mysql_query() is allocating memory incorrectly

Bug #40883	mysql_query() is allocating memory incorrectly
Submitted:	2007-03-21 16:13 UTC	Modified:	2007-03-23 08:00 UTC
From:	edwin at aucs dot org	Assigned:	dmitry (profile)
Status:	Closed	Package:	MySQL related
PHP Version:	5.2.1	OS:	WinXP
Private report:	No	CVE-ID:	None

[2007-03-21 16:13 UTC] edwin at aucs dot org

Description:
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Memory leak in mysql_query, memory not being able to be freed by mysql_free_result properly

Reproduce code:
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Refer to Listing 4 to 7 of http://www-128.ibm.com/developerworks/opensource/library/os-php-v521/

Expected result:
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No memory leakage

Actual result:
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mysql_query() is allocating memory incorrectly, even with the latest CVS snap

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[2007-03-23 08:00 UTC] dmitry@php.net

The problem was in Zend Memory Manager, that cached small memory blocks and didn't reuse cache on erealloc().

Fixed in CVS HEAD and PHP_5_2.