[  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 '10.128.0.43' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   50.620129][ T8471] NILFS (loop0): unable to read secondary superblock (blocksize = 1024)
[   50.628553][ T8471] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024)
[   50.639875][ T8471] NILFS (loop0): I/O error reading segment
[   50.646501][ T8471] NILFS (loop0): error -5 while searching super root
executing program
[   56.043393][ T8477] NILFS (loop0): unable to read secondary superblock (blocksize = 1024)
[   56.051812][ T8477] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024)
[   56.062447][ T8477] NILFS (loop0): I/O error reading segment
[   56.068500][ T8477] NILFS (loop0): error -5 while searching super root
[   57.294448][ T8470] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff8881103eb580 (size 32):
  comm "syz-executor790", pid 8471, jiffies 4294942334 (age 13.090s)
  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:
    [<0000000005b6bf25>] kstrdup+0x36/0x70
    [<000000004d924fc7>] kstrdup_const+0x53/0x80
    [<0000000004bf9d15>] kvasprintf_const+0xc2/0x110
    [<000000003545ccb8>] kobject_set_name_vargs+0x3b/0xe0
    [<00000000ed718a3f>] kobject_init_and_add+0x6d/0xc0
    [<00000000c8767041>] nilfs_sysfs_create_device_group+0x98/0x3a0
    [<0000000051eba05b>] init_nilfs+0x523/0x680
    [<0000000008050177>] nilfs_mount+0x51b/0x890
    [<000000001925c35a>] legacy_get_tree+0x2b/0x90
    [<00000000bd3ea427>] vfs_get_tree+0x28/0x100
    [<0000000005bbd20d>] path_mount+0xc5e/0x1170
    [<00000000a0632467>] __x64_sys_mount+0x18e/0x1d0
    [<000000008c938b7e>] do_syscall_64+0x2d/0x70
    [<000000004183b5fb>] entry_SYSCALL_64_after_hwframe+0x44/0xa9