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Memory error in operator.mul #103692

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Closed as not planned
@baltsers

Description

@baltsers

Bug report

We did a fuzzing test on Python3.9.15, a memory error happened.

from operator import *
import operator


def demoFunc(arg1,arg2):
    try:
        ret = operator.mul(arg1, arg2)
    except (AssertionError, AttributeError, ImportError, LookupError, OSError, TypeError, ValueError) as e:
        pass

a= 30439031216
b= "!@#$%^&*9523"
demoFunc(a, b)

details

Bug info

    #1 0x499621 in PyMem_RawMalloc /root/CpyFuzz/experiments/Python-3.9.15/Objects/obmalloc.c:572:12
    #2 0x499621 in _PyObject_Malloc /root/CpyFuzz/experiments/Python-3.9.15/Objects/obmalloc.c:1645:11
    #3 0x4da16f in PyUnicode_New /root/CpyFuzz/experiments/Python-3.9.15/Objects/unicodeobject.c:1451:24
    #4 0x52acd7 in unicode_repeat /root/CpyFuzz/experiments/Python-3.9.15/Objects/unicodeobject.c:12917:9
    #5 0x6fabbe in cfunction_vectorcall_FASTCALL /root/CpyFuzz/experiments/Python-3.9.15/Objects/methodobject.c:430:24
    #6 0x5635fd in _PyObject_VectorcallTstate /root/CpyFuzz/experiments/Python-3.9.15/./Include/cpython/abstract.h:118:11
    #7 0x5635fd in PyObject_Vectorcall /root/CpyFuzz/experiments/Python-3.9.15/./Include/cpython/abstract.h:127:12
    #8 0x5635fd in call_function /root/CpyFuzz/experiments/Python-3.9.15/Python/ceval.c:5077:13
    #9 0x55d8bf in _PyEval_EvalFrameDefault /root/CpyFuzz/experiments/Python-3.9.15/Python/ceval.c:3489:23
    #10 0x43336f in _PyEval_EvalFrame /root/CpyFuzz/experiments/Python-3.9.15/./Include/internal/pycore_ceval.h:40:12
    #11 0x43336f in function_code_fastcall /root/CpyFuzz/experiments/Python-3.9.15/Objects/call.c:330:24
    #12 0x5635fd in _PyObject_VectorcallTstate /root/CpyFuzz/experiments/Python-3.9.15/./Include/cpython/abstract.h:118:11
    #13 0x5635fd in PyObject_Vectorcall /root/CpyFuzz/experiments/Python-3.9.15/./Include/cpython/abstract.h:127:12
    #14 0x5635fd in call_function /root/CpyFuzz/experiments/Python-3.9.15/Python/ceval.c:5077:13
    #15 0x55d96e in _PyEval_EvalFrameDefault /root/CpyFuzz/experiments/Python-3.9.15/Python/ceval.c:3520:19
    #16 0x565264 in _PyEval_EvalFrame /root/CpyFuzz/experiments/Python-3.9.15/./Include/internal/pycore_ceval.h:40:12
    #17 0x565264 in _PyEval_EvalCode /root/CpyFuzz/experiments/Python-3.9.15/Python/ceval.c:4329:14
    #18 0x554061 in _PyEval_EvalCodeWithName /root/CpyFuzz/experiments/Python-3.9.15/Python/ceval.c:4361:12
    #19 0x554061 in PyEval_EvalCodeEx /root/CpyFuzz/experiments/Python-3.9.15/Python/ceval.c:4377:12
    #20 0x554061 in PyEval_EvalCode /root/CpyFuzz/experiments/Python-3.9.15/Python/ceval.c:828:12
    #21 0x5d2367 in run_eval_code_obj /root/CpyFuzz/experiments/Python-3.9.15/Python/pythonrun.c:1221:9
    #22 0x5d2367 in run_mod /root/CpyFuzz/experiments/Python-3.9.15/Python/pythonrun.c:1242:19
    #23 0x5d2367 in pyrun_file /root/CpyFuzz/experiments/Python-3.9.15/Python/pythonrun.c:1140:15
    #24 0x5cedc6 in pyrun_simple_file /root/CpyFuzz/experiments/Python-3.9.15/Python/pythonrun.c:450:13
    #25 0x5cedc6 in PyRun_SimpleFileExFlags /root/CpyFuzz/experiments/Python-3.9.15/Python/pythonrun.c:483:15
    #26 0x41e1fd in pymain_run_file /root/CpyFuzz/experiments/Python-3.9.15/Modules/main.c:373:15
    #27 0x41e1fd in pymain_run_python /root/CpyFuzz/experiments/Python-3.9.15/Modules/main.c:598:21
    #28 0x41e1fd in Py_RunMain /root/CpyFuzz/experiments/Python-3.9.15/Modules/main.c:677:5
    #29 0x41ea66 in pymain_main /root/CpyFuzz/experiments/Python-3.9.15/Modules/main.c:707:12
    #30 0x41ead2 in Py_BytesMain /root/CpyFuzz/experiments/Python-3.9.15/Modules/main.c:731:12
    #31 0x7fe7a0b8dc86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)

My environment

CPython: 3.9.15
Ubuntu: 18.0.4 (x86 64)

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