This is a note to let you know that I've just added the patch titled
net: ip6_tunnel: Unregister catch-all devices
to the 5.11-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-ip6_tunnel-unregister-catch-all-devices.patch
and it can be found in the queue-5.11 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 941ea91e87a6e879ed82dad4949f6234f2702bec Mon Sep 17 00:00:00 2001
From: Hristo Venev <hristo@xxxxxxxxxx>
Date: Mon, 12 Apr 2021 20:41:17 +0300
Subject: net: ip6_tunnel: Unregister catch-all devices
From: Hristo Venev <hristo@xxxxxxxxxx>
commit 941ea91e87a6e879ed82dad4949f6234f2702bec upstream.
Similarly to the sit case, we need to remove the tunnels with no
addresses that have been moved to another network namespace.
Fixes: 0bd8762824e73 ("ip6tnl: add x-netns support")
Signed-off-by: Hristo Venev <hristo@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/ipv6/ip6_tunnel.c | 10 ++++++++++
1 file changed, 10 insertions(+)
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -2244,6 +2244,16 @@ static void __net_exit ip6_tnl_destroy_t
t = rtnl_dereference(t->next);
}
}
+
+ t = rtnl_dereference(ip6n->tnls_wc[0]);
+ while (t) {
+ /* If dev is in the same netns, it has already
+ * been added to the list by the previous loop.
+ */
+ if (!net_eq(dev_net(t->dev), net))
+ unregister_netdevice_queue(t->dev, list);
+ t = rtnl_dereference(t->next);
+ }
}
static int __net_init ip6_tnl_init_net(struct net *net)
Patches currently in stable-queue which might be from hristo@xxxxxxxxxx are
queue-5.11/net-ip6_tunnel-unregister-catch-all-devices.patch
queue-5.11/net-sit-unregister-catch-all-devices.patch
