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Bug #80992 fork() don't close fpm_globals.listening_socket
Submitted: 2021-04-27 08:02 UTC Modified: -
From: vladimir at helesic dot cz Assigned:
Status: Open 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
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.


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
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Last updated: Sun Sep 25 02:03:48 2022 UTC