[PATCH net 12/14] netfilter: nf_conntrack_expect: skip expectations in other netns via proc

[Florian Westphal <fw@strlen.de>]

From: Pablo Neira Ayuso <pablo@netfilter.org>

Skip expectations that do not reside in this netns.

Similar to e77e6ff502ea ("netfilter: conntrack: do not dump other netns's
conntrack entries via proc").

Fixes: 5a1fb391d881 ("netfilter: netns nf_conntrack: add ->ct_net -- pointer from conntrack to netns")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
---
 net/netfilter/nf_conntrack_expect.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/net/netfilter/nf_conntrack_expect.c b/net/netfilter/nf_conntrack_expect.c
index 8896fb20b58e..509d3eb6f56a 100644
--- a/net/netfilter/nf_conntrack_expect.c
+++ b/net/netfilter/nf_conntrack_expect.c
@@ -643,11 +643,15 @@ static int exp_seq_show(struct seq_file *s, void *v)
 {
 	struct nf_conntrack_expect *expect;
 	struct nf_conntrack_helper *helper;
+	struct net *net = seq_file_net(s);
 	struct hlist_node *n = v;
 	char *delim = "";
 
 	expect = hlist_entry(n, struct nf_conntrack_expect, hnode);
 
+	if (!net_eq(nf_ct_exp_net(expect), net))
+		return 0;
+
 	if (expect->timeout.function)
 		seq_printf(s, "%ld ", timer_pending(&expect->timeout)
 			   ? (long)(expect->timeout.expires - jiffies)/HZ : 0);
-- 
2.52.0