memory leak `WARNING: invalid path to external symbolizer`

[YuanchengJiang]

Bug report

Bug description:

import unittest
from test import support
import operator

class MiscTest(unittest.TestCase):
    @support.infinite_recursion(None)
    def test_recursion(self):
        from collections import UserList
        a = UserList()
        b = UserList()
        a.append(b)
        b.append(a)
        self.assertRaises(RecursionError, operator.eq, a, b)
        self.assertRaises(RecursionError, operator.ne, a, b)
        self.assertRaises(RecursionError, operator.lt, a, b)
        self.assertRaises(RecursionError, operator.le, a, b)
        self.assertRaises(RecursionError, operator.gt, a, b)

if __name__ == "__main__":
    unittest.main(verbosity=0)

----------------------------------------------------------------------
Ran 1 test in 0.052s

OK
==1752373==WARNING: invalid path to external symbolizer!
==1752373==WARNING: Failed to use and restart external symbolizer!

=================================================================
==1752373==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 1320 byte(s) in 1 object(s) allocated from:
    #0 0x5b779218fc38  (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0x380c38) (BuildId: e6730b26ad863336dbcafc01d00da0f25ad00b6d)
    #1 0x5b77925029c1  (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0x6f39c1) (BuildId: e6730b26ad863336dbcafc01d00da0f25ad00b6d)
    #2 0x5b779282c120  (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0xa1d120) (BuildId: e6730b26ad863336dbcafc01d00da0f25ad00b6d)
    #3 0x5b7792c8f6fc  (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0xe806fc) (BuildId: e6730b26ad863336dbcafc01d00da0f25ad00b6d)
    #4 0x5b779278c703  (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0x97d703) (BuildId: e6730b26ad863336dbcafc01d00da0f25ad00b6d)
    #5 0x5b779274b200  (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0x93c200) (BuildId: e6730b26ad863336dbcafc01d00da0f25ad00b6d)
    #6 0x5b7792726897  (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0x917897) (BuildId: e6730b26ad863336dbcafc01d00da0f25ad00b6d)
    #7 0x5b779239594f  (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0x58694f) (BuildId: e6730b26ad863336dbcafc01d00da0f25ad00b6d)
    #8 0x5b779273fc0c  (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0x930c0c) (BuildId: e6730b26ad863336dbcafc01d00da0f25ad00b6d)
    #9 0x5b7792726897  (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0x917897) (BuildId: e6730b26ad863336dbcafc01d00da0f25ad00b6d)
    #10 0x5b77923a246f  (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0x59346f) (BuildId: e6730b26ad863336dbcafc01d00da0f25ad00b6d)
    #11 0x5b779239f8b6  (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0x5908b6) (BuildId: e6730b26ad863336dbcafc01d00da0f25ad00b6d)
    #12 0x5b7792398119  (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0x589119) (BuildId: e6730b26ad863336dbcafc01d00da0f25ad00b6d)
    #13 0x5b7792751c67  (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0x942c67) (BuildId: e6730b26ad863336dbcafc01d00da0f25ad00b6d)
    #14 0x5b7792726897  (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0x917897) (BuildId: e6730b26ad863336dbcafc01d00da0f25ad00b6d)
    #15 0x5b7792395e41  (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0x586e41) (BuildId: e6730b26ad863336dbcafc01d00da0f25ad00b6d)
    #16 0x5b77923990d5  (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0x58a0d5) (BuildId: e6730b26ad863336dbcafc01d00da0f25ad00b6d)
    #17 0x5b77925688d2  (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0x7598d2) (BuildId: e6730b26ad863336dbcafc01d00da0f25ad00b6d)
    #18 0x5b779239644a  (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0x58744a) (BuildId: e6730b26ad863336dbcafc01d00da0f25ad00b6d)
    #19 0x5b7792726e00  (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0x917e00) (BuildId: e6730b26ad863336dbcafc01d00da0f25ad00b6d)
    #20 0x5b779274c076  (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0x93d076) (BuildId: e6730b26ad863336dbcafc01d00da0f25ad00b6d)
    #21 0x5b7792726897  (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0x917897) (BuildId: e6730b26ad863336dbcafc01d00da0f25ad00b6d)
    #22 0x5b77923a246f  (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0x59346f) (BuildId: e6730b26ad863336dbcafc01d00da0f25ad00b6d)
    #23 0x5b779239f8b6  (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0x5908b6) (BuildId: e6730b26ad863336dbcafc01d00da0f25ad00b6d)
    #24 0x5b7792398119  (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0x589119) (BuildId: e6730b26ad863336dbcafc01d00da0f25ad00b6d)
    #25 0x5b7792751c67  (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0x942c67) (BuildId: e6730b26ad863336dbcafc01d00da0f25ad00b6d)
    #26 0x5b7792726897  (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0x917897) (BuildId: e6730b26ad863336dbcafc01d00da0f25ad00b6d)
    #27 0x5b7792395e41  (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0x586e41) (BuildId: e6730b26ad863336dbcafc01d00da0f25ad00b6d)
    #28 0x5b77923990d5  (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0x58a0d5) (BuildId: e6730b26ad863336dbcafc01d00da0f25ad00b6d)
    #29 0x5b77925688d2  (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0x7598d2) (BuildId: e6730b26ad863336dbcafc01d00da0f25ad00b6d)

SUMMARY: AddressSanitizer: 1320 byte(s) leaked in 1 allocation(s).

CPython versions tested on:

CPython main branch

Operating systems tested on:

Linux

[YuanchengJiang]

I am quite unclear the root cause of this problem and if this is a cpython bug or not. Feel free to close this if it is not related. Another reproducer:

import _thread
import threading

def task():
    threading.current_thread()   

_thread.start_new_thread(task, ())