From dfc47ef8639facd77210e74be831943c2fdd9c74 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Fri, 16 Nov 2012 03:03:00 +0000 Subject: net: Push capable(CAP_NET_ADMIN) into the rtnl methods - In rtnetlink_rcv_msg convert the capable(CAP_NET_ADMIN) check to ns_capable(net->user-ns, CAP_NET_ADMIN). Allowing unprivileged users to make netlink calls to modify their local network namespace. - In the rtnetlink doit methods add capable(CAP_NET_ADMIN) so that calls that are not safe for unprivileged users are still protected. Later patches will remove the extra capable calls from methods that are safe for unprivilged users. Acked-by: Serge Hallyn Signed-off-by: "Eric W. Biederman" Signed-off-by: David S. Miller --- net/bridge/br_netlink.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'net/bridge/br_netlink.c') diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c index 65429b99a2a3..49e14937019d 100644 --- a/net/bridge/br_netlink.c +++ b/net/bridge/br_netlink.c @@ -240,6 +240,9 @@ int br_setlink(struct net_device *dev, struct nlmsghdr *nlh) struct nlattr *tb[IFLA_BRPORT_MAX]; int err; + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + ifm = nlmsg_data(nlh); protinfo = nlmsg_find_attr(nlh, sizeof(*ifm), IFLA_PROTINFO); -- cgit v1.2.3