Issue rkhunter issue

[Jürgen_T]

My server details

CPU	AMD EPYC 7452 32-Core Processor (10 core(s))
Version	Plesk Obsidian v18.0.42_build1800220314.17 os_Ubuntu 20.04
Betriebssystem	Ubuntu 20.04.4 LTS

I suddenly receive the following error message by rkhunter (version.: 1.4.6):
...
Performing Linux specific checks
libkmod: ERROR ../libkmod/libkmod-module.c:1941 kmod_module_get_holders: could not open '/sys/module/ib_umad/holders': No such file or directory
...
Does anybody knows what this mean and how to solve it?

 

[sneppa]

My two servers have the same issue (Ubuntu 18.04.6 LTS (GNU/Linux 4.15.0 x86_64) Plesk Obsidian 18.0.43.1):

/etc/cron.daily/rkhunter:
libkmod: ERROR ../libkmod/libkmod-module.c:1931 kmod_module_get_holders: could not open '/sys/module/lrw/holders': No such file or directory

and

/etc/cron.daily/rkhunter:
libkmod: ERROR ../libkmod/libkmod-module.c:1931 kmod_module_get_holders: could not open '/sys/module/ptp/holders': No such file or directory

Haven't found a solution for this issue yet.

 

[IgorG]

The mentioned errors refer to Linux kernel modules. Plesk does not manage Linux kernel modules.
Please consider re-installing or disabling the modules.