Warning: Permanently added '10.128.0.148' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   51.376597][ T8412] loop0: detected capacity change from 0 to 4
[   51.383817][ T8412] NILFS (loop0): unable to read secondary superblock (blocksize = 1024)
[   51.392300][ T8412] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024)
[   51.402349][ T8412] NILFS (loop0): unable to read secondary superblock (blocksize = 2048)
[   51.410905][ T8412] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 2048)
[   51.420967][ T8412] NILFS (loop0): mounting unchecked fs
[   51.426850][ T8412] NILFS (loop0): I/O error reading segment
[   51.432944][ T8412] NILFS (loop0): error -5 while searching super root
executing program
[   56.570016][ T8422] loop0: detected capacity change from 0 to 4
[   56.578080][ T8422] NILFS (loop0): unable to read secondary superblock (blocksize = 1024)
[   56.586613][ T8422] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024)
[   56.596929][ T8422] NILFS (loop0): unable to read secondary superblock (blocksize = 2048)
[   56.605327][ T8422] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 2048)
[   56.615571][ T8422] NILFS (loop0): mounting unchecked fs
[   56.621332][ T8422] NILFS (loop0): I/O error reading segment
[   56.627590][ T8422] NILFS (loop0): error -5 while searching super root
executing program
[   61.812076][ T8430] loop0: detected capacity change from 0 to 4
[   61.818907][ T8430] NILFS (loop0): unable to read secondary superblock (blocksize = 1024)
[   61.827737][ T8430] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024)
[   61.837692][ T8430] NILFS (loop0): unable to read secondary superblock (blocksize = 2048)
[   61.846210][ T8430] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 2048)
[   61.856122][ T8430] NILFS (loop0): mounting unchecked fs
[   61.861828][ T8430] NILFS (loop0): I/O error reading segment
[   61.868012][ T8430] NILFS (loop0): error -5 while searching super root
executing program
[   67.066525][ T8436] loop0: detected capacity change from 0 to 4
[   67.073386][ T8436] NILFS (loop0): unable to read secondary superblock (blocksize = 1024)
[   67.081917][ T8436] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024)
[   67.092797][ T8436] NILFS (loop0): unable to read secondary superblock (blocksize = 2048)
[   67.101291][ T8436] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 2048)
[   67.111391][ T8436] NILFS (loop0): mounting unchecked fs
[   67.117137][ T8436] NILFS (loop0): I/O error reading segment
[   67.123526][ T8436] NILFS (loop0): error -5 while searching super root
[   72.198760][ T8407] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff888113569100 (size 32):
  comm "syz-executor213", pid 8412, jiffies 4294942411 (age 22.940s)
  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:
    [<ffffffff81472fa6>] kstrdup+0x36/0x70
    [<ffffffff81473033>] kstrdup_const+0x53/0x80
    [<ffffffff8225d122>] kvasprintf_const+0xc2/0x110
    [<ffffffff8232474b>] kobject_set_name_vargs+0x3b/0xe0
    [<ffffffff82324bdd>] kobject_init_and_add+0x6d/0xc0
    [<ffffffff81d23298>] nilfs_sysfs_create_device_group+0x98/0x3a0
    [<ffffffff81d0bfd0>] init_nilfs+0x520/0x680
    [<ffffffff81cf973b>] nilfs_mount+0x51b/0x890
    [<ffffffff815c128b>] legacy_get_tree+0x2b/0x90
    [<ffffffff8155e468>] vfs_get_tree+0x28/0x100
    [<ffffffff8159ebee>] path_mount+0xc3e/0x1110
    [<ffffffff8159f80e>] __x64_sys_mount+0x18e/0x1d0
    [<ffffffff843540da>] do_syscall_64+0x3a/0xb0
    [<ffffffff84400068>] entry_SYSCALL_64_after_hwframe+0x44/0xae