[  OK  ] Reached target Graphical Interface.
         Starting Update UTMP about System Runlevel Changes...
[  OK  ] Started Update UTMP about System Runlevel Changes.
         Starting Load/Save RF Kill Switch Status...
[  OK  ] Started Load/Save RF Kill Switch Status.

Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.10.12' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   54.559014][ T8476] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024)
[   54.572114][ T8476] NILFS (loop0): invalid segment: Magic number mismatch
[   54.579250][ T8476] NILFS (loop0): unable to fall back to spare super block
[   54.586510][ T8476] NILFS (loop0): error -22 while searching super root
[   60.531339][ T8475] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff8881120706a0 (size 32):
  comm "syz-executor797", pid 8476, jiffies 4294942688 (age 8.040s)
  hex dump (first 32 bytes):
    6c 6f 6f 70 30 00 00 00 00 00 00 00 00 00 00 00  loop0...........
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<000000008a578747>] kstrdup+0x36/0x70
    [<0000000088a0b078>] kstrdup_const+0x53/0x80
    [<00000000d59707f9>] kvasprintf_const+0xc2/0x110
    [<00000000ebec08d9>] kobject_set_name_vargs+0x3b/0xe0
    [<00000000ff725b39>] kobject_init_and_add+0x6d/0xc0
    [<00000000fc137156>] nilfs_sysfs_create_device_group+0x98/0x3a0
    [<000000007c217292>] init_nilfs+0x523/0x680
    [<00000000e6314aa1>] nilfs_mount+0x51b/0x890
    [<000000004e49c899>] legacy_get_tree+0x2b/0x90
    [<00000000a794cbdc>] vfs_get_tree+0x28/0x100
    [<00000000d09499db>] path_mount+0xbe4/0x1150
    [<000000001177ee7a>] __x64_sys_mount+0x18e/0x1d0
    [<00000000a745124c>] do_syscall_64+0x2d/0x70
    [<00000000638592fb>] entry_SYSCALL_64_after_hwframe+0x44/0xa9