Hello,
One of our tests failed due to iptables. It works fine with kernels <=
4.11 and 4.12-rc* (from rawhide). The problem is that the command for
deleting a rule returns an error.
[root@zdtm ~]# unshare -n
[root@zdtm ~]# iptables -w -t filter --protocol tcp -A INPUT --dport
9999 -j DROP
[root@zdtm ~]# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
DROP tcp -- anywhere anywhere tcp dpt:distinct
Chain FORWARD (policy ACCEPT)
target prot opt source destination
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
[root@zdtm ~]# iptables -w -t filter --protocol tcp -D INPUT --dport
9999 -j DROP
iptables: Bad rule (does a matching rule exist in that chain?).
[root@zdtm ~]# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
DROP tcp -- anywhere anywhere tcp dpt:distinct
Chain FORWARD (policy ACCEPT)
target prot opt source destination
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
[root@zdtm ~]# uname -a
Linux
zdtm.openvz.org 4.11.5-200.fc25.x86_64 #1 SMP Wed Jun 14
17:17:29 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
https://bugzilla.redhat.com/show_bug.cgi?id=1459676
Thanks,
Andrei