--- fs/btrfs/acl.c

+++ fs/btrfs/acl.c

@@ -157,6 +157,9 @@ static int btrfs_xattr_set_acl(struct in

int ret = 0;

struct posix_acl *acl = NULL;

+ if (!is_owner_or_cap(inode))

+ return -EPERM;

+

if (value) {

acl = posix_acl_from_xattr(value, size);

if (acl == NULL) {