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gh-141044: Fix ASan leak with small threading.stack_size() #210429

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

gh-141044: Fix ASan leak with small threading.stack_size() #210429

Triggered via pull request September 21, 2026 19:16
Status Cancelled
Total duration 4m 23s
Artifacts 1

build.yml

on: pull_request
Change detection  /  Create context from changed files
16s
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
1m 32s
Docs / Doctest
Docs  /  Check EPUB
1m 30s
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
1m 31s
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
1m 41s
Ubuntu (installed) / build, install and test
iOS
1m 34s
iOS
Emscripten  /  build and test
1m 31s
Emscripten / build and test
WASI  /  build and test
1m 21s
WASI / build and test
Hypothesis tests on Ubuntu
1m 31s
Hypothesis tests on Ubuntu
Lazy imports enabled  /  Run Tests with lazy_imports=all
1m 24s
Lazy imports enabled / Run Tests with lazy_imports=all
Cross build Linux
1m 31s
Cross build Linux
Matrix: build-android
Docs  /  ...  /  Check for removed HTML IDs
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110 errors, 7 warnings, and 10 notices
CIFuzz / cpython3 (undefined)
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
CIFuzz / cpython3 (undefined)
The operation was canceled.
CIFuzz / cpython3 (memory)
Canceling since a higher priority waiting request for Tests-KingLizard1020-cursor/fix-threading-stack-size-leak-a999 exists
CIFuzz / cpython3 (memory)
The operation was canceled.
WASI / build and test
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WASI / build and test
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CIFuzz / cpython3 (address)
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CIFuzz / cpython3 (address)
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.
Sanitizers / UBSan
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Sanitizers / UBSan
The operation was canceled.
Docs / Docs
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Docs / Docs
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Windows / Build and test (x64, switch-case)
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Windows / Build and test (x64, switch-case)
The operation was canceled.
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.
Cross build Linux
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Cross build Linux
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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 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.
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
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.
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 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.
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.
Docs / Doctest
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Docs / Doctest
The operation was canceled.
Docs / Check EPUB
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Docs / Check EPUB
The operation was canceled.
Address sanitizer (ubuntu-26.04)
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Address sanitizer (ubuntu-26.04)
The operation was canceled.
Android (aarch64)
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Android (aarch64)
The operation was canceled.
Windows (free-threading) / Build and test (x64, switch-case)
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Windows (free-threading) / Build and test (x64, switch-case)
The operation was canceled.
Ubuntu (free-threading) / build and test (ubuntu-26.04-arm)
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Ubuntu (free-threading) / build and test (ubuntu-26.04-arm)
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.
Hypothesis tests on Ubuntu
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Hypothesis tests on Ubuntu
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.
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 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.
Sanitizers / TSan
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Sanitizers / TSan
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.
Sanitizers / TSan (free-threading)
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Sanitizers / TSan (free-threading)
The operation was canceled.
iOS
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iOS
The operation was canceled.
Windows / Build and test (x64, tail-call)
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Windows / Build and test (x64, tail-call)
The operation was canceled.
macOS / 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)
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.
macOS / build and test (macos-26)
The operation was canceled.
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.
Windows / Build and test (Win32, switch-case)
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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.
Windows (free-threading) / 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 (free-threading) / Build and test (x64, tail-call)
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.
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.
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.
Tests
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Tests
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Tests
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All required checks pass
Process completed with exit code 1.
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
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
Cross build Linux: Parser/lexer/string.c#L81
variable ‘previous_end’ set but not used [-Wunused-but-set-variable]
Address sanitizer (ubuntu-26.04): 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-intel)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
macOS / build and test (macos-26)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
macOS (free-threading) / build and test (macos-26)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
Ubuntu (installed) / build, install and test: Parser/lexer/string.c#L81
variable ‘previous_end’ set but not used [-Wunused-but-set-variable]
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"
CIFuzz / cpython3 (undefined)
"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"
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"
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"
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"
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"
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"
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
sha256:7c7c437a758a34656c208d2a25ba7751c0208ce5393cf1fbeab9e45741818c8c