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[3.15] gh-157048: check for buffer errors before mutating in BytesIO.__init__ (GH-157049) #208569

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[3.15] gh-157048: check for buffer errors before mutating in BytesIO.__init__ (GH-157049)

[3.15] gh-157048: check for buffer errors before mutating in BytesIO.__init__ (GH-157049) #208569

Triggered via pull request September 7, 2026 15:29
@miss-islingtonmiss-islington
opened #157069
miss-islington:backport-d125f00-3.15
Status Success
Total duration 31m 24s
Artifacts 2

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-msi
Waiting for pending jobs
Matrix: build-windows
Matrix: cifuzz
Waiting for pending jobs
Docs  /  Doctest
7m 16s
Docs / Doctest
Docs  /  Check EPUB
2m 31s
Docs / Check EPUB
Check if Autoconf files are up to date
32s
Check if Autoconf files are up to date
Check if generated files are up to date
4m 25s
Check if generated files are up to date
C API Docs  /  Check if all C APIs are documented
12s
C API Docs / Check if all C APIs are documented
Ubuntu (installed)  /  build, install and test
6m 10s
Ubuntu (installed) / build, install and test
iOS
18m 24s
iOS
Emscripten  /  build and test
19m 51s
Emscripten / build and test
WASI  /  build and test
5m 14s
WASI / build and test
Hypothesis tests on Ubuntu
7m 26s
Hypothesis tests on Ubuntu
Cross build Linux
4m 5s
Cross build Linux
Docs  /  Docs
2m 9s
Docs / Docs
Check if the ABI has changed
1m 36s
Check if the ABI has changed
Matrix: build-android
Docs  /  ...  /  Check for removed HTML IDs
2m 28s
Docs / Check for removed HTML IDs / Check for removed HTML IDs
All required checks pass
5s
All required checks pass
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Annotations

2 errors, 4 warnings, and 2 notices
Docs / Docs
Process completed with exit code 2.
Docs / Check EPUB
Process completed with exit code 1.
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 (free-threading) / build and test (macos-26)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
macOS / build and test (macos-26)
`$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
1.61 KB
sha256:d684f08eba1aa7f8986481317ce5d40f153cc5e05fc0171504ff079bf3466ea0
html-ids-head.json.gz
125 KB
sha256:4a9ecad451e35ab98bea831b1c7332b5df1f5cc1f1ce5074355ee44674efe292