Warning: Permanently added '10.128.0.255' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   43.599980][ T8471] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024)
[   43.609741][ T8471] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 4096)
[   43.621587][ T8471] NILFS (loop0): invalid segment: Magic number mismatch
[   43.628620][ T8471] NILFS (loop0): unable to fall back to spare super block
[   43.635780][ T8471] NILFS (loop0): error -22 while searching super root
executing program
[   49.673296][ T8477] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024)
[   49.683060][ T8477] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 4096)
[   49.695431][ T8477] NILFS (loop0): invalid segment: Magic number mismatch
[   49.702445][ T8477] NILFS (loop0): unable to fall back to spare super block
[   49.709636][ T8477] NILFS (loop0): error -22 while searching super root
[   50.709614][ T8468] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff888110099d60 (size 32):
  comm "syz-executor039", pid 8471, jiffies 4294941625 (age 13.130s)
  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:
    [<000000000d91ef28>] kstrdup+0x36/0x70
    [<00000000374f3354>] kstrdup_const+0x53/0x80
    [<0000000019cab445>] kvasprintf_const+0xc2/0x110
    [<000000004bc23da4>] kobject_set_name_vargs+0x3b/0xe0
    [<0000000071d5c2f9>] kobject_init_and_add+0x6d/0xc0
    [<0000000074a17ad4>] nilfs_sysfs_create_device_group+0x98/0x3a0
    [<000000005e8eb26c>] init_nilfs+0x523/0x680
    [<000000007e3569de>] nilfs_mount+0x51b/0x890
    [<000000008bb9b08a>] legacy_get_tree+0x2b/0x90
    [<00000000e6acc6d2>] vfs_get_tree+0x28/0x100
    [<000000008b4f9896>] path_mount+0xc5e/0x1170
    [<000000005c9be66c>] __x64_sys_mount+0x18e/0x1d0
    [<0000000087200211>] do_syscall_64+0x2d/0x70
    [<00000000cff0d38e>] entry_SYSCALL_64_after_hwframe+0x44/0xa9