selinux: fix a problem with IPv6 traffic denials in selinux_ip_postroute()

A previous commit c0828e50485932b7e019df377a6b0a8d1ebd3080 ("selinux:
process labeled IPsec TCP SYN-ACK packets properly in
selinux_ip_postroute()") mistakenly left out a 'break' from a switch
statement which caused problems with IPv6 traffic.

Thanks to Florian Westphal for reporting and debugging the issue.

Reported-by: Florian Westphal <fwestpha@redhat.com>
Signed-off-by: Paul Moore <pmoore@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 6c90d491fab4..e1e082796a49 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -4993,6 +4993,7 @@ static unsigned int selinux_ip_postroute(struct sk_buff *skb, int ifindex,
                         case PF_INET6:
                                 if (IP6CB(skb)->flags & IP6SKB_XFRM_TRANSFORMED)
                                         return NF_ACCEPT;
+                                break;
                         default:
                                 return NF_DROP_ERR(-ECONNREFUSED);
                         }