From: dmitry
Operating system: *
PHP version: 5.4Git-2012-12-13 (Git)
Package: Filter related
Bug Type: Bug
Bug description:getenv() prosuces memory leak with CGI SAPI
Description:
------------
The memory leak is well reproducible with debug build and CGI SAPI.
It also possible to see it with valgrind.
$ USE_ZEND_ALLOC=0 valgrind --leak-check=full sapi/cgi/php-cgi env.php
==27371== 136 bytes in 1 blocks are definitely lost in loss record 30 of
73
==27371== at 0x4008F6F: malloc (vg_replace_malloc.c:270)
==27371== by 0x84B1704: _emalloc (zend_alloc.c:2423)
==27371== by 0x84B1B37: _estrndup (zend_alloc.c:2596)
==27371== by 0x81E275D: php_sapi_filter (filter.c:468)
==27371== by 0x846FA0E: sapi_getenv (SAPI.c:1020)
==27371== by 0x8374964: zif_getenv (basic_functions.c:4020)
==27371== by 0x85189ED: zend_do_fcall_common_helper_SPEC
(zend_vm_execute.h:553)
==27371== by 0x851E497: ZEND_DO_FCALL_SPEC_CONST_HANDLER
(zend_vm_execute.h:2302)
==27371== by 0x8517422: execute_ex (zend_vm_execute.h:356)
==27371== by 0x8517B11: zend_execute (zend_vm_execute.h:381)
==27371== by 0x84E06D9: zend_execute_scripts (zend.c:1309)
==27371== by 0x8466F98: php_execute_script (main.c:2468)
The leak is relate to JIT initialization of
PG(http_globals)[TRACK_VARS_ENV]
Test script:
---------------
<?php
getenv("PATH");
?>
OK
Expected result:
----------------
DONE
Actual result:
--------------
DONE
[Thu Dec 13 12:39:18 2012] Script: 'ZZZZZZZZ� nG'�W�$�'
/home/dmitry/php/php5.4/ext/filter/filter.c(468) : Freeing 0xF718F3D8 (136
bytes), script=ZZZZZZZZ� nG'�W�$�
=== Total 1 memory leaks detected ===
--
Edit bug report at https://bugs.php.net/bug.php?id=63757&edit=1
--
Try a snapshot (PHP 5.4):
https://bugs.php.net/fix.php?id=63757&r=trysnapshot54
Try a snapshot (PHP 5.3):
https://bugs.php.net/fix.php?id=63757&r=trysnapshot53
Try a snapshot (trunk):
https://bugs.php.net/fix.php?id=63757&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=63757&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=63757&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=63757&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=63757&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=63757&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=63757&r=support
Expected behavior: https://bugs.php.net/fix.php?id=63757&r=notwrong
Not enough info:
https://bugs.php.net/fix.php?id=63757&r=notenoughinfo
Submitted twice:
https://bugs.php.net/fix.php?id=63757&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=63757&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=63757&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=63757&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=63757&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=63757&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=63757&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=63757&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=63757&r=mysqlcfg
