userns: Use uid_eq gid_eq helpers when comparing kuids and kgids in the vfs
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
diff --git a/fs/fcntl.c b/fs/fcntl.c
index 75e7c1f..d078b75 100644
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
@@ -532,9 +532,9 @@
rcu_read_lock();
cred = __task_cred(p);
- ret = ((fown->euid == 0 ||
- fown->euid == cred->suid || fown->euid == cred->uid ||
- fown->uid == cred->suid || fown->uid == cred->uid) &&
+ ret = ((uid_eq(fown->euid, GLOBAL_ROOT_UID) ||
+ uid_eq(fown->euid, cred->suid) || uid_eq(fown->euid, cred->uid) ||
+ uid_eq(fown->uid, cred->suid) || uid_eq(fown->uid, cred->uid)) &&
!security_file_send_sigiotask(p, fown, sig));
rcu_read_unlock();
return ret;