userns03: test that setgroups can't be reenabled

If the setgroups file has the value "deny", then the setgroups(2) system
call can't subsequently be reenabled (by writing "allow" to the file) in
this user namespace.  (Attempts to do so will fail with the error
EPERM.)

Signed-off-by: Yuan Sun <sunyuan3@huawei.com>
Signed-off-by: Jan Stancek <jstancek@redhat.com>
1 file changed