Re: [PATCH net-next v9 04/11] ieee802154: 6lowpan: Validate link netns in newlink() of rtnl_link_ops
Kuniyuki Iwashima <[email protected]>
| Newsgroups | org.kernel.vger.linux-ppp,dev.linux.lists.bridge,org.kernel.vger.bpf,org.kernel.vger.linux-can,org.kernel.vger.linux-kernel,org.kernel.vger.linux-kselftest,org.kernel.vger.linux-rdma,org.kernel.vger.linux-wireless,org.kernel.vger.linux-wpan,org.kernel.vger.netdev,org.open-mesh.lists.batman |
|---|---|
| Message-ID | <[email protected]> |
From: Xiao Liang <[email protected]> Date: Mon, 10 Feb 2025 21:29:55 +0800 > Device denoted by IFLA_LINK is in link_net (IFLA_LINK_NETNSID) or > source netns by design, but 6lowpan uses dev_net. > > Note dev->netns_local is set to true and currently link_net is > implemented via a netns change. These together effectively reject > IFLA_LINK_NETNSID. > > This patch adds a validation to ensure link_net is either NULL or > identical to dev_net. Thus it would be fine to continue using dev_net > when rtnetlink core begins to create devices directly in target netns. > > Signed-off-by: Xiao Liang <[email protected]> Reviewed-by: Kuniyuki Iwashima <[email protected]>