#31212 [Opn->Fbk]: Crash related to php_session_start and configuration

ID: 31212 Updated by: tony2001@php.net Reported By: jibe at sdf dot lonestar dot org -Status: Open +Status: Feedback Bug Type: Session related Operating System: FreeBSD 5.2.1 PHP Version: 4.3.10 New Comment: Not enough information was provided for us to be able to handle this bug. Please re-read the instructions at http://bugs.php.net/how-to-report.php If you can provide more information, feel free to add it to this bug and change the status back to "Open". Thank you for your interest in PHP. Previous Comments: ------------------------------------------------------------------------ [2004-12-20 23:35:27] jibe at sdf dot lonestar dot org Description: ------------ hi gang, using the "session" extension was crashing apache here, making drupal and other software unusable. With session.save_handler set to "user" in php.ini, I can see that "save_path" arrives as 0x0 in "ps_open_user" in mod_user, and apache crashes. My fix for now is to hardcode this PS(save_path) = malloc(strlen("/tmp/") + 1); strcpy(PS(save_path), "/tmp/"); in session.c, and things work fine. Unfortunately I have no expertise to track this bug much more. Cheers! Reproduce code: --------------- Use drupal.. Expected result: ---------------- Apache crashes, and your dmesg is full of [...] pid 99709 (httpd), uid 80: exited on signal 11 [...] Actual result: -------------- Attaching httpd with gdb (session module compiled in debug mode): (gdb) (gdb) continue Continuing. Program received signal SIGSEGV, Segmentation fault. 0x2906b8bf in ps_open_user (mod_data=0xffffff00, save_path=0x0, session_name=0x85b12ac "POSTNUKESID") at /usr/ports/www/php4-session/work/php-4.3.10/ext/session/mod_user.c:95 95 SESS_ZVAL_STRING(save_path, args[0]); ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=31212&edit=1