syz_emit_ethernet(0x7a, &(0x7f0000000300)={@local, @link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x10}, @void, {@ipv6={0x86dd, @gre_packet={0x0, 0x6, "e620b7", 0x44, 0x4, 0x0, @dev={0xfe, 0x80, '\x00', 0x33}, @private2}}}}, 0x0)
BUG: memory leak
unreferenced object 0xffff88800cafb800 (size 256):
  comm "syz-executor.1", pid 26207, jiffies 4298252871 (age 25.730s)
  hex dump (first 32 bytes):
    01 00 00 00 00 00 00 00 00 00 00 00 06 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<00000000bc1af516>] mas_alloc_nodes+0x36e/0x6a0
    [<00000000d1c7718a>] mas_node_count+0x101/0x130
    [<00000000058575ed>] mas_expected_entries+0x10c/0x1b0
    [<00000000831f55b7>] dup_mmap+0x433/0xf80
    [<00000000bb744e23>] dup_mm+0x91/0x370
    [<000000009d31faef>] copy_process+0x6bb9/0x6d80
    [<00000000468b891c>] kernel_clone+0xe7/0xa60
    [<00000000d2f499d5>] __do_sys_clone3+0x1cd/0x2d0
    [<00000000ff8aed19>] do_syscall_64+0x3b/0x90
    [<000000007af72e51>] entry_SYSCALL_64_after_hwframe+0x46/0xb0

BUG: leak checking failed