Recently I upgraded the kernel from 2.6.13 to

Everything is OK, except the following message on dmesg.
The same message is repeated during shutdown procedure:

"ipt_recent v0.3.1: Stephen Frost <>.
ipt_owner: pid, sid and command matching not supported anymore"

What is the meaning of "Not supported"?
Is this new feature at Kernel
Is this trojan / hackers attack?

How to disable this message?
Thank you.