From:             
Operating system: Ubuntu Linux 11.04 x86
PHP version:      trunk-SVN-2011-05-17 (SVN)
Package:          cURL related
Bug Type:         Bug
Bug description:Segfault when CURLOPT_STDERR file pointer is closed before 
calling curl_exec

Description:
------------
Related to http://bugs.php.net/bug.php?id=48203



Curl crashes when CURLOPT_STDERR file pointer is closed before calling 

curl_exec(), i.e.



$fp = fopen(dirname(__FILE__) . '/bug48203.tmp', 'w');



$ch = curl_init();



curl_setopt($ch, CURLOPT_VERBOSE, 1);

curl_setopt($ch, CURLOPT_STDERR, $fp);

curl_setopt($ch, CURLOPT_URL, getenv("PHP_CURL_HTTP_REMOTE_SERVER"));



fclose($fp); // <-- premature close of $fp caused a crash!



curl_exec($ch); // segfault





Error is reproduced on latest svn php5.3, php5.4 and trunk

Fix is also attached here.





Test script:
---------------
Full test script is available here:
http://svn.php.net/viewvc/php/php-src/trunk/ext/curl/tests/bug48203.phpt?view=markup

Expected result:
----------------
No segfault, see test script

Actual result:
--------------
Segfault

-- 
Edit bug report at http://bugs.php.net/bug.php?id=54798&edit=1
-- 
Try a snapshot (PHP 5.2):            
http://bugs.php.net/fix.php?id=54798&r=trysnapshot52
Try a snapshot (PHP 5.3):            
http://bugs.php.net/fix.php?id=54798&r=trysnapshot53
Try a snapshot (trunk):              
http://bugs.php.net/fix.php?id=54798&r=trysnapshottrunk
Fixed in SVN:                        
http://bugs.php.net/fix.php?id=54798&r=fixed
Fixed in SVN and need be documented: 
http://bugs.php.net/fix.php?id=54798&r=needdocs
Fixed in release:                    
http://bugs.php.net/fix.php?id=54798&r=alreadyfixed
Need backtrace:                      
http://bugs.php.net/fix.php?id=54798&r=needtrace
Need Reproduce Script:               
http://bugs.php.net/fix.php?id=54798&r=needscript
Try newer version:                   
http://bugs.php.net/fix.php?id=54798&r=oldversion
Not developer issue:                 
http://bugs.php.net/fix.php?id=54798&r=support
Expected behavior:                   
http://bugs.php.net/fix.php?id=54798&r=notwrong
Not enough info:                     
http://bugs.php.net/fix.php?id=54798&r=notenoughinfo
Submitted twice:                     
http://bugs.php.net/fix.php?id=54798&r=submittedtwice
register_globals:                    
http://bugs.php.net/fix.php?id=54798&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=54798&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=54798&r=dst
IIS Stability:                       
http://bugs.php.net/fix.php?id=54798&r=isapi
Install GNU Sed:                     
http://bugs.php.net/fix.php?id=54798&r=gnused
Floating point limitations:          
http://bugs.php.net/fix.php?id=54798&r=float
No Zend Extensions:                  
http://bugs.php.net/fix.php?id=54798&r=nozend
MySQL Configuration Error:           
http://bugs.php.net/fix.php?id=54798&r=mysqlcfg

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