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gh-132909: handle overflow for `'K'` format in `do_mkvalue` (#132911)
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@ -669,6 +669,8 @@ Building values
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``L`` (:class:`int`) [long long]
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Convert a C :c:expr:`long long` to a Python integer object.
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.. _capi-py-buildvalue-format-K:
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``K`` (:class:`int`) [unsigned long long]
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Convert a C :c:expr:`unsigned long long` to a Python integer object.
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@ -0,0 +1,2 @@
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Fix an overflow when handling the :ref:`K <capi-py-buildvalue-format-K>` format
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in :c:func:`Py_BuildValue`. Patch by Bénédikt Tran.
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@ -321,7 +321,8 @@ do_mkvalue(const char **p_format, va_list *p_va)
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return PyLong_FromLongLong((long long)va_arg(*p_va, long long));
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case 'K':
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return PyLong_FromUnsignedLongLong((long long)va_arg(*p_va, unsigned long long));
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return PyLong_FromUnsignedLongLong(
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va_arg(*p_va, unsigned long long));
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case 'u':
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{
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