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gh-146613: Fix re-entrant use-after-free in itertools._grouper #187583

gh-146613: Fix re-entrant use-after-free in itertools._grouper

gh-146613: Fix re-entrant use-after-free in itertools._grouper #187583

Triggered via pull request April 1, 2026 11:05
Status Failure
Total duration 54m 29s
Artifacts 1

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
Docs  /  Docs
1m 57s
Docs / Docs
Docs  /  Doctest
5m 51s
Docs / Doctest
Docs  /  Check EPUB
2m 1s
Docs / Check EPUB
Check if Autoconf files are up to date
28s
Check if Autoconf files are up to date
Check if generated files are up to date
4m 11s
Check if generated files are up to date
C API Docs  /  Check if all C APIs are documented
9s
C API Docs / Check if all C APIs are documented
iOS
20m 7s
iOS
Emscripten  /  build and test
19m 37s
Emscripten / build and test
WASI  /  build and test
5m 10s
WASI / build and test
Hypothesis tests on Ubuntu
9m 47s
Hypothesis tests on Ubuntu
Cross build Linux
12m 28s
Cross build Linux
Matrix: build-android
All required checks pass
4s
All required checks pass
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4 errors and 13 warnings
Docs / Docs
Process completed with exit code 2.
Docs / Check EPUB
Process completed with exit code 1.
macOS / build and test (macos-26-intel)
The hosted runner lost communication with the server. Anything in your workflow that terminates the runner process, starves it for CPU/Memory, or blocks its network access can cause this error.
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.
macOS / build and test (macos-26)
Already linked: /opt/homebrew/Cellar/tcl-tk/9.0.3
macOS / build and test (macos-26)
openssl@3.5 was installed but not linked because openssl@3 and openssl@3 are already linked. To link this version, run: brew link openssl@3.5
macOS / build and test (macos-26)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
macOS / build and test (macos-26)
gdbm 1.26 is already installed and up-to-date. To reinstall 1.26, run: brew reinstall gdbm
macOS / build and test (macos-26)
xz 5.8.2 is already installed and up-to-date. To reinstall 5.8.2, run: brew reinstall xz
macOS / build and test (macos-26)
pkgconf 2.5.1 is already installed and up-to-date. To reinstall 2.5.1, run: brew reinstall pkgconf
macOS (free-threading) / build and test (macos-26)
Already linked: /opt/homebrew/Cellar/tcl-tk/9.0.3
macOS (free-threading) / build and test (macos-26)
openssl@3.5 was installed but not linked because openssl@3 and openssl@3 are already linked. To link this version, run: brew link openssl@3.5
macOS (free-threading) / build and test (macos-26)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
macOS (free-threading) / build and test (macos-26)
gdbm 1.26 is already installed and up-to-date. To reinstall 1.26, run: brew reinstall gdbm
macOS (free-threading) / build and test (macos-26)
xz 5.8.2 is already installed and up-to-date. To reinstall 5.8.2, run: brew reinstall xz
macOS (free-threading) / build and test (macos-26)
pkgconf 2.5.1 is already installed and up-to-date. To reinstall 2.5.1, run: brew reinstall pkgconf

Artifacts

Produced during runtime
Name Size Digest
UBSan-logs-default
17.7 KB
sha256:453f357af6198a232419dd8f679d54f89057d2f70a0d787e33b98009cdb043c2