Warning: Permanently added '10.128.10.55' (ECDSA) to the list of known hosts.
syzkaller login: [   36.197989] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[   36.205152] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[   36.219272] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[   36.226432] ------------[ cut here ]------------
[   36.231194] WARNING: CPU: 0 PID: 7978 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x26
[   36.234756] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[   36.239764] Kernel panic - not syncing: panic_on_warn set ...
[   36.239764] 
[   36.239772] CPU: 0 PID: 7978 Comm: syz-executor137 Not tainted 4.14.302-syzkaller #0
[   36.239777] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[   36.239780] Call Trace:
[   36.239792]  dump_stack+0x1b2/0x281
[   36.239803]  panic+0x1f9/0x42d
[   36.251028] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[   36.253780]  ? add_taint.cold+0x16/0x16
[   36.253792]  ? sysfs_warn_dup.cold+0x17/0x26
[   36.253801]  ? sysfs_warn_dup.cold+0x17/0x26
[   36.253809]  __warn.cold+0x20/0x44
[   36.301865] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[   36.303206]  ? ist_end_non_atomic+0x10/0x10
[   36.303216]  ? sysfs_warn_dup.cold+0x17/0x26
[   36.303224]  report_bug+0x208/0x250
[   36.303234]  do_error_trap+0x195/0x2d0
[   36.325028] gfs2: fsid=syz:syz: Now mounting FS...
[   36.326026]  ? math_error+0x2d0/0x2d0
[   36.326035]  ? ___preempt_schedule+0x16/0x18
[   36.326046]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   36.326058]  invalid_op+0x1b/0x40
[   36.347346] RIP: 0010:sysfs_warn_dup.cold+0x17/0x26
[   36.352334] RSP: 0018:ffff88809e10f728 EFLAGS: 00010282
[   36.357680] RAX: 000000000000003a RBX: ffff8880980e1a10 RCX: 0000000000000000
[   36.364929] RDX: 0000000000000000 RSI: ffffffff878bd020 RDI: ffffed1013c21edb
[   36.372174] RBP: ffff8880af158c40 R08: 000000000000003a R09: 0000000000000000
[   36.379418] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88823929f380
[   36.386665] R13: ffff8880b55d1780 R14: ffff8880980e1a18 R15: ffff888096add9d8
[   36.393925]  ? sysfs_warn_dup.cold+0x17/0x26
[   36.398309]  sysfs_create_dir_ns+0x16f/0x1d0
[   36.402696]  kobject_add_internal+0x28b/0x930
[   36.407168]  kobject_init_and_add+0xde/0x120
[   36.411552]  ? kobject_create_and_add+0x200/0x200
[   36.416370]  ? vsnprintf+0x260/0x1340
[   36.420154]  gfs2_sys_fs_add+0x184/0x3f0
[   36.424196]  ? recover_store+0x100/0x100
[   36.428235]  ? snprintf+0xa5/0xd0
[   36.431667]  ? strscpy+0x94/0x280
[   36.435095]  fill_super+0x118b/0x2310
[   36.438873]  ? vsnprintf+0x260/0x1340
[   36.442649]  ? gfs2_online_uevent+0x1b0/0x1b0
[   36.447129]  ? pointer+0x9e0/0x9e0
[   36.450648]  ? snprintf+0xa5/0xd0
[   36.454078]  ? vsprintf+0x30/0x30
[   36.457508]  ? gfs2_open+0x160/0x160
[   36.461201]  ? set_blocksize+0x125/0x380
[   36.465241]  gfs2_mount+0x439/0x510
[   36.468843]  ? fill_super+0x2310/0x2310
[   36.472805]  ? alloc_pages_current+0x15d/0x260
[   36.477366]  ? __lockdep_init_map+0x100/0x560
[   36.481837]  mount_fs+0x92/0x2a0
[   36.485183]  vfs_kern_mount.part.0+0x5b/0x470
[   36.489657]  do_mount+0xe65/0x2a30
[   36.493173]  ? do_raw_spin_unlock+0x164/0x220
[   36.497643]  ? copy_mount_string+0x40/0x40
[   36.501863]  ? rcu_read_lock_sched_held+0x16c/0x1d0
[   36.506856]  ? copy_mnt_ns+0xa30/0xa30
[   36.510719]  ? copy_mount_options+0x1fa/0x2f0
[   36.515196]  ? copy_mnt_ns+0xa30/0xa30
[   36.519059]  SyS_mount+0xa8/0x120
[   36.522491]  ? copy_mnt_ns+0xa30/0xa30
[   36.526355]  do_syscall_64+0x1d5/0x640
[   36.530227]  entry_SYSCALL_64_after_hwframe+0x5e/0xd3
[   36.535391] RIP: 0033:0x7fd79d8516da
[   36.539077] RSP: 002b:00007fff56f1e688 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5
[   36.546758] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fd79d8516da
[   36.554002] RDX: 0000000020037f40 RSI: 0000000020037f80 RDI: 00007fff56f1e6a0
[   36.561248] RBP: 00007fff56f1e6a0 R08: 00007fff56f1e6e0 R09: 0000000000000002
[   36.568493] R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000004
[   36.575740] R13: 0000555555adc2c0 R14: 0000000000000000 R15: 00007fff56f1e6e0
[   36.583194] Kernel Offset: disabled
[   36.586839] Rebooting in 86400 seconds..