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-rw-r--r--net/core/net-sysfs.c8
-rw-r--r--net/core/net_namespace.c2
-rw-r--r--net/core/scm.c4
3 files changed, 11 insertions, 3 deletions
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index 3f40ea9de81..d954b56b4e4 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -1196,6 +1196,13 @@ static void remove_queue_kobjects(struct net_device *net)
#endif
}
+static bool net_current_may_mount(void)
+{
+ struct net *net = current->nsproxy->net_ns;
+
+ return ns_capable(net->user_ns, CAP_SYS_ADMIN);
+}
+
static void *net_grab_current_ns(void)
{
struct net *ns = current->nsproxy->net_ns;
@@ -1218,6 +1225,7 @@ static const void *net_netlink_ns(struct sock *sk)
struct kobj_ns_type_operations net_ns_type_operations = {
.type = KOBJ_NS_TYPE_NET,
+ .current_may_mount = net_current_may_mount,
.grab_current_ns = net_grab_current_ns,
.netlink_ns = net_netlink_ns,
.initial_ns = net_initial_ns,
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index f9765203675..81d3a9a0845 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -651,7 +651,7 @@ static int netns_install(struct nsproxy *nsproxy, void *ns)
struct net *net = ns;
if (!ns_capable(net->user_ns, CAP_SYS_ADMIN) ||
- !nsown_capable(CAP_SYS_ADMIN))
+ !ns_capable(current_user_ns(), CAP_SYS_ADMIN))
return -EPERM;
put_net(nsproxy->net_ns);
diff --git a/net/core/scm.c b/net/core/scm.c
index b4da80b1cc0..b442e7e25e6 100644
--- a/net/core/scm.c
+++ b/net/core/scm.c
@@ -56,9 +56,9 @@ static __inline__ int scm_check_creds(struct ucred *creds)
if ((creds->pid == task_tgid_vnr(current) ||
ns_capable(task_active_pid_ns(current)->user_ns, CAP_SYS_ADMIN)) &&
((uid_eq(uid, cred->uid) || uid_eq(uid, cred->euid) ||
- uid_eq(uid, cred->suid)) || nsown_capable(CAP_SETUID)) &&
+ uid_eq(uid, cred->suid)) || ns_capable(cred->user_ns, CAP_SETUID)) &&
((gid_eq(gid, cred->gid) || gid_eq(gid, cred->egid) ||
- gid_eq(gid, cred->sgid)) || nsown_capable(CAP_SETGID))) {
+ gid_eq(gid, cred->sgid)) || ns_capable(cred->user_ns, CAP_SETGID))) {
return 0;
}
return -EPERM;