Bug #54798 [NEW]: Segfault when CURLOPT_STDERR file pointer is closed before calling curl_exec

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