Bug #71764 [Com]: LDAP and PDO_OCI causing segfault in Apache

From: Date: Mon, 24 Apr 2017 17:58:03 +0000
Subject: Bug #71764 [Com]: LDAP and PDO_OCI causing segfault in Apache
References: 1  Groups: php.bugs 
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Edit report at https://bugs.php.net/bug.php?id=71764&edit=1

 ID:                 71764
 Comment by:         perske at uni-muenster dot de
 Reported by:        sking at psc dot ac dot uk
 Summary:            LDAP and PDO_OCI causing segfault in Apache
 Status:             Open
 Type:               Bug
 Package:            Reproducible crash
 Operating System:   SLES 11
 PHP Version:        7.0.4
 Block user comment: N
 Private report:     N

 New Comment:

I am hit by the same bug (same stack trace) with PHP 7.1.4, Oracle Instant Client 12.1 on CentOS 7
with OpenLDAP 2.4.40.


Previous Comments:
------------------------------------------------------------------------
[2016-08-10 10:49:52] ere dot maijala at helsinki dot fi

@requinix: sorry, I thought it would be quite related since both involve PDO_OCI.

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[2016-08-10 10:47:39] ere dot maijala at helsinki dot fi

It may be related that after a graceful restart of Apache, phpinfo() reports a different zlib
version being linked. In my case before graceful restart:

Compiled Version => 1.2.7
Linked Version => 1.2.7

After graceful restart:

Compiled Version => 1.2.7
Linked Version => 1.2.3.f-ora-v2

------------------------------------------------------------------------
[2016-08-10 09:18:21] requinix@php.net

@ere: That code has nothing to do with this. If you are getting a crash then you need to open a new
bug report. https://bugs.php.net/how-to-report.php

------------------------------------------------------------------------
[2016-08-10 09:02:18] ere dot maijala at helsinki dot fi

Happens also with using GD functions to create a PNG. I can reproduce on CentOS 7 with PHP 7.0.9 and
Apache 2.4.6 with the following script:

-----------------
<?php
header('Content-Type: image/png');
$img = imagecreatetruecolor(100, 100);
imagepng($img);

------------------------------------------------------------------------
[2016-03-10 12:15:06] sking at psc dot ac dot uk

I have upgraded my OpenLDAP libraries from the version that comes with my distro (2.4.26) to the
latest version (2.4.44).  This seems to fix things (fingers crossed!)

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


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