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Diffstat (limited to 'kernel/utsname.c')
-rw-r--r--kernel/utsname.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/kernel/utsname.c b/kernel/utsname.c
index 679d97a5d3fd..4a9362f9325d 100644
--- a/kernel/utsname.c
+++ b/kernel/utsname.c
@@ -102,8 +102,13 @@ static void utsns_put(void *ns)
put_uts_ns(ns);
}
-static int utsns_install(struct nsproxy *nsproxy, void *ns)
+static int utsns_install(struct nsproxy *nsproxy, void *new)
{
+ struct uts_namespace *ns = new;
+
+ if (!ns_capable(ns->user_ns, CAP_SYS_ADMIN))
+ return -EPERM;
+
get_uts_ns(ns);
put_uts_ns(nsproxy->uts_ns);
nsproxy->uts_ns = ns;