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Title: gh-143543: Fix re-entrant use-after-free in itertools.groupby by VanshAgarwal24036 · Pull Request #143738 · python/cpython · GitHub

Open Graph Title: gh-143543: Fix re-entrant use-after-free in itertools.groupby by VanshAgarwal24036 · Pull Request #143738 · python/cpython

X Title: gh-143543: Fix re-entrant use-after-free in itertools.groupby by VanshAgarwal24036 · Pull Request #143738 · python/cpython

Description: The Python programming language. Contribute to python/cpython development by creating an account on GitHub.

Open Graph Description: Fix a use-after-free in itertools.groupby when a user-defined eq re-enters next(groupby) during key comparison. groupby_next() compared borrowed references to currkey and tgtkey using PyObject_Rich...

X Description: Fix a use-after-free in itertools.groupby when a user-defined eq re-enters next(groupby) during key comparison. groupby_next() compared borrowed references to currkey and tgtkey using PyObject_Rich...

Opengraph URL: https://github.com/python/cpython/pull/143738

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