Skip to content

[3.8] bpo-41524: fix pointer bug in PyOS_mystr{n}icmp (GH-21845) #22016

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
Aug 30, 2020

Conversation

miss-islington
Copy link
Contributor

@miss-islington miss-islington commented Aug 30, 2020

  • bpo-41524: fix pointer bug in PyOS_mystr{n}icmp

The existing implementations of PyOS_mystrnicmp and PyOS_mystricmp
can increment pointers beyond the end of a string.

This commit fixes those cases by moving the mutation out of the condition.

  • 📜🤖 Added by blurb_it.

  • Address comments

Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
(cherry picked from commit 97eaf2b)

Co-authored-by: wmeehan wmeehan@users.noreply.github.com

https://bugs.python.org/issue41524

Automerge-Triggered-By: @corona10

* bpo-41524: fix pointer bug in PyOS_mystr{n}icmp

The existing implementations of PyOS_mystrnicmp and PyOS_mystricmp
can increment pointers beyond the end of a string.

This commit fixes those cases by moving the mutation out of the condition.

* 📜🤖 Added by blurb_it.

* Address comments

Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
(cherry picked from commit 97eaf2b)

Co-authored-by: wmeehan <wmeehan@users.noreply.github.com>
@corona10 corona10 merged commit 85ca9c0 into python:3.8 Aug 30, 2020
@miss-islington miss-islington deleted the backport-97eaf2b-3.8 branch August 30, 2020 07:20
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

Successfully merging this pull request may close these issues.

5 participants