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Title: gh-146613: Fix re-entrant use-after-free in itertools._grouper by TheSkyC · Pull Request #147962 · python/cpython · GitHub

Open Graph Title: gh-146613: Fix re-entrant use-after-free in itertools._grouper by TheSkyC · Pull Request #147962 · python/cpython

X Title: gh-146613: Fix re-entrant use-after-free in itertools._grouper by TheSkyC · Pull Request #147962 · python/cpython

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Open Graph Description: Closes gh-146613 The same pattern was fixed in groupby.__next__ (gh-143543 / a91b5c3), but _grouper_next (the inner group iterator returned by groupby) was missed. A user-defined __eq__ can re-ente...

X Description: Closes gh-146613 The same pattern was fixed in groupby.__next__ (gh-143543 / a91b5c3), but _grouper_next (the inner group iterator returned by groupby) was missed. A user-defined __eq__ can re-ente...

Opengraph URL: https://github.com/python/cpython/pull/147962

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og:image:altCloses gh-146613 The same pattern was fixed in groupby.__next__ (gh-143543 / a91b5c3), but _grouper_next (the inner group iterator returned by groupby) was missed. A user-defined __eq__ can re-ente...
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itertools._grouper.__next__ has the same re-entrant use-after-free that was fixed in groupby.__next__ #146613 https://github.com/python/cpython/issues/146613
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itertools._grouperhttps://github.com/miss-islington/cpython/commit/e6d83253eaf5b73df7afc58c4a82920f41cc1652
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