BUG: memory leak
unreferenced object 0xffff8881450dc880 (size 64):
  comm "swapper/0", pid 1, jiffies 4294937974 (age 80.900s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    ff ff ff ff 00 00 00 00 00 00 00 00 30 30 00 00  ............00..
  backtrace:
    [<ffffffff86ff026b>] kmalloc include/linux/slab.h:600 [inline]
    [<ffffffff86ff026b>] kzalloc include/linux/slab.h:733 [inline]
    [<ffffffff86ff026b>] regulatory_hint_core net/wireless/reg.c:3216 [inline]
    [<ffffffff86ff026b>] regulatory_init_db+0x22f/0x2de net/wireless/reg.c:4277
    [<ffffffff81000fe3>] do_one_initcall+0x63/0x2e0 init/main.c:1295
    [<ffffffff86f4eb10>] do_initcall_level init/main.c:1368 [inline]
    [<ffffffff86f4eb10>] do_initcalls init/main.c:1384 [inline]
    [<ffffffff86f4eb10>] do_basic_setup init/main.c:1403 [inline]
    [<ffffffff86f4eb10>] kernel_init_freeable+0x255/0x2cf init/main.c:1610
    [<ffffffff845b427a>] kernel_init+0x1a/0x1c0 init/main.c:1499
    [<ffffffff8100225f>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306

[   88.