Bug #78894 [Opn]: Preload: double free or corruption crash

From: Date: Wed, 18 Dec 2019 11:36:18 +0000
Subject: Bug #78894 [Opn]: Preload: double free or corruption crash
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-224392@lists.php.net to get a copy of this message 
Edit report at https://bugs.php.net/bug.php?id=78894&edit=1

 ID:                 78894
 Updated by:         nikic@php.net
 Reported by:        luis dot armengol at koyi dot tv
 Summary:            Preload: double free or corruption crash
 Status:             Open
 Type:               Bug
 Package:            opcache
 Operating System:   Centos 7.3
 PHP Version:        7.4.0
 Block user comment: N
 Private report:     N

 New Comment:

I've cloned the zf1 repo and used your preload.php (with Redis commented) with the following
command:

~/php-7.4/sapi/cli/php -c ~/php-7.4/php.ini -d opcache.preload=preload.php -S localhost:8000 -t
demos/Zend/Wildfire/public/ -d include_path=$PWD/library

I couldn't produce a segfault that way (but I only used demos/Zend/Wildfire/public because it
was bundled and looked like web code...)


Previous Comments:
------------------------------------------------------------------------
[2019-12-15 18:59:21] luis dot armengol at koyi dot tv

Still crashing in 7.4.1 RC1

I can prepare a very basic web application with ZF1 if you need it and send you wherever you want.
Meanwhile, this is a small preload file content im using that its working. If you uncomment the
block of Zend/Db classes it will crash when trying to load the site (when executing bootstrap) (at
least in my case)

--------------------------------

<?php

   set_include_path(get_include_path() . PATH_SEPARATOR .
realpath("/data/webs/001_intranet.dev.zinkia.com/lib"));

   opcache_compile_file('Zend/Exception.php');

   opcache_compile_file('Zend/Loader.php');
   opcache_compile_file('Zend/Loader/Autoloader.php');
   opcache_compile_file('Zend/Loader/Autoloader/Resource.php');
   opcache_compile_file('Zend/Loader/Autoloader/Interface.php');
   opcache_compile_file('Zend/Loader/AutoloaderFactory.php');
   opcache_compile_file('Zend/Loader/ClassMapAutoloader.php');
   opcache_compile_file('Zend/Loader/Exception.php');
   opcache_compile_file('Zend/Loader/PluginLoader.php');
   opcache_compile_file('Zend/Loader/SplAutoloader.php');
   opcache_compile_file('Zend/Loader/StandardAutoloader.php');
   opcache_compile_file('Zend/Loader/Exception/InvalidArgumentException.php');
   opcache_compile_file('Zend/Loader/PluginLoader/Exception.php');
   opcache_compile_file('Zend/Loader/PluginLoader/Interface.php');

   opcache_compile_file('Zend/Config.php');
   opcache_compile_file('Zend/Config/Exception.php');
   opcache_compile_file('Zend/Config/Writer.php');
   opcache_compile_file('Zend/Config/Writer/FileAbstract.php');
   opcache_compile_file('Zend/Config/Writer/Array.php');
   opcache_compile_file('Zend/Config/Writer/Ini.php');
   opcache_compile_file('Zend/Config/Writer/Json.php');
   opcache_compile_file('Zend/Config/Writer/Xml.php');
   opcache_compile_file('Zend/Config/Writer/Yaml.php');
   opcache_compile_file('Zend/Config/Ini.php');
   opcache_compile_file('Zend/Config/Json.php');
   opcache_compile_file('Zend/Config/Xml.php');
   opcache_compile_file('Zend/Config/Yaml.php');

   opcache_compile_file('Zend/Cache.php');
   opcache_compile_file('Zend/Cache/Backend/Interface.php');
   opcache_compile_file('Zend/Cache/Backend/ExtendedInterface.php');
   opcache_compile_file('Zend/Cache/Backend.php');
   opcache_compile_file('Zend/Cache/Backend/Apc.php');
   opcache_compile_file('Zend/Cache/Backend/File.php');
   opcache_compile_file('Zend/Cache/Backend/Redis.php');
   opcache_compile_file('Zend/Cache/Backend/Static.php');
   opcache_compile_file('Zend/Cache/Backend/ZendPlatform.php');
   opcache_compile_file('Zend/Cache/Backend/ZendServer.php');
   opcache_compile_file('Zend/Cache/Backend/ZendServer/Disk.php');
   opcache_compile_file('Zend/Cache/Backend/ZendServer/ShMem.php');
   opcache_compile_file('Zend/Cache/Core.php');
   opcache_compile_file('Zend/Cache/Frontend/Capture.php');
   opcache_compile_file('Zend/Cache/Frontend/Class.php');
   opcache_compile_file('Zend/Cache/Frontend/File.php');
   opcache_compile_file('Zend/Cache/Frontend/Function.php');
   opcache_compile_file('Zend/Cache/Frontend/Output.php');
   opcache_compile_file('Zend/Cache/Frontend/Page.php');
   opcache_compile_file('Zend/Cache/Exception.php');
   opcache_compile_file('Zend/Cache/Manager.php');

   /*
   opcache_compile_file('Zend/Db.php');
   opcache_compile_file('Zend/Db/Exception.php');
   opcache_compile_file('Zend/Db/Adapter/Exception.php');
   opcache_compile_file('Zend/Db/Adapter/Abstract.php');
   //opcache_compile_file('Zend/Db/Adapter/Db2.php');
   opcache_compile_file('Zend/Db/Adapter/Mysqli.php');
   opcache_compile_file('Zend/Db/Adapter/Oracle.php');
   opcache_compile_file('Zend/Db/Adapter/Sqlsrv.php');
   //opcache_compile_file('Zend/Db/Adapter/Db2/Exception.php');
   opcache_compile_file('Zend/Db/Adapter/Mysqli/Exception.php');
   opcache_compile_file('Zend/Db/Adapter/Oracle/Exception.php');
   opcache_compile_file('Zend/Db/Adapter/Pdo/Abstract.php');
   opcache_compile_file('Zend/Db/Adapter/Pdo/Ibm.php');
   opcache_compile_file('Zend/Db/Adapter/Pdo/Mssql.php');
   opcache_compile_file('Zend/Db/Adapter/Pdo/Mysql.php');
   opcache_compile_file('Zend/Db/Adapter/Pdo/Oci.php');
   opcache_compile_file('Zend/Db/Adapter/Pdo/Pgsql.php');
   opcache_compile_file('Zend/Db/Adapter/Pdo/Sqlite.php');
   //opcache_compile_file('Zend/Db/Adapter/Pdo/Ibm/Db2.php');
   opcache_compile_file('Zend/Db/Adapter/Pdo/Ibm/Ids.php');
   opcache_compile_file('Zend/Db/Adapter/Sqlsrv/Exception.php');
   opcache_compile_file('Zend/Db/Profiler.php');
   opcache_compile_file('Zend/Db/Profiler/Exception.php');
   opcache_compile_file('Zend/Db/Profiler/Firebug.php');
   opcache_compile_file('Zend/Db/Profiler/Query.php');
   opcache_compile_file('Zend/Db/Select/Exception.php');
   opcache_compile_file('Zend/Db/Statement/Exception.php');
   opcache_compile_file('Zend/Db/Statement/Interface.php');
   opcache_compile_file('Zend/Db/Statement.php');
   opcache_compile_file('Zend/Db/Statement/Db2.php');
   opcache_compile_file('Zend/Db/Statement/Mysqli.php');
   opcache_compile_file('Zend/Db/Statement/Oracle.php');
   opcache_compile_file('Zend/Db/Statement/Pdo.php');
   opcache_compile_file('Zend/Db/Statement/Sqlsrv.php');
   //opcache_compile_file('Zend/Db/Statement/Db2/Exception.php');
   opcache_compile_file('Zend/Db/Statement/Mysqli/Exception.php');
   opcache_compile_file('Zend/Db/Statement/Oracle/Exception.php');
   opcache_compile_file('Zend/Db/Statement/Pdo/Ibm.php');
   opcache_compile_file('Zend/Db/Statement/Pdo/Oci.php');
   opcache_compile_file('Zend/Db/Statement/Sqlsrv/Exception.php');
   opcache_compile_file('Zend/Db/Select.php');
   opcache_compile_file('Zend/Db/Table/Abstract.php');
   opcache_compile_file('Zend/Db/Table/Definition.php');
   opcache_compile_file('Zend/Db/Table/Exception.php');
   opcache_compile_file('Zend/Db/Table/Row/Abstract.php');
   opcache_compile_file('Zend/Db/Table/Row/Exception.php');
   opcache_compile_file('Zend/Db/Table/Rowset/Abstract.php');
   opcache_compile_file('Zend/Db/Table/Rowset/Exception.php');
   opcache_compile_file('Zend/Db/Table/Select/Exception.php');
   opcache_compile_file('Zend/Db/Table/Row.php');
   opcache_compile_file('Zend/Db/Table/Rowset.php');
   opcache_compile_file('Zend/Db/Table/Select.php');
   opcache_compile_file('Zend/Db/Expr.php');
   opcache_compile_file('Zend/Db/Table.php');
*/

   opcache_compile_file('Zend/Registry.php');      

----------------------------------------------------------------

------------------------------------------------------------------------
[2019-12-15 08:40:36] nikic@php.net

Putting this back to Feedback. We've fixed quite a few preloading bugs in the last week, would
be great if you could recheck whether things are working now.

------------------------------------------------------------------------
[2019-12-15 04:22:08] php-bugs at lists dot php dot net

No feedback was provided. The bug is being suspended because
we assume that you are no longer experiencing the problem.
If this is not the case and you are able to provide the
information that was requested earlier, please do so and
change the status of the bug back to "Re-Opened". Thank you.

------------------------------------------------------------------------
[2019-12-06 14:16:10] klarkent911 at gmail dot com

Hello, I probably can answer since I have a similar issue even though it's totally not related
to Zend.
Context: php-fpm running on a ubuntu based container
When trying to test our codebase against php7.4 with preloading enabled we get exactly the same
problem.
Our preload file basically contains an include_once 'vendor/autoload.php' and then a
series of require_once some_files.php` which require all the classes that we use from a
proprietary framework.
There is nothing much special done there and the requires are around 210.

------------------------------------------------------------------------
[2019-12-04 09:07:41] nikic@php.net

Can you please provide the script you use for preloading?

------------------------------------------------------------------------


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the rest of the comments, please view the bug report online at

    https://bugs.php.net/bug.php?id=78894


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