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-rw-r--r--ipc/namespace.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/ipc/namespace.c b/ipc/namespace.c
index f362298c5ce..6ed33c05cb6 100644
--- a/ipc/namespace.c
+++ b/ipc/namespace.c
@@ -161,8 +161,12 @@ static void ipcns_put(void *ns)
return put_ipc_ns(ns);
}
-static int ipcns_install(struct nsproxy *nsproxy, void *ns)
+static int ipcns_install(struct nsproxy *nsproxy, void *new)
{
+ struct ipc_namespace *ns = new;
+ if (!ns_capable(ns->user_ns, CAP_SYS_ADMIN))
+ return -EPERM;
+
/* Ditch state from the old ipc namespace */
exit_sem(current);
put_ipc_ns(nsproxy->ipc_ns);