From: Parav Pandit Date: Wed, 25 Nov 2020 09:16:20 +0000 (+0200) Subject: devlink: Make sure devlink instance and port are in same net namespace X-Git-Tag: v5.15~2340^2~6^2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a7b43649507dae4e55ff0087cad4e4dd1c6d5b99;p=platform%2Fkernel%2Flinux-starfive.git devlink: Make sure devlink instance and port are in same net namespace When devlink reload operation is not used, netdev of an Ethernet port may be present in different net namespace than the net namespace of the devlink instance. Ensure that both the devlink instance and devlink port netdev are located in same net namespace. Fixes: 070c63f20f6c ("net: devlink: allow to change namespaces during reload") Signed-off-by: Parav Pandit Signed-off-by: Jakub Kicinski --- diff --git a/net/core/devlink.c b/net/core/devlink.c index 79b8df41bea3..8c5ddffd707d 100644 --- a/net/core/devlink.c +++ b/net/core/devlink.c @@ -782,9 +782,10 @@ static int devlink_nl_port_fill(struct sk_buff *msg, struct devlink *devlink, devlink_port->desired_type)) goto nla_put_failure_type_locked; if (devlink_port->type == DEVLINK_PORT_TYPE_ETH) { + struct net *net = devlink_net(devlink_port->devlink); struct net_device *netdev = devlink_port->type_dev; - if (netdev && + if (netdev && net_eq(net, dev_net(netdev)) && (nla_put_u32(msg, DEVLINK_ATTR_PORT_NETDEV_IFINDEX, netdev->ifindex) || nla_put_string(msg, DEVLINK_ATTR_PORT_NETDEV_NAME,