Warning: Permanently added '10.128.15.215' (ECDSA) to the list of known hosts.
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syzkaller login: [  520.488801] sysfs: cannot create duplicate filename '/devices/virtual/bdi/7:0-fuseblk'
[  520.504181] ------------[ cut here ]------------
[  520.508953] WARNING: CPU: 1 PID: 8063 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x26
[  520.517168] Kernel panic - not syncing: panic_on_warn set ...
[  520.517168] 
[  520.524523] CPU: 1 PID: 8063 Comm: syz-executor318 Not tainted 4.14.302-syzkaller #0
[  520.532389] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[  520.541729] Call Trace:
[  520.544311]  dump_stack+0x1b2/0x281
[  520.547934]  panic+0x1f9/0x42d
[  520.551118]  ? add_taint.cold+0x16/0x16
[  520.555088]  ? sysfs_warn_dup.cold+0x17/0x26
[  520.559490]  ? sysfs_warn_dup.cold+0x17/0x26
[  520.563889]  __warn.cold+0x20/0x44
[  520.567430]  ? ist_end_non_atomic+0x10/0x10
[  520.571740]  ? sysfs_warn_dup.cold+0x17/0x26
[  520.576142]  report_bug+0x208/0x250
[  520.579765]  do_error_trap+0x195/0x2d0
[  520.583640]  ? math_error+0x2d0/0x2d0
[  520.587430]  ? ___preempt_schedule+0x16/0x18
[  520.591837]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  520.596675]  invalid_op+0x1b/0x40
[  520.600121] RIP: 0010:sysfs_warn_dup.cold+0x17/0x26
[  520.605125] RSP: 0018:ffff8880952577a0 EFLAGS: 00010282
[  520.610478] RAX: 000000000000004a RBX: ffff888096673590 RCX: 0000000000000000
[  520.617739] RDX: 0000000000000000 RSI: ffffffff878bd020 RDI: ffffed1012a4aeea
[  520.624989] RBP: ffff888096676180 R08: 000000000000004a R09: 0000000000000000
[  520.632230] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880af1a5ee0
[  520.639488] R13: ffff8880ab2b7bc0 R14: ffff888096673598 R15: ffff8880afd78cd8
[  520.646749]  sysfs_create_dir_ns+0x16f/0x1d0
[  520.651140]  kobject_add_internal+0x28b/0x930
[  520.655615]  kobject_add+0x11f/0x180
[  520.659303]  ? kset_create_and_add+0x190/0x190
[  520.663862]  device_add+0x33f/0x15c0
[  520.667557]  ? rcu_lockdep_current_cpu_online+0xed/0x140
[  520.672991]  ? kfree_const+0x33/0x40
[  520.676681]  ? device_is_dependent+0x2a0/0x2a0
[  520.681237]  ? kfree+0x1f0/0x250
[  520.684587]  device_create_groups_vargs+0x1dc/0x250
[  520.689588]  device_create_vargs+0x3a/0x50
[  520.693807]  bdi_register_va.part.0+0x35/0x650
[  520.698366]  bdi_register_va+0x63/0x80
[  520.702231]  super_setup_bdi_name+0x123/0x220
[  520.706701]  ? kill_block_super+0xe0/0xe0
[  520.710823]  ? do_raw_spin_unlock+0x164/0x220
[  520.715294]  fuse_fill_super+0x937/0x15c0
[  520.719426]  ? fuse_get_root_inode+0xc0/0xc0
[  520.723827]  ? lock_downgrade+0x740/0x740
[  520.727958]  ? set_blocksize+0x125/0x380
[  520.731995]  mount_bdev+0x2b3/0x360
[  520.735595]  ? fuse_get_root_inode+0xc0/0xc0
[  520.739976]  mount_fs+0x92/0x2a0
[  520.743320]  vfs_kern_mount.part.0+0x5b/0x470
[  520.747788]  do_mount+0xe65/0x2a30
[  520.751310]  ? retint_kernel+0x2d/0x2d
[  520.755177]  ? copy_mount_string+0x40/0x40
[  520.759388]  ? copy_mount_options+0x188/0x2f0
[  520.763855]  ? copy_mount_options+0x1fa/0x2f0
[  520.768323]  ? copy_mnt_ns+0xa30/0xa30
[  520.772186]  SyS_mount+0xa8/0x120
[  520.775618]  ? copy_mnt_ns+0xa30/0xa30
[  520.779479]  do_syscall_64+0x1d5/0x640
[  520.783341]  entry_SYSCALL_64_after_hwframe+0x5e/0xd3
[  520.788503] RIP: 0033:0x7f65d8a01129
[  520.792209] RSP: 002b:00007ffea569e1b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[  520.799890] RAX: ffffffffffffffda RBX: 00007ffea569e1f0 RCX: 00007f65d8a01129
[  520.807131] RDX: 0000000020000140 RSI: 0000000020000100 RDI: 0000000020000040
[  520.814372] RBP: 0000000000000000 R08: 00000000200023c0 R09: 0000000000000000
[  520.821613] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000f4240
[  520.828856] R13: 0000000000000000 R14: 00007ffea569e1dc R15: 00007ffea569e1e0
[  520.836472] Kernel Offset: disabled
[  520.840130] Rebooting in 86400 seconds..