Warning: Permanently added '10.128.0.20' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 28.413582] INFO: trying to register non-static key. [ 28.415440] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 28.418692] the code is fine but needs lockdep annotation. [ 28.434054] turning off the locking correctness validator. [ 28.439651] CPU: 0 PID: 7962 Comm: syz-executor428 Not tainted 4.14.295-syzkaller #0 [ 28.447503] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 28.456835] Call Trace: [ 28.459413] dump_stack+0x1b2/0x281 [ 28.463035] register_lock_class+0x389/0x1180 [ 28.467518] ? trace_hardirqs_on+0x10/0x10 [ 28.471724] ? static_obj+0x50/0x50 [ 28.475325] __lock_acquire+0x167/0x3f20 [ 28.479361] ? mark_held_locks+0xa6/0xf0 [ 28.483397] ? _raw_spin_unlock_irq+0x24/0x80 [ 28.487864] ? trace_hardirqs_on+0x10/0x10 [ 28.492069] ? trace_hardirqs_on+0x10/0x10 [ 28.496273] ? _raw_spin_unlock_irq+0x5a/0x80 [ 28.500740] ? finish_task_switch+0x178/0x610 [ 28.505203] ? finish_task_switch+0x14d/0x610 [ 28.509669] ? __schedule+0x893/0x1de0 [ 28.513528] lock_acquire+0x170/0x3f0 [ 28.517304] ? nilfs_bmap_lookup_at_level+0x6b/0x380 [ 28.522378] down_read+0x36/0x80 [ 28.525714] ? nilfs_bmap_lookup_at_level+0x6b/0x380 [ 28.530788] nilfs_bmap_lookup_at_level+0x6b/0x380 [ 28.535687] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 28.539981] nilfs_mdt_submit_block.constprop.0+0x152/0x970 [ 28.545661] ? nilfs_mdt_write_page+0x250/0x250 [ 28.550301] nilfs_mdt_read_block+0x7c/0x320 [ 28.554681] ? nilfs_mdt_submit_block.constprop.0+0x970/0x970 [ 28.560534] ? finish_task_switch+0x178/0x610 [ 28.565006] ? finish_task_switch+0x14d/0x610 [ 28.569472] nilfs_mdt_get_block+0xc7/0xb90 [ 28.573764] ? nilfs_mdt_read_block+0x320/0x320 [ 28.578403] ? lock_downgrade+0x740/0x740 [ 28.582525] nilfs_palloc_get_block+0xb2/0x250 [ 28.587080] nilfs_palloc_get_entry_block+0x17d/0x230 [ 28.592243] nilfs_ifile_get_inode_block+0xb4/0x150 [ 28.597239] nilfs_iget+0x1c2/0x810 [ 28.600837] ? nilfs_iget_locked+0xb0/0xb0 [ 28.605048] ? nilfs_attach_log_writer+0x64d/0x9d0 [ 28.609949] ? nilfs_detach_log_writer+0x980/0x980 [ 28.614853] ? wait_woken+0x230/0x230 [ 28.618638] nilfs_get_root_dentry+0x24/0x1f0 [ 28.623224] nilfs_mount+0x984/0xd00 [ 28.626916] ? nilfs_attach_checkpoint+0x420/0x420 [ 28.631944] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 28.637377] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 28.642370] ? alloc_pages_current+0x15d/0x260 [ 28.646927] ? __lockdep_init_map+0x100/0x560 [ 28.651400] mount_fs+0x92/0x2a0 [ 28.654744] vfs_kern_mount.part.0+0x5b/0x470 [ 28.659216] do_mount+0xe65/0x2a30 [ 28.662732] ? retint_kernel+0x2d/0x2d [ 28.666595] ? copy_mount_string+0x40/0x40 [ 28.670806] ? memset+0x20/0x40 [ 28.674060] ? copy_mount_options+0x1fa/0x2f0 [ 28.678530] ? copy_mnt_ns+0xa30/0xa30 [ 28.682389] SyS_mount+0xa8/0x120 [ 28.685815] ? copy_mnt_ns+0xa30/0xa30 [ 28.689675] do_syscall_64+0x1d5/0x640 [ 28.693537] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 28.698701] RIP: 0033:0x7fb89763462a [ 28.702386] RSP: 002b:00007fff914e44d8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 28.710067] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fb89763462a [ 28.717314] RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007fff914e44f0 [ 28.724557] RBP: 00007fff914e44f0 R08: 00007fff914e4530 R09: 00005555569982c0 [ 28.731799] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004 [ 28.739043] R13: 00007fff914e4530 R14: 000000000000003a R15: 0000000020000770 [ 28.746650] kasan: CONFIG_KASAN_INLINE enabled [ 28.751221] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 28.758664] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 28.764885] Modules linked in: [ 28.768069] CPU: 0 PID: 7962 Comm: syz-executor428 Not tainted 4.14.295-syzkaller #0 [ 28.775923] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 28.785253] task: ffff888093378240 task.stack: ffff888096308000 [ 28.791312] RIP: 0010:nilfs_bmap_lookup_at_level+0xa5/0x380 [ 28.796997] RSP: 0018:ffff88809630f750 EFLAGS: 00010246 [ 28.802341] RAX: 0000000000000000 RBX: ffff88808de10098 RCX: 0000000000000000 [ 28.809585] RDX: dffffc0000000000 RSI: 1ffff11012c61e93 RDI: ffff88808de10158 [ 28.816831] RBP: ffff88809630f818 R08: 0000000000000001 R09: 0000000000000000 [ 28.824083] R10: 0000000000000001 R11: ffff888093378240 R12: 0000000000000002 [ 28.831332] R13: 1ffff11012c61eeb R14: ffff88808de100d0 R15: 0000000000000001 [ 28.838582] FS: 0000555556998300(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 [ 28.846786] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.852643] CR2: 00007fff914e5000 CR3: 00000000b3a12000 CR4: 00000000003406f0 [ 28.859892] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 28.867136] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 28.874379] Call Trace: [ 28.876945] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 28.881241] nilfs_mdt_submit_block.constprop.0+0x152/0x970 [ 28.886924] ? nilfs_mdt_write_page+0x250/0x250 [ 28.891567] nilfs_mdt_read_block+0x7c/0x320 [ 28.895951] ? nilfs_mdt_submit_block.constprop.0+0x970/0x970 [ 28.901809] ? finish_task_switch+0x178/0x610 [ 28.906275] ? finish_task_switch+0x14d/0x610 [ 28.910744] nilfs_mdt_get_block+0xc7/0xb90 [ 28.915042] ? nilfs_mdt_read_block+0x320/0x320 [ 28.919685] ? lock_downgrade+0x740/0x740 [ 28.923808] nilfs_palloc_get_block+0xb2/0x250 [ 28.928365] nilfs_palloc_get_entry_block+0x17d/0x230 [ 28.933529] nilfs_ifile_get_inode_block+0xb4/0x150 [ 28.938521] nilfs_iget+0x1c2/0x810 [ 28.942126] ? nilfs_iget_locked+0xb0/0xb0 [ 28.946334] ? nilfs_attach_log_writer+0x64d/0x9d0 [ 28.951238] ? nilfs_detach_log_writer+0x980/0x980 [ 28.956143] ? wait_woken+0x230/0x230 [ 28.959917] nilfs_get_root_dentry+0x24/0x1f0 [ 28.964385] nilfs_mount+0x984/0xd00 [ 28.968073] ? nilfs_attach_checkpoint+0x420/0x420 [ 28.972977] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 28.978403] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 28.983392] ? alloc_pages_current+0x15d/0x260 [ 28.987947] ? __lockdep_init_map+0x100/0x560 [ 28.992414] mount_fs+0x92/0x2a0 [ 28.995756] vfs_kern_mount.part.0+0x5b/0x470 [ 29.000224] do_mount+0xe65/0x2a30 [ 29.003739] ? retint_kernel+0x2d/0x2d [ 29.007599] ? copy_mount_string+0x40/0x40 [ 29.011816] ? memset+0x20/0x40 [ 29.015075] ? copy_mount_options+0x1fa/0x2f0 [ 29.019546] ? copy_mnt_ns+0xa30/0xa30 [ 29.023406] SyS_mount+0xa8/0x120 [ 29.026834] ? copy_mnt_ns+0xa30/0xa30 [ 29.030694] do_syscall_64+0x1d5/0x640 [ 29.034555] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 29.039715] RIP: 0033:0x7fb89763462a [ 29.043399] RSP: 002b:00007fff914e44d8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 29.051079] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fb89763462a [ 29.058322] RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007fff914e44f0 [ 29.065564] RBP: 00007fff914e44f0 R08: 00007fff914e4530 R09: 00005555569982c0 [ 29.072806] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004 [ 29.080050] R13: 00007fff914e4530 R14: 000000000000003a R15: 0000000020000770 [ 29.087295] Code: ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 69 02 00 00 48 8b 83 c0 00 00 00 48 ba 00 00 00 00 00 fc ff df 48 89 c1 48 c1 e9 03 <80> 3c 11 00 0f 85 32 02 00 00 4c 89 e6 48 89 e9 44 89 fa 48 89 [ 29.106355] RIP: nilfs_bmap_lookup_at_level+0xa5/0x380 RSP: ffff88809630f750 [ 29.114401] ---[ end trace a7123bc6ad2e4fe1 ]--- [ 29.119297] Kernel panic - not syncing: Fatal exception [ 29.124796] Kernel Offset: disabled [ 29.128404] Rebooting in 86400 seconds..