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IDProjectCategoryView StatusLast Update
0001090Rocky-Linux-9conntrack-toolspublic2025-04-09 15:00
ReporterJacek Tomasiak Assigned ToLouis Abel  
PrioritynormalSeverityminorReproducibilityalways
Status closedResolutionunable to reproduce 
Summary0001090: conntrack tools fail to add "unknown" protocol entries
DescriptionBetween version 1.4.4 and 1.4.5 of conntrack-tools (1.0.7 and 1.0.8 of libnetfilter_conntrack) upstream switched from libnfnetlink to libmnl for building and parsing netlink messages. This introduced regression in handling entries with protocols which are not natively supported by conntrack (e.g. igmp). Trying to create such entries resulted in "Operation failed: invalid parameters" errors.

Upstream fix for this problem is already available at https://git.netfilter.org/libnetfilter_conntrack/commit/src/conntrack/build_mnl.c?id=45ec4b51e8290759e0d87d9405965be1352a4325
Steps To Reproduce$ sudo conntrack -I -s 192.168.1.9 -d 101.168.1.9 -t 300 -p igmp

expected output:
conntrack v1.4.5 (conntrack-tools): 1 flow entries have been created.

actual output:
conntrack v1.4.5 (conntrack-tools): Operation failed: invalid parameters
TagsNo tags attached.

Activities

Louis Abel

Louis Abel

2025-04-09 15:00

administrator   ~0009743

Closing as unable to reproduce on Rocky Linux 9.5. This issue is likely fixed.

[nazu@router ~]$ sudo conntrack -I -s 192.168.1.9 -d 101.168.1.9 -t 300 -p igmp
conntrack v1.4.7 (conntrack-tools): 1 flow entries have been created.

Issue History

Date Modified Username Field Change
2022-11-25 19:37 Jacek Tomasiak New Issue
2025-04-09 15:00 Louis Abel Assigned To => Louis Abel
2025-04-09 15:00 Louis Abel Status new => closed
2025-04-09 15:00 Louis Abel Resolution open => unable to reproduce
2025-04-09 15:00 Louis Abel Note Added: 0009743