Bug #71089 [Opn->Asn]: No check to duplicate zend_extension (can raise segfault)

Edit report at https://bugs.php.net/bug.php?id=71089&edit=1 ID: 71089 Updated by: remi@php.net Reported by: remi@php.net Summary: No check to duplicate zend_extension (can raise segfault) -Status: Open +Status: Assigned Type: Bug Package: *General Issues Operating System: irrevelant PHP Version: 5.6.16 -Assigned To: +Assigned To: remi Block user comment: N Private report: N Previous Comments: ------------------------------------------------------------------------ [2015-12-11 11:52:41] remi@php.net Description: ------------ You can load twice the same zend_extension... Which can create very strange bug (including segfault in zend_interned_strings_dtor) Test script: --------------- $ php -n -d zend_extension=opcache.so -d zend_extension=opcache.so -m Expected result: ---------------- PHP Warning: Module 'opcache' already loaded in Unknown on line 0 (like for standard extension) Actual result: -------------- ... [Zend Modules] Zend OPcache Zend OPcache ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=71089&edit=1