[  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 '10.128.0.147' (ECDSA) to the list of known hosts.
executing program
executing program
executing program
executing program
executing program
syzkaller login: [   78.376398][ T8423] kmemleak: 9 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff8881019ba580 (size 120):
  comm "kworker/u4:0", pid 8, jiffies 4294944037 (age 12.820s)
  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:
    [<00000000f731e31a>] alloc_pid+0x66/0x560
    [<000000006064c397>] copy_process+0x143b/0x25c0
    [<0000000061c80932>] kernel_clone+0xf3/0x670
    [<00000000e169a944>] kernel_thread+0x61/0x80
    [<000000001f3b03fb>] call_usermodehelper_exec_work+0xc4/0x120
    [<00000000be14725a>] process_one_work+0x2c9/0x600
    [<00000000c434094d>] worker_thread+0x59/0x5d0
    [<000000006f4f4c38>] kthread+0x178/0x1b0
    [<0000000057222f6f>] ret_from_fork+0x1f/0x30

BUG: memory leak
unreferenced object 0xffff88810f1822e0 (size 608):
  comm "kworker/u4:0", pid 8431, jiffies 4294944037 (age 12.820s)
  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:
    [<000000007e199b5d>] alloc_inode+0xbe/0x100
    [<00000000fdfad969>] new_inode_pseudo+0x13/0x70
    [<0000000024857ac7>] create_pipe_files+0x2b/0x2e0
    [<0000000004439cc0>] umd_setup+0x33/0x220
    [<0000000071c55b49>] call_usermodehelper_exec_async+0xb4/0x1b0
    [<0000000057222f6f>] ret_from_fork+0x1f/0x30

BUG: memory leak
unreferenced object 0xffff888110928a80 (size 24):
  comm "kworker/u4:0", pid 8431, jiffies 4294944037 (age 12.820s)
  hex dump (first 24 bytes):
    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:
    [<000000007916c26d>] security_inode_alloc+0x2a/0xb0
    [<000000002a4d55b0>] inode_init_always+0x10c/0x250
    [<00000000c95907ab>] alloc_inode+0x44/0x100
    [<00000000fdfad969>] new_inode_pseudo+0x13/0x70
    [<0000000024857ac7>] create_pipe_files+0x2b/0x2e0
    [<0000000004439cc0>] umd_setup+0x33/0x220
    [<0000000071c55b49>] call_usermodehelper_exec_async+0xb4/0x1b0
    [<0000000057222f6f>] ret_from_fork+0x1f/0x30

BUG: memory leak
unreferenced object 0xffff888110d2a840 (size 192):
  comm "kworker/u4:0", pid 8431, jiffies 4294944037 (age 12.820s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    50 a8 d2 10 81 88 ff ff 50 a8 d2 10 81 88 ff ff  P.......P.......
  backtrace:
    [<00000000772de3b5>] alloc_pipe_info+0x8f/0x320
    [<000000005847e583>] create_pipe_files+0x4d/0x2e0
    [<0000000004439cc0>] umd_setup+0x33/0x220
    [<0000000071c55b49>] call_usermodehelper_exec_async+0xb4/0x1b0
    [<0000000057222f6f>] ret_from_fork+0x1f/0x30

BUG: memory leak
unreferenced object 0xffff88810f3cfe40 (size 192):
  comm "kworker/u4:0", pid 8431, jiffies 4294944037 (age 12.820s)
  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 40 fe 3c 0f 81 88 ff ff  ........@.<.....
  backtrace:
    [<000000000aa4529d>] __d_alloc+0x2a/0x270
    [<00000000ce9aa3dc>] d_alloc_pseudo+0x19/0x40
    [<000000006eb48f59>] alloc_file_pseudo+0x5f/0x140
    [<00000000dc790696>] create_pipe_files+0x138/0x2e0
    [<0000000004439cc0>] umd_setup+0x33/0x220
    [<0000000071c55b49>] call_usermodehelper_exec_async+0xb4/0x1b0
    [<0000000057222f6f>] ret_from_fork+0x1f/0x30

BUG: memory leak
unreferenced object 0xffff8881015aa900 (size 232):
  comm "kworker/u4:0", pid 8431, jiffies 4294944037 (age 12.820s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    60 fa 03 01 81 88 ff ff 40 fe 3c 0f 81 88 ff ff  `.......@.<.....
  backtrace:
    [<00000000d1d61e66>] __alloc_file+0x1f/0xf0
    [<000000008c072a70>] alloc_empty_file+0x69/0x120
    [<00000000104c7200>] alloc_file+0x33/0x1b0
    [<000000007de68065>] alloc_file_pseudo+0xb2/0x140
    [<00000000dc790696>] create_pipe_files+0x138/0x2e0
    [<0000000004439cc0>] umd_setup+0x33/0x220
    [<0000000071c55b49>] call_usermodehelper_exec_async+0xb4/0x1b0
    [<0000000057222f6f>] ret_from_fork+0x1f/0x30