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gh-141044: Fix ASan leak with small threading.stack_size() #210446

gh-141044: Fix ASan leak with small threading.stack_size()

gh-141044: Fix ASan leak with small threading.stack_size() #210446

Triggered via pull request September 21, 2026 21:09
Status Cancelled
Total duration 3m 37s
Artifacts 1

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
2m 47s
Docs / Doctest
Docs  /  Check EPUB
2m 37s
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
2m 45s
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
2m 45s
Ubuntu (installed) / build, install and test
iOS
2m 46s
iOS
Emscripten  /  build and test
2m 45s
Emscripten / build and test
WASI  /  build and test
2m 46s
WASI / build and test
Hypothesis tests on Ubuntu
2m 35s
Hypothesis tests on Ubuntu
Lazy imports enabled  /  Run Tests with lazy_imports=all
2m 45s
Lazy imports enabled / Run Tests with lazy_imports=all
Cross build Linux
2m 46s
Cross build Linux
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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111 errors, 7 warnings, and 10 notices
Docs / Docs
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Docs / Docs
Process completed with exit code 2.
Docs / Docs
Process completed with exit code 2.
Ubuntu SSL tests (ubuntu-26.04, openssl, 1.1.1w)
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Ubuntu SSL tests (ubuntu-26.04, openssl, 1.1.1w)
The operation was canceled.
Windows (free-threading) / Build and test (x64, switch-case)
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Windows (free-threading) / Build and test (x64, switch-case)
The operation was canceled.
CIFuzz / cpython3 (undefined)
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
CIFuzz / cpython3 (undefined)
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Docs / Check EPUB
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Docs / Check EPUB
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CIFuzz / cpython3 (address)
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CIFuzz / cpython3 (address)
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CIFuzz / cpython3 (memory)
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CIFuzz / cpython3 (memory)
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Hypothesis tests on Ubuntu
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Hypothesis tests on Ubuntu
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Windows (free-threading) / Build and test (arm64, switch-case)
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Windows (free-threading) / Build and test (arm64, switch-case)
The operation was canceled.
Emscripten / build and test
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Emscripten / build and test
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Windows / Build and test (Win32, switch-case)
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Windows / Build and test (Win32, switch-case)
The operation was canceled.
Ubuntu (installed) / build, install and test
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Ubuntu (installed) / build, install and test
The operation was canceled.
Ubuntu (bolt) / build and test (ubuntu-26.04)
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Ubuntu (bolt) / build and test (ubuntu-26.04)
The operation was canceled.
Windows / Build and test (arm64, switch-case)
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Windows / Build and test (arm64, switch-case)
The operation was canceled.
Ubuntu (free-threading) / build and test (ubuntu-26.04)
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Ubuntu (free-threading) / build and test (ubuntu-26.04)
The operation was canceled.
WASI / build and test
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
WASI / build and test
The operation was canceled.
Windows / Build and test (x64, switch-case)
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Windows / Build and test (x64, switch-case)
The operation was canceled.
Ubuntu SSL tests (ubuntu-26.04, aws-lc, 5.5.0)
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Ubuntu SSL tests (ubuntu-26.04, aws-lc, 5.5.0)
The operation was canceled.
macOS (free-threading) / build and test (macos-26)
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
macOS (free-threading) / build and test (macos-26)
The operation was canceled.
Docs / Doctest
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Docs / Doctest
The operation was canceled.
Windows / Build and test (x64, tail-call)
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Windows / Build and test (x64, tail-call)
The operation was canceled.
Lazy imports enabled / Run Tests with lazy_imports=all
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Lazy imports enabled / Run Tests with lazy_imports=all
The operation was canceled.
Ubuntu SSL tests (ubuntu-26.04, openssl, 3.4.7)
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Ubuntu SSL tests (ubuntu-26.04, openssl, 3.4.7)
The operation was canceled.
Sanitizers / TSan
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Sanitizers / TSan
The operation was canceled.
Ubuntu SSL tests (ubuntu-26.04, openssl, 3.0.22)
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Ubuntu SSL tests (ubuntu-26.04, openssl, 3.0.22)
The operation was canceled.
Android (x86_64)
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Android (x86_64)
The operation was canceled.
Ubuntu / build and test (ubuntu-26.04)
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Ubuntu / build and test (ubuntu-26.04)
The operation was canceled.
Address sanitizer (ubuntu-26.04)
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Address sanitizer (ubuntu-26.04)
The operation was canceled.
Ubuntu SSL tests (ubuntu-26.04, openssl, 3.5.8)
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Ubuntu SSL tests (ubuntu-26.04, openssl, 3.5.8)
The operation was canceled.
Cross build Linux
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Cross build Linux
The operation was canceled.
Ubuntu / build and test (ubuntu-26.04-arm)
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Ubuntu / build and test (ubuntu-26.04-arm)
The operation was canceled.
Check if generated files are up to date
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Check if generated files are up to date
The operation was canceled.
Ubuntu (free-threading) / build and test (ubuntu-26.04-arm)
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Ubuntu (free-threading) / build and test (ubuntu-26.04-arm)
The operation was canceled.
Ubuntu SSL tests (ubuntu-26.04, openssl, 3.6.4)
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Ubuntu SSL tests (ubuntu-26.04, openssl, 3.6.4)
The operation was canceled.
Sanitizers / UBSan
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Sanitizers / UBSan
The operation was canceled.
macOS / build and test (macos-26)
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macOS / build and test (macos-26)
The operation was canceled.
iOS
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
iOS
The operation was canceled.
Sanitizers / TSan (free-threading)
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Sanitizers / TSan (free-threading)
The operation was canceled.
macOS / build and test (macos-26-intel)
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
macOS / build and test (macos-26-intel)
The operation was canceled.
Ubuntu SSL tests (ubuntu-26.04, openssl, 4.0.2)
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Ubuntu SSL tests (ubuntu-26.04, openssl, 4.0.2)
The operation was canceled.
Android (aarch64)
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Android (aarch64)
The operation was canceled.
Tests
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Tests
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Tests
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Tests
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Tests
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Tests
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Tests
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Tests
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Tests
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Tests
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Tests
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Tests
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Tests
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Tests
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Tests
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Tests
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Tests
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Tests
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Tests
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Windows (free-threading) / Build and test (x64, tail-call)
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Tests
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Windows (free-threading) / Build and test (x64, tail-call)
The operation was canceled.
Tests
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Tests
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Tests
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Tests
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
Tests
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
All required checks pass
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.
Ubuntu (installed) / build, install and test: Parser/lexer/string.c#L81
variable ‘previous_end’ set but not used [-Wunused-but-set-variable]
macOS (free-threading) / build and test (macos-26)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
Address sanitizer (ubuntu-26.04): Parser/lexer/string.c#L81
variable ‘previous_end’ set but not used [-Wunused-but-set-variable]
Cross build Linux: Parser/lexer/string.c#L81
variable ‘previous_end’ set but not used [-Wunused-but-set-variable]
macOS / build and test (macos-26)
`$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!
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
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Docs / Docs
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CIFuzz / cpython3 (undefined)
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Docs / Check EPUB
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CIFuzz / cpython3 (address)
"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"
CIFuzz / cpython3 (memory)
"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"
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"
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"
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
UBSan-logs-default
364 Bytes
sha256:afe4fbf41930ad931fa4f99575abcb8bc41ecdab9e38265c78bef17e2038390a