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[3.13] gh-121285: Remove backtracking when parsing tarfile headers (GH-121286) by miss-islington · Pull Request #123542 · python/cpython · GitHub
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[3.13] gh-121285: Remove backtracking when parsing tarfile headers (GH-121286) #123542

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Merged
merged 1 commit into from
Sep 2, 2024
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[3.13] gh-121285: Remove backtracking when parsing tarfile headers (GH-121286) #123542

merged 1 commit into from
Sep 2, 2024

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@miss-islington miss-islington commented Aug 31, 2024 •
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  • Remove backtracking when parsing tarfile headers
  • Rewrite PAX header parsing to be stricter
  • Optimize parsing of GNU extended sparse headers v0.0

(cherry picked from commit 34ddb64)

Co-authored-by: Seth Michael Larson seth@python.org
Co-authored-by: Kirill Podoprigora kirill.bast9@mail.ru
Co-authored-by: Gregory P. Smith greg@krypto.org

@sethmlarson @Eclips4
@gpshead @miss-islington
pythongh-121285: Remove backtracking when parsing tarfile headers (py…
c47341f 
…thonGH-121286)

* Remove backtracking when parsing tarfile headers
* Rewrite PAX header parsing to be stricter
* Optimize parsing of GNU extended sparse headers v0.0

(cherry picked from commit 34ddb64)

Co-authored-by: Seth Michael Larson <seth@python.org>
Co-authored-by: Kirill Podoprigora <kirill.bast9@mail.ru>
Co-authored-by: Gregory P. Smith <greg@krypto.org>
@bedevere-app bedevere-app bot mentioned this pull request Aug 31, 2024
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@bedevere-app bedevere-app bot added the type-security A security issue label Aug 31, 2024
@bedevere-app bedevere-app bot mentioned this pull request Aug 31, 2024
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@Yhg1s Yhg1s merged commit ed3a49e into python:3.13 Sep 2, 2024
pullenmil
pullenmil reviewed Oct 8, 2024
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it will compress your bulk put it in a hidden lib file and wont have to ask to keep. will keep out syntax error

Lib/tarfile.py
#------------------

# Sentinel for replace() defaults, meaning "don't change the attribute"
_KEEP = object()
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_bulk=object()

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@gpshead gpshead gpshead approved these changes

@ethanfurman ethanfurman Awaiting requested review from ethanfurman ethanfurman is a code owner

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