Bug #73342 [Opn->Ver]: Vulnerability in php-fpm by changing stdin to non-blocking

Edit report at https://bugs.php.net/bug.php?id=73342&edit=1 ID: 73342 Updated by: nikic@php.net Reported by: xuavis at gmail dot com Summary: Vulnerability in php-fpm by changing stdin to non-blocking -Status: Open +Status: Verified Type: Bug Package: FPM related Operating System: Ubuntu 16.04 PHP Version: 7.0Git-2016-10-18 (Git) Block user comment: N Private report: N Previous Comments: ------------------------------------------------------------------------ [2018-02-23 16:55:15] nikic@php.net Related To: Bug #70185 ------------------------------------------------------------------------ [2018-02-23 16:54:23] nikic@php.net Related To: Bug #75968 ------------------------------------------------------------------------ [2018-02-23 16:54:23] nikic@php.net Related To: Bug #75968 ------------------------------------------------------------------------ [2017-07-16 17:15:17] matt at datacodesolutions dot com This bug is causing issues on our server (Centos 7 / WHM / PHP 70) as well - high load which in turn cause extremely slow performance. We use shell_exec to generate PDFs and it seems like this is causing the PHP-FPM service to get stuck in an endless loop of trying to start and then exiting. https://serverfault.com/questions/839135/nginx-php-fpm-child-exited-with-code-0 [16-Jul-2017 12:49:45] NOTICE: [pool mysite_com] child 62666 exited with code 0 after 0.103145 seconds from start [16-Jul-2017 12:49:45] NOTICE: [pool mysite_com] child 62675 started [16-Jul-2017 12:49:45] NOTICE: [pool mysite_com] child 62665 exited with code 0 after 0.108670 seconds from start [16-Jul-2017 12:49:45] NOTICE: [pool mysite_com] child 62676 started [16-Jul-2017 12:49:45] NOTICE: [pool mysite_com] child 62667 exited with code 0 after 0.111453 seconds from start [16-Jul-2017 12:49:45] NOTICE: [pool mysite_com] child 62677 started [16-Jul-2017 12:49:45] NOTICE: [pool mysite_com] child 62668 exited with code 0 after 0.112478 seconds from start [16-Jul-2017 12:49:45] NOTICE: [pool mysite_com] child 62678 started [16-Jul-2017 12:49:45] NOTICE: [pool mysite_com] child 62669 exited with code 0 after 0.098957 seconds from start [16-Jul-2017 12:49:45] NOTICE: [pool mysite_com] child 62679 started [16-Jul-2017 12:49:45] NOTICE: [pool mysite_com] child 62671 exited with code 0 after 0.094954 seconds from start [16-Jul-2017 12:49:45] NOTICE: [pool mysite_com] child 62680 started [16-Jul-2017 12:49:45] NOTICE: [pool mysite_com] child 62670 exited with code 0 after 0.101192 seconds from start ------------------------------------------------------------------------ [2017-05-16 09:05:09] yago dot riveiro at gmail dot com This bug with Centos 7.0 and php 7 can be reproduced too ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at https://bugs.php.net/bug.php?id=73342 -- Edit this bug report at https://bugs.php.net/bug.php?id=73342&edit=1