New submission from Xinmeng Xia <xi...@smail.nju.edu.cn>:
We write a fuzz tool to fuzz Python standard libraries, and find three crashes:
dis.dis(), dis.get_instructions() dis.show_code() in dis module.
dis.dis()
==========================================
xiaxinmeng:~ xiaxinmeng$ python3.10
Python 3.10.0a3 (v3.10.0a3:8bae2a958e, Dec 7 2020, 15:31:51)
[Clang 12.0.0 (clang-1200.0.32.27)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import dis
>>> dis.dis("s%-yPdrns"*1000000)
Segmentation fault: 11
=================================================
dis.get_instructions()
=================================================
Python 3.10.0a3 (v3.10.0a3:8bae2a958e, Dec 7 2020, 15:31:51)
[Clang 12.0.0 (clang-1200.0.32.27)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import dis
>>> dis.get_instructions("c/f/x"*1000000)
Segmentation fault: 11
==================================================
dis.show_code()
===================================================
Python 3.10.0a3 (v3.10.0a3:8bae2a958e, Dec 7 2020, 15:31:51)
[Clang 12.0.0 (clang-1200.0.32.27)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import dis
>>> dis.show_code("G/7/K"*1000000)
Segmentation fault: 11
====================================================
----------
components: Library (Lib)
messages: 391574
nosy: xxm
priority: normal
severity: normal
status: open
title: Fuzz dis module and find crashes for dis.dis(), dis.get_instructions()
dis.show_code()
type: crash
versions: Python 3.10
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue43909>
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