From:             
Operating system: Debian Squeeze x86_64
PHP version:      5.3.10
Package:          FPM related
Bug Type:         Bug
Bug description:Segfault when trying to allocate more memory

Description:
------------
Kernel: 2.6.32.50 with Grsecurity+PAX

PHP Version 5.3.10-1~dotdeb.1

Grsecurity/PAX installed

Additional .ini files parsed    /etc/php5/fpm/conf.d/apc.ini,
/etc/php5/fpm/conf.d/curl.ini, /etc/php5/fpm/conf.d/gd.ini,
/etc/php5/fpm/conf.d/imagick.ini, /etc/php5/fpm/conf.d/mysql.ini,
/etc/php5/fpm/conf.d/mysqli.ini, /etc/php5/fpm/conf.d/pdo.ini,
/etc/php5/fpm/conf.d/pdo_mysql.ini, /etc/php5/fpm/conf.d/pdo_sqlite.ini,
/etc/php5/fpm/conf.d/sqlite.ini, /etc/php5/fpm/conf.d/sqlite3.ini,
/etc/php5/fpm/conf.d/suhosin.ini 



Test script:
---------------
-

Expected result:
----------------
-

Actual result:
--------------
gdb /usr/sbin/php5-fpm ./core-phpfpm
GNU gdb (GDB) 7.0.1-debian
Copyright (C) 2009 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
<http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/sbin/php5-fpm...Reading symbols from
/usr/lib/debug/usr/sbin/php5-fpm...done.
(no debugging symbols found)...done.
Reading symbols from /lib/libcrypt.so.1...(no debugging symbols
found)...done.
Loaded symbols for /lib/libcrypt.so.1
Reading symbols from /usr/lib/libz.so.1...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libz.so.1
Reading symbols from /usr/lib/libonig.so.2...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libonig.so.2
Reading symbols from /usr/lib/libcrypto.so.0.9.8...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libcrypto.so.0.9.8
Reading symbols from /usr/lib/libssl.so.0.9.8...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libssl.so.0.9.8
Reading symbols from /usr/lib/libdb-4.8.so...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libdb-4.8.so
Reading symbols from /usr/lib/libqdbm.so.14...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libqdbm.so.14
Reading symbols from /lib/libbz2.so.1.0...(no debugging symbols
found)...done.
Loaded symbols for /lib/libbz2.so.1.0
Reading symbols from /lib/librt.so.1...(no debugging symbols
found)...done.
Loaded symbols for /lib/librt.so.1
Reading symbols from /lib/libm.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib/libm.so.6
Reading symbols from /lib/libdl.so.2...(no debugging symbols
found)...done.
Loaded symbols for /lib/libdl.so.2
Reading symbols from /lib/libnsl.so.1...(no debugging symbols
found)...done.
Loaded symbols for /lib/libnsl.so.1
Reading symbols from /usr/lib/libgssapi_krb5.so.2...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libgssapi_krb5.so.2
Reading symbols from /usr/lib/libkrb5.so.3...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libkrb5.so.3
Reading symbols from /usr/lib/libk5crypto.so.3...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libk5crypto.so.3
Reading symbols from /lib/libcom_err.so.2...(no debugging symbols
found)...done.
Loaded symbols for /lib/libcom_err.so.2
Reading symbols from /usr/lib/libxml2.so.2...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libxml2.so.2
Reading symbols from /lib/libc.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib/libc.so.6
Reading symbols from /lib/libresolv.so.2...(no debugging symbols
found)...done.
Loaded symbols for /lib/libresolv.so.2
Reading symbols from /lib/libpthread.so.0...(no debugging symbols
found)...done.
Loaded symbols for /lib/libpthread.so.0
Reading symbols from /lib64/ld-linux-x86-64.so.2...(no debugging symbols
found)...done.
Loaded symbols for /lib64/ld-linux-x86-64.so.2
Reading symbols from /usr/lib/libkrb5support.so.0...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libkrb5support.so.0
Reading symbols from /lib/libkeyutils.so.1...(no debugging symbols
found)...done.
Loaded symbols for /lib/libkeyutils.so.1
Reading symbols from /usr/lib/php5/20090626/apc.so...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/php5/20090626/apc.so
Reading symbols from /usr/lib/php5/20090626/curl.so...Reading symbols from
/usr/lib/debug/usr/lib/php5/20090626/curl.so...done.
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/php5/20090626/curl.so
Reading symbols from /usr/lib/libcurl.so.4...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libcurl.so.4
Reading symbols from /usr/lib/libidn.so.11...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libidn.so.11
Reading symbols from /usr/lib/libssh2.so.1...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libssh2.so.1
Reading symbols from /usr/lib/liblber-2.4.so.2...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/liblber-2.4.so.2
Reading symbols from /usr/lib/libldap_r-2.4.so.2...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libldap_r-2.4.so.2
Reading symbols from /usr/lib/libgcrypt.so.11...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libgcrypt.so.11
Reading symbols from /usr/lib/libsasl2.so.2...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libsasl2.so.2
Reading symbols from /usr/lib/libgnutls.so.26...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libgnutls.so.26
Reading symbols from /usr/lib/libgpg-error.so.0...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libgpg-error.so.0
Reading symbols from /usr/lib/libtasn1.so.3...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libtasn1.so.3
Reading symbols from /usr/lib/php5/20090626/gd.so...Reading symbols from
/usr/lib/debug/usr/lib/php5/20090626/gd.so...done.
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/php5/20090626/gd.so
Reading symbols from /usr/lib/libt1.so.5...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libt1.so.5
Reading symbols from /usr/lib/libfreetype.so.6...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libfreetype.so.6
Reading symbols from /usr/lib/libX11.so.6...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libX11.so.6
Reading symbols from /usr/lib/libXpm.so.4...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libXpm.so.4
Reading symbols from /lib/libpng12.so.0...(no debugging symbols
found)...done.
Loaded symbols for /lib/libpng12.so.0
Reading symbols from /usr/lib/libjpeg.so.62...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libjpeg.so.62
Reading symbols from /usr/lib/libxcb.so.1...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libxcb.so.1
Reading symbols from /usr/lib/libXau.so.6...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libXau.so.6
Reading symbols from /usr/lib/libXdmcp.so.6...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libXdmcp.so.6
Reading symbols from /usr/lib/php5/20090626/imagick.so...(no debugging
symbols found)...done.
Loaded symbols for /usr/lib/php5/20090626/imagick.so
Reading symbols from /usr/lib/libMagickWand.so.3...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libMagickWand.so.3
Reading symbols from /usr/lib/libMagickCore.so.3...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libMagickCore.so.3
Reading symbols from /usr/lib/liblcms.so.1...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/liblcms.so.1
Reading symbols from /usr/lib/libtiff.so.4...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libtiff.so.4
Reading symbols from /usr/lib/liblqr-1.so.0...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/liblqr-1.so.0
Reading symbols from /lib/libglib-2.0.so.0...(no debugging symbols
found)...done.
Loaded symbols for /lib/libglib-2.0.so.0
Reading symbols from /usr/lib/libfontconfig.so.1...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libfontconfig.so.1
Reading symbols from /usr/lib/libXext.so.6...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libXext.so.6
Reading symbols from /usr/lib/libSM.so.6...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libSM.so.6
Reading symbols from /usr/lib/libICE.so.6...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libICE.so.6
Reading symbols from /usr/lib/libXt.so.6...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libXt.so.6
Reading symbols from /usr/lib/libgomp.so.1...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libgomp.so.1
Reading symbols from /usr/lib/libltdl.so.7...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libltdl.so.7
Reading symbols from /lib/libpcre.so.3...(no debugging symbols
found)...done.
Loaded symbols for /lib/libpcre.so.3
Reading symbols from /usr/lib/libexpat.so.1...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libexpat.so.1
Reading symbols from /lib/libuuid.so.1...(no debugging symbols
found)...done.
Loaded symbols for /lib/libuuid.so.1
Reading symbols from /usr/lib/php5/20090626/mysql.so...Reading symbols from
/usr/lib/debug/usr/lib/php5/20090626/mysql.so...done.
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/php5/20090626/mysql.so
Reading symbols from /usr/lib/php5/20090626/mysqli.so...Reading symbols
from /usr/lib/debug/usr/lib/php5/20090626/mysqli.so...done.
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/php5/20090626/mysqli.so
Reading symbols from /usr/lib/php5/20090626/pdo.so...Reading symbols from
/usr/lib/debug/usr/lib/php5/20090626/pdo.so...done.
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/php5/20090626/pdo.so
Reading symbols from /usr/lib/php5/20090626/pdo_mysql.so...Reading symbols
from /usr/lib/debug/usr/lib/php5/20090626/pdo_mysql.so...done.
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/php5/20090626/pdo_mysql.so
Reading symbols from /usr/lib/php5/20090626/pdo_sqlite.so...Reading symbols
from /usr/lib/debug/usr/lib/php5/20090626/pdo_sqlite.so...done.
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/php5/20090626/pdo_sqlite.so
Reading symbols from /usr/lib/libsqlite3.so.0...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libsqlite3.so.0
Reading symbols from /usr/lib/php5/20090626/sqlite.so...Reading symbols
from /usr/lib/debug/usr/lib/php5/20090626/sqlite.so...done.
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/php5/20090626/sqlite.so
Reading symbols from /usr/lib/libsqlite.so.0...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libsqlite.so.0
Reading symbols from /usr/lib/php5/20090626/sqlite3.so...Reading symbols
from /usr/lib/debug/usr/lib/php5/20090626/sqlite3.so...done.
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/php5/20090626/sqlite3.so
Reading symbols from /usr/lib/php5/20090626/suhosin.so...(no debugging
symbols found)...done.
Loaded symbols for /usr/lib/php5/20090626/suhosin.so
Reading symbols from /lib/libnss_files.so.2...(no debugging symbols
found)...done.
Loaded symbols for /lib/libnss_files.so.2
Reading symbols from /lib/libnss_compat.so.2...(no debugging symbols
found)...done.
Loaded symbols for /lib/libnss_compat.so.2
Reading symbols from /lib/libnss_nis.so.2...(no debugging symbols
found)...done.
Loaded symbols for /lib/libnss_nis.so.2
Reading symbols from /usr/lib/gconv/ISO8859-2.so...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/gconv/ISO8859-2.so
Core was generated by `php-fpm: pool xxxxx                                 
     '.
Program terminated with signal 11, Segmentation fault.
#0  zend_mm_remove_from_free_list (heap=0xe40ab0, mm_block=0x1c85988) at
/usr/src/php5/source/php5-5.3.10/Zend/zend_alloc_canary.c:880
880     /usr/src/php5/source/php5-5.3.10/Zend/zend_alloc_canary.c: No such
file or directory.
        in /usr/src/php5/source/php5-5.3.10/Zend/zend_alloc_canary.c

(gdb) bt
#0  zend_mm_remove_from_free_list (heap=0xe40ab0, mm_block=0x1c85988) at
/usr/src/php5/source/php5-5.3.10/Zend/zend_alloc_canary.c:880
#1  0x00000000006e4738 in _zend_mm_free_canary_int (heap=0xe40ab0,
p=0x1c85960) at
/usr/src/php5/source/php5-5.3.10/Zend/zend_alloc_canary.c:2133
#2  0x00000000006d0712 in zend_hash_apply_deleter (ht=0xe31168,
p=0x1126638) at /usr/src/php5/source/php5-5.3.10/Zend/zend_hash.c:814
#3  0x00000000006d0998 in zend_hash_graceful_reverse_destroy (ht=0xe31168)
at /usr/src/php5/source/php5-5.3.10/Zend/zend_hash.c:850
#4  0x00000000006b7b0e in shutdown_executor () at
/usr/src/php5/source/php5-5.3.10/Zend/zend_execute_API.c:256
#5  0x00000000006c4762 in zend_deactivate () at
/usr/src/php5/source/php5-5.3.10/Zend/zend.c:963
#6  0x000000000066f3e5 in php_request_shutdown (dummy=0xe40ab0) at
/usr/src/php5/source/php5-5.3.10/main/main.c:1664
#7  0x0000000000758ca0 in main (argc=18462176, argv=0x119c2f0) at
/usr/src/php5/source/php5-5.3.10/sapi/fpm/fpm/fpm_main.c:1886


(gdb) x/8i $pc
0x6e4178 <zend_mm_remove_from_free_list+104>:   cmp    (%rax),%rdx
0x6e417b <zend_mm_remove_from_free_list+107>:   jne    0x6e4333
<zend_mm_remove_from_free_list+547>
0x6e4181 <zend_mm_remove_from_free_list+113>:   mov    %ecx,%ecx
0x6e4183 <zend_mm_remove_from_free_list+115>:   movq   $0x0,(%rax)
0x6e418a <zend_mm_remove_from_free_list+122>:   lea   
0x698(%rdi,%rcx,8),%rax
0x6e4192 <zend_mm_remove_from_free_list+130>:   cmp    %rax,0x38(%rdx)
0x6e4196 <zend_mm_remove_from_free_list+134>:   je     0x6e41a0
<zend_mm_remove_from_free_list+144>
0x6e4198 <zend_mm_remove_from_free_list+136>:   add    $0x8,%rsp


(gdb) x/8x $sp
0x3be1991dad0:  0x01c85960      0x00000000      0x006e4738      0x00000000
0x3be1991dae0:  0x00e31168      0x00000000      0x01126638      0x00000000


(gdb) info reg
rax            0x0      0
rbx            0xe40ab0 14944944
rcx            0x9      9
rdx            0x1c85988        29907336
rsi            0x1c85988        29907336
rdi            0xe40ab0 14944944
rbp            0x1c85960        0x1c85960
rsp            0x3be1991dad0    0x3be1991dad0
r8             0x1c85988        29907336
r9             0x10cf050        17625168
r10            0x33eae48be90    3567746858640
r11            0x33eae1ac5ae    3567743845806
r12            0x1c85938        29907256
r13            0x1c85988        29907336
r14            0x50     80
r15            0x104a140        17080640
rip            0x6e4178 0x6e4178 <zend_mm_remove_from_free_list+104>
eflags         0x10206  [ PF IF RF ]
cs             0x33     51
ss             0x2b     43
ds             0x0      0
es             0x0      0
fs             0x0      0
gs             0x0      0
fctrl          0x27f    639
fstat          0x0      0
ftag           0xffff   65535
fiseg          0x0      0
fioff          0x6c2150 7086416
foseg          0x3be    958
fooff          0x1991b460       428979296
fop            0x0      0
mxcsr          0x1fa0   [ PE IM DM ZM OM UM PM ]



-- 
Edit bug report at https://bugs.php.net/bug.php?id=60990&edit=1
-- 
Try a snapshot (PHP 5.4):            
https://bugs.php.net/fix.php?id=60990&r=trysnapshot54
Try a snapshot (PHP 5.3):            
https://bugs.php.net/fix.php?id=60990&r=trysnapshot53
Try a snapshot (trunk):              
https://bugs.php.net/fix.php?id=60990&r=trysnapshottrunk
Fixed in SVN:                        
https://bugs.php.net/fix.php?id=60990&r=fixed
Fixed in SVN and need be documented: 
https://bugs.php.net/fix.php?id=60990&r=needdocs
Fixed in release:                    
https://bugs.php.net/fix.php?id=60990&r=alreadyfixed
Need backtrace:                      
https://bugs.php.net/fix.php?id=60990&r=needtrace
Need Reproduce Script:               
https://bugs.php.net/fix.php?id=60990&r=needscript
Try newer version:                   
https://bugs.php.net/fix.php?id=60990&r=oldversion
Not developer issue:                 
https://bugs.php.net/fix.php?id=60990&r=support
Expected behavior:                   
https://bugs.php.net/fix.php?id=60990&r=notwrong
Not enough info:                     
https://bugs.php.net/fix.php?id=60990&r=notenoughinfo
Submitted twice:                     
https://bugs.php.net/fix.php?id=60990&r=submittedtwice
register_globals:                    
https://bugs.php.net/fix.php?id=60990&r=globals
PHP 4 support discontinued:          
https://bugs.php.net/fix.php?id=60990&r=php4
Daylight Savings:                    https://bugs.php.net/fix.php?id=60990&r=dst
IIS Stability:                       
https://bugs.php.net/fix.php?id=60990&r=isapi
Install GNU Sed:                     
https://bugs.php.net/fix.php?id=60990&r=gnused
Floating point limitations:          
https://bugs.php.net/fix.php?id=60990&r=float
No Zend Extensions:                  
https://bugs.php.net/fix.php?id=60990&r=nozend
MySQL Configuration Error:           
https://bugs.php.net/fix.php?id=60990&r=mysqlcfg

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