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gh-149816: Fix UAF on concurrent dict resize in free-threaded builds #201409

gh-149816: Fix UAF on concurrent dict resize in free-threaded builds

gh-149816: Fix UAF on concurrent dict resize in free-threaded builds #201409

Triggered via pull request July 14, 2026 18:37
Status Failure
Total duration 33m 14s
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
Docs  /  Doctest
6m 36s
Docs / Doctest
Docs  /  Check EPUB
2m 18s
Docs / Check EPUB
Check if Autoconf files are up to date
30s
Check if Autoconf files are up to date
Check if generated files are up to date
4m 30s
Check if generated files are up to date
C API Docs  /  Check if all C APIs are documented
7s
C API Docs / Check if all C APIs are documented
iOS
26m 20s
iOS
Emscripten  /  build and test
19m 30s
Emscripten / build and test
WASI  /  build and test
5m 20s
WASI / build and test
Hypothesis tests on Ubuntu
7m 57s
Hypothesis tests on Ubuntu
Cross build Linux
4m 39s
Cross build Linux
Matrix: build-android
Docs  /  ...  /  Check for removed HTML IDs
14s
Docs / Check for removed HTML IDs / Check for removed HTML IDs
All required checks pass
4s
All required checks pass
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Annotations

8 errors and 13 warnings
Ubuntu / build and test (ubuntu-26.04-arm)
Process completed with exit code 1.
Ubuntu / build and test (ubuntu-26.04)
Process completed with exit code 1.
Docs / Check EPUB
Process completed with exit code 1.
Docs / Docs
Process completed with exit code 2.
Docs / Check for removed HTML IDs / Check for removed HTML IDs
Process completed with exit code 128.
macOS / build and test (macos-26-intel)
Process completed with exit code 1.
Ubuntu (bolt) / build and test (ubuntu-26.04)
Process completed with exit code 1.
All required checks pass
Process completed with exit code 1.
Ubuntu / build and test (ubuntu-26.04-arm): Objects/dictobject.c#L507
‘dictkeys_clear_entries’ defined but not used [-Wunused-function]
Ubuntu / build and test (ubuntu-26.04): Objects/dictobject.c#L507
‘dictkeys_clear_entries’ defined but not used [-Wunused-function]
Cross build Linux: Objects/dictobject.c#L507
‘dictkeys_clear_entries’ defined but not used [-Wunused-function]
macOS / build and test (macos-26-intel)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
macOS / build and test (macos-26-intel)
The following taps are not trusted: aws/tap Homebrew is currently ignoring formulae, casks and commands from these taps because tap trust is required. Untap them with: brew untap aws/tap Trust specific formulae, casks and commands with: brew trust --formula <user>/<tap>/<formula> brew trust --cask <user>/<tap>/<cask> brew trust --command <user>/<tap>/<command> Whole-tap trust is broader and includes all current and future formulae, casks and commands from the listed taps. Trust whole taps with: brew trust aws/tap To disable trust checks: export HOMEBREW_NO_REQUIRE_TAP_TRUST=1 This is not recommended and will be removed in a later release. For more information, see: https://docs.brew.sh/Tap-Trust
Hypothesis tests on Ubuntu
No files were found with the provided path: /home/runner/work/cpython/cpython-builddir/.hypothesis/examples/. No artifacts will be uploaded.
Hypothesis tests on Ubuntu: Objects/dictobject.c#L507
‘dictkeys_clear_entries’ defined but not used [-Wunused-function]
Ubuntu (bolt) / build and test (ubuntu-26.04): Objects/dictobject.c#L507
‘dictkeys_clear_entries’ defined but not used [-Wunused-function]
macOS / build and test (macos-26)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
macOS / build and test (macos-26)
The following taps are not trusted: aws/tap Homebrew is currently ignoring formulae, casks and commands from these taps because tap trust is required. Untap them with: brew untap aws/tap Trust specific formulae, casks and commands with: brew trust --formula <user>/<tap>/<formula> brew trust --cask <user>/<tap>/<cask> brew trust --command <user>/<tap>/<command> Whole-tap trust is broader and includes all current and future formulae, casks and commands from the listed taps. Trust whole taps with: brew trust aws/tap To disable trust checks: export HOMEBREW_NO_REQUIRE_TAP_TRUST=1 This is not recommended and will be removed in a later release. For more information, see: https://docs.brew.sh/Tap-Trust
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)
The following taps are not trusted: aws/tap Homebrew is currently ignoring formulae, casks and commands from these taps because tap trust is required. Untap them with: brew untap aws/tap Trust specific formulae, casks and commands with: brew trust --formula <user>/<tap>/<formula> brew trust --cask <user>/<tap>/<cask> brew trust --command <user>/<tap>/<command> Whole-tap trust is broader and includes all current and future formulae, casks and commands from the listed taps. Trust whole taps with: brew trust aws/tap To disable trust checks: export HOMEBREW_NO_REQUIRE_TAP_TRUST=1 This is not recommended and will be removed in a later release. For more information, see: https://docs.brew.sh/Tap-Trust
Address sanitizer (ubuntu-26.04): Objects/dictobject.c#L507
‘dictkeys_clear_entries’ defined but not used [-Wunused-function]

Artifacts

Produced during runtime
Name Size Digest
UBSan-logs-default
1.59 KB
sha256:7b4865aa9232c09f805878316cf73df7280551b74544611b1b01daf4cab591bf
html-ids-head.json.gz
125 KB
sha256:37fa519a3e2cbd39bb1ec78394fd0ade4819e7ba26c922a3d9009f06ad4c9b4d