netdev - [PATCH v3 05/21] vxlan: exit_net cleanup checks added

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <498a33a1-a62e-d776-ae61-512740e52ff1@virtuozzo.com>
Date:   Mon, 6 Nov 2017 16:23:58 +0300
From:   Vasily Averin <vvs@...tuozzo.com>
To:     netdev@...r.kernel.org
Subject: [PATCH v3 05/21] vxlan: exit_net cleanup checks added

Be sure that sock_list array initialized in net_init hook was return
to initial state

Signed-off-by: Vasily Averin <vvs@...tuozzo.com>
---
 drivers/net/vxlan.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index d7c49cf..acf5763 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -3704,6 +3704,7 @@ static void __net_exit vxlan_exit_net(struct net *net)
 	struct vxlan_net *vn = net_generic(net, vxlan_net_id);
 	struct vxlan_dev *vxlan, *next;
 	struct net_device *dev, *aux;
+	unsigned int h;
 	LIST_HEAD(list);
 
 	rtnl_lock();
@@ -3723,6 +3724,12 @@ static void __net_exit vxlan_exit_net(struct net *net)
 
 	unregister_netdevice_many(&list);
 	rtnl_unlock();
+
+	for (h = 0; h < PORT_HASH_SIZE; ++h)
+		if (WARN_ONCE(!hlist_empty(&vn->sock_list[h]),
+			      "net %x %s: sock_list is not empty\n",
+			      net->ns.inum, __func__))
+			break;
 }
 
 static struct pernet_operations vxlan_net_ops = {
-- 
2.7.4