Skip to content

gh-111178: fix UBSan failures in Modules/_struct.c #129793

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 10 commits into from
Feb 23, 2025

Conversation

picnixz
Copy link
Member

@picnixz picnixz commented Feb 7, 2025

This PR fixes the UBSan failures and addresses some minor cosmetic changes. PEP-7 changes were not applied since they could scramble the diff but other semantic changes affecting the signature of touched functions may have been done.

@picnixz
Copy link
Member Author

picnixz commented Feb 7, 2025

Ah I'm sorry I put this one as ready for review but I learned that _ + capital letter was also UB (#128248 (comment)) so I'll fix them tomorrow.

@picnixz picnixz marked this pull request as draft February 7, 2025 18:37
@picnixz picnixz marked this pull request as ready for review February 8, 2025 09:28
Copy link
Member

@vstinner vstinner left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

LGTM

@picnixz picnixz enabled auto-merge (squash) February 23, 2025 10:14
@picnixz picnixz merged commit 1e4a434 into python:main Feb 23, 2025
41 checks passed
@picnixz picnixz deleted the fix/ubsan/struct-111178 branch February 23, 2025 11:13
seehwan pushed a commit to seehwan/cpython that referenced this pull request Apr 16, 2025
…9793)

Fix some UBSan failures for `PyStructObject` and `unpackiterobject`.

We also perform some cleanup by suppressing unused return values and renaming the
unused parameter in `METH_NOARGS` and getter methods to `dummy` and `closure`
respectively for semantic purposes.
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Projects
None yet
Development

Successfully merging this pull request may close these issues.

3 participants