Bug #80992 [NEW]: fork() don't close fpm_globals.listening_socket
| From: | vladimir at helesic dot cz | Date: | Tue, 27 Apr 2021 08:02:10 +0000 |
| Subject: | Bug #80992 [NEW]: fork() don't close fpm_globals.listening_socket | ||
| Groups: | php.bugs | ||
| Request: | Send a blank email to php-bugs+get-233585@lists.php.net to get a copy of this message | ||
From: vladimir at helesic dot cz
Operating system: linux
PHP version: Irrelevant
Package: FPM related
Bug Type: Bug
Bug description:fork() don't close fpm_globals.listening_socket
Description:
------------
When we use php fpm with listening on tcp port, and run other long
running subprocess by proc_open, this process have also open socket for
listening, after restart fpm, this socket stay listening by this process
and can't start with classic "ERROR: unable to bind listening socket for
address 'port number': Address already in use"
We found that problem is in missing FD_CLOEXEC flag for this
socket(after dup()).
after setting this flag, all is ok.
patch is below and simple and applicable for all version php.
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Edit bug report at https://bugs.php.net/bug.php?id=80992&edit=1
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Fix committed: https://bugs.php.net/fix.php?id=80992&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=80992&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=80992&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=80992&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=80992&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=80992&r=support
Expected behavior: https://bugs.php.net/fix.php?id=80992&r=notwrong
Not enough info: https://bugs.php.net/fix.php?id=80992&r=notenoughinfo
Submitted twice: https://bugs.php.net/fix.php?id=80992&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=80992&r=globals
PHP version support discontinued: https://bugs.php.net/fix.php?id=80992&r=phptooold
Daylight Savings: https://bugs.php.net/fix.php?id=80992&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=80992&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=80992&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=80992&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=80992&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=80992&r=mysqlcfg