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Bug #36886 memory leaks in stream problems
Submitted: 2006-03-28 11:01 UTC Modified: 2006-03-28 18:01 UTC
From: sqchen at citiz dot net Assigned:
Status: Closed Package: Streams related
PHP Version: 5.1.2 OS: redhat 7.3
Private report: No CVE-ID:
 [2006-03-28 11:01 UTC] sqchen at citiz dot net
It seems that stream function can cause memory leaks so easily. We hope the stream developer  fix it as soon as possible.

Here is another one: it leaks when you add ./configure --enable-debug

Reproduce code:
class upper_filter extends php_user_filter{
      function filter($in, $out, &$consumed, $closing) {
$fp=fopen("2.txt", "w");
$bucket=stream_bucket_new($fp, "Abc\n");
     $bucket->data = strtoupper($bucket->data);
         $consumed += $bucket->datalen;
   stream_bucket_append($out, $bucket);
return PSFS_PASS_ON;
stream_filter_register("upper", "upper_filter");
$fp=fopen("2.txt", "w");
stream_filter_append($fp,  "upper");
fread($fp, 1024);
fwrite($fp, "Thank you\n");

Actual result:
[sqchen@localhost sqchen]$ $php tt.php


[Tue Mar 28 16:54:43 2006]  Script:  'tt.php'
/home/sqchen/sqchen/php-5.1.2/main/streams/filter.c(129) :  Freeing 0x083EE864 (10 bytes), script=tt.php
[Tue Mar 28 16:54:43 2006]  Script:  'tt.php'
/home/sqchen/sqchen/php-5.1.2/main/streams/filter.c(126) :  Freeing 0x083EE814 (32 bytes), script=tt.php
=== Total 2 memory leaks detected ===


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 [2006-03-28 18:01 UTC]
This bug has been fixed in CVS.

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