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

AdamKorcz

Signed-off-by: Adam <adam@Adam-Workstation.lan>

Add a test covering truncated multi-byte UTF-8 sequences at end of input.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

AdamKorcz changed the title ~~oss-fuzz-451112368: fix found crash~~ gh-144872: fix found crash

Signed-off-by: Adam Korczynski <adam@adalogics.com>

AdamKorcz changed the title ~~gh-144872: fix found crash~~ gh-144872: fix heap buffer overflow

…9_Q30.rst

Co-authored-by: AN Long <aisk@users.noreply.github.com>

Co-authored-by: AN Long <aisk@users.noreply.github.com>

StanFromIreland changed the title ~~gh-144872: fix heap buffer overflow~~ gh-144872: fix heap buffer overflow _PyTokenizer_ensure_utf8

miss-islington pushed a commit to miss-islington/cpython that referenced this pull request

…ythonGH-144807)

(cherry picked from commit 3fc945d)

Co-authored-by: AdamKorcz <44787359+AdamKorcz@users.noreply.github.com>

pablogsal pushed a commit that referenced this pull request

…GH-144807) (#145287)

Co-authored-by: AdamKorcz <44787359+AdamKorcz@users.noreply.github.com>

brijkapadia pushed a commit to brijkapadia/cpython that referenced this pull request

StanFromIreland pushed a commit to StanFromIreland/cpython that referenced this pull request

…_utf8` (pythonGH-144807)

(cherry picked from commit 3fc945d)

Co-authored-by: AdamKorcz <44787359+AdamKorcz@users.noreply.github.com>

pablogsal pushed a commit that referenced this pull request

…GH-144807) (#145441)

(cherry picked from commit 3fc945d)

Co-authored-by: AdamKorcz <44787359+AdamKorcz@users.noreply.github.com>

ljfp pushed a commit to ljfp/cpython that referenced this pull request