 additions and 0 deletions
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6
Modules/_io/textio.c
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@ -1037,6 +1037,9 @@ _io_TextIOWrapper___init___impl(textio *self, PyObject *buffer,
if (errors == Py_None) {
errors = _PyUnicode_FromId(&PyId_strict); /* borrowed */
if (errors == NULL) {
return -1;
}
}
else if (!PyUnicode_Check(errors)) {
// Check 'errors' argument here because Argument Clinic doesn't support
@ -1249,6 +1252,9 @@ textiowrapper_change_encoding(textio *self, PyObject *encoding,
}
else if (errors == Py_None) {
errors = _PyUnicode_FromId(&PyId_strict);
if (errors == NULL) {
return -1;
}
}
const char *c_errors = PyUnicode_AsUTF8(errors);