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vti6: fix uninit when using x-netns

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When the kernel deleted a vti6 interface, this interface was not removed from
the tunnels list. Thus, when the ip6_vti module was removed, this old interface
was found and the kernel tried to delete it again. This was leading to a kernel
panic.

Fixes: 61220ab349 ("vti6: Enable namespace changing")
Signed-off-by: Yao Xiwei <xiwei.yao@6wind.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
This commit is contained in:
Yao Xiwei 2015-04-02 17:31:17 +02:00 committed by Steffen Klassert
parent 68c11e98ef
commit 092a29a40b
1 changed files with 1 additions and 2 deletions
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3
net/ipv6/ip6_vti.c
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@ -288,8 +288,7 @@ static struct ip6_tnl *vti6_locate(struct net *net, struct __ip6_tnl_parm *p,
static void vti6_dev_uninit(struct net_device *dev)
{
struct ip6_tnl *t = netdev_priv(dev);
struct net *net = dev_net(dev);
struct vti6_net *ip6n = net_generic(net, vti6_net_id);
struct vti6_net *ip6n = net_generic(t->net, vti6_net_id);
if (dev == ip6n->fb_tnl_dev)
RCU_INIT_POINTER(ip6n->tnls_wc[0], NULL);