8000 gh-121285: Remove backtracking when parsing tarfile headers by sethmlarson · Pull Request #121286 · python/cpython · GitHub
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Merged
merged 11 commits into from
Aug 31, 2024

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sethmlarson
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@sethmlarson sethmlarson commented Jul 2, 2024

This removes all instances of backtracking from parsing tarfile headers, specifically hdrcharset, PAX, and GNU sparse headers.

…hrl-yI.rst

Co-authored-by: Kirill Podoprigora <kirill.bast9@mail.ru>
@sethmlarson sethmlarson requested a review from gpshead July 2, 2024 18:45
@sethmlarson sethmlarson added type-security A security issue 3.11 only security fixes 3.10 only security fixes 3.9 only security fixes 3.8 (EOL) end of life 3.12 only security fixes labels Jul 2, 2024
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hugovk commented Jul 2, 2024

@sethmlarson Did you mean to add the "Needs backport to 3.x" labels rather than the "3.x" ones?

@sethmlarson sethmlarson added needs backport to 3.8 needs backport to 3.9 only security fixes needs backport to 3.10 only security fixes needs backport to 3.11 only security fixes needs backport to 3.12 only security fixes needs backport to 3.13 bugs and security fixes and removed 3.11 only security fixes 3.10 only security fixes 3.9 only security fixes 3.8 (EOL) end of life 3.12 only security fixes labels Jul 2, 2024
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@hugovk Yes! Selected the wrong range of tags, my bad.

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Please remove the type hints.

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bedevere-app bot commented Jul 2, 2024

A Python core developer has requested some changes be made to your pull request before we can consider merging it. If you could please address their requests along with any other requests in other reviews from core developers that would be appreciated.

Once you have made the requested changes, please leave a comment on this pull request containing the phrase I have made the requested changes; please review again. I will then notify any core developers who have left a review that you're ready for them to take another look at this pull request.

sethmlarson added a commit to sethmlarson/cpython that referenced this pull request Sep 3, 2024
…ers (pythonGH-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>
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bedevere-app bot commented Sep 3, 2024

GH-123639 is a backport of this pull request to the 3.11 branch.

@bedevere-app bedevere-app bot removed the needs backport to 3.11 only security fixes label Sep 3, 2024
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bedevere-app bot commented Sep 3, 2024

GH-123639 is a backport of this pull request to the 3.11 branch.

sethmlarson added a commit to sethmlarson/cpython that referenced this pull request Sep 3, 2024
…ers (pythonGH-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>
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bedevere-app bot commented Sep 3, 2024

GH-123640 is a backport of this pull request to the 3.10 branch.

@bedevere-app bedevere-app bot removed the needs backport to 3.10 only security fixes label Sep 3, 2024
sethmlarson added a commit to sethmlarson/cpython that referenced this pull request Sep 3, 2024
…rs (pythonGH-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>
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bedevere-app bot commented Sep 3, 2024

GH-123641 is a backport of this pull request to the 3.9 branch.

@bedevere-app bedevere-app bot removed the needs backport to 3.9 only security fixes label Sep 3, 2024
sethmlarson added a commit to sethmlarson/cpython that referenced this pull request Sep 3, 2024
…rs (pythonGH-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>
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bedevere-app bot commented Sep 3, 2024

GH-123642 is a backport of this pull request to the 3.8 branch.

@sethmlarson
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Backports have been created.

pablogsal pushed a commit that referenced this pull request Sep 3, 2024
…H-121286) (#123639)

* 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: Kirill Podoprigora <kirill.bast9@mail.ru>
Co-authored-by: Gregory P. Smith <greg@krypto.org>
pablogsal pushed a commit that referenced this pull request Sep 3, 2024
…H-121286) (#123640)

* 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: Kirill Podoprigora <kirill.bast9@mail.ru>
Co-authored-by: Gregory P. Smith <greg@krypto.org>
ambv pushed a commit that referenced this pull request Sep 4, 2024
…-121286) (#123642)

* 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>
ambv pushed a commit that referenced this pull request Sep 4, 2024
…-121286) (#123641)

* 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>
frenzymadness pushed a commit to frenzymadness/cpython that referenced this pull request Sep 5, 2024
…e headers (pythonGH-121286) (python#123642)

* 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>
frenzymadness added a commit to frenzymadness/cpython that referenced this pull request Sep 5, 2024
…e headers (pythonGH-121286) (python#123642)

* 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>
Co-authored-by: Lumír Balhar <lbalhar@redhat.com>
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