René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Segmentation fault in 3.11.4, 3.12.0b3; _PyInterpreterFrame ownership issue","articleBody":"# Crash report\r\n\r\nThis test case (minimized from a crash in the Zulip test suite) causes a segmentation fault in Python 3.11.4 and 3.12.0b3.\r\n\r\nhttps://github.com/andersk/python-segfault\r\n\r\n```console\r\n$ git clone https://github.com/andersk/python-segfault.git\r\n$ cd python-segfault\r\n$ pip install -r requirements.txt\r\n…\r\nSuccessfully installed Django-4.2.2 asgiref-3.7.2 coverage-7.2.7 sqlparse-0.4.4\r\n$ python -m django migrate --settings=myapp.settings\r\n…\r\n$ python -m coverage run --timid -m django test --settings=myapp.settings\r\nFound 1 test(s).\r\nSystem check identified no issues (0 silenced).\r\n150\r\n151\r\n…\r\n199\r\n200\r\nFatal Python error: Segmentation fault\r\n```\r\n\r\nBased on the tracebacks below, this looks like a `_PyInterpreterFrame` ownership issue similar to #99729 and #100126. The crash is here:\r\n\r\nhttps://github.com/python/cpython/blob/1bbf60dc311443dfc7cd3c587745db0768bfe5dc/Objects/frameobject.c#L854\r\n\r\nwhere the `_PyInterpreterFrame` at `*f-\u003ef_frame` has already been freed.\r\n\r\n# Error messages\r\n\r\n\u003cdetails\u003e\r\n\u003csummary\u003eFull output with Python traceback\u003c/summary\u003e\r\n\r\n```console\r\n$ python -m coverage run --timid -m django test --settings=myapp.settings\r\nFound 1 test(s).\r\nSystem check identified no issues (0 silenced).\r\n150\r\n151\r\n…\r\n199\r\n200\r\nFatal Python error: Segmentation fault\r\n\r\nCurrent thread 0x00007f4abeab1740 (most recent call first):\r\n  Garbage-collecting\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/utils/functional.py\", line 295 in __getattribute__\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/db/models/fields/__init__.py\", line 1587 in get_prep_value\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/db/models/lookups.py\", line 85 in get_prep_lookup\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/db/models/lookups.py\", line 27 in __init__\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/db/models/sql/query.py\", line 1307 in build_lookup\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/db/models/sql/query.py\", line 1480 in build_filter\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/db/models/sql/query.py\", line 1565 in _add_q\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/db/models/sql/query.py\", line 1534 in add_q\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/db/models/query.py\", line 1461 in _filter_or_exclude_inplace\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/db/models/query.py\", line 1454 in _filter_or_exclude\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/db/models/query.py\", line 1436 in filter\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/db/models/query.py\", line 623 in get\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/db/models/manager.py\", line 87 in manager_method\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/contrib/sessions/backends/db.py\", line 32 in _get_session_from_db\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/contrib/sessions/backends/db.py\", line 42 in load\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/contrib/sessions/backends/base.py\", line 192 in _get_session\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/contrib/sessions/backends/base.py\", line 53 in __getitem__\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/contrib/auth/__init__.py\", line 60 in _get_user_session_key\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/contrib/auth/__init__.py\", line 191 in get_user\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/contrib/auth/middleware.py\", line 11 in get_user\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/contrib/auth/middleware.py\", line 25 in \u003clambda\u003e\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/utils/functional.py\", line 419 in _setup\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/utils/functional.py\", line 266 in inner\r\n  File \"/home/anders/zulip/test/python-segfault/myapp/urls.py\", line 21 in foo\r\n  File \"/home/anders/zulip/test/python-segfault/myapp/urls.py\", line 8 in \u003clambda\u003e\r\n  File \"/home/anders/zulip/test/python-segfault/myapp/urls.py\", line 8 in \u003clambda\u003e\r\n  File \"/home/anders/zulip/test/python-segfault/myapp/urls.py\", line 34 in me\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/utils/decorators.py\", line 134 in _wrapper_view\r\n  File \"/home/anders/zulip/test/python-segfault/myapp/urls.py\", line 8 in \u003clambda\u003e\r\n  File \"/home/anders/zulip/test/python-segfault/myapp/urls.py\", line 8 in \u003clambda\u003e\r\n  File \"/home/anders/zulip/test/python-segfault/myapp/urls.py\", line 8 in \u003clambda\u003e\r\n  File \"/home/anders/zulip/test/python-segfault/myapp/urls.py\", line 8 in \u003clambda\u003e\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/core/handlers/base.py\", line 197 in _get_response\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/core/handlers/exception.py\", line 55 in inner\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/utils/deprecation.py\", line 134 in __call__\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/core/handlers/exception.py\", line 55 in inner\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/utils/deprecation.py\", line 134 in __call__\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/core/handlers/exception.py\", line 55 in inner\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/utils/deprecation.py\", line 134 in __call__\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/core/handlers/exception.py\", line 55 in inner\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/utils/deprecation.py\", line 134 in __call__\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/core/handlers/exception.py\", line 55 in inner\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/utils/deprecation.py\", line 134 in __call__\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/core/handlers/exception.py\", line 55 in inner\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/utils/deprecation.py\", line 134 in __call__\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/core/handlers/exception.py\", line 55 in inner\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/utils/deprecation.py\", line 134 in __call__\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/core/handlers/exception.py\", line 55 in inner\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/utils/deprecation.py\", line 134 in __call__\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/core/handlers/exception.py\", line 55 in inner\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/utils/deprecation.py\", line 134 in __call__\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/core/handlers/exception.py\", line 55 in inner\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/utils/deprecation.py\", line 134 in __call__\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/core/handlers/exception.py\", line 55 in inner\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/utils/deprecation.py\", line 134 in __call__\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/core/handlers/exception.py\", line 55 in inner\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/utils/deprecation.py\", line 134 in __call__\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/core/handlers/exception.py\", line 55 in inner\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/utils/deprecation.py\", line 134 in __call__\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/core/handlers/exception.py\", line 55 in inner\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/utils/deprecation.py\", line 134 in __call__\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/core/handlers/exception.py\", line 55 in inner\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/utils/deprecation.py\", line 134 in __call__\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/core/handlers/exception.py\", line 55 in inner\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/utils/deprecation.py\", line 134 in __call__\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/core/handlers/exception.py\", line 55 in inner\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/utils/deprecation.py\", line 134 in __call__\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/core/handlers/exception.py\", line 55 in inner\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/core/handlers/base.py\", line 140 in get_response\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/test/client.py\", line 176 in __call__\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/test/client.py\", line 886 in request\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/test/client.py\", line 609 in generic\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/test/client.py\", line 482 in post\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/test/client.py\", line 948 in post\r\n  File \"/home/anders/zulip/test/python-segfault/myapp/test_me.py\", line 35 in test_me\r\n  File \"/home/anders/zulip/test/python-segfault/myapp/test_me.py\", line 10 in \u003clambda\u003e\r\n  File \"/home/anders/zulip/test/python-segfault/myapp/test_me.py\", line 10 in \u003clambda\u003e\r\n  File \"/home/anders/zulip/test/python-segfault/myapp/test_me.py\", line 10 in \u003clambda\u003e\r\n  File \"/home/anders/zulip/test/python-segfault/myapp/test_me.py\", line 10 in \u003clambda\u003e\r\n  File \"/home/anders/zulip/test/python-segfault/myapp/test_me.py\", line 10 in \u003clambda\u003e\r\n  File \"/home/anders/zulip/test/python-segfault/myapp/test_me.py\", line 10 in \u003clambda\u003e\r\n  File \"/home/anders/zulip/test/python-segfault/myapp/test_me.py\", line 10 in \u003clambda\u003e\r\n  File \"/home/anders/zulip/test/python-segfault/myapp/test_me.py\", line 10 in \u003clambda\u003e\r\n  File \"/home/anders/zulip/test/python-segfault/myapp/test_me.py\", line 10 in \u003clambda\u003e\r\n  File \"/nix/store/cxsw4x1189ppmsydhwsmssr0x65nygj7-python3-3.11.4/lib/python3.11/unittest/case.py\", line 579 in _callTestMethod\r\n  File \"/nix/store/cxsw4x1189ppmsydhwsmssr0x65nygj7-python3-3.11.4/lib/python3.11/unittest/case.py\", line 623 in run\r\n  File \"/nix/store/cxsw4x1189ppmsydhwsmssr0x65nygj7-python3-3.11.4/lib/python3.11/unittest/case.py\", line 678 in __call__\r\n  File \"/nix/store/cxsw4x1189ppmsydhwsmssr0x65nygj7-python3-3.11.4/lib/python3.11/unittest/suite.py\", line 122 in run\r\n  File \"/nix/store/cxsw4x1189ppmsydhwsmssr0x65nygj7-python3-3.11.4/lib/python3.11/unittest/suite.py\", line 84 in __call__\r\n  File \"/nix/store/cxsw4x1189ppmsydhwsmssr0x65nygj7-python3-3.11.4/lib/python3.11/unittest/runner.py\", line 217 in run\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/test/runner.py\", line 983 in run_suite\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/test/runner.py\", line 1061 in run_tests\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/core/management/commands/test.py\", line 68 in handle\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/core/management/base.py\", line 458 in execute\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/core/management/base.py\", line 412 in run_from_argv\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/core/management/commands/test.py\", line 24 in run_from_argv\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/core/management/__init__.py\", line 436 in execute\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/core/management/__init__.py\", line 442 in execute_from_command_line\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/django/__main__.py\", line 9 in \u003cmodule\u003e\r\n  File \"/home/anders/zulip/test/python-segfault/venv/lib/python3.11/site-packages/coverage/execfile.py\", line 211 in run\r\n  ...\r\nSegmentation fault (core dumped)\r\n```\r\n\r\n\u003c/details\u003e\r\n\r\n\u003cdetails\u003e\r\n\u003csummary\u003eAddressSanitizer traceback\u003c/summary\u003e\r\n\r\nThis is from the current `3.11` branch, commit 1bbf60dc311443dfc7cd3c587745db0768bfe5dc.\r\n\r\n```console\r\n$ python -m coverage run --timid -m django test --settings=myapp.settings\r\n/home/vagrant/python-segfault/venv/lib/python3.11/site-packages/django/conf/__init__.py:241: RemovedInDjango50Warning: The default value of USE_TZ will change from False to True in Django 5.0. Set USE_TZ to False in your project settings if you want to keep the current default behavior.\r\n  warnings.warn(\r\nFound 1 test(s).\r\nSystem check identified no issues (0 silenced).\r\n150\r\n151\r\n…\r\n199\r\n200\r\n=================================================================\r\n==4327==ERROR: AddressSanitizer: heap-use-after-free on address 0x62900558c25d at pc 0x55fd433dca1a bp 0x7fff5dc37490 sp 0x7fff5dc37488\r\nREAD of size 1 at 0x62900558c25d thread T0\r\n    #0 0x55fd433dca19 in frame_dealloc /srv/zulip/anders/cpython/Objects/frameobject.c:854:5\r\n    #1 0x55fd434fcfd9 in _PyTrash_thread_destroy_chain /srv/zulip/anders/cpython/Objects/object.c:2276:9\r\n    #2 0x55fd434fcfd9 in _PyTrash_end /srv/zulip/anders/cpython/Objects/object.c:2302:9\r\n    #3 0x55fd43a02ece in tb_dealloc /srv/zulip/anders/cpython/Python/traceback.c:176:5\r\n    #4 0x55fd434fd7de in _Py_Dealloc /srv/zulip/anders/cpython/Objects/object.c:2390:5\r\n    #5 0x55fd43385e52 in Py_DECREF /srv/zulip/anders/cpython/./Include/object.h:527:9\r\n    #6 0x55fd4338f02e in BaseException_clear /srv/zulip/anders/cpython/Objects/exceptions.c:88:5\r\n    #7 0x55fd43582b66 in subtype_clear /srv/zulip/anders/cpython/Objects/typeobject.c:1297:16\r\n    #8 0x55fd43a48c0f in delete_garbage /srv/zulip/anders/cpython/Modules/gcmodule.c:1013:24\r\n    #9 0x55fd43a48c0f in gc_collect_main /srv/zulip/anders/cpython/Modules/gcmodule.c:1287:5\r\n    #10 0x55fd43a45b8f in gc_collect_with_callback /srv/zulip/anders/cpython/Modules/gcmodule.c:1400:14\r\n    #11 0x55fd43a4ce31 in gc_collect_generations /srv/zulip/anders/cpython/Modules/gcmodule.c:1455:17\r\n    #12 0x55fd43a4ce31 in _PyObject_GC_Link /srv/zulip/anders/cpython/Modules/gcmodule.c:2270:9\r\n    #13 0x55fd43a4d79d in gc_alloc /srv/zulip/anders/cpython/Modules/gcmodule.c:2290:5\r\n    #14 0x55fd43a4d615 in _PyObject_GC_New /srv/zulip/anders/cpython/Modules/gcmodule.c:2298:20\r\n    #15 0x55fd433750e3 in PyWrapper_New /srv/zulip/anders/cpython/Objects/descrobject.c:1460:10\r\n    #16 0x55fd43371a6c in wrapperdescr_get /srv/zulip/anders/cpython/Objects/descrobject.c:220:12\r\n    #17 0x55fd43564a44 in super_getattro /srv/zulip/anders/cpython/Objects/typeobject.c:8869:24\r\n    #18 0x55fd434f511c in PyObject_GetAttr /srv/zulip/anders/cpython/Objects/object.c:916:18\r\n    #19 0x55fd434f8901 in _PyObject_GetMethod /srv/zulip/anders/cpython/Objects/object.c:1164:19\r\n    #20 0x55fd437db452 in _PyEval_EvalFrameDefault /srv/zulip/anders/cpython/Python/ceval.c:4492:30\r\n    #21 0x55fd437b8af6 in _PyEval_EvalFrame /srv/zulip/anders/cpython/./Include/internal/pycore_ceval.h:73:16\r\n    #22 0x55fd437b83f1 in _PyEval_Vector /srv/zulip/anders/cpython/Python/ceval.c:6439:24\r\n    #23 0x55fd433379fb in _PyFunction_Vectorcall /srv/zulip/anders/cpython/Objects/call.c\r\n    #24 0x55fd43342c6e in _PyObject_VectorcallTstate /srv/zulip/anders/cpython/./Include/internal/pycore_call.h:92:11\r\n    #25 0x55fd4333f514 in method_vectorcall /srv/zulip/anders/cpython/Objects/classobject.c:59:18\r\n    #26 0x55fd433377d4 in _PyObject_VectorcallTstate /srv/zulip/anders/cpython/./Include/internal/pycore_call.h:92:11\r\n    #27 0x55fd433377d4 in PyObject_CallOneArg /srv/zulip/anders/cpython/Objects/call.c:376:12\r\n    #28 0x55fd435c571a in call_attribute /srv/zulip/anders/cpython/Objects/typeobject.c:7673:11\r\n    #29 0x55fd435ad736 in slot_tp_getattr_hook /srv/zulip/anders/cpython/Objects/typeobject.c:7709:15\r\n    #30 0x55fd434f511c in PyObject_GetAttr /srv/zulip/anders/cpython/Objects/object.c:916:18\r\n    #31 0x55fd437dae27 in _PyEval_EvalFrameDefault /srv/zulip/anders/cpython/Python/ceval.c:3466:29\r\n    #32 0x55fd437b8af6 in _PyEval_EvalFrame /srv/zulip/anders/cpython/./Include/internal/pycore_ceval.h:73:16\r\n    #33 0x55fd437b83f1 in _PyEval_Vector /srv/zulip/anders/cpython/Python/ceval.c:6439:24\r\n    #34 0x55fd433379fb in _PyFunction_Vectorcall /srv/zulip/anders/cpython/Objects/call.c\r\n   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/srv/zulip/anders/cpython/Python/ceval.c:6439:24\r\n    #45 0x55fd433379fb in _PyFunction_Vectorcall /srv/zulip/anders/cpython/Objects/call.c\r\n    #46 0x55fd43342c6e in _PyObject_VectorcallTstate /srv/zulip/anders/cpython/./Include/internal/pycore_call.h:92:11\r\n    #47 0x55fd4333f514 in method_vectorcall /srv/zulip/anders/cpython/Objects/classobject.c:59:18\r\n    #48 0x55fd43336802 in _PyVectorcall_Call /srv/zulip/anders/cpython/Objects/call.c:257:24\r\n    #49 0x55fd433370b5 in _PyObject_Call /srv/zulip/anders/cpython/Objects/call.c:328:16\r\n    #50 0x55fd4333765b in PyObject_Call /srv/zulip/anders/cpython/Objects/call.c:355:12\r\n    #51 0x55fd437e68c3 in do_call_core /srv/zulip/anders/cpython/Python/ceval.c\r\n    #52 0x55fd437e68c3 in _PyEval_EvalFrameDefault /srv/zulip/anders/cpython/Python/ceval.c:5381:22\r\n    #53 0x55fd437b8af6 in _PyEval_EvalFrame /srv/zulip/anders/cpython/./Include/internal/pycore_ceval.h:73:16\r\n    #54 0x55fd437b83f1 in _PyEval_Vector /srv/zulip/anders/cpython/Python/ceval.c:6439:24\r\n    #55 0x55fd433379fb in _PyFunction_Vectorcall /srv/zulip/anders/cpython/Objects/call.c\r\n    #56 0x55fd43342c6e in _PyObject_VectorcallTstate /srv/zulip/anders/cpython/./Include/internal/pycore_call.h:92:11\r\n    #57 0x55fd4333f514 in method_vectorcall /srv/zulip/anders/cpython/Objects/classobject.c:59:18\r\n    #58 0x55fd43336802 in _PyVectorcall_Call /srv/zulip/anders/cpython/Objects/call.c:257:24\r\n    #59 0x55fd433370b5 in _PyObject_Call /srv/zulip/anders/cpython/Objects/call.c:328:16\r\n    #60 0x55fd4333765b in PyObject_Call /srv/zulip/anders/cpython/Objects/call.c:355:12\r\n    #61 0x55fd437e68c3 in do_call_core /srv/zulip/anders/cpython/Python/ceval.c\r\n    #62 0x55fd437e68c3 in _PyEval_EvalFrameDefault /srv/zulip/anders/cpython/Python/ceval.c:5381:22\r\n    #63 0x55fd437b8af6 in _PyEval_EvalFrame /srv/zulip/anders/cpython/./Include/internal/pycore_ceval.h:73:16\r\n    #64 0x55fd437b83f1 in _PyEval_Vector /srv/zulip/anders/cpython/Python/ceval.c:6439:24\r\n    #65 0x55fd433379fb in _PyFunction_Vectorcall /srv/zulip/anders/cpython/Objects/call.c\r\n    #66 0x55fd433377d4 in _PyObject_VectorcallTstate /srv/zulip/anders/cpython/./Include/internal/pycore_call.h:92:11\r\n    #67 0x55fd433377d4 in PyObject_CallOneArg /srv/zulip/anders/cpython/Objects/call.c:376:12\r\n    #68 0x55fd433768f5 in property_descr_get /srv/zulip/anders/cpython/Objects/descrobject.c:1630:12\r\n    #69 0x55fd434f6db1 in _PyObject_GenericGetAttrWithDict /srv/zulip/anders/cpython/Objects/object.c:1278:19\r\n    #70 0x55fd434f6a3c in PyObject_GenericGetAttr /srv/zulip/anders/cpython/Objects/object.c:1368:12\r\n    #71 0x55fd434f511c in PyObject_GetAttr /srv/zulip/anders/cpython/Objects/object.c:916:18\r\n    #72 0x55fd437dae27 in _PyEval_EvalFrameDefault /srv/zulip/anders/cpython/Python/ceval.c:3466:29\r\n    #73 0x55fd437b8af6 in _PyEval_EvalFrame /srv/zulip/anders/cpython/./Include/internal/pycore_ceval.h:73:16\r\n    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/srv/zulip/anders/cpython/Python/ceval.c:6439:24\r\n    #84 0x55fd433379fb in _PyFunction_Vectorcall /srv/zulip/anders/cpython/Objects/call.c\r\n    #85 0x55fd43342c6e in _PyObject_VectorcallTstate /srv/zulip/anders/cpython/./Include/internal/pycore_call.h:92:11\r\n    #86 0x55fd4333f514 in method_vectorcall /srv/zulip/anders/cpython/Objects/classobject.c:59:18\r\n    #87 0x55fd433377d4 in _PyObject_VectorcallTstate /srv/zulip/anders/cpython/./Include/internal/pycore_call.h:92:11\r\n    #88 0x55fd433377d4 in PyObject_CallOneArg /srv/zulip/anders/cpython/Objects/call.c:376:12\r\n    #89 0x55fd435c571a in call_attribute /srv/zulip/anders/cpython/Objects/typeobject.c:7673:11\r\n    #90 0x55fd435ad7fc in slot_tp_getattr_hook /srv/zulip/anders/cpython/Objects/typeobject.c:7714:15\r\n    #91 0x55fd434f511c in PyObject_GetAttr /srv/zulip/anders/cpython/Objects/object.c:916:18\r\n    #92 0x55fd437dae27 in _PyEval_EvalFrameDefault /srv/zulip/anders/cpython/Python/ceval.c:3466:29\r\n    #93 0x55fd437b8af6 in _PyEval_EvalFrame /srv/zulip/anders/cpython/./Include/internal/pycore_ceval.h:73:16\r\n    #94 0x55fd437b83f1 in _PyEval_Vector /srv/zulip/anders/cpython/Python/ceval.c:6439:24\r\n    #95 0x55fd433379fb in _PyFunction_Vectorcall /srv/zulip/anders/cpython/Objects/call.c\r\n    #96 0x55fd433368db in _PyVectorcall_Call /srv/zulip/anders/cpython/Objects/call.c:245:16\r\n    #97 0x55fd433370b5 in _PyObject_Call /srv/zulip/anders/cpython/Objects/call.c:328:16\r\n    #98 0x55fd4333765b in PyObject_Call /srv/zulip/anders/cpython/Objects/call.c:355:12\r\n    #99 0x55fd437e68c3 in do_call_core /srv/zulip/anders/cpython/Python/ceval.c\r\n    #100 0x55fd437e68c3 in _PyEval_EvalFrameDefault /srv/zulip/anders/cpython/Python/ceval.c:5381:22\r\n    #101 0x55fd437b8af6 in _PyEval_EvalFrame /srv/zulip/anders/cpython/./Include/internal/pycore_ceval.h:73:16\r\n    #102 0x55fd437b83f1 in _PyEval_Vector /srv/zulip/anders/cpython/Python/ceval.c:6439:24\r\n    #103 0x55fd433379fb in _PyFunction_Vectorcall /srv/zulip/anders/cpython/Objects/call.c\r\n    #104 0x55fd433368db in _PyVectorcall_Call /srv/zulip/anders/cpython/Objects/call.c:245:16\r\n    #105 0x55fd433370b5 in _PyObject_Call /srv/zulip/anders/cpython/Objects/call.c:328:16\r\n    #106 0x55fd4333765b in PyObject_Call /srv/zulip/anders/cpython/Objects/call.c:355:12\r\n    #107 0x55fd437e68c3 in do_call_core /srv/zulip/anders/cpython/Python/ceval.c\r\n    #108 0x55fd437e68c3 in _PyEval_EvalFrameDefault /srv/zulip/anders/cpython/Python/ceval.c:5381:22\r\n    #109 0x55fd437b8af6 in _PyEval_EvalFrame /srv/zulip/anders/cpython/./Include/internal/pycore_ceval.h:73:16\r\n    #110 0x55fd437b83f1 in _PyEval_Vector /srv/zulip/anders/cpython/Python/ceval.c:6439:24\r\n    #111 0x55fd433379fb in _PyFunction_Vectorcall /srv/zulip/anders/cpython/Objects/call.c\r\n    #112 0x55fd433368db in _PyVectorcall_Call /srv/zulip/anders/cpython/Objects/call.c:245:16\r\n    #113 0x55fd433370b5 in _PyObject_Call /srv/zulip/anders/cpython/Objects/call.c:328:16\r\n    #114 0x55fd4333765b in PyObject_Call /srv/zulip/anders/cpython/Objects/call.c:355:12\r\n    #115 0x55fd437e68c3 in do_call_core /srv/zulip/anders/cpython/Python/ceval.c\r\n    #116 0x55fd437e68c3 in _PyEval_EvalFrameDefault /srv/zulip/anders/cpython/Python/ceval.c:5381:22\r\n    #117 0x55fd437b8af6 in _PyEval_EvalFrame /srv/zulip/anders/cpython/./Include/internal/pycore_ceval.h:73:16\r\n    #118 0x55fd437b83f1 in _PyEval_Vector /srv/zulip/anders/cpython/Python/ceval.c:6439:24\r\n    #119 0x55fd433379fb in _PyFunction_Vectorcall /srv/zulip/anders/cpython/Objects/call.c\r\n    #120 0x55fd433368db in _PyVectorcall_Call /srv/zulip/anders/cpython/Objects/call.c:245:16\r\n    #121 0x55fd433370b5 in _PyObject_Call /srv/zulip/anders/cpython/Objects/call.c:328:16\r\n    #122 0x55fd4333765b in PyObject_Call /srv/zulip/anders/cpython/Objects/call.c:355:12\r\n    #123 0x55fd437e68c3 in do_call_core /srv/zulip/anders/cpython/Python/ceval.c\r\n    #124 0x55fd437e68c3 in _PyEval_EvalFrameDefault /srv/zulip/anders/cpython/Python/ceval.c:5381:22\r\n    #125 0x55fd437b8af6 in _PyEval_EvalFrame /srv/zulip/anders/cpython/./Include/internal/pycore_ceval.h:73:16\r\n    #126 0x55fd437b83f1 in _PyEval_Vector /srv/zulip/anders/cpython/Python/ceval.c:6439:24\r\n    #127 0x55fd433379fb in _PyFunction_Vectorcall /srv/zulip/anders/cpython/Objects/call.c\r\n    #128 0x55fd433368db in _PyVectorcall_Call /srv/zulip/anders/cpython/Objects/call.c:245:16\r\n    #129 0x55fd433370b5 in _PyObject_Call /srv/zulip/anders/cpython/Objects/call.c:328:16\r\n    #130 0x55fd4333765b in PyObject_Call /srv/zulip/anders/cpython/Objects/call.c:355:12\r\n    #131 0x55fd437e68c3 in do_call_core /srv/zulip/anders/cpython/Python/ceval.c\r\n    #132 0x55fd437e68c3 in _PyEval_EvalFrameDefault /srv/zulip/anders/cpython/Python/ceval.c:5381:22\r\n    #133 0x55fd437b8af6 in _PyEval_EvalFrame /srv/zulip/anders/cpython/./Include/internal/pycore_ceval.h:73:16\r\n    #134 0x55fd437b83f1 in _PyEval_Vector /srv/zulip/anders/cpython/Python/ceval.c:6439:24\r\n    #135 0x55fd433379fb in _PyFunction_Vectorcall /srv/zulip/anders/cpython/Objects/call.c\r\n    #136 0x55fd433368db in _PyVectorcall_Call /srv/zulip/anders/cpython/Objects/call.c:245:16\r\n    #137 0x55fd433370b5 in _PyObject_Call /srv/zulip/anders/cpython/Objects/call.c:328:16\r\n    #138 0x55fd4333765b in PyObject_Call /srv/zulip/anders/cpython/Objects/call.c:355:12\r\n    #139 0x55fd437e68c3 in do_call_core /srv/zulip/anders/cpython/Python/ceval.c\r\n    #140 0x55fd437e68c3 in _PyEval_EvalFrameDefault /srv/zulip/anders/cpython/Python/ceval.c:5381:22\r\n    #141 0x55fd437b8af6 in _PyEval_EvalFrame /srv/zulip/anders/cpython/./Include/internal/pycore_ceval.h:73:16\r\n    #142 0x55fd437b83f1 in _PyEval_Vector /srv/zulip/anders/cpython/Python/ceval.c:6439:24\r\n    #143 0x55fd433379fb in _PyFunction_Vectorcall /srv/zulip/anders/cpython/Objects/call.c\r\n    #144 0x55fd433368db in _PyVectorcall_Call /srv/zulip/anders/cpython/Objects/call.c:245:16\r\n    #145 0x55fd433370b5 in _PyObject_Call /srv/zulip/anders/cpython/Objects/call.c:328:16\r\n    #146 0x55fd4333765b in PyObject_Call /srv/zulip/anders/cpython/Objects/call.c:355:12\r\n    #147 0x55fd437e68c3 in do_call_core /srv/zulip/anders/cpython/Python/ceval.c\r\n    #148 0x55fd437e68c3 in _PyEval_EvalFrameDefault /srv/zulip/anders/cpython/Python/ceval.c:5381:22\r\n    #149 0x55fd437b8af6 in _PyEval_EvalFrame /srv/zulip/anders/cpython/./Include/internal/pycore_ceval.h:73:16\r\n    #150 0x55fd437b83f1 in _PyEval_Vector /srv/zulip/anders/cpython/Python/ceval.c:6439:24\r\n    #151 0x55fd433379fb in _PyFunction_Vectorcall /srv/zulip/anders/cpython/Objects/call.c\r\n    #152 0x55fd433368db in _PyVectorcall_Call /srv/zulip/anders/cpython/Objects/call.c:245:16\r\n    #153 0x55fd433370b5 in _PyObject_Call /srv/zulip/anders/cpython/Objects/call.c:328:16\r\n    #154 0x55fd4333765b in PyObject_Call /srv/zulip/anders/cpython/Objects/call.c:355:12\r\n    #155 0x55fd437e68c3 in do_call_core /srv/zulip/anders/cpython/Python/ceval.c\r\n    #156 0x55fd437e68c3 in _PyEval_EvalFrameDefault /srv/zulip/anders/cpython/Python/ceval.c:5381:22\r\n    #157 0x55fd437b8af6 in _PyEval_EvalFrame /srv/zulip/anders/cpython/./Include/internal/pycore_ceval.h:73:16\r\n    #158 0x55fd437b83f1 in _PyEval_Vector /srv/zulip/anders/cpython/Python/ceval.c:6439:24\r\n    #159 0x55fd433379fb in _PyFunction_Vectorcall /srv/zulip/anders/cpython/Objects/call.c\r\n    #160 0x55fd43333966 in _PyObject_FastCallDictTstate /srv/zulip/anders/cpython/Objects/call.c:141:15\r\n    #161 0x55fd43338483 in _PyObject_Call_Prepend /srv/zulip/anders/cpython/Objects/call.c:482:24\r\n    #162 0x55fd435ad2f1 in slot_tp_call /srv/zulip/anders/cpython/Objects/typeobject.c:7632:15\r\n    #163 0x55fd43334063 in _PyObject_MakeTpCall /srv/zulip/anders/cpython/Objects/call.c:214:18\r\n    #164 0x55fd43336d3a in _PyObject_VectorcallTstate 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0x55fd4333f839 in method_vectorcall /srv/zulip/anders/cpython/Objects/classobject.c:67:20\r\n    #12 0x55fd433368db in _PyVectorcall_Call /srv/zulip/anders/cpython/Objects/call.c:245:16\r\n    #13 0x55fd433370b5 in _PyObject_Call /srv/zulip/anders/cpython/Objects/call.c:328:16\r\n    #14 0x55fd4333765b in PyObject_Call /srv/zulip/anders/cpython/Objects/call.c:355:12\r\n    #15 0x55fd437e68c3 in do_call_core /srv/zulip/anders/cpython/Python/ceval.c\r\n    #16 0x55fd437e68c3 in _PyEval_EvalFrameDefault /srv/zulip/anders/cpython/Python/ceval.c:5381:22\r\n    #17 0x55fd437b8af6 in _PyEval_EvalFrame /srv/zulip/anders/cpython/./Include/internal/pycore_ceval.h:73:16\r\n    #18 0x55fd437b83f1 in _PyEval_Vector /srv/zulip/anders/cpython/Python/ceval.c:6439:24\r\n    #19 0x55fd433379fb in _PyFunction_Vectorcall /srv/zulip/anders/cpython/Objects/call.c\r\n    #20 0x55fd43333966 in _PyObject_FastCallDictTstate /srv/zulip/anders/cpython/Objects/call.c:141:15\r\n    #21 0x55fd43338483 in _PyObject_Call_Prepend /srv/zulip/anders/cpython/Objects/call.c:482:24\r\n    #22 0x55fd435ad2f1 in slot_tp_call /srv/zulip/anders/cpython/Objects/typeobject.c:7632:15\r\n    #23 0x55fd43334063 in _PyObject_MakeTpCall /srv/zulip/anders/cpython/Objects/call.c:214:18\r\n    #24 0x55fd433377ff in _PyObject_VectorcallTstate /srv/zulip/anders/cpython/./Include/internal/pycore_call.h:90:16\r\n    #25 0x55fd433377ff in PyObject_CallOneArg /srv/zulip/anders/cpython/Objects/call.c:376:12\r\n    #26 0x55fd436bf2b3 in handle_callback /srv/zulip/anders/cpython/Objects/weakrefobject.c:928:26\r\n    #27 0x55fd436be4cc in PyObject_ClearWeakRefs /srv/zulip/anders/cpython/Objects/weakrefobject.c:974:21\r\n    #28 0x55fd43c380ee in partial_dealloc /srv/zulip/anders/cpython/./Modules/_functoolsmodule.c:179:9\r\n    #29 0x55fd434fd7de in _Py_Dealloc /srv/zulip/anders/cpython/Objects/object.c:2390:5\r\n    #30 0x55fd433e0972 in Py_DECREF /srv/zulip/anders/cpython/./Include/object.h:527:9\r\n    #31 0x55fd433dc796 in frame_dealloc /srv/zulip/anders/cpython/Objects/frameobject.c:875:13\r\n    #32 0x55fd434fd7de in _Py_Dealloc /srv/zulip/anders/cpython/Objects/object.c:2390:5\r\n    #33 0x55fd433e0972 in Py_DECREF /srv/zulip/anders/cpython/./Include/object.h:527:9\r\n\r\nSUMMARY: AddressSanitizer: heap-use-after-free /srv/zulip/anders/cpython/Objects/frameobject.c:854:5 in frame_dealloc\r\nShadow bytes around the buggy address:\r\n  0x0c5280aa97f0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa\r\n  0x0c5280aa9800: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa\r\n  0x0c5280aa9810: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa\r\n  0x0c5280aa9820: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa\r\n  0x0c5280aa9830: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa\r\n=\u003e0x0c5280aa9840: fd fd fd fd fd fd fd fd fd fd fd[fd]fd fd fd fd\r\n  0x0c5280aa9850: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd\r\n  0x0c5280aa9860: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd\r\n  0x0c5280aa9870: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd\r\n  0x0c5280aa9880: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd\r\n  0x0c5280aa9890: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd\r\nShadow byte legend (one shadow byte represents 8 application bytes):\r\n  Addressable:           00\r\n  Partially addressable: 01 02 03 04 05 06 07 \r\n  Heap left redzone:       fa\r\n  Freed heap region:       fd\r\n  Stack left redzone:      f1\r\n  Stack mid redzone:       f2\r\n  Stack right redzone:     f3\r\n  Stack after return:      f5\r\n  Stack use after scope:   f8\r\n  Global redzone:          f9\r\n  Global init order:       f6\r\n  Poisoned by user:        f7\r\n  Container overflow:      fc\r\n  Array cookie:            ac\r\n  Intra object redzone:    bb\r\n  ASan internal:           fe\r\n  Left alloca redzone:     ca\r\n  Right alloca redzone:    cb\r\n==4327==ABORTING\r\n```\r\n\r\n\u003c/details\u003e\r\n\r\n# Your environment\r\n\r\n- CPython versions tested on: 3.11.4, 3.12.0b3\r\n- Operating system and architecture: NixOS 23.11 x86_64, Debian 12 x86_64\r\n\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-106875\n* gh-107532\n* gh-107533\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/andersk","@type":"Person","name":"andersk"},"datePublished":"2023-06-25T19:51:19.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/106092/cpython/issues/106092"}