openat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x142, 0x3)
openat2(0xffffffffffffffff, &(0x7f0000000640)='./file1\x00', &(0x7f0000000b00)={0xc942, 0x40, 0x1d}, 0x18)
BUG: memory leak
unreferenced object 0xffff88801b86b800 (size 256):
  comm "syz-executor.3", pid 22520, jiffies 4296826548 (age 23.272s)
  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:
    [<0000000054a5ed83>] mas_alloc_nodes+0x36e/0x6a0
    [<00000000c4146432>] mas_node_count_gfp+0x106/0x140
    [<00000000af598d08>] mas_expected_entries+0x111/0x1c0
    [<000000007eba8693>] dup_mmap+0x41f/0xf40
    [<000000009199cca6>] dup_mm+0x91/0x380
    [<00000000fc595c49>] copy_process+0x5e27/0x6dd0
    [<00000000a2979dc4>] kernel_clone+0xe7/0xa60
    [<000000002ade1549>] __do_sys_clone3+0x1d5/0x2e0
    [<0000000030cc49e9>] do_syscall_64+0x3b/0x90
    [<00000000f2f1cae2>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

BUG: leak checking failed