Edit report at https://bugs.php.net/bug.php?id=63481&edit=1
ID: 63481
Comment by: aurelijus at astdev dot lt
Reported by: aurelijus at astdev dot lt
Summary: Segmentation fault caused by unserialize()
Status: Assigned
Type: Bug
Package: Reproducible crash
Operating System: RHEL 6 & Mac OS X 10.7.4
PHP Version: 5.4.8
Assigned To: mike
Block user comment: N
Private report: N
New Comment:
It might have been another php process, it might have been the same.
1. generate $object.
2. serialize $object.
3. save $string in php session (under /tmp)
/* might be different process from here, it did not really matter,
segmenatation
fault happend in both cases */
4. get $string from session
5. dumped to a file for debugging (optional)
6. unserialize($string)
7. segmenatation fault.
Previous Comments:
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[2012-11-12 02:51:46] larue...@php.net
did you generated the "serialize data" by two PHP process?
like:
1. serializer($xxx) then write to a temporary file like /tmp/xxx.txt
2. then in another PHP script,
$data[2]= file_get_contents("/tmp/xxx.txt");
then you got your serialization data by:
$result = serialize($data); ?
thanks
------------------------------------------------------------------------
[2012-11-11 16:52:42] aurelijus at astdev dot lt
Getting serialization code might be complicated, cause it's mostly 3rd pary
framework code + DB, but I'll try.
String was generated with 5.4.8.
------------------------------------------------------------------------
[2012-11-11 08:41:52] m...@php.net
Please show the code, which does the
serialisation.
Which PHP version did the serialisation?
Serialized strings are not portable
between PHP versions, thea are just
meant to be used as temporary
representation.
------------------------------------------------------------------------
[2012-11-11 07:45:16] larue...@php.net
mike,do you have time to look at this?
seems due to the unserialize hash level.
I tried BG(seralize_lock)++ before calling zend_user_unserliaze, the problem
gone.
but that break test #63481.
I am keeping dig this, but it's better if you can look at this
------------------------------------------------------------------------
[2012-11-10 17:15:44] larue...@php.net
assigned by accident.
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