r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000080), 0x0, 0x0)
ioctl$TCSETSF2(r0, 0x5413, &(0x7f0000000180)={0x0, 0x0, 0x3d43, 0x0, 0x0, "88430a433604ab5c18e3f92b3d232b9d8fa8ea"})
BUG: memory leak
unreferenced object 0xffff888016e11200 (size 256):
  comm "syz-executor.1", pid 5569, jiffies 4295319090 (age 20.280s)
  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:
    [<000000007e74ddfb>] mas_alloc_nodes+0x36e/0x6a0
    [<000000000e652996>] mas_node_count+0x101/0x130
    [<000000006376b839>] mas_expected_entries+0x10c/0x1b0
    [<0000000088949d4d>] dup_mmap+0x433/0xf80
    [<00000000e0c5fc48>] dup_mm+0x91/0x370
    [<000000006f4594c2>] copy_process+0x694b/0x6d60
    [<0000000030e95232>] kernel_clone+0xe7/0xa60
    [<000000006bf39802>] __do_sys_fork+0x7c/0xb0
    [<00000000b85a2308>] do_syscall_64+0x3b/0x90
    [<0000000080ca76fc>] entry_SYSCALL_64_after_hwframe+0x46/0xb0

BUG: leak checking failed