perf_event_open(&(0x7f0000000080)={0x2, 0x80, 0xc2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0)
clone(0x0, 0x0, 0x0, 0x0, 0x0) (fail_nth: 28)
BUG: memory leak
unreferenced object 0xffff888042d6a200 (size 256):
  comm "syz-executor.5", pid 9510, jiffies 4295640940 (age 23.468s)
  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:
    [<00000000742f08bf>] mas_alloc_nodes+0x36e/0x6a0
    [<000000007993605d>] mas_node_count+0x101/0x130
    [<00000000d751eb15>] mas_expected_entries+0x10c/0x1b0
    [<000000003d23cfe1>] dup_mmap+0x41f/0xf30
    [<00000000ea1dbd11>] dup_mm+0x91/0x370
    [<00000000511f6104>] copy_process+0x6946/0x6d60
    [<000000004a8c80d3>] kernel_clone+0xe7/0xa60
    [<00000000f6313ec5>] __do_sys_clone+0xba/0x100
    [<00000000da417ad6>] do_syscall_64+0x3b/0x90
    [<00000000357d59b6>] entry_SYSCALL_64_after_hwframe+0x46/0xb0

BUG: memory leak
unreferenced object 0xffff888015744c00 (size 256):
  comm "syz-executor.0", pid 9519, jiffies 4295640984 (age 23.424s)
  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:
    [<00000000742f08bf>] mas_alloc_nodes+0x36e/0x6a0
    [<000000007993605d>] mas_node_count+0x101/0x130
    [<00000000d751eb15>] mas_expected_entries+0x10c/0x1b0
    [<000000003d23cfe1>] dup_mmap+0x41f/0xf30
    [<00000000ea1dbd11>] dup_mm+0x91/0x370
    [<00000000511f6104>] copy_process+0x6946/0x6d60
    [<000000004a8c80d3>] kernel_clone+0xe7/0xa60
    [<00000000f6313ec5>] __do_sys_clone+0xba/0x100
    [<00000000da417ad6>] do_syscall_64+0x3b/0x90
    [<00000000357d59b6>] entry_SYSCALL_64_after_hwframe+0x46/0xb0

BUG: leak checking failed