num_levels = 0
index used : levels[num_levels - 1] = levels[4294967295]
byte offset: 4294967295 * sizeof(kv_pl)=12 -> levels + 51539607540 bytes (~51.5 GB)
kernel sinks: kv_dpm.c:2938 (get_sclk, unprivileged via AMDGPU_INFO ioctl), kv_dpm.c:1791 and :1817 (set_valid_clock_range)