Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm...

[firefly-linux-kernel-4.4.55.git] / kernel / cgroup.c

diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index ad8eae5bb801f52128ad3c0dab0cbbdebd685e96..a0c6af34d50063b31f6bd1fd1fc1de8b299d10ce 100644 (file)
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -2214,9 +2214,9 @@ retry_find_task:
                 * only need to check permissions on one of them.
                 */
                tcred = __task_cred(tsk);
-               if (cred->euid &&
-                   cred->euid != tcred->uid &&
-                   cred->euid != tcred->suid) {
+               if (!uid_eq(cred->euid, GLOBAL_ROOT_UID) &&
+                   !uid_eq(cred->euid, tcred->uid) &&
+                   !uid_eq(cred->euid, tcred->suid)) {
                        rcu_read_unlock();
                        ret = -EACCES;
                        goto out_unlock_cgroup;