[  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 '10.128.0.74' (ECDSA) to the list of known hosts.
executing program
executing program
syzkaller login: [   58.736413][ T8449] kmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
[   60.767285][ T8449] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff88811074c400 (size 232):
  comm "kworker/u4:4", pid 8451, jiffies 4294941922 (age 14.340s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    e0 47 04 01 81 88 ff ff c0 50 d7 0f 81 88 ff ff  .G.......P......
  backtrace:
    [<0000000029b0c5de>] __alloc_file+0x1f/0xf0
    [<000000002fbb6244>] alloc_empty_file+0x69/0x120
    [<000000004ae8d6d3>] alloc_file+0x33/0x1b0
    [<00000000eab8ea7d>] alloc_file_clone+0x22/0x70
    [<0000000041b5a8a0>] create_pipe_files+0x182/0x2e0
    [<00000000c1cfe566>] umd_setup+0xad/0x220
    [<000000000d59ee59>] call_usermodehelper_exec_async+0xb4/0x1b0
    [<000000000fb77eb7>] ret_from_fork+0x1f/0x30

BUG: memory leak
unreferenced object 0xffff888110792030 (size 24):
  comm "kworker/u4:4", pid 8451, jiffies 4294941922 (age 14.340s)
  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:
    [<00000000419e6b46>] security_file_alloc+0x2a/0xb0
    [<0000000055ade9e9>] __alloc_file+0x5d/0xf0
    [<000000002fbb6244>] alloc_empty_file+0x69/0x120
    [<000000004ae8d6d3>] alloc_file+0x33/0x1b0
    [<00000000eab8ea7d>] alloc_file_clone+0x22/0x70
    [<0000000041b5a8a0>] create_pipe_files+0x182/0x2e0
    [<00000000c1cfe566>] umd_setup+0xad/0x220
    [<000000000d59ee59>] call_usermodehelper_exec_async+0xb4/0x1b0
    [<000000000fb77eb7>] ret_from_fork+0x1f/0x30

BUG: memory leak
unreferenced object 0xffff88810105f880 (size 120):
  comm "kworker/u4:4", pid 3070, jiffies 4294942554 (age 8.020s)
  hex dump (first 32 bytes):
    01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<0000000071750e9a>] alloc_pid+0x66/0x560
    [<00000000fff8ceab>] copy_process+0x143b/0x25c0
    [<00000000e5ed1191>] kernel_clone+0xf3/0x670
    [<00000000c89d6355>] kernel_thread+0x61/0x80
    [<000000007f33a0f0>] call_usermodehelper_exec_work+0xc4/0x120
    [<0000000014f4fa39>] process_one_work+0x2c9/0x600
    [<0000000024cb8488>] worker_thread+0x59/0x5d0
    [<00000000ef7bef5c>] kthread+0x178/0x1b0
    [<000000000fb77eb7>] ret_from_fork+0x1f/0x30