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Created attachment 1972872 [details]
Upstream patch

Description of problem:
cupsd may drop requests if many requests come at one time, because listen() backlog queue gets full. This may lead to losing print job requests etc.

Version-Release number of selected component (if applicable):
cups-2.3.3op2-18.el9

How reproducible:
Sometimes during heavy load of requests to cupsd

Steps to Reproduce:
1. send many print jobs to cupsd in short time
2. check if some of them are not processed

Actual results:
In case backlog queue got full, some jobs might not be created

Expected results:
All or at least more jobs are created

Additional info:
Upstream issue:
https://github.com/OpenPrinting/cups/issues/308

Upstream fix:
https://github.com/OpenPrinting/cups/commit/876fdc1c90

Committed as https://gitlab.com/redhat/centos-stream/rpms/cups/-/commit/bf783d17725af714e77fb1ff80df43847b8fec5b?merge_request_iid=24

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (Moderate: cups security and bug fix update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2023:6596