Bug #73461 [Opn->Asn]: Segfault when always regenerating session id from read handler [PHP 7 only]

Edit report at https://bugs.php.net/bug.php?id=73461&edit=1 ID: 73461 Updated by: laruence@php.net Reported by: love at sickpeople dot se Summary: Segfault when always regenerating session id from read handler [PHP 7 only] -Status: Open +Status: Assigned Type: Bug Package: Reproducible crash PHP Version: 7.1.0RC5 -Assigned To: +Assigned To: yohgaki Block user comment: N Private report: N New Comment: stack overflow Previous Comments: ------------------------------------------------------------------------ [2016-11-04 17:17:13] love at sickpeople dot se Description: ------------ The code below segfaults in PHP 7.x including PHP 7.1 RC5. Basically this is a segfault due to infinite recursion and I know there has been reports about that before. I created this bug for one main reason: this crash does NOT occur in PHP 5.x, including 5.6.27. It "appeared" in PHP 7.0. Please see demo here: https://3v4l.org/Lc1cX Test script: --------------- session_set_save_handler ('sess', 'sess', 'sess_read', 'sess', 'sess', 'sess'); session_start (); Function sess ($foo = 'foo') { return true; } Function sess_read ($id) { session_regenerate_id (false); } ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=73461&edit=1