Edit report at https://bugs.php.net/bug.php?id=61106&edit=1

 ID:                 61106
 Updated by:         ni...@php.net
 Reported by:        ni...@php.net
 Summary:            Segfault when using header_register_callback
-Status:             Open
+Status:             Closed
 Type:               Bug
 Package:            Reproducible crash
 PHP Version:        5.4.0RC7
-Assigned To:        
+Assigned To:        nikic
 Block user comment: N
 Private report:     N

 New Comment:

This bug has been fixed in SVN.

Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.

 For Windows:

http://windows.php.net/snapshots/
 
Thank you for the report, and for helping us make PHP better.




Previous Comments:
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[2012-03-02 08:04:44] ni...@php.net

Automatic comment from SVN on behalf of nikic
Revision: http://svn.php.net/viewvc/?view=revision&revision=323803
Log: Fix bug #61106 Segfault when using header_register_callback

The callback was double dtored

------------------------------------------------------------------------
[2012-02-16 16:53:46] ni...@php.net

Description:
------------
Using header_register_callback may cause crashes due to a double zval_ptr_dtor.

The double zval_ptr_dtor occurs in 
http://lxr.php.net/xref/PHP_TRUNK/main/SAPI.c#sapi_deactivate in lines 
http://lxr.php.net/xref/PHP_TRUNK/main/SAPI.c#498 and 
http://lxr.php.net/xref/PHP_TRUNK/main/SAPI.c#546.

For me the issue is quite hard to reproduce reliably (especially after 
accidentally removing my only non-random reproduce script ^^), but I think it 
should be obvious that the double dtoring can cause a segfault if you try hard.

The issue can be fixed by removing one of the two calls.



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