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Bug #80992 fork() don't close fpm_globals.listening_socket
Submitted: 2021-04-27 08:02 UTC Modified: 2023-08-26 14:32 UTC
From: vladimir at helesic dot cz Assigned: bukka (profile)
Status: Closed Package: FPM related
PHP Version: Irrelevant OS: linux
Private report: No CVE-ID: None
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 [2021-04-27 08:02 UTC] vladimir at helesic dot cz 
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.

Patches

php-patch.patch (last revision 2021-04-27 08:05 UTC by vladimir at helesic dot cz)

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 [2021-04-27 08:05 UTC] vladimir at helesic dot cz 
The following patch has been added/updated:

Patch Name: php-patch.patch
Revision:   1619510701
URL:        https://bugs.php.net/patch-display.php?bug=80992&patch=php-patch.patch&revision=1619510701
 [2023-08-26 14:32 UTC] bukka@php.net
-Status: Open +Status: Closed -Assigned To: +Assigned To: bukka
 [2023-08-26 14:32 UTC] bukka@php.net 
This has been addressed by https://github.com/php/php-src/commit/418cdc0bea3d7787587964f42c309602d70232c6 and will be available in PHP 8.3.0.
 
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