os.stat() and os.DirEntry.stat() don't check for fill_time() exception: _Py_CheckSlotResult: Slot * of type int succeeded with an exception set #109613
Description
Bug report
$ ./python -m test -v test_tools.test_freeze -u all == CPython 3.12.0rc3+ (heads/3.12-dirty:4a0c118d6a, Sep 20 2023, 16:55:13) [GCC 13.2.1 20230728 (Red Hat 13.2.1-1)] == Linux-6.4.14-200.fc38.x86_64-x86_64-with-glibc2.37 little-endian == Python build: debug == cwd: /home/vstinner/python/3.12/build/test_python_768929æ == CPU count: 12 == encodings: locale=UTF-8, FS=utf-8 0:00:00 load avg: 1.16 Run tests sequentially 0:00:00 load avg: 1.16 [1/1] test_tools.test_freeze test_freeze_simple_script (test.test_tools.test_freeze.TestFreeze.test_freeze_simple_script) ... creating the script to be frozen at /tmp/tmp_as044dn/app.py copying the source tree into /tmp/tmp_as044dn/cpython... ^C Fatal Python error: _Py_CheckSlotResult: Slot * of type int succeeded with an exception set Python runtime state: initialized KeyboardInterrupt Current thread 0x00007fd397f9e740 (most recent call first): File "/home/vstinner/python/3.12/Lib/shutil.py", line 376 in copystat File "/home/vstinner/python/3.12/Lib/shutil.py", line 536 in _copytree File "/home/vstinner/python/3.12/Lib/shutil.py", line 588 in copytree File "/home/vstinner/python/3.12/Lib/shutil.py", line 524 in _copytree File "/home/vstinner/python/3.12/Lib/shutil.py", line 588 in copytree ... I suppose that long_mul() was called indirectly by os_DirEntry_stat_impl(). Traceback when I put a breakpoint in gdb:
(gdb) where #0 long_mul (a=0x7fffe97e8ac0, b=0x7fffea5d23c0) at Objects/longobject.c:3956 #1 0x00000000004ca219 in binary_op1 (v=1695221791, w=1000000000, op_slot=16, op_name=0x7adfe4 "*") at Objects/abstract.c:882 #2 0x00000000004cab6b in PyNumber_Multiply (v=1695221791, w=1000000000) at Objects/abstract.c:1100 #3 0x000000000070a0ac in fill_time (module=<module at remote 0x7fffea5ce570>, v=<os.stat_result at remote 0x7fffe97fb150>, s_index=7, f_index=10, ns_index=13, sec=1695221791, nsec=606287902) at ./Modules/posixmodule.c:2400 #4 0x000000000070a398 in _pystat_fromstructstat (module=<module at remote 0x7fffea5ce570>, st=0x7ffffffe8730) at ./Modules/posixmodule.c:2508 #5 0x0000000000713e1d in DirEntry_fetch_stat (module=<module at remote 0x7fffea5ce570>, self=0x7fffe97d5ae0, follow_symlinks=0) at ./Modules/posixmodule.c:14639 #6 0x0000000000713e64 in DirEntry_get_lstat (defining_class=0xb6dd60, self=0x7fffe97d5ae0) at ./Modules/posixmodule.c:14650 #7 0x0000000000713f2a in os_DirEntry_stat_impl (self=0x7fffe97d5ae0, defining_class=0xb6dd60, follow_symlinks=1) at ./Modules/posixmodule.c:14685 #8 0x000000000071dadc in os_DirEntry_stat (self=0x7fffe97d5ae0, defining_class=0xb6dd60, args=0x7ffff7fbafb0, nargs=0, kwnames=0x0) at ./Modules/clinic/posixmodule.c.h:10788 #9 0x00000000004feba4 in method_vectorcall_FASTCALL_KEYWORDS_METHOD (func=<method_descriptor at remote 0x7fffea5fc6b0>, args=0x7ffff7fbafa8, nargsf=9223372036854775809, kwnames=0x0) at Objects/descrobject.c:387 #10 0x00000000004ed499 in _PyObject_VectorcallTstate (tstate=0xb5a8e0 <_PyRuntime+475616>, callable=<method_descriptor at remote 0x7fffea5fc6b0>, args=0x7ffff7fbafa8, nargsf=9223372036854775809, kwnames=0x0) at ./Include/internal/pycore_call.h:92 #11 0x00000000004ee17d in PyObject_Vectorcall (callable=<method_descriptor at remote 0x7fffea5fc6b0>, args=0x7ffff7fbafa8, nargsf=9223372036854775809, kwnames=0x0) at Objects/call.c:325 #12 0x0000000000644123 in _PyEval_EvalFrameDefault (tstate=0xb5a8e0 <_PyRuntime+475616>, frame=0x7ffff7fbaf38, throwflag=0) at Python/bytecodes.c:2711 #13 0x000000000062f7a0 in _PyEval_EvalFrame (tstate=0xb5a8e0 <_PyRuntime+475616>, frame=0x7ffff7fba1c0, throwflag=0) at ./Include/internal/pycore_ceval.h:88