[Python-bugs-list] [ python-Bugs-526039 ] devious code can crash structseqs

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Bugs item #526039, was opened at 2002-03-05 18:06
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Category: Python Interpreter Core
Group: Python 2.2.1 candidate
>Status: Closed
>Resolution: Fixed
Priority: 7
Submitted By: Michael Hudson (mwh)
Assigned to: Michael Hudson (mwh)
Summary: devious code can crash structseqs

Initial Comment:
Some days you feel that whenever you look closely at
something, you find bugs in it.

>>> import time
>>> class C:
...  def __getitem__(self, i):
...   raise IndexError
...  def __len__(self):
...   return 9
...
>>> time.struct_time(C())
Segmentation fault (core dumped)

This isn't hard to fix (use the PySequence_Fast API),
but I have all sorts of changes in my copy of
Objects/structseq.c and I don't want to forget this.

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>Comment By: Michael Hudson (mwh)
Date: 2002-03-06 17:18

Message:
Logged In: YES 
user_id=6656

Fixed in revision 1.5 of Objects/structseq.c.
Test in revision 1.3 of Lib/test/test_structseq.py.

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http://sourceforge.net/tracker/?func=detail&atid=105470&aid=526039&group_id=5470