classification
Title: Integer Overflow On min()
Type: Stage: resolved
Components: Versions: Python 3.6, Python 3.5
process
Status: closed Resolution: not a bug
Dependencies: Superseder:
Assigned To: Nosy List: pabstersac, serhiy.storchaka
Priority: normal Keywords:

Created on 2016-07-18 06:02 by pabstersac, last changed 2016-07-18 06:29 by serhiy.storchaka. This issue is now closed.

Messages (2)
msg270706 - (view) Author: pablo sacristan (pabstersac) Date: 2016-07-18 06:02
There is an integer overflow on min() statements because python incorrectly checks the length to put the overflow message, so it is possible to overflow min()
min(0xFFFFFFFFFFFFFFF+100000**8000000000)
That line freezes python until you restart it, which is basically as if you were crashing it, the effect is the same, python stops working.
Hope it helps ;)
msg270719 - (view) Author: Serhiy Storchaka (serhiy.storchaka) * (Python committer) Date: 2016-07-18 06:29
See msg270712.
History
Date User Action Args
2016-07-18 06:29:00serhiy.storchakasetstatus: open -> closed

nosy: + serhiy.storchaka
messages: + msg270719

resolution: not a bug
stage: resolved
2016-07-18 06:02:39pabstersaccreate