[  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 '10.128.10.32' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   49.714929][ T8459] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024)
[   49.724794][ T8459] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 4096)
[   49.756891][ T8459] NILFS (loop0): invalid segment: Magic number mismatch
[   49.763918][ T8459] NILFS (loop0): unable to fall back to spare super block
[   49.771071][ T8459] NILFS (loop0): error -22 while searching super root
executing program
[   54.941514][ T8464] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024)
[   54.951447][ T8464] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 4096)
[   54.983367][ T8464] NILFS (loop0): invalid segment: Magic number mismatch
[   54.990350][ T8464] NILFS (loop0): unable to fall back to spare super block
[   54.997605][ T8464] NILFS (loop0): error -22 while searching super root
executing program
[   60.217518][ T8471] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024)
[   60.227362][ T8471] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 4096)
[   60.259403][ T8471] NILFS (loop0): invalid segment: Magic number mismatch
[   60.266515][ T8471] NILFS (loop0): unable to fall back to spare super block
[   60.273821][ T8471] NILFS (loop0): error -22 while searching super root
[   61.311287][ T8458] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff88810b981920 (size 32):
  comm "syz-executor894", pid 8464, jiffies 4294942759 (age 12.550s)
  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:
    [<00000000b108169b>] kstrdup+0x36/0x70
    [<00000000393c04a7>] kstrdup_const+0x53/0x80
    [<0000000045011cc7>] kvasprintf_const+0xc2/0x110
    [<00000000ee2248ed>] kobject_set_name_vargs+0x3b/0xe0
    [<000000008b99619f>] kobject_init_and_add+0x6d/0xc0
    [<00000000ab005425>] nilfs_sysfs_create_device_group+0x98/0x3a0
    [<000000005dfd001e>] init_nilfs+0x523/0x680
    [<00000000fb8c4e4b>] nilfs_mount+0x51b/0x890
    [<00000000d7e8bf8e>] legacy_get_tree+0x2b/0x90
    [<0000000098a1ae5f>] vfs_get_tree+0x28/0x100
    [<00000000122faad8>] path_mount+0xc5e/0x1170
    [<00000000ebb28645>] __x64_sys_mount+0x18e/0x1d0
    [<00000000b475e052>] do_syscall_64+0x2d/0x70
    [<00000000c18d0f2e>] entry_SYSCALL_64_after_hwframe+0x44/0xa9