Author gregory.p.smith
Recipients gregory.p.smith
Date 2008-04-14.02:56:06
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Message-id <1208141769.9.0.601794636636.issue2629@psf.upfronthosting.co.za>
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Content
In _PyUnicode_New() a unicode object is taken from the freelist but if
the unicode_resize() call fails and returns -1, the goto onerror calls
_Py_ForgetReference on the unicode object... But it has NULL _ob_prev
and _ob_next values causing a crash when they're used.

How to reproduce:

* Make a 32-bit --with-pydebug build of Python trunk.
* Run it on a machine with lots of ram (at least 3gigs recommended, or
lots of swap and a heap of patience):

./python
Python 2.6a2+ (trunk:62336M, Apr 13 2008, 18:51:30)
>>> msg = 'A'*2000111222
>>> x = msg.decode('utf8')

It segmentation faults in _Py_ForgetReference.
History
Date User Action Args
2008-04-14 02:56:10gregory.p.smithsetspambayes_score: 0.00361462 -> 0.00361462
recipients: + gregory.p.smith
2008-04-14 02:56:09gregory.p.smithsetspambayes_score: 0.00361462 -> 0.00361462
messageid: <1208141769.9.0.601794636636.issue2629@psf.upfronthosting.co.za>
2008-04-14 02:56:08gregory.p.smithlinkissue2629 messages
2008-04-14 02:56:07gregory.p.smithcreate