userns: Convert stat to return values mapped from kuids and kgids

- Store uids and gids with kuid_t and kgid_t in struct kstat
- Convert uid and gids to userspace usable values with
  from_kuid and from_kgid

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/arch/sparc/kernel/sys_sparc32.c b/arch/sparc/kernel/sys_sparc32.c
index 29c478ffed91..f7392336961f 100644
--- a/arch/sparc/kernel/sys_sparc32.c
+++ b/arch/sparc/kernel/sys_sparc32.c
@@ -139,8 +139,8 @@ static int cp_compat_stat64(struct kstat *stat,
 	err |= put_user(stat->ino, &statbuf->st_ino);
 	err |= put_user(stat->mode, &statbuf->st_mode);
 	err |= put_user(stat->nlink, &statbuf->st_nlink);
-	err |= put_user(stat->uid, &statbuf->st_uid);
-	err |= put_user(stat->gid, &statbuf->st_gid);
+	err |= put_user(from_kuid_munged(current_user_ns(), stat->uid), &statbuf->st_uid);
+	err |= put_user(from_kgid_munged(current_user_ns(), stat->gid), &statbuf->st_gid);
 	err |= put_user(huge_encode_dev(stat->rdev), &statbuf->st_rdev);
 	err |= put_user(0, (unsigned long __user *) &statbuf->__pad3[0]);
 	err |= put_user(stat->size, &statbuf->st_size);