New submission from Xinmeng Xia <[email protected]>:
The following program can trigger segfault on all releases of Python. I think
it may be caused by incorrect arguments.
Version of Python: 3.6 - master(3.11.0a0)
system: ubuntu 16.04
test.py
================================
import select
def test_select_mutated():
a = []
class F:
def fileno(a):
del test_select_mutated()[-1]
return sys.__stdout__.fileno()
a[:] = [F()] * 10
select.select([], a, []), ([], a[:5], [])
test_select_mutated()
================================
output:
---------------------------------------------------------------------
xxm@xxm:~$ '/home/xxm/Desktop/compiler/cpython-main/python' test.py
Segmentation fault (core dumped)
---------------------------------------------------------------------
----------
components: Interpreter Core
messages: 398027
nosy: xxm
priority: normal
severity: normal
status: open
title: Incorrect arguments in function select() cause segfault
type: crash
versions: Python 3.10, Python 3.11, Python 3.6, Python 3.7, Python 3.8, Python
3.9
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Python tracker <[email protected]>
<https://bugs.python.org/issue44718>
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