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Title: [3.13] gh-143543: Fix re-entrant use-after-free in itertools.groupby (GH-143738) by miss-islington · Pull Request #144627 · python/cpython · GitHub

Open Graph Title: [3.13] gh-143543: Fix re-entrant use-after-free in itertools.groupby (GH-143738) by miss-islington · Pull Request #144627 · python/cpython

X Title: [3.13] gh-143543: Fix re-entrant use-after-free in itertools.groupby (GH-143738) by miss-islington · Pull Request #144627 · python/cpython

Description: (cherry picked from commit a91b5c3) Co-authored-by: VanshAgarwal24036 148854295+VanshAgarwal24036@users.noreply.github.com Co-authored-by: Sergey B Kirpichev skirpichev@gmail.com Co-authored-by: Petr Viktorin encukou@gmail.com Issue: gh-143543

Open Graph Description: (cherry picked from commit a91b5c3) Co-authored-by: VanshAgarwal24036 148854295+VanshAgarwal24036@users.noreply.github.com Co-authored-by: Sergey B Kirpichev skirpichev@gmail.com Co-authored-by: Pe...

X Description: (cherry picked from commit a91b5c3) Co-authored-by: VanshAgarwal24036 148854295+VanshAgarwal24036@users.noreply.github.com Co-authored-by: Sergey B Kirpichev skirpichev@gmail.com Co-authored-by: Pe...

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[3.13] gh-143543: Fix re-entrant use-after-free in itertools.groupby (GH-143738) https://github.com/python/cpython/pull/144627/files#top
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685598b gh-143543: Fix re-entrant use-after-free in itertools.groupby (GH-143… VanshAgarwal24036 Feb 9, 2026 https://github.com/python/cpython/pull/144627/commits/685598bb2283e035bc1fde42010f2c8de94f8198
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