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Title: gh-144872: fix heap buffer overflow `_PyTokenizer_ensure_utf8` by AdamKorcz · Pull Request #144807 · python/cpython · GitHub

Open Graph Title: gh-144872: fix heap buffer overflow `_PyTokenizer_ensure_utf8` by AdamKorcz · Pull Request #144807 · python/cpython

X Title: gh-144872: fix heap buffer overflow `_PyTokenizer_ensure_utf8` by AdamKorcz · Pull Request #144807 · python/cpython

Description: Fixes https://issues.oss-fuzz.com/issues/451112368 and #144872 cc @ammaraskar Issue: gh-144872

Open Graph Description: Fixes https://issues.oss-fuzz.com/issues/451112368 and #144872 cc @ammaraskar Issue: gh-144872

X Description: Fixes https://issues.oss-fuzz.com/issues/451112368 and #144872 cc @ammaraskar Issue: gh-144872

Opengraph URL: https://github.com/python/cpython/pull/144807

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d30f29a oss-fuzz-451112368: fix found crash Feb 13, 2026 https://github.com/python/cpython/pull/144807/commits/d30f29ade144f735a23371b865244cb1fc165949
e9b3683 Add a regression test for oss-fuzz-451112368 gpshead Feb 14, 2026 https://github.com/python/cpython/pull/144807/commits/e9b36833032fd681bb99c49b519b0f66c47f7c20
2aa5f1e add NEWS entry AdamKorcz Feb 16, 2026 https://github.com/python/cpython/pull/144807/commits/2aa5f1e97c9f50f71dfd173f1ab006ac98c64a5f
8eba1c7 Update Misc/NEWS.d/next/Library/2026-02-16-12-28-43.gh-issue-144872.k… AdamKorcz Feb 16, 2026 https://github.com/python/cpython/pull/144807/commits/8eba1c71ecd894714bdc921abe0c47704e338534
9edd6f8 Update Parser/tokenizer/helpers.c AdamKorcz Feb 16, 2026 https://github.com/python/cpython/pull/144807/commits/9edd6f8868e836460ab76e2417e2418286ee1b48
56d99c2 gh-144872: move NEWS entry to Core_and_Builtins pablogsal Feb 26, 2026 https://github.com/python/cpython/pull/144807/commits/56d99c24e2f78c2d8ae0769d2722c79b1b2bc18a
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