Bug #77099 [Com]: PHP crashes with segfault

Edit report at https://bugs.php.net/bug.php?id=77099&edit=1 ID: 77099 Comment by: ih at vollzeitjobs dot de Reported by: info at phpgangsta dot de Summary: PHP crashes with segfault Status: Open Type: Bug Package: Pspell related Operating System: Ubuntu 18.04 PHP Version: 7.2.11 Block user comment: N Private report: N New Comment: I'm experiencing the same, the small testscript crashes every 3-5 times I call it. Debian 9.9 ii php7.3 7.3.8-1+0~20190807.43+debian9~1.gbp7731bf ii php7.3-pspell 7.3.8-1+0~20190807.43+debian9~1.gbp7731bf PHP 7.3.8-1+0~20190807.43+debian9~1.gbp7731bf (cli) (built: Aug 7 2019 19:46:25) ( NTS ) Copyright (c) 1997-2018 The PHP Group Zend Engine v3.3.8, Copyright (c) 1998-2018 Zend Technologies with Zend OPcache v7.3.8-1+0~20190807.43+debian9~1.gbp7731bf, Copyright (c) 1999-2018, by Zend Technologies --- Aug 13 11:30:55 jobs-herford kernel: [353562.678985] traps: php-fpm7.3[8795] general protection ip:7f1fc1622828 sp:7fffa675bfe0 error:0 Aug 13 11:30:57 jobs-herford kernel: [353563.968722] traps: php-fpm7.3[8845] general protection ip:7f1fc16227ec sp:7fffa675bfe0 error:0 Aug 13 11:30:58 jobs-herford kernel: [353565.366368] traps: php-fpm7.3[8801] general protection ip:7f1fc16227ec sp:7fffa675bfe0 error:0 Aug 13 11:31:03 jobs-herford kernel: [353570.736281] traps: php-fpm7.3[8857] general protection ip:7f1fc16227ec sp:7fffa675bfe0 error:0 Aug 13 11:31:05 jobs-herford kernel: [353572.048257] php-fpm7.3[8851]: segfault at 8 ip 00007f1fc1622828 sp 00007fffa675bfe0 error 4 in libaspell.so.15.2.0[7f1fc15a8000+a3000] Aug 13 11:31:06 jobs-herford kernel: [353573.510952] traps: php-fpm7.3[8842] general protection ip:7f1fc1622828 sp:7fffa675bfe0 error:0 Previous Comments: ------------------------------------------------------------------------ [2018-11-03 14:58:04] info at phpgangsta dot de Description: ------------ If I use pspell for spellchecking, it sometimes crashes with a segfault. Every 3-5 times I call the script via Apache, Apache crashes: [Sat Nov 03 15:36:12.592943 2018] [core:notice] [pid 5264] AH00051: child pid 29189 exit signal Segmentation fault (11), possible coredump in /etc/apache2 [Sat Nov 03 15:37:33.689349 2018] [core:notice] [pid 5264] AH00051: child pid 29965 exit signal Segmentation fault (11), possible coredump in /etc/apache2 [Sat Nov 03 15:40:12.879852 2018] [core:notice] [pid 5264] AH00051: child pid 30367 exit signal Segmentation fault (11), possible coredump in /etc/apache2 The small script below can reproduce the problem: If you call it from outside via HTTP, it crashes every 3-5 requests: curl https://url.de/spellchecker.php See segmentation faults above. $ php -v PHP 7.2.11-3+ubuntu18.04.1+deb.sury.org+1 (cli) (built: Oct 25 2018 06:44:08) ( NTS ) Copyright (c) 1997-2018 The PHP Group Zend Engine v3.2.0, Copyright (c) 1998-2018 Zend Technologies with Zend OPcache v7.2.11-3+ubuntu18.04.1+deb.sury.org+1, Copyright (c) 1999-2018, by Zend Technologies It seems to just happen with de_DE. If I change it to en_US, it does not crash. Maybe it has to do with Umlauts oder similar? Interestingly I'm not able to reproduce it on the command line... Segmentation fault also happens on Ubuntu 16.04 with PHP 7.1: $ php -v PHP 7.1.23-3+ubuntu16.04.1+deb.sury.org+1 (cli) (built: Oct 25 2018 06:43:19) ( NTS ) Copyright (c) 1997-2018 The PHP Group Zend Engine v3.1.0, Copyright (c) 1998-2018 Zend Technologies with Zend OPcache v7.1.23-3+ubuntu16.04.1+deb.sury.org+1, Copyright (c) 1999-2018, by Zend Technologies Test script: --------------- <?php $plink = pspell_new('de_DE', "", "", "utf-8", PSPELL_FAST); pspell_suggest($plink, '___'); Expected result: ---------------- no crash Actual result: -------------- crash with segmentation fault ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=77099&edit=1