perf_event_open(0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_open_procfs(0xffffffffffffffff, &(0x7f00000013c0)='numa_maps\x00') preadv(r0, &(0x7f00000004c0)=[{&(0x7f0000001400)=""/4096, 0x1000}], 0x1, 0x0, 0x0)