The selinux_ip_postroute_iptables_compat function in
security/selinux/hooks.c in the SELinux subsystem in the Linux kernel
before 18.104.22.168, and 2.6.28.x before 22.214.171.124, when compat_net is
enabled, omits calls to avc_has_perm for the (1) node and (2) port,
which allows local users to bypass intended restrictions on network
traffic. NOTE: this was incorrectly reported as an issue fixed in
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