BUG: memory leak
unreferenced object 0xffff88800cd15e00 (size 256):
  comm "syz-executor.1", pid 6142, jiffies 4295474729 (age 24.586s)
  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:
    [<000000007fafca6e>] mas_alloc_nodes+0x36e/0x6a0
    [<000000000edf03a3>] mas_node_count+0x101/0x130
    [<00000000d63a481c>] mas_expected_entries+0x10c/0x1b0
    [<00000000a98bb2b7>] dup_mmap+0x433/0xf80
    [<000000000251553b>] dup_mm+0x91/0x370
    [<0000000040170ec3>] copy_process+0x694b/0x6d60
    [<00000000e478d2ea>] kernel_clone+0xe7/0xa60
    [<00000000256d6d03>] __do_sys_clone3+0x1cd/0x2d0
    [<000000003691e3f1>] do_syscall_64+0x3b/0x90
    [<00000000be218f52>] entry_SYSCALL_64_after_hwframe+0x46/0xb0

BUG: leak checking failed