René's URL Explorer Experiment


Title: [3.14] gh-146196: Fix Undefined Behavior in _PyUnicodeWriter_WriteASCIIString() (#146201) by vstinner · Pull Request #146220 · python/cpython · GitHub

Open Graph Title: [3.14] gh-146196: Fix Undefined Behavior in _PyUnicodeWriter_WriteASCIIString() (#146201) by vstinner · Pull Request #146220 · python/cpython

X Title: [3.14] gh-146196: Fix Undefined Behavior in _PyUnicodeWriter_WriteASCIIString() (#146201) by vstinner · Pull Request #146220 · python/cpython

Description: Avoid calling memcpy(data + writer->pos, NULL, 0) which has an undefined behavior. (cherry picked from commit cd10a2e) Issue: gh-146196

Open Graph Description: Avoid calling memcpy(data + writer->pos, NULL, 0) which has an undefined behavior. (cherry picked from commit cd10a2e) Issue: gh-146196

X Description: Avoid calling memcpy(data + writer->pos, NULL, 0) which has an undefined behavior. (cherry picked from commit cd10a2e) Issue: gh-146196

Opengraph URL: https://github.com/python/cpython/pull/146220

X: @github

direct link

Domain: github.com

route-pattern/:user_id/:repository/pull/:id/files(.:format)
route-controllerpull_requests
route-actionfiles
fetch-noncev2:b559efd5-b8cf-b49d-3be8-16d77b667984
current-catalog-service-hashae870bc5e265a340912cde392f23dad3671a0a881730ffdadd82f2f57d81641b
request-idB5A0:52C9:A2253:13516A:6A50BBF7
html-safe-nonce52fed3971fab14c71f4f0377f5a6d59ac54e0d011d5883e1d17b719e86e08961
visitor-payloadeyJyZWZlcnJlciI6IiIsInJlcXVlc3RfaWQiOiJCNUEwOjUyQzk6QTIyNTM6MTM1MTZBOjZBNTBCQkY3IiwidmlzaXRvcl9pZCI6IjMzMDI4ODAzMzk3NDgyNDAzNzUiLCJyZWdpb25fZWRnZSI6Indlc3R1czIiLCJyZWdpb25fcmVuZGVyIjoid2VzdHVzMiJ9
visitor-hmacfe500aa9e9fba3e30013d9bcc2a905e6a544ab086560f33e808de4e905d7943d
hovercard-subject-tagpull_request:3425683117
github-keyboard-shortcutsrepository,pull-request-list,pull-request-conversation,pull-request-files-changed,copilot
google-site-verificationApib7-x98H0j5cPqHWwSMm6dNU4GmODRoqxLiDzdx9I
octolytics-urlhttps://collector.github.com/github/collect
analytics-location///pull_requests/show/files
fb:app_id1401488693436528
apple-itunes-appapp-id=1477376905, app-argument=https://github.com/python/cpython/pull/146220/files
twitter:imagehttps://avatars.githubusercontent.com/u/194129?s=400&v=4
twitter:cardsummary_large_image
og:imagehttps://avatars.githubusercontent.com/u/194129?s=400&v=4
og:image:altAvoid calling memcpy(data + writer->pos, NULL, 0) which has an undefined behavior. (cherry picked from commit cd10a2e) Issue: gh-146196
og:site_nameGitHub
og:typeobject
hostnamegithub.com
expected-hostnamegithub.com
None72b13e0e8d0319acdd27a145cfe73f4f06c791713d0ac4690e41fb68ad28cac0
turbo-cache-controlno-preview
diff-viewunified
go-importgithub.com/python/cpython git https://github.com/python/cpython.git
octolytics-dimension-user_id1525981
octolytics-dimension-user_loginpython
octolytics-dimension-repository_id81598961
octolytics-dimension-repository_nwopython/cpython
octolytics-dimension-repository_publictrue
octolytics-dimension-repository_is_forkfalse
octolytics-dimension-repository_network_root_id81598961
octolytics-dimension-repository_network_root_nwopython/cpython
turbo-body-classeslogged-out env-production page-responsive full-width
disable-turbotrue
browser-stats-urlhttps://api.github.com/_private/browser/stats
browser-errors-urlhttps://api.github.com/_private/browser/errors
release08e79d53fc070870d5b168356afebb1e286a2ffe
ui-targetfull
theme-color#1e2327
color-schemelight dark

Links:

Skip to contenthttps://github.com/python/cpython/pull/146220/files#start-of-content
https://github.com/
Sign in https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fpython%2Fcpython%2Fpull%2F146220%2Ffiles
GitHub CopilotWrite better code with AIhttps://github.com/features/copilot
GitHub Copilot appDirect agents from issue to mergehttps://github.com/features/ai/github-app
MCP RegistryNewIntegrate external toolshttps://github.com/mcp
ActionsAutomate any workflowhttps://github.com/features/actions
CodespacesInstant dev environmentshttps://github.com/features/codespaces
IssuesPlan and track workhttps://github.com/features/issues
Code ReviewManage code changeshttps://github.com/features/code-review
GitHub Advanced SecurityFind and fix vulnerabilitieshttps://github.com/security/advanced-security
Code securitySecure your code as you buildhttps://github.com/security/advanced-security/code-security
Secret protectionStop leaks before they starthttps://github.com/security/advanced-security/secret-protection
Why GitHubhttps://github.com/why-github
Documentationhttps://docs.github.com
Bloghttps://github.blog
Changeloghttps://github.blog/changelog
Marketplacehttps://github.com/marketplace
View all featureshttps://github.com/features
Enterpriseshttps://github.com/enterprise
Small and medium teamshttps://github.com/team
Startupshttps://github.com/enterprise/startups
Nonprofitshttps://github.com/solutions/industry/nonprofits
App Modernizationhttps://github.com/solutions/use-case/app-modernization
DevSecOpshttps://github.com/solutions/use-case/devsecops
DevOpshttps://github.com/solutions/use-case/devops
CI/CDhttps://github.com/solutions/use-case/ci-cd
View all use caseshttps://github.com/solutions/use-case
Healthcarehttps://github.com/solutions/industry/healthcare
Financial serviceshttps://github.com/solutions/industry/financial-services
Manufacturinghttps://github.com/solutions/industry/manufacturing
Governmenthttps://github.com/solutions/industry/government
View all industrieshttps://github.com/solutions/industry
View all solutionshttps://github.com/solutions
AIhttps://github.com/resources/articles?topic=ai
Software Developmenthttps://github.com/resources/articles?topic=software-development
DevOpshttps://github.com/resources/articles?topic=devops
Securityhttps://github.com/resources/articles?topic=security
View all topicshttps://github.com/resources/articles
Customer storieshttps://github.com/customer-stories
Events & webinarshttps://github.com/resources/events
Ebooks & reportshttps://github.com/resources/whitepapers
Business insightshttps://github.com/solutions/executive-insights
GitHub Skillshttps://skills.github.com
Documentationhttps://docs.github.com
Customer supporthttps://support.github.com
Community forumhttps://github.com/orgs/community/discussions
Trust centerhttps://github.com/trust-center
Partnershttps://github.com/partners
View all resourceshttps://github.com/resources
GitHub SponsorsFund open source developershttps://github.com/open-source/sponsors
Security Labhttps://securitylab.github.com
Maintainer Communityhttps://maintainers.github.com
Acceleratorhttps://github.com/open-source/accelerator
GitHub Starshttps://stars.github.com
Archive Programhttps://archiveprogram.github.com
Topicshttps://github.com/topics
Trendinghttps://github.com/trending
Collectionshttps://github.com/collections
Enterprise platformAI-powered developer platformhttps://github.com/enterprise
GitHub Advanced SecurityEnterprise-grade security featureshttps://github.com/security/advanced-security
Copilot for BusinessEnterprise-grade AI featureshttps://github.com/features/copilot/copilot-business
Premium SupportEnterprise-grade 24/7 supporthttps://github.com/enterprise/premium-support
Pricinghttps://github.com/pricing
Search syntax tipshttps://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax
documentationhttps://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax
Sign in https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fpython%2Fcpython%2Fpull%2F146220%2Ffiles
Sign up https://github.com/signup?ref_cta=Sign+up&ref_loc=header+logged+out&ref_page=%2F%3Cuser-name%3E%2F%3Crepo-name%3E%2Fpull_requests%2Fshow%2Ffiles&source=header-repo&source_repo=python%2Fcpython
Reloadhttps://github.com/python/cpython/pull/146220/files
Reloadhttps://github.com/python/cpython/pull/146220/files
Reloadhttps://github.com/python/cpython/pull/146220/files
Please reload this pagehttps://github.com/python/cpython/pull/146220/files
python https://github.com/python
cpythonhttps://github.com/python/cpython
Please reload this pagehttps://github.com/python/cpython/pull/146220/files
Notifications https://github.com/login?return_to=%2Fpython%2Fcpython
Fork 35k https://github.com/login?return_to=%2Fpython%2Fcpython
Star 73.7k https://github.com/login?return_to=%2Fpython%2Fcpython
Code https://github.com/python/cpython
Issues 5k+ https://github.com/python/cpython/issues
Pull requests 2.3k https://github.com/python/cpython/pulls
Actions https://github.com/python/cpython/actions
Projects https://github.com/python/cpython/projects
Security and quality 0 https://github.com/python/cpython/security
Insights https://github.com/python/cpython/pulse
Code https://github.com/python/cpython
Issues https://github.com/python/cpython/issues
Pull requests https://github.com/python/cpython/pulls
Actions https://github.com/python/cpython/actions
Projects https://github.com/python/cpython/projects
Security and quality https://github.com/python/cpython/security
Insights https://github.com/python/cpython/pulse
Sign up for GitHub https://github.com/signup?return_to=%2Fpython%2Fcpython%2Fissues%2Fnew%2Fchoose
terms of servicehttps://docs.github.com/terms
privacy statementhttps://docs.github.com/privacy
Sign inhttps://github.com/login?return_to=%2Fpython%2Fcpython%2Fissues%2Fnew%2Fchoose
vstinnerhttps://github.com/vstinner
python:3.14https://github.com/python/cpython/tree/3.14
vstinner:ascii14https://github.com/vstinner/cpython/tree/ascii14
Conversation 0 https://github.com/python/cpython/pull/146220
Commits 1 https://github.com/python/cpython/pull/146220/commits
Checks 46 https://github.com/python/cpython/pull/146220/checks
Files changed https://github.com/python/cpython/pull/146220/files
Please reload this pagehttps://github.com/python/cpython/pull/146220/files
[3.14] gh-146196: Fix Undefined Behavior in _PyUnicodeWriter_WriteASCIIString() (#146201) https://github.com/python/cpython/pull/146220/files#top
Show all changes 1 commit https://github.com/python/cpython/pull/146220/files
ca11535 gh-146196: Fix Undefined Behavior in _PyUnicodeWriter_WriteASCIIStrin… ashm-dev Mar 20, 2026 https://github.com/python/cpython/pull/146220/commits/ca11535917f0b3c9cfd4a28d2ccff924724caf3f
Clear filters https://github.com/python/cpython/pull/146220/files
Please reload this pagehttps://github.com/python/cpython/pull/146220/files
Please reload this pagehttps://github.com/python/cpython/pull/146220/files
2026-03-20-13-55-14.gh-issue-146196.Zg70Kb.rst https://github.com/python/cpython/pull/146220/files#diff-b868282f6b5e76e0bacf223bd01d67c631bf8c58533f27cf552115b893f75782
unicodeobject.c https://github.com/python/cpython/pull/146220/files#diff-34c966e7876d6f8bf801dd51896327e4f68bba02cddb95fbf3963f0b2e39c38a
Misc/NEWS.d/next/Core_and_Builtins/2026-03-20-13-55-14.gh-issue-146196.Zg70Kb.rsthttps://github.com/python/cpython/pull/146220/files#diff-b868282f6b5e76e0bacf223bd01d67c631bf8c58533f27cf552115b893f75782
View file https://github.com/vstinner/cpython/blob/ca11535917f0b3c9cfd4a28d2ccff924724caf3f/Misc/NEWS.d/next/Core_and_Builtins/2026-03-20-13-55-14.gh-issue-146196.Zg70Kb.rst
Open in desktop https://desktop.github.com
https://github.co/hiddenchars
https://github.com/python/cpython/pull/146220/{{ revealButtonHref }}
Objects/unicodeobject.chttps://github.com/python/cpython/pull/146220/files#diff-34c966e7876d6f8bf801dd51896327e4f68bba02cddb95fbf3963f0b2e39c38a
View file https://github.com/vstinner/cpython/blob/ca11535917f0b3c9cfd4a28d2ccff924724caf3f/Objects/unicodeobject.c
Open in desktop https://desktop.github.com
https://github.co/hiddenchars
https://github.com/python/cpython/pull/146220/{{ revealButtonHref }}
https://github.com/python/cpython/pull/146220/files#diff-34c966e7876d6f8bf801dd51896327e4f68bba02cddb95fbf3963f0b2e39c38a
https://github.com/python/cpython/pull/146220/files#diff-34c966e7876d6f8bf801dd51896327e4f68bba02cddb95fbf3963f0b2e39c38a
Please reload this pagehttps://github.com/python/cpython/pull/146220/files
https://github.com
Termshttps://docs.github.com/site-policy/github-terms/github-terms-of-service
Privacyhttps://docs.github.com/site-policy/privacy-policies/github-privacy-statement
Securityhttps://github.com/security
Statushttps://www.githubstatus.com/
Communityhttps://github.community/
Docshttps://docs.github.com/
Contacthttps://support.github.com?tags=dotcom-footer

Viewport: width=device-width

URLs of crawlers that visited me.