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[3.14] gh-160781: Fix BytesIO overflow handling for large sizes (GH-160783) #217063

[3.14] gh-160781: Fix BytesIO overflow handling for large sizes (GH-160783)

[3.14] gh-160781: Fix BytesIO overflow handling for large sizes (GH-160783) #217063

Triggered via pull request October 29, 2026 13:55
Status Success
Total duration 28m 35s
Artifacts 2

build.yml

on: pull_request
Change detection  /  Create context from changed files
12s
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  /  Docs
2m 9s
Docs / Docs
Docs  /  Doctest
7m 31s
Docs / Doctest
Docs  /  Check EPUB
2m 3s
Docs / Check EPUB
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
4m 3s
Check if generated files are up to date
C API Docs  /  Check if all C APIs are documented
14s
C API Docs / Check if all C APIs are documented
Ubuntu (installed)  /  build, install and test
6m 1s
Ubuntu (installed) / build, install and test
iOS
22m 59s
iOS
Emscripten  /  build and test
11m 41s
Emscripten / build and test
WASI  /  build and test
4m 47s
WASI / build and test
Hypothesis tests on Ubuntu
7m 42s
Hypothesis tests on Ubuntu
Cross build Linux
3m 36s
Cross build Linux
Check if the ABI has changed
1m 30s
Check if the ABI has changed
Matrix: build-android
All required checks pass
3s
All required checks pass
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Annotations

2 errors, 19 warnings, and 9 notices
Docs / Check EPUB
Process completed with exit code 1.
Docs / Docs
Process completed with exit code 2.
Cross build Linux: Objects/listobject.c#L140
unused variable ‘allocated’ [-Wunused-variable]
Ubuntu (installed) / build, install and test: Objects/listobject.c#L140
unused variable ‘allocated’ [-Wunused-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.
Address sanitizer (ubuntu-26.04): Objects/listobject.c#L140
unused variable ‘allocated’ [-Wunused-variable]
Windows / Build and test (x64): Modules/unicodedata.c#L1568
'function': conversion from 'size_t' to 'int', possible loss of data [D:\a\cpython\cpython\PCbuild\unicodedata.vcxproj]
Windows / Build and test (x64): Python/generated_cases.c.h#L12359
'initializing': conversion from '__int64' to 'int', possible loss of data [D:\a\cpython\cpython\PCbuild\pythoncore.vcxproj]
Windows / Build and test (x64): Python/generated_cases.c.h#L7662
'initializing': conversion from '__int64' to 'int', possible loss of data [D:\a\cpython\cpython\PCbuild\pythoncore.vcxproj]
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!
Windows (free-threading) / Build and test (x64): Modules/unicodedata.c#L1568
'function': conversion from 'size_t' to 'int', possible loss of data [D:\a\cpython\cpython\PCbuild\unicodedata.vcxproj]
Windows (free-threading) / Build and test (x64): Python/generated_cases.c.h#L12359
'initializing': conversion from '__int64' to 'int', possible loss of data [D:\a\cpython\cpython\PCbuild\pythoncore.vcxproj]
Windows (free-threading) / Build and test (x64): Python/generated_cases.c.h#L7662
'initializing': conversion from '__int64' to 'int', possible loss of data [D:\a\cpython\cpython\PCbuild\pythoncore.vcxproj]
Windows / Build and test (arm64): Modules/unicodedata.c#L1568
'function': conversion from 'size_t' to 'int', possible loss of data [C:\a\cpython\cpython\PCbuild\unicodedata.vcxproj]
Windows / Build and test (arm64): Python/generated_cases.c.h#L12359
'initializing': conversion from '__int64' to 'int', possible loss of data [C:\a\cpython\cpython\PCbuild\pythoncore.vcxproj]
Windows / Build and test (arm64): Python/generated_cases.c.h#L7662
'initializing': conversion from '__int64' to 'int', possible loss of data [C:\a\cpython\cpython\PCbuild\pythoncore.vcxproj]
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 (free-threading) / Build and test (arm64): Modules/unicodedata.c#L1568
'function': conversion from 'size_t' to 'int', possible loss of data [C:\a\cpython\cpython\PCbuild\unicodedata.vcxproj]
Windows (free-threading) / Build and test (arm64): Python/generated_cases.c.h#L12359
'initializing': conversion from '__int64' to 'int', possible loss of data [C:\a\cpython\cpython\PCbuild\pythoncore.vcxproj]
Windows (free-threading) / Build and test (arm64): Python/generated_cases.c.h#L7662
'initializing': conversion from '__int64' to 'int', possible loss of data [C:\a\cpython\cpython\PCbuild\pythoncore.vcxproj]
Change detection / Create context from changed files
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"
C API Docs / Check if all C APIs are documented
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"
Docs / Check EPUB
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"
Docs / Docs
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"
Android (aarch64)
Due to capacity constraints, jobs targeting macOS arm64 runners may experience longer queue times.
macOS / build and test (macos-26)
Due to capacity constraints, jobs targeting macOS arm64 runners may experience longer queue times.
macOS (free-threading) / build and test (macos-26)
Due to capacity constraints, jobs targeting macOS arm64 runners may experience longer queue times.
iOS
Due to capacity constraints, jobs targeting macOS arm64 runners may experience longer queue times.
All required checks pass
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"

Artifacts

Produced during runtime
Name Size Digest
MSan-logs-default
207 Bytes
sha256:9269b93705898df474f2eadbc09d750958cb0c6b3a5dc38d3287eb446e80116c
UBSan-logs-default
1.55 KB
sha256:9e42c01ce93d5d4301053c4e19a4388f024378c12c94c8b20d0ec73c19822b0f