Message 110427 - Python tracker

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In-reply-to
Author	skrah
Recipients	lemburg, skrah
Date	2010年07月16日.11:10:57
SpamBayes Score	0.0003024549
Marked as misclassified	No
Message-id	<1279278661.01.0.639978151533.issue9242@psf.upfronthosting.co.za>

Content
Here is a minimal example how to reproduce this issue, extracted from UTF32LETest. valgrind --db-attach=yes --suppressions=Misc/valgrind-python.supp ./python uninitialized.py It seems that in Lib/codecs.py the equivalent of "\x00".decode('utf-32-le') is called (line 477). This leads to: PyUnicodeUCS2_DecodeUTF32Stateful (s=0x5b0fc0c "", size=1, errors=0x5add144 "strict", byteorder=0x7fefff39c, consumed=0x0) So we have a string of size 1, but s[2] and s[3] will be accessed in the function.

Content

Here is a minimal example how to reproduce this issue, extracted from
UTF32LETest.
valgrind --db-attach=yes --suppressions=Misc/valgrind-python.supp ./python uninitialized.py
It seems that in Lib/codecs.py the equivalent of "\x00".decode('utf-32-le')
is called (line 477).
This leads to:
PyUnicodeUCS2_DecodeUTF32Stateful (s=0x5b0fc0c "", size=1, errors=0x5add144 "strict", byteorder=0x7fefff39c, 
 consumed=0x0)
So we have a string of size 1, but s[2] and s[3] will be accessed
in the function.

History
Date	User	Action	Args
2010年07月16日 11:11:01	skrah	set	recipients: + skrah, lemburg
2010年07月16日 11:11:01	skrah	set	messageid: <1279278661.01.0.639978151533.issue9242@psf.upfronthosting.co.za>
2010年07月16日 11:10:59	skrah	link	issue9242 messages
2010年07月16日 11:10:58	skrah	create

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