Description of problem:

We have a RHEL7.2 System running with a zarafa mailserver
After some days the webserver shows the following errors and zarafa webmail shows errors
[Thu Jan 07 19:03:37.083671 2016] [core:notice] [pid 3864] AH00052: child pid 95202 exit signal Segmentation fault (11)
[Thu Jan 07 19:03:38.087174 2016] [core:notice] [pid 3864] AH00052: child pid 95199 exit signal Segmentation fault (11)
[Thu Jan 07 19:03:40.089149 2016] [core:notice] [pid 3864] AH00052: child pid 95204 exit signal Segmentation fault (11)
[Thu Jan 07 19:03:41.091406 2016] [core:notice] [pid 3864] AH00052: child pid 95211 exit signal Segmentation fault (11)

A restart of the webserver solves the problem


Version-Release number of selected component (if applicable):
php-5.4.16-36.el7_1.x86_64


How reproducible:
Install 
php-5.4.16-36.el7_1.x86_64
zarafa-server-7.2.1.51838-319.2.x86_64

Steps to Reproduce:
1. Install zarafa
2. use webapp about 2 weeks
3. try to upload attachments -> DOES NOT WORK
4. the errors above occur

Actual results:


Expected results:


Additional info:

According to zarafa the problem is related to the following php-Bug
https://bugs.php.net/bug.php?id=62129
which is fixed upstream in 5.4.20
http://php.net/ChangeLog-5.php


Here you can find the related zarafa issue
https://jira.zarafa.com/browse/WA-8975

The related diff between 5.4.19 and 5.4.20 is
diff php-5.4.19/ext/session/session.c php-5.4.20/ext/session/session.c
...
2249,2250c2249,2253
<       /* restore the orig callback */
<       php_rfc1867_callback = php_session_rfc1867_orig_callback;
---
>       /* reset rfc1867 callbacks */
>       php_session_rfc1867_orig_callback = NULL;
>       if (php_rfc1867_callback == php_session_rfc1867_callback) {
>               php_rfc1867_callback = NULL;
>       }

 
Can you backport the fix?

Regards

Hansjoerg Maurer