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[3.12] gh-120811: Fix reference leak upon _PyContext_Exit failure (GH-120812) (#120844)

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gh-120811: Fix reference leak upon `_PyContext_Exit` failure (GH-120812)
(cherry picked from commit aed31beca9)

Co-authored-by: Peter <zintensitydev@gmail.com>
Co-authored-by: Kumar Aditya <kumaraditya@python.org>
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Miss Islington (bot) 2024-06-22 13:14:31 +02:00 • committed by GitHub
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Misc/NEWS.d/next/Library/2024-06-21-14-32-56.gh-issue-120811.eBmVTV.rst Normal file
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@ -0,0 +1 @@
Fix possible memory leak in :meth:`contextvars.Context.run`.

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Python/context.c
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@ -669,6 +669,7 @@ context_run(PyContext *self, PyObject *const *args,
ts, args[0], args + 1, nargs - 1, kwnames); ts, args[0], args + 1, nargs - 1, kwnames);
if (_PyContext_Exit(ts, (PyObject *)self)) { if (_PyContext_Exit(ts, (PyObject *)self)) {
Py_XDECREF(call_result);
return NULL; return NULL;
} }