BUG: memory leak
unreferenced object 0xffff88800d1f7e00 (size 256):
  comm "syz-executor.4", pid 11056, jiffies 4297390620 (age 28.474s)
  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:
    [<0000000033d5a03e>] mas_alloc_nodes+0x36e/0x6a0
    [<00000000f9ff54d7>] mas_node_count_gfp+0x106/0x140
    [<000000002dcc794b>] mas_expected_entries+0x111/0x1c0
    [<00000000c7706062>] dup_mmap+0x41f/0xf40
    [<00000000ebff13ee>] dup_mm+0x91/0x380
    [<000000001a911ccf>] copy_process+0x5e27/0x6dd0
    [<000000006d7195bb>] kernel_clone+0xe7/0xa60
    [<000000005e6d9308>] __do_sys_clone3+0x1d5/0x2e0
    [<00000000634eacd5>] do_syscall_64+0x3b/0x90
    [<000000007fd6d1e6>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

BUG: leak checking failed