* [PATCH 3/3] ip6_gre: do not leak dst on tunnel destroy path
@ 2014-05-06 15:17 Sergey Popovich
0 siblings, 0 replies; only message in thread
From: Sergey Popovich @ 2014-05-06 15:17 UTC (permalink / raw)
To: netdev
On IPv6 GRE tunnel device destroy we may leak destination
if it was previously established in xmit path.
This might look like following on console:
unregister_netdevice: waiting for lo to become free. Usage count = 3
on network namespace destroy path and/or ip6_gre unloaded.
Signed-off-by: Sergey Popovich <popovich_sergei@mail.ru>
---
net/ipv6/ip6_gre.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index 75277b7..14ba77e 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -358,6 +358,7 @@ static void ip6gre_tunnel_uninit(struct net_device *dev)
struct ip6gre_net *ign = net_generic(t->net, ip6gre_net_id);
ip6gre_tunnel_unlink(ign, t);
+ ip6_tnl_dst_reset(t);
dev_put(dev);
}
--
1.8.3.4
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2014-05-06 15:17 [PATCH 3/3] ip6_gre: do not leak dst on tunnel destroy path Sergey Popovich
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