Public bug reported:
Looking at currently established connections, I was surprised to see a
non-browser and not-systemupdate process establish a connection to a remote
host. The process in question is kio_http_cache_cleaner.
Browser is firefox, but firefox didn't have any open connection at that time.
If kio_http_cache_cleaner is just cleaning a cache (presumably of a kde-related
program), why does it establish a remote connection?
user@laptop:~$ ss -ntp
State Recv-Q Send-Q
Local Address:Port Peer
Address:Port Process
CLOSE-WAIT 74 0
192.168.0.231:34402
146.75.118.49:443
users:(("kio_http_cache_",pid=107087,fd=50))
user@laptop:~$ ps auxww|grep cache
user 107087 0.0 0.1 153360 20484 ? Sl Okt28 4:28
/usr/lib/x86_64-linux-gnu/libexec/kf5/kio_http_cache_cleaner
user 319010 0.0 0.0 6592 2300 pts/1 S+ 20:13 0:00 grep
--color=auto cache
user@laptop:~$ dpkg -S
/usr/lib/x86_64-linux-gnu/libexec/kf5/kio_http_cache_cleaner
kio: /usr/lib/x86_64-linux-gnu/libexec/kf5/kio_http_cache_cleaner
Unfortunately, documentation for kio_http_cache_cleaner seems to be
really sparse (read: couldn't find anything except a few forum entries),
so I'm not sure what it really does and if it needs network access.
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: kio 5.115.0-0ubuntu6
ProcVersionSignature: Ubuntu 6.14.0-33.33~24.04.1-generic 6.14.11
Uname: Linux 6.14.0-33-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: KDE
Date: Tue Nov 4 20:32:27 2025
InstallationDate: Installed on 2025-04-03 (215 days ago)
InstallationMedia: Ubuntu 24.04.2 LTS "Noble Numbat" - Release amd64 (20250215)
SourcePackage: kio
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: kio (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug noble wayland-session
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https://bugs.launchpad.net/bugs/2130670
Title:
kio_http_cache_cleaner automatically connects to a network resource
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