Bug #77114 [Opn->Dup]: php-fpm master segfaults in fpm_event_epoll_wait/fpm_event_fire

Edit report at https://bugs.php.net/bug.php?id=77114&edit=1 ID: 77114 Updated by: nikic@php.net Reported by: nvizovitin at plesk dot com Summary: php-fpm master segfaults in fpm_event_epoll_wait/fpm_event_fire -Status: Open +Status: Duplicate Type: Bug Package: FPM related Operating System: CentOS 7 PHP Version: 7.2.11 Block user comment: N Private report: N New Comment: Marking this as a duplicate of bug #77185, which has detailed analysis and is now fixed. Previous Comments: ------------------------------------------------------------------------ [2019-07-10 04:06:00] mnikulin at plesk dot com The following pull request has been associated: Patch Name: Prevent use after free in fpm_event_epoll_wait On GitHub: https://github.com/php/php-src/pull/4385 Patch: https://github.com/php/php-src/pull/4385.patch ------------------------------------------------------------------------ [2019-07-10 03:09:53] mnikulin at plesk dot com Bug #77185 suggests a way to reproduce the issue. With older libc (e.g. in CentOS-7) the following environment variable may be set to certainly catch use after free cases MALLOC_PERTURB_=165 The patch fpm-race-condition.patch attached to the Bug #65398 does not eliminate the problem. ------------------------------------------------------------------------ [2019-02-27 03:03:40] mnikulin at plesk dot com Related To: Bug #75112 ------------------------------------------------------------------------ [2019-01-23 04:41:39] mnikulin at plesk dot com Related To: Bug #65398 ------------------------------------------------------------------------ [2019-01-22 07:39:42] mnikulin at plesk dot com Related To: Bug #77185 ------------------------------------------------------------------------ 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=77114 -- Edit this bug report at https://bugs.php.net/bug.php?id=77114&edit=1