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/can/gw.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'net/can') diff --git a/net/can/gw.c b/net/can/gw.c index 1f5c9785a262..574dda78eb0f 100644 --- a/net/can/gw.c +++ b/net/can/gw.c @@ -751,6 +751,9 @@ static int cgw_create_job(struct sk_buff *skb, struct nlmsghdr *nlh, struct cgw_job *gwj; int err = 0; + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + if (nlmsg_len(nlh) < sizeof(*r)) return -EINVAL; @@ -839,6 +842,9 @@ static int cgw_remove_job(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg) struct can_can_gw ccgw; int err = 0; + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + if (nlmsg_len(nlh) < sizeof(*r)) return -EINVAL; -- cgit v1.2.3-59-g8ed1b