php.net |  support |  documentation |  report a bug |  advanced search |  search howto |  statistics |  random bug |  login

go to bug id or search bugs for

Bug #61064 SegFault on memcache get
Submitted: 2012-02-12 21:30 UTC Modified: 2021-03-25 16:45 UTC
Votes:10
Avg. Score:4.0 ± 0.9
Reproduced:9 of 9 (100.0%)
Same Version:8 (88.9%)
Same OS:9 (100.0%)
From: pada at hrz dot tu-chemnitz dot de Assigned: cmb (profile)
Status: Closed Package: memcache (PECL)
PHP Version: Irrelevant OS: Linux
Private report: No CVE-ID: None
View Developer Edit
Welcome back! If you're the original bug submitter, here's where you can edit the bug or add additional notes.
If you forgot your password, you can retrieve your password here.
Password:
Status:
Package:
Bug Type:
Summary:
From: pada at hrz dot tu-chemnitz dot de
New email:
PHP Version: OS:

 

 [2012-02-12 21:30 UTC] pada at hrz dot tu-chemnitz dot de 
Description:
------------
Affected Versions:

Debian GNU/Linux
* php5 5.3.10
* php5-memcache 3.0.6

CentOS 6
* php-5.3.3
* php-pecl-memcache-3.0.5 and php-pecl-memcache-3.0.6

Seems similar to closed bug #57605

Test script:
---------------
<?php
$m=new Memcache; $m->addServer("s1."); $a = array(1=>1); $r = $m->get($a);
?>

Expected result:
----------------
No Segmentation Fault

Actual result:
--------------
[root] # php -r '$m=new Memcache; $m->addServer("s1."); $a = array(1=>1); $r = 
$m->get($a);'
PHP Warning:  MemcachePool::get(): php_network_getaddresses: getaddrinfo failed: 
Temporary failure in name resolution in Command line code on line 1
Segmentation fault

Backtrace from httpd 2.2.15 on CentOS 6 with reproducer code:

[root] # HOME=/root gdb --batch --eval-command='zbacktrace' --
exec=/usr/sbin/httpd --core=/var/run/httpd/core.httpd.21125 2>/dev/null
[New Thread 21125]
[Thread debugging using libthread_db enabled]
Core was generated by `/usr/sbin/httpd'.
Program terminated with signal 11, Segmentation fault.
#0  0x00007f710fccabce in zend_inline_hash_func (ht=0x7f711b05e350, arKey=0x1 
<Address 0x1 out of bounds>, nKeyLength=2) at /usr/src/debug/php-
5.3.3/Zend/zend_hash.h:282
282                     case 2: hash = ((hash << 5) + hash) + *arKey++; /* 
fallthrough... */
[0x7f70e74a6050] get(array(1)[0x7f711b05b350]) /var/www/htdocs/bug.php:1

Patches

Pull Requests

History

AllCommentsChangesGit/SVN commitsRelated reports
 [2012-02-12 21:36 UTC] pada at hrz dot tu-chemnitz dot de
-Summary: SegFault on memache get +Summary: SegFault on memcache get
 [2012-02-12 21:36 UTC] pada at hrz dot tu-chemnitz dot de 
Fixed subject
 [2021-03-25 16:45 UTC] cmb@php.net
-Status: Open +Status: Closed -Assigned To: +Assigned To: cmb
 [2021-03-25 16:45 UTC] cmb@php.net 
The official bug tracker for PECL/memcache is now at
<https://github.com/websupport-sk/pecl-memcache/issues>.

So, if this is still an issue with either of the current memcache
versions (4 or 8), please file an issue there.
 
PHP Copyright © 2001-2025 The PHP Group
All rights reserved. 		Last updated: Wed Jul 02 17:01:35 2025 UTC