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gh-156939: Detect buffer overflow in bytes and bytearray #209592

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gh-156939: Detect buffer overflow in bytes and bytearray

gh-156939: Detect buffer overflow in bytes and bytearray #209592

Triggered via pull request September 15, 2026 13:32
@vstinnervstinner
synchronize #157529
vstinner:bytearray_overflow
Status Failure
Total duration 38m 32s
Artifacts 2

build.yml

on: pull_request
Change detection  /  Create context from changed files
14s
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
Docs  /  Doctest
7m 58s
Docs / Doctest
Docs  /  Check EPUB
2m 18s
Docs / Check EPUB
Check if Autoconf files are up to date
26s
Check if Autoconf files are up to date
Check if generated files are up to date
4m 51s
Check if generated files are up to date
C API Docs  /  Check if all C APIs are documented
11s
C API Docs / Check if all C APIs are documented
Ubuntu (installed)  /  build, install and test
6m 5s
Ubuntu (installed) / build, install and test
iOS
23m 5s
iOS
Emscripten  /  build and test
19m 36s
Emscripten / build and test
WASI  /  build and test
4m 59s
WASI / build and test
Hypothesis tests on Ubuntu
10m 30s
Hypothesis tests on Ubuntu
Cross build Linux
4m 3s
Cross build Linux
Docs  /  Docs
2m 9s
Docs / Docs
Matrix: build-android
Docs  /  ...  /  Check for removed HTML IDs
2m 6s
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

2 errors, 7 warnings, and 2 notices
Docs / Docs
Process completed with exit code 2.
Docs / Check EPUB
Process completed with exit code 1.
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)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
macOS (free-threading) / build and test (macos-26)
`$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!
Address sanitizer (ubuntu-26.04): Parser/lexer/string.c#L81
variable ‘previous_end’ set but not used [-Wunused-but-set-variable]
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
1.59 KB
sha256:a49d6d0d62856953b6a5a55be2cbf26132fb653aa467499dcc7013500df6603b
html-ids-head.json.gz
129 KB
sha256:4381b917b8ceb8fdd84a6013a84318d05e3dcef0cd4efc5db2c973e76106bbab