Why do I see listening on udp6 eventhough it's disabled?

[tapir]

I've disabled IPv6 on my VPS by doing

net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.eth0.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 1"

I verified that eth0 is not using IPv6.
go-shadowsocks2 listens specifically on my ip address but this is what I see

Any way to completely disable it?

[tapir]

Nevermind, this is only internal. I only need it to be disabled for outside connections.