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gh-156939: Detect PyBytesWriter buffer overflow earlier #209203

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gh-156939: Detect PyBytesWriter buffer overflow earlier

gh-156939: Detect PyBytesWriter buffer overflow earlier #209203

Triggered via pull request September 13, 2026 02:46
@vstinnervstinner
synchronize #157385
vstinner:check_canary
Status Success
Total duration 32m 18s
Artifacts 1

build.yml

on: pull_request
Change detection  /  Create context from changed files
11s
Change detection / Create context from changed files
Matrix: Address sanitizer
Matrix: build-macos
Matrix: build-san
Matrix: Ubuntu SSL tests
Matrix: build-ubuntu
Matrix: build-windows
Matrix: cifuzz
Check if Autoconf files are up to date
27s
Check if Autoconf files are up to date
Check if generated files are up to date
3m 12s
Check if generated files are up to date
C API Docs  /  Check if all C APIs are documented
10s
C API Docs / Check if all C APIs are documented
Ubuntu (installed)  /  build, install and test
5m 56s
Ubuntu (installed) / build, install and test
iOS
23m 8s
iOS
Emscripten  /  build and test
21m 1s
Emscripten / build and test
WASI  /  build and test
5m 4s
WASI / build and test
Hypothesis tests on Ubuntu
9m 57s
Hypothesis tests on Ubuntu
Cross build Linux
4m 35s
Cross build Linux
Docs  /  Check EPUB
Docs / Check EPUB
Docs  /  Doctest
Docs / Doctest
Docs  /  Docs
Docs / Docs
Matrix: build-android
Docs  /  ...  /  Check for removed HTML IDs
Docs / Check for removed HTML IDs / Check for removed HTML IDs
All required checks pass
3s
All required checks pass
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Annotations

7 warnings and 2 notices
Cross build Linux: Parser/lexer/string.c#L81
variable ‘previous_end’ set but not used [-Wunused-but-set-variable]
Ubuntu (installed) / build, install and test: Parser/lexer/string.c#L81
variable ‘previous_end’ set but not used [-Wunused-but-set-variable]
Hypothesis tests on Ubuntu
No files were found with the provided path: /home/runner/work/cpython/cpython-builddir/.hypothesis/examples/. No artifacts will be uploaded.
macOS / build and test (macos-26)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
Address sanitizer (ubuntu-26.04): Parser/lexer/string.c#L81
variable ‘previous_end’ set but not used [-Wunused-but-set-variable]
macOS (free-threading) / build and test (macos-26)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
macOS / build and test (macos-26-intel)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
Windows / Build and test (arm64, switch-case)
"The windows-11-arm label will migrate to use Visual Studio 2026 by default beginning September 21, 2026. For more information see https://github.com/actions/runner-images/issues/14602"
Windows (free-threading) / Build and test (arm64, switch-case)
"The windows-11-arm label will migrate to use Visual Studio 2026 by default beginning September 21, 2026. For more information see https://github.com/actions/runner-images/issues/14602"

Artifacts

Produced during runtime
Name Size Digest
UBSan-logs-default
1.6 KB
sha256:bb262d8da9086d2aca5d191184fb2cc25eb09bf486ea2d457cc39ae513fe6e12