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[3.13] gh-153603: Fix out-of-bounds read in the ISO-2022 decoder for an unknown charset (GH-153604) #206212

[3.13] gh-153603: Fix out-of-bounds read in the ISO-2022 decoder for an unknown charset (GH-153604)

[3.13] gh-153603: Fix out-of-bounds read in the ISO-2022 decoder for an unknown charset (GH-153604) #206212

Triggered via pull request August 17, 2026 13:03
Status Failure
Total duration 24m 4s
Artifacts 4

build.yml

on: pull_request
Change detection  /  Create context from changed files
29s
Change detection / Create context from changed files
Matrix: Address sanitizer
Matrix: build-macos
Matrix: build-san
Matrix: Ubuntu SSL tests with OpenSSL
Matrix: build-ubuntu
Matrix: build-windows-msi
Waiting for pending jobs
Matrix: build-windows
Matrix: cifuzz
Docs  /  Docs
1m 46s
Docs / Docs
Docs  /  Doctest
6m 30s
Docs / Doctest
Docs  /  Check EPUB
2m 6s
Docs / Check EPUB
Check if Autoconf files are up to date
35s
Check if Autoconf files are up to date
Check if generated files are up to date
4m 51s
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
4m 58s
Ubuntu (installed) / build, install and test
WASI  /  build and test
7m 20s
WASI / build and test
Hypothesis tests on Ubuntu
6m 40s
Hypothesis tests on Ubuntu
Check if the ABI has changed
1m 46s
Check if the ABI has changed
Matrix: build-android
All required checks pass
4s
All required checks pass
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2 errors and 26 warnings
Docs / Docs
Process completed with exit code 2.
Docs / Check EPUB
Process completed with exit code 1.
Check if the ABI has changed
The `python-version` input is not set. The version of Python currently in `PATH` will be used.
Windows / build (arm64): 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 (arm64): Modules/unicodedata.c#L1568
'function': conversion from 'size_t' to 'int', possible loss of data [D:\a\cpython\cpython\PCbuild\unicodedata.vcxproj]
Ubuntu (installed) / build, install and test: Modules/_decimal/libmpdec/io.c#L349
writing 1 byte into a region of size 0 [-Wstringop-overflow=]
Ubuntu (installed) / build, install and test: Modules/_decimal/libmpdec/io.c#L349
writing 1 byte into a region of size 0 [-Wstringop-overflow=]
Ubuntu (installed) / build, install and test: Modules/_decimal/libmpdec/io.c#L349
writing 1 byte into a region of size 0 [-Wstringop-overflow=]
Ubuntu (installed) / build, install and test: Modules/_decimal/libmpdec/io.c#L349
writing 1 byte into a region of size 0 [-Wstringop-overflow=]
Ubuntu (installed) / build, install and test: Modules/_decimal/libmpdec/io.c#L349
writing 1 byte into a region of size 0 [-Wstringop-overflow=]
Ubuntu (installed) / build, install and test: Modules/_decimal/libmpdec/io.c#L349
writing 1 byte into a region of size 0 [-Wstringop-overflow=]
Ubuntu (installed) / build, install and test: Modules/_decimal/libmpdec/io.c#L349
writing 1 byte into a region of size 0 [-Wstringop-overflow=]
Ubuntu (installed) / build, install and test: Modules/_decimal/libmpdec/io.c#L349
writing 1 byte into a region of size 0 [-Wstringop-overflow=]
Ubuntu (installed) / build, install and test: Modules/_decimal/libmpdec/io.c#L349
writing 1 byte into a region of size 0 [-Wstringop-overflow=]
Ubuntu (installed) / build, install and test: Modules/_decimal/libmpdec/io.c#L349
writing 1 byte into a region of size 0 [-Wstringop-overflow=]
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-24.04): Modules/_decimal/libmpdec/io.c#L349
writing 1 byte into a region of size 0 [-Wstringop-overflow=]
Address sanitizer (ubuntu-24.04): Modules/_decimal/libmpdec/io.c#L349
writing 1 byte into a region of size 0 [-Wstringop-overflow=]
Address sanitizer (ubuntu-24.04): Modules/_decimal/libmpdec/io.c#L349
writing 1 byte into a region of size 0 [-Wstringop-overflow=]
Address sanitizer (ubuntu-24.04): Modules/_decimal/libmpdec/io.c#L349
writing 1 byte into a region of size 0 [-Wstringop-overflow=]
Address sanitizer (ubuntu-24.04): Modules/_decimal/libmpdec/io.c#L349
writing 1 byte into a region of size 0 [-Wstringop-overflow=]
Address sanitizer (ubuntu-24.04): Modules/_decimal/libmpdec/io.c#L349
writing 1 byte into a region of size 0 [-Wstringop-overflow=]
Address sanitizer (ubuntu-24.04): Modules/_decimal/libmpdec/io.c#L349
writing 1 byte into a region of size 0 [-Wstringop-overflow=]
Address sanitizer (ubuntu-24.04): Modules/_decimal/libmpdec/io.c#L349
writing 1 byte into a region of size 0 [-Wstringop-overflow=]
Address sanitizer (ubuntu-24.04): Python/import.c#L1197
‘__builtin_strncpy’ output truncated before terminating nul copying as many bytes from a string as its length [-Wstringop-truncation]
Address sanitizer (ubuntu-24.04): Include/internal/pycore_dict.h#L302
writing 1 byte into a region of size 0 [-Wstringop-overflow=]
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 (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]

Artifacts

Produced during runtime
Name Size Digest
TSan-logs-free-threading
1.61 KB
sha256:ba64953ce22448425f69e133a567103a0324dcde9d98f13d4409644e36d9e330
address-artifacts
2.7 KB
sha256:fd3312a2fac6cdf60a7073acd6852a2ae0795e1f993f4d6e8062cf2732b24e71
memory-artifacts
1.91 KB
sha256:10f7bd84426ae30754575815eb517c5d7b877cfbbc3ad617683791298842d2d9
undefined-artifacts
1.88 KB
sha256:abd8f395a22254b132acaae85ca2de65f62d4da2726a08fd26cb1bc5a7612cb5