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authorEric W. Biederman <ebiederm@xmission.com>2012-03-12 15:48:24 -0700
committerEric W. Biederman <ebiederm@xmission.com>2012-05-15 14:59:30 -0700
commitb38a86eb196d9402299919456fe3f28e490c76fa (patch)
tree7e5527ceb26989c48342ab1660de117ccd159279 /mm/mempolicy.c
parent14a590c3f987977d7b09ec926481ee0238c08eee (diff)
downloadlinux-b38a86eb196d9402299919456fe3f28e490c76fa.tar.gz
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>
Diffstat (limited to 'mm/mempolicy.c')
-rw-r--r--mm/mempolicy.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index cfb6c867875..7b44fc8ec99 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;