[  OK  ] Reached target Login Prompts.
[  OK  ] Reached target Multi-User System.
[  OK  ] Reached target Graphical Interface.
         Starting Update UTMP about System Runlevel Changes...
[  OK  ] Started Update UTMP about System Runlevel Changes.

Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.0.20' (ECDSA) to the list of known hosts.
executing program
executing program
syzkaller login: [   62.784511][ T8424] kmemleak: 4 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff88810ff94d00 (size 232):
  comm "kworker/u4:6", pid 8426, jiffies 4294942371 (age 13.610s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    a0 bb 67 40 81 88 ff ff 00 5f 08 10 81 88 ff ff  ..g@....._......
  backtrace:
    [<00000000092b340d>] __alloc_file+0x1f/0xf0
    [<000000009bf4fa17>] alloc_empty_file+0x69/0x120
    [<000000007c85b3c5>] alloc_file+0x33/0x1b0
    [<000000002f903ac5>] alloc_file_pseudo+0xb2/0x140
    [<0000000075feadc1>] create_pipe_files+0x138/0x2e0
    [<00000000a188c94b>] umd_setup+0x33/0x220
    [<000000005cd1d0c9>] call_usermodehelper_exec_async+0xb4/0x1b0
    [<0000000010c7afd4>] ret_from_fork+0x1f/0x30

BUG: memory leak
unreferenced object 0xffff888111d4fe40 (size 24):
  comm "kworker/u4:6", pid 8426, jiffies 4294942371 (age 13.610s)
  hex dump (first 24 bytes):
    00 00 00 00 00 00 00 00 b0 8e 93 00 81 88 ff ff  ................
    00 00 00 00 00 00 00 00                          ........
  backtrace:
    [<00000000ea662a0c>] security_file_alloc+0x2a/0xb0
    [<000000000f53b60d>] __alloc_file+0x5d/0xf0
    [<000000009bf4fa17>] alloc_empty_file+0x69/0x120
    [<000000007c85b3c5>] alloc_file+0x33/0x1b0
    [<000000002f903ac5>] alloc_file_pseudo+0xb2/0x140
    [<0000000075feadc1>] create_pipe_files+0x138/0x2e0
    [<00000000a188c94b>] umd_setup+0x33/0x220
    [<000000005cd1d0c9>] call_usermodehelper_exec_async+0xb4/0x1b0
    [<0000000010c7afd4>] ret_from_fork+0x1f/0x30

BUG: memory leak
unreferenced object 0xffff88810ee81f00 (size 232):
  comm "kworker/u4:6", pid 8426, jiffies 4294942371 (age 13.610s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    a0 bb 67 40 81 88 ff ff c0 c0 07 10 81 88 ff ff  ..g@............
  backtrace:
    [<00000000092b340d>] __alloc_file+0x1f/0xf0
    [<000000009bf4fa17>] alloc_empty_file+0x69/0x120
    [<000000007c85b3c5>] alloc_file+0x33/0x1b0
    [<0000000042508054>] alloc_file_clone+0x22/0x70
    [<000000003c89954a>] create_pipe_files+0x182/0x2e0
    [<00000000fe43bf8e>] umd_setup+0xad/0x220
    [<000000005cd1d0c9>] call_usermodehelper_exec_async+0xb4/0x1b0
    [<0000000010c7afd4>] ret_from_fork+0x1f/0x30

BUG: memory leak
unreferenced object 0xffff888111d4fe70 (size 24):
  comm "kworker/u4:6", pid 8426, jiffies 4294942371 (age 13.610s)
  hex dump (first 24 bytes):
    00 00 00 00 00 00 00 00 b0 8e 93 00 81 88 ff ff  ................
    00 00 00 00 00 00 00 00                          ........
  backtrace:
    [<00000000ea662a0c>] security_file_alloc+0x2a/0xb0
    [<000000000f53b60d>] __alloc_file+0x5d/0xf0
    [<000000009bf4fa17>] alloc_empty_file+0x69/0x120
    [<000000007c85b3c5>] alloc_file+0x33/0x1b0
    [<0000000042508054>] alloc_file_clone+0x22/0x70
    [<000000003c89954a>] create_pipe_files+0x182/0x2e0
    [<00000000fe43bf8e>] umd_setup+0xad/0x220
    [<000000005cd1d0c9>] call_usermodehelper_exec_async+0xb4/0x1b0
    [<0000000010c7afd4>] ret_from_fork+0x1f/0x30