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Bug #19150 Overloaded COM Property Set Leaks Memory
Submitted: 2002-08-28 10:25 UTC Modified: 2003-01-29 20:06 UTC
Votes:3
Avg. Score:4.7 ± 0.5
Reproduced:1 of 1 (100.0%)
Same Version:1 (100.0%)
Same OS:1 (100.0%)
From: msisolak at yahoo dot com Assigned:
Status: Closed Package: COM related
PHP Version: 4.2.2, 4.3.0-dev OS: Windows 2000
Private report: No CVE-ID: None
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From: msisolak at yahoo dot com
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 [2002-08-28 10:25 UTC] msisolak at yahoo dot com 
If a COM property set is called on an overloaded object that was created by a COM method call, memory leaks (as identified by an ever growing DLLHOST memory size under the ISAPI filter).  This does not happen if you use the functional COM interface.

This will leak:

$xml = new COM("MSXML.DOMDocument");
$element = $xml->createElement("test");
$element->text = str_repeat("this is a text string!", 100);
$element->Release();
$xml->Release();

but this doesn't:

$xml = new COM("MSXML.DOMDocument");
$element = com_invoke($xml, "createElement", "test");
com_set($element, "text", str_repeat("this is a text string!", 100));
com_release($element);
$xml->Release();

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 [2002-08-28 10:27 UTC] msisolak at yahoo dot com 
I did confirm that the bug exists in the current HEAD branch, but was unable to confirm the fix as the com_invoke call would fail.
 [2002-08-28 12:33 UTC] kalowsky@php.net 
updating version
 [2003-01-18 16:09 UTC] phanto@php.net 
heading for php5 i won't spend any more time on fixing memleaks in php4 code
 [2003-01-18 16:09 UTC] phanto@php.net 
suspending
 [2003-01-29 20:06 UTC] phanto@php.net 
This bug has been fixed in CVS.

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