mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x1, 0x4d031, 0xffffffffffffffff, 0x0)
set_mempolicy(0x2, &(0x7f0000000080), 0x99c3)
set_mempolicy(0x4000, &(0x7f0000000340)=0x2, 0x3f)
BUG: memory leak
unreferenced object 0xffff888009577a00 (size 256):
  comm "syz-executor.2", pid 16466, jiffies 4297703759 (age 23.517s)
  hex dump (first 32 bytes):
    01 00 00 00 00 00 00 00 00 00 00 00 05 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<00000000a14ade7a>] mas_alloc_nodes+0x36e/0x6a0
    [<0000000065b4a63f>] mas_node_count+0x101/0x130
    [<00000000410d5d83>] mas_expected_entries+0x10c/0x1b0
    [<00000000d23e23d2>] dup_mmap+0x41f/0xf30
    [<00000000f52c72ba>] dup_mm+0x91/0x370
    [<0000000084c168a3>] copy_process+0x6946/0x6d60
    [<000000004a08fb78>] kernel_clone+0xe7/0xa60
    [<0000000002202514>] __do_sys_clone3+0x1cd/0x2d0
    [<00000000058a83b6>] do_syscall_64+0x3b/0x90
    [<00000000086b3f33>] entry_SYSCALL_64_after_hwframe+0x46/0xb0

BUG: leak checking failed