[  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 '10.128.0.237' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [  297.314010][ T8462] kmemleak: 7 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff888101d73200 (size 120):
  comm "kworker/u4:1", pid 24, jiffies 4294966384 (age 8.320s)
  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:
    [<000000009380490c>] alloc_pid+0x66/0x560
    [<000000001faec37c>] copy_process+0x143b/0x25c0
    [<000000008c7fc016>] kernel_clone+0xf3/0x670
    [<0000000077318f48>] kernel_thread+0x61/0x80
    [<000000007cb0db2a>] call_usermodehelper_exec_work+0xc4/0x120
    [<00000000f87ab9b2>] process_one_work+0x2c9/0x600
    [<0000000007550c8b>] worker_thread+0x59/0x5d0
    [<00000000d59457cd>] kthread+0x178/0x1b0
    [<000000009ad83039>] ret_from_fork+0x1f/0x30

BUG: memory leak
unreferenced object 0xffff88810fa0e7e0 (size 608):
  comm "kworker/u4:1", pid 8465, jiffies 4294966384 (age 8.320s)
  hex dump (first 32 bytes):
    80 11 04 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff  ................
  backtrace:
    [<000000004405192e>] alloc_inode+0xbe/0x100
    [<0000000065fc2581>] new_inode_pseudo+0x13/0x70
    [<0000000083e3031a>] create_pipe_files+0x2b/0x2e0
    [<000000002a1a2cac>] umd_setup+0x33/0x220
    [<0000000094177fec>] call_usermodehelper_exec_async+0xb4/0x1b0
    [<000000009ad83039>] ret_from_fork+0x1f/0x30

BUG: memory leak
unreferenced object 0xffff88810fb69f00 (size 192):
  comm "kworker/u4:1", pid 8465, jiffies 4294966384 (age 8.320s)
  hex dump (first 32 bytes):
    00 00 50 40 02 00 00 00 00 00 00 00 00 00 00 00  ..P@............
    00 00 00 00 00 00 00 00 00 9f b6 0f 81 88 ff ff  ................
  backtrace:
    [<0000000092e2bb34>] __d_alloc+0x2a/0x270
    [<0000000040c3d84c>] d_alloc_pseudo+0x19/0x40
    [<00000000dfaab57e>] alloc_file_pseudo+0x5f/0x140
    [<000000005a989f90>] create_pipe_files+0x138/0x2e0
    [<000000002a1a2cac>] umd_setup+0x33/0x220
    [<0000000094177fec>] call_usermodehelper_exec_async+0xb4/0x1b0
    [<000000009ad83039>] ret_from_fork+0x1f/0x30

BUG: memory leak
unreferenced object 0xffff888101835200 (size 232):
  comm "kworker/u4:1", pid 8465, jiffies 4294966384 (age 8.320s)
  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 00 9f b6 0f 81 88 ff ff  .G..............
  backtrace:
    [<0000000016d4a601>] __alloc_file+0x1f/0xf0
    [<00000000547bad1f>] alloc_empty_file+0x69/0x120
    [<0000000017e6cdc5>] alloc_file+0x33/0x1b0
    [<00000000b5d75c4c>] alloc_file_pseudo+0xb2/0x140
    [<000000005a989f90>] create_pipe_files+0x138/0x2e0
    [<000000002a1a2cac>] umd_setup+0x33/0x220
    [<0000000094177fec>] call_usermodehelper_exec_async+0xb4/0x1b0
    [<000000009ad83039>] ret_from_fork+0x1f/0x30

BUG: memory leak
unreferenced object 0xffff888110d3d840 (size 24):
  comm "kworker/u4:1", pid 8465, jiffies 4294966384 (age 8.320s)
  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:
    [<00000000cd7c00a8>] security_file_alloc+0x2a/0xb0
    [<000000003456a36f>] __alloc_file+0x5d/0xf0
    [<00000000547bad1f>] alloc_empty_file+0x69/0x120
    [<0000000017e6cdc5>] alloc_file+0x33/0x1b0
    [<00000000b5d75c4c>] alloc_file_pseudo+0xb2/0x140
    [<000000005a989f90>] create_pipe_files+0x138/0x2e0
    [<000000002a1a2cac>] umd_setup+0x33/0x220
    [<0000000094177fec>] call_usermodehelper_exec_async+0xb4/0x1b0
    [<000000009ad83039>] ret_from_fork+0x1f/0x30