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[3.11] gh-98783: Fix crashes when str subclasses are used in _PyUnicode_Equal (GH-98806) (#98871)

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* gh-98783: Fix crashes when `str` subclasses are used in `_PyUnicode_Equal` (GH-98806)
(cherry picked from commit 76f989dc3e)

Co-authored-by: Nikita Sobolev <mail@sobolevn.me>
This commit is contained in:
Dennis Sweeney 2022-10-30 14:30:08 -04:00 • committed by GitHub
parent a55bd6f884
commit 5efe2eead3
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4 changed files with 35 additions and 2 deletions
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Objects/unicodeobject.c
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@ -11134,8 +11134,8 @@ unicode_compare_eq(PyObject *str1, PyObject *str2)
int
_PyUnicode_Equal(PyObject *str1, PyObject *str2)
{
assert(PyUnicode_CheckExact(str1));
assert(PyUnicode_CheckExact(str2));
assert(PyUnicode_Check(str1));
assert(PyUnicode_Check(str2));
if (str1 == str2) {
return 1;
}