Bug #71703 [Fbk->Opn]: Segfault when CURLOPT_HTTPHEADER empty array and reset

Edit report at https://bugs.php.net/bug.php?id=71703&edit=1 ID: 71703 User updated by: giel at cyclesoftware dot nl Reported by: giel at cyclesoftware dot nl Summary: Segfault when CURLOPT_HTTPHEADER empty array and reset -Status: Feedback +Status: Open Type: Bug Package: cURL related Operating System: Ubuntu PHP Version: 7.0.3 Block user comment: N Private report: N New Comment: Unfortunately I cannot make the trace. I tried this again with a new build (to enable debugging). Now the segfault is gone. Must say that the segfault was during a prof-gen build. Thanks! Previous Comments: ------------------------------------------------------------------------ [2016-03-02 17:03:30] laruence@php.net Thank you for this bug report. To properly diagnose the problem, we need a backtrace to see what is happening behind the scenes. To find out how to generate a backtrace, please read http://bugs.php.net/bugs-generating-backtrace.php for *NIX and http://bugs.php.net/bugs-generating-backtrace-win32.php for Win32 Once you have generated a backtrace, please submit it to this bug report and change the status back to "Open". Thank you for helping us make PHP better. I can not reproduce this ------------------------------------------------------------------------ [2016-03-02 16:14:40] giel at cyclesoftware dot nl Description: ------------ When the following code is executed it segfaults. Removing curl_setopt($ch, CURLOPT_HTTPHEADER, array()); fixes the problem. Test script: --------------- <?php $uri = "http://www.google.com"; $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $uri); curl_setopt($ch, CURLOPT_HTTPHEADER, array()); curl_setopt($ch, CURLOPT_HTTPHEADER, array( 'User-Agent:Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36',)); ?> Actual result: -------------- segfault ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=71703&edit=1