indirect memory leak with audit hook
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3.14
3.15
interpreter-core
type-bug
- 主要語言
- Python
- 星號
- 77.2k
- 分支
- 35.9k
- PR 合併指標
- PR 指標待擷取
描述
Bug report
Bug description:
import sys
import time
time_tuple = time.localtime()
events = []
def hook(event, *args):
events.append((event, args))
sys.addaudithook(hook)
roundtrip('%x', slice(0, 3), tt2)
NameError: name 'roundtrip' is not defined
=================================================================
==1926743==ERROR: LeakSanitizer: detected memory leaks
Indirect leak of 1432 byte(s) in 1 object(s) allocated from:
#0 0x772dcd8179c7 in malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:69
#1 0x572d4af0c8fe in _PyObject_MallocWithType ../Include/internal/pycore_object_alloc.h:46
#2 0x572d4af0c8fe in _PyType_AllocNoTrack ../Objects/typeobject.c:2505
#3 0x572d4af0cb64 in PyType_GenericAlloc ../Objects/typeobject.c:2536
#4 0x572d4af4245d in PyType_FromMetaclass ../Objects/typeobject.c:5475
#5 0x572d4aeea458 in _PyStructSequence_NewType ../Objects/structseq.c:774
#6 0x572d4b4725b9 in time_exec ../Modules/timemodule.c:2102
#7 0x572d4ae7b4ad in PyModule_ExecDef ../Objects/moduleobject.c:555
#8 0x572d4b1a202a in _imp_exec_builtin (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0x78102a) (BuildId: dac7ae6d6ed5f3a14d0cfdafb4721e2e3be18e94)
#9 0x572d4ad6978e in _PyVectorcall_Call ../Objects/call.c:273
#10 0x572d4ad6978e in _PyObject_Call ../Objects/call.c:348
#11 0x572d4ad6978e in PyObject_Call ../Objects/call.c:373
#12 0x572d4ac08e9c in _PyEval_EvalFrameDefault ../Python/generated_cases.c.h:2616
#13 0x572d4b0e5785 in _PyEval_EvalFrame ../Include/internal/pycore_ceval.h:121
#14 0x572d4b0e5785 in _PyEval_Vector ../Python/ceval.c:2005
#15 0x572d4ad637f2 in _PyObject_VectorcallTstate ../Include/internal/pycore_call.h:169
#16 0x572d4ad637f2 in object_vacall ../Objects/call.c:819
#17 0x572d4ad66e41 in PyObject_CallMethodObjArgs ../Objects/call.c:886
#18 0x572d4b1ad9c3 in import_find_and_load ../Python/import.c:3688
#19 0x572d4b1ad9c3 in PyImport_ImportModuleLevelObject ../Python/import.c:3770
#20 0x572d4b0e05f5 in _PyEval_ImportName ../Python/ceval.c:3021
#21 0x572d4ac1aa3e in _PyEval_EvalFrameDefault ../Python/generated_cases.c.h:6219
#22 0x572d4b0e4fb6 in _PyEval_EvalFrame ../Include/internal/pycore_ceval.h:121
#23 0x572d4b0e4fb6 in _PyEval_Vector ../Python/ceval.c:2005
#24 0x572d4b0e4fb6 in PyEval_EvalCode ../Python/ceval.c:888
#25 0x572d4b0cf628 in builtin_exec_impl ../Python/bltinmodule.c:1180
#26 0x572d4b0cf628 in builtin_exec ../Python/clinic/bltinmodule.c.h:571
#27 0x572d4ac2adf3 in _PyEval_EvalFrameDefault ../Python/generated_cases.c.h:2361
#28 0x572d4b0e5785 in _PyEval_EvalFrame ../Include/internal/pycore_ceval.h:121
#29 0x572d4b0e5785 in _PyEval_Vector ../Python/ceval.c:2005
#30 0x572d4ad637f2 in _PyObject_VectorcallTstate ../Include/internal/pycore_call.h:169
#31 0x572d4ad637f2 in object_vacall ../Objects/call.c:819
#32 0x572d4ad66e41 in PyObject_CallMethodObjArgs ../Objects/call.c:886
#33 0x572d4b1ad9c3 in import_find_and_load ../Python/import.c:3688
#34 0x572d4b1ad9c3 in PyImport_ImportModuleLevelObject ../Python/import.c:3770
#35 0x572d4b0c7a2c in builtin___import___impl ../Python/bltinmodule.c:285
#36 0x572d4b0c7a2c in builtin___import__ ../Python/clinic/bltinmodule.c.h:110
#37 0x572d4ad640b8 in _PyObject_VectorcallTstate ../Include/internal/pycore_call.h:169
#38 0x572d4ad640b8 in _PyObject_CallFunctionVa ../Objects/call.c:552
#39 0x572d4ad65149 in PyObject_CallFunction ../Objects/call.c:574
#40 0x572d4b1aeefb in PyImport_Import ../Python/import.c:3962
#41 0x572d4b1b0d5e in PyImport_ImportModuleAttr ../Python/import.c:4173
#42 0x572d4b1b0d5e in PyImport_ImportModuleAttrString ../Python/import.c:4194
#43 0x572d4b1b0fd3 in init_zipimport ../Python/import.c:4104
#44 0x572d4b1b0fd3 in _PyImport_InitExternal ../Python/import.c:4140
#45 0x572d4b28cf1c in init_interp_main ../Python/pylifecycle.c:1216
Indirect leak of 704 byte(s) in 11 object(s) allocated from:
#0 0x772dcd8179c7 in malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:69
#1 0x572d4af0c8fe in _PyObject_MallocWithType ../Include/internal/pycore_object_alloc.h:46
#2 0x572d4af0c8fe in _PyType_AllocNoTrack ../Objects/typeobject.c:2505
#3 0x572d4af0cb64 in PyType_GenericAlloc ../Objects/typeobject.c:2536
#4 0x572d4ad94a93 in descr_new ../Objects/descrobject.c:911
#5 0x572d4ad94a93 in PyDescr_NewMember ../Objects/descrobject.c:995
#6 0x572d4af303bd in type_add_members ../Objects/typeobject.c:8389
#7 0x572d4af303bd in type_ready_fill_dict ../Objects/typeobject.c:8878
#8 0x572d4af303bd in type_ready ../Objects/typeobject.c:9239
#9 0x572d4af4338c in PyType_FromMetaclass ../Objects/typeobject.c:5591
#10 0x572d4aeea458 in _PyStructSequence_NewType ../Objects/structseq.c:774
#11 0x572d4b4725b9 in time_exec ../Modules/timemodule.c:2102
#12 0x572d4ae7b4ad in PyModule_ExecDef ../Objects/moduleobject.c:555
#13 0x572d4b1a202a in _imp_exec_builtin (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0x78102a) (BuildId: dac7ae6d6ed5f3a14d0cfdafb4721e2e3be18e94)
#14 0x572d4ad6978e in _PyVectorcall_Call ../Objects/call.c:273
#15 0x572d4ad6978e in _PyObject_Call ../Objects/call.c:348
#16 0x572d4ad6978e in PyObject_Call ../Objects/call.c:373
#17 0x572d4ac08e9c in _PyEval_EvalFrameDefault ../Python/generated_cases.c.h:2616
#18 0x572d4b0e5785 in _PyEval_EvalFrame ../Include/internal/pycore_ceval.h:121
#19 0x572d4b0e5785 in _PyEval_Vector ../Python/ceval.c:2005
#20 0x572d4ad637f2 in _PyObject_VectorcallTstate ../Include/internal/pycore_call.h:169
#21 0x572d4ad637f2 in object_vacall ../Objects/call.c:819
#22 0x572d4ad66e41 in PyObject_CallMethodObjArgs ../Objects/call.c:886
#23 0x572d4b1ad9c3 in import_find_and_load ../Python/import.c:3688
#24 0x572d4b1ad9c3 in PyImport_ImportModuleLevelObject ../Python/import.c:3770
#25 0x572d4b0e05f5 in _PyEval_ImportName ../Python/ceval.c:3021
#26 0x572d4ac1aa3e in _PyEval_EvalFrameDefault ../Python/generated_cases.c.h:6219
#27 0x572d4b0e4fb6 in _PyEval_EvalFrame ../Include/internal/pycore_ceval.h:121
#28 0x572d4b0e4fb6 in _PyEval_Vector ../Python/ceval.c:2005
#29 0x572d4b0e4fb6 in PyEval_EvalCode ../Python/ceval.c:888
#30 0x572d4b0cf628 in builtin_exec_impl ../Python/bltinmodule.c:1180
#31 0x572d4b0cf628 in builtin_exec ../Python/clinic/bltinmodule.c.h:571
#32 0x572d4ac2adf3 in _PyEval_EvalFrameDefault ../Python/generated_cases.c.h:2361
#33 0x572d4b0e5785 in _PyEval_EvalFrame ../Include/internal/pycore_ceval.h:121
#34 0x572d4b0e5785 in _PyEval_Vector ../Python/ceval.c:2005
#35 0x572d4ad637f2 in _PyObject_VectorcallTstate ../Include/internal/pycore_call.h:169
#36 0x572d4ad637f2 in object_vacall ../Objects/call.c:819
#37 0x572d4ad66e41 in PyObject_CallMethodObjArgs ../Objects/call.c:886
#38 0x572d4b1ad9c3 in import_find_and_load ../Python/import.c:3688
#39 0x572d4b1ad9c3 in PyImport_ImportModuleLevelObject ../Python/import.c:3770
#40 0x572d4b0c7a2c in builtin___import___impl ../Python/bltinmodule.c:285
#41 0x572d4b0c7a2c in builtin___import__ ../Python/clinic/bltinmodule.c.h:110
#42 0x572d4ad640b8 in _PyObject_VectorcallTstate ../Include/internal/pycore_call.h:169
#43 0x572d4ad640b8 in _PyObject_CallFunctionVa ../Objects/call.c:552
#44 0x572d4ad65149 in PyObject_CallFunction ../Objects/call.c:574
#45 0x572d4b1aeefb in PyImport_Import ../Python/import.c:3962
#46 0x572d4b1b0d5e in PyImport_ImportModuleAttr ../Python/import.c:4173
#47 0x572d4b1b0d5e in PyImport_ImportModuleAttrString ../Python/import.c:4194
CPython versions tested on:
CPython main branch
Operating systems tested on:
Linux
Linked PRs
- gh-140861
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- 在 Issue 下留言說明你要接手 —— 這能避免兩個人做同樣的事。
- Fork 儲存庫，在一個分支上完成修改。
- 送出 Pull Request，並在描述裡引用這個 Issue 編號。
研究方向
從提供的 audit-hook reproducer 和連結的 PR gh-140861 開始，然後透過 Modules/timemodule.c、Objects/structseq.c 和 Objects/typeobject.c 追蹤回報的配置。使用 LeakSanitizer 重新執行 reproducer，並確認回報的間接記憶體洩漏不再出現，以驗證預期的修正。
由索引模型根據 Issue 內容生成。
評估
- 技術堆疊
- c, python
- 領域
- backend, performance
- Issue 類型
- 缺陷
- 難度
- 4/5
- 預估耗時
- 3-5 天
- 活躍度
- 停滯
- 描述清晰度
- 需要釐清
- 新手友好度
- 20/100