userns: Convert the move_pages, and migrate_pages permission checks to use uid_eq

Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index cfb6c8678754..7b44fc8ec99c 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -1334,8 +1334,8 @@ SYSCALL_DEFINE4(migrate_pages, pid_t, pid, unsigned long, maxnode,
          * userid as the target process.
          */
         tcred = __task_cred(task);
-        if (cred->euid != tcred->suid && cred->euid != tcred->uid &&
-            cred->uid  != tcred->suid && cred->uid  != tcred->uid &&
+        if (!uid_eq(cred->euid, tcred->suid) && !uid_eq(cred->euid, tcred->uid) &&
+            !uid_eq(cred->uid,  tcred->suid) && !uid_eq(cred->uid,  tcred->uid) &&
             !capable(CAP_SYS_NICE)) {
                 rcu_read_unlock();
                 err = -EPERM;