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Bug #58099 double free of zval
Submitted: 2008-03-12 22:48 UTC Modified: 2013-07-16 06:18 UTC
From: xuefer at gmail dot com Assigned:
Status: Wont fix Package: event (PECL)
PHP Version: 5.2.1 OS: linux
Private report: No CVE-ID: None
View Developer Edit
 [2008-03-12 22:48 UTC] xuefer at gmail dot com 
Description:
------------
output from valgrind

==16985== Invalid read of size 4
==16985==    at 0x82AEA2C: _zval_ptr_dtor (in /usr/bin/php5)
==16985==    by 0x402BD59: callback_to_php (event.c:803)
==16985==    by 0x402C3B2: zif_event_dispatch (event.c:648)
==16985==    by 0x82EC7BA: (within /usr/bin/php5)
==16985==    by 0x82DD1BE: execute (in /usr/bin/php5)
==16985==    by 0x82EC13A: (within /usr/bin/php5)
==16985==    by 0x82DD1BE: execute (in /usr/bin/php5)
==16985==    by 0x82BC092: zend_execute_scripts (in /usr/bin/php5)
==16985==    by 0x8273352: php_execute_script (in /usr/bin/php5)
==16985==    by 0x834D83E: main (in /usr/bin/php5)
==16985==  Address 0x4a8ede8 is 8 bytes inside a block of size 16 free'd
==16985==    at 0x402465C: free (vg_replace_malloc.c:323)
==16985==    by 0x829FB82: _efree (in /usr/bin/php5)
==16985==    by 0x82AEA51: _zval_ptr_dtor (in /usr/bin/php5)
==16985==    by 0x402BD4E: callback_to_php (event.c:801)
==16985==    by 0x402C3B2: zif_event_dispatch (event.c:648)
==16985==    by 0x82EC7BA: (within /usr/bin/php5)
==16985==    by 0x82DD1BE: execute (in /usr/bin/php5)
==16985==    by 0x82EC13A: (within /usr/bin/php5)
==16985==    by 0x82DD1BE: execute (in /usr/bin/php5)
==16985==    by 0x82BC092: zend_execute_scripts (in /usr/bin/php5)
==16985==    by 0x8273352: php_execute_script (in /usr/bin/php5)
==16985==    by 0x834D83E: main (in /usr/bin/php5)


==16985== Invalid read of size 4
==16985==    at 0x82AEA32: _zval_ptr_dtor (in /usr/bin/php5)
==16985==    by 0x402BD59: callback_to_php (event.c:803)
==16985==    by 0x402C3B2: zif_event_dispatch (event.c:648)
==16985==    by 0x82EC7BA: (within /usr/bin/php5)
==16985==    by 0x82DD1BE: execute (in /usr/bin/php5)
==16985==    by 0x82EC13A: (within /usr/bin/php5)
==16985==    by 0x82DD1BE: execute (in /usr/bin/php5)
==16985==    by 0x82BC092: zend_execute_scripts (in /usr/bin/php5)
==16985==    by 0x8273352: php_execute_script (in /usr/bin/php5)
==16985==    by 0x834D83E: main (in /usr/bin/php5)
==16985==  Address 0x4a8ede8 is 8 bytes inside a block of size 16 free'd
==16985==    at 0x402465C: free (vg_replace_malloc.c:323)
==16985==    by 0x829FB82: _efree (in /usr/bin/php5)
==16985==    by 0x82AEA51: _zval_ptr_dtor (in /usr/bin/php5)
==16985==    by 0x402BD4E: callback_to_php (event.c:801)
==16985==    by 0x402C3B2: zif_event_dispatch (event.c:648)
==16985==    by 0x82EC7BA: (within /usr/bin/php5)
==16985==    by 0x82DD1BE: execute (in /usr/bin/php5)
==16985==    by 0x82EC13A: (within /usr/bin/php5)
==16985==    by 0x82DD1BE: execute (in /usr/bin/php5)
==16985==    by 0x82BC092: zend_execute_scripts (in /usr/bin/php5)
==16985==    by 0x8273352: php_execute_script (in /usr/bin/php5)
==16985==    by 0x834D83E: main (in /usr/bin/php5)

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 [2013-07-16 06:18 UTC] osmanov@php.net
-Status: Open +Status: Wont fix
 [2013-07-16 06:18 UTC] osmanov@php.net 
Thank you for taking the time to report a problem with PHP.
Unfortunately you are not using a current version of PHP -- 
the problem might already be fixed. Please download a new
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If you are able to reproduce the bug with one of the latest
versions of PHP, please change the PHP version on this bug report
to the version you tested and change the status back to "Open".
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