Skip to content

[3.11] gh-97616: list_resize() checks for integer overflow (GH-97617) #97625

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 1 commit into from
Sep 28, 2022

Conversation

miss-islington
Copy link
Contributor

@miss-islington miss-islington commented Sep 28, 2022

Fix multiplying a list by an integer (list *= int): detect the
integer overflow when the new allocated length is close to the
maximum size. Issue reported by Jordan Limor.

list_resize() now checks for integer overflow before multiplying the
new allocated length by the list item size (sizeof(PyObject*)).
(cherry picked from commit a5f092f)

Co-authored-by: Victor Stinner vstinner@python.org

…7617)

Fix multiplying a list by an integer (list *= int): detect the
integer overflow when the new allocated length is close to the
maximum size.  Issue reported by Jordan Limor.

list_resize() now checks for integer overflow before multiplying the
new allocated length by the list item size (sizeof(PyObject*)).
(cherry picked from commit a5f092f)

Co-authored-by: Victor Stinner <vstinner@python.org>
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, good bot.

@miss-islington
Copy link
Contributor Author

Status check is done, and it's a success ✅.

@miss-islington miss-islington merged commit 7d60d10 into python:3.11 Sep 28, 2022
@miss-islington miss-islington deleted the backport-a5f092f-3.11 branch September 28, 2022 22:28
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
type-security A security issue
Projects
None yet
Development

Successfully merging this pull request may close these issues.

3 participants