Merge tag 'leds-for-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j...

[linux-2.6-microblaze.git] / net / netfilter / nft_chain_filter.c

diff --git a/net/netfilter/nft_chain_filter.c b/net/netfilter/nft_chain_filter.c
index 84c9024..d21834b 100644 (file)
--- a/net/netfilter/nft_chain_filter.c
+++ b/net/netfilter/nft_chain_filter.c
@@ -318,6 +318,10 @@ static int nf_tables_netdev_event(struct notifier_block *this,
            event != NETDEV_CHANGENAME)
                return NOTIFY_DONE;
 
+       ctx.net = maybe_get_net(ctx.net);
+       if (!ctx.net)
+               return NOTIFY_DONE;
+
        nfnl_lock(NFNL_SUBSYS_NFTABLES);
        list_for_each_entry(table, &ctx.net->nft.tables, list) {
                if (table->family != NFPROTO_NETDEV)
@@ -334,6 +338,7 @@ static int nf_tables_netdev_event(struct notifier_block *this,
                }
        }
        nfnl_unlock(NFNL_SUBSYS_NFTABLES);
+       put_net(ctx.net);
 
        return NOTIFY_DONE;
 }