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/sched/cls_api.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'net/sched/cls_api.c') diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c index 7ae02892437c..ff55ed6c49b2 100644 --- a/net/sched/cls_api.c +++ b/net/sched/cls_api.c @@ -139,6 +139,8 @@ static int tc_ctl_tfilter(struct sk_buff *skb, struct nlmsghdr *n, void *arg) int err; int tp_created = 0; + if ((n->nlmsg_type != RTM_GETTFILTER) && !capable(CAP_NET_ADMIN)) + return -EPERM; replay: t = nlmsg_data(n); protocol = TC_H_MIN(t->tcm_info); -- cgit v1.2.3