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[3.11] gh-101967: add a missing error check (GH-101968) (#102015)

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gh-101967: add a missing error check (GH-101968)
(cherry picked from commit 89413bbccb)

Co-authored-by: Eclips4 <80244920+Eclips4@users.noreply.github.com>
Co-authored-by: Shantanu <12621235+hauntsaninja@users.noreply.github.com>
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Miss Islington (bot) 2023-02-21 05:01:15 -08:00 • committed by GitHub
parent 78eee76185
commit 1633aea0e4
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Misc/NEWS.d/next/Core and Builtins/2023-02-16-23-19-01.gh-issue-101967.Kqr1dz.rst Normal file
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@ -0,0 +1 @@
Fix possible segfault in ``positional_only_passed_as_keyword`` function, when new list created.

4
Python/ceval.c
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@ -6006,7 +6006,9 @@ positional_only_passed_as_keyword(PyThreadState *tstate, PyCodeObject *co,
{
int posonly_conflicts = 0;
PyObject* posonly_names = PyList_New(0);
if (posonly_names == NULL) {
goto fail;
}
for(int k=0; k < co->co_posonlyargcount; k++){
PyObject* posonly_name = PyTuple_GET_ITEM(co->co_localsplusnames, k);