[ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.23' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 27.567976] INFO: trying to register non-static key. [ 27.573087] the code is fine but needs lockdep annotation. [ 27.577179] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 27.578683] turning off the locking correctness validator. [ 27.594105] CPU: 1 PID: 7961 Comm: syz-executor233 Not tainted 4.14.295-syzkaller #0 [ 27.601966] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 27.611292] Call Trace: [ 27.613859] dump_stack+0x1b2/0x281 [ 27.617462] register_lock_class+0x389/0x1180 [ 27.621934] ? static_obj+0x50/0x50 [ 27.625537] ? add_lock_to_list.constprop.0+0x17d/0x330 [ 27.630878] ? save_trace+0xd6/0x290 [ 27.634581] __lock_acquire+0x167/0x3f20 [ 27.638626] ? mem_cgroup_commit_charge+0x17c/0x3b0 [ 27.643621] ? trace_hardirqs_on+0x10/0x10 [ 27.647838] ? trace_hardirqs_on+0x10/0x10 [ 27.652049] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 27.657477] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 27.662472] ? alloc_buffer_head+0x20/0x110 [ 27.666764] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 27.672189] lock_acquire+0x170/0x3f0 [ 27.675964] ? nilfs_bmap_lookup_at_level+0x6b/0x380 [ 27.681039] down_read+0x36/0x80 [ 27.684380] ? nilfs_bmap_lookup_at_level+0x6b/0x380 [ 27.689455] nilfs_bmap_lookup_at_level+0x6b/0x380 [ 27.694355] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 27.698756] nilfs_mdt_submit_block.constprop.0+0x152/0x970 [ 27.704450] ? nilfs_mdt_write_page+0x250/0x250 [ 27.709099] nilfs_mdt_read_block+0x7c/0x320 [ 27.713487] ? nilfs_mdt_submit_block.constprop.0+0x970/0x970 [ 27.719343] ? finish_task_switch+0x178/0x610 [ 27.723808] ? finish_task_switch+0x14d/0x610 [ 27.728277] nilfs_mdt_get_block+0xc7/0xb90 [ 27.732588] ? nilfs_mdt_read_block+0x320/0x320 [ 27.737229] ? lock_downgrade+0x740/0x740 [ 27.741349] nilfs_palloc_get_block+0xb2/0x250 [ 27.745907] nilfs_palloc_get_entry_block+0x17d/0x230 [ 27.751067] nilfs_ifile_get_inode_block+0xb4/0x150 [ 27.756061] nilfs_iget+0x1c2/0x810 [ 27.759661] ? nilfs_iget_locked+0xb0/0xb0 [ 27.763866] ? nilfs_attach_log_writer+0x64d/0x9d0 [ 27.768766] ? nilfs_detach_log_writer+0x980/0x980 [ 27.773668] ? wait_woken+0x230/0x230 [ 27.777440] nilfs_get_root_dentry+0x24/0x1f0 [ 27.781907] nilfs_mount+0x984/0xd00 [ 27.785594] ? nilfs_attach_checkpoint+0x420/0x420 [ 27.790495] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 27.795918] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 27.800912] ? alloc_pages_current+0x15d/0x260 [ 27.805462] ? __lockdep_init_map+0x100/0x560 [ 27.809932] mount_fs+0x92/0x2a0 [ 27.813274] vfs_kern_mount.part.0+0x5b/0x470 [ 27.817741] do_mount+0xe65/0x2a30 [ 27.821252] ? copy_mount_string+0x40/0x40 [ 27.825457] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 27.830455] ? copy_mnt_ns+0xa30/0xa30 [ 27.834319] ? copy_mount_options+0x1fa/0x2f0 [ 27.838788] ? copy_mnt_ns+0xa30/0xa30 [ 27.842651] SyS_mount+0xa8/0x120 [ 27.846084] ? copy_mnt_ns+0xa30/0xa30 [ 27.849952] do_syscall_64+0x1d5/0x640 [ 27.853827] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 27.858996] RIP: 0033:0x7f439ff0a06a [ 27.862680] RSP: 002b:00007ffe09e4c168 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 27.870362] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f439ff0a06a [ 27.877604] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffe09e4c180 [ 27.884846] RBP: 00007ffe09e4c180 R08: 00007ffe09e4c1c0 R09: 00005555562722c0 [ 27.892094] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004 [ 27.899336] R13: 00007ffe09e4c1c0 R14: 000000000000005c R15: 0000000020000aa0 [ 27.906702] kasan: CONFIG_KASAN_INLINE enabled [ 27.911525] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 27.918926] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 27.925148] Modules linked in: [ 27.928673] CPU: 1 PID: 7961 Comm: syz-executor233 Not tainted 4.14.295-syzkaller #0 [ 27.936522] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 27.945848] task: ffff888099a34680 task.stack: ffff888096950000 [ 27.951881] RIP: 0010:nilfs_bmap_lookup_at_level+0xa5/0x380 [ 27.957687] RSP: 0018:ffff888096957750 EFLAGS: 00010246 [ 27.963035] RAX: 0000000000000000 RBX: ffff88808debe098 RCX: 0000000000000000 [ 27.970285] RDX: dffffc0000000000 RSI: 1ffff11012d2ae93 RDI: ffff88808debe158 [ 27.977536] RBP: ffff888096957818 R08: 0000000000000001 R09: 0000000000000000 [ 27.984790] R10: 0000000000000001 R11: ffff888099a34680 R12: 0000000000000002 [ 27.992038] R13: 1ffff11012d2aeeb R14: ffff88808debe0d0 R15: 0000000000000001 [ 27.999286] FS: 0000555556272300(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 [ 28.007487] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.013338] CR2: 00007f439fee0e80 CR3: 00000000b4204000 CR4: 00000000003406e0 [ 28.020584] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 28.027833] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 28.035081] Call Trace: [ 28.037648] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 28.041946] nilfs_mdt_submit_block.constprop.0+0x152/0x970 [ 28.047633] ? nilfs_mdt_write_page+0x250/0x250 [ 28.052278] nilfs_mdt_read_block+0x7c/0x320 [ 28.056660] ? nilfs_mdt_submit_block.constprop.0+0x970/0x970 [ 28.062516] ? finish_task_switch+0x178/0x610 [ 28.066984] ? finish_task_switch+0x14d/0x610 [ 28.071451] nilfs_mdt_get_block+0xc7/0xb90 [ 28.075748] ? nilfs_mdt_read_block+0x320/0x320 [ 28.080391] ? lock_downgrade+0x740/0x740 [ 28.084513] nilfs_palloc_get_block+0xb2/0x250 [ 28.089080] nilfs_palloc_get_entry_block+0x17d/0x230 [ 28.094246] nilfs_ifile_get_inode_block+0xb4/0x150 [ 28.099262] nilfs_iget+0x1c2/0x810 [ 28.102860] ? nilfs_iget_locked+0xb0/0xb0 [ 28.107067] ? nilfs_attach_log_writer+0x64d/0x9d0 [ 28.111967] ? nilfs_detach_log_writer+0x980/0x980 [ 28.116873] ? wait_woken+0x230/0x230 [ 28.120647] nilfs_get_root_dentry+0x24/0x1f0 [ 28.125116] nilfs_mount+0x984/0xd00 [ 28.128803] ? nilfs_attach_checkpoint+0x420/0x420 [ 28.133792] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 28.139217] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 28.144205] ? alloc_pages_current+0x15d/0x260 [ 28.148756] ? __lockdep_init_map+0x100/0x560 [ 28.153222] mount_fs+0x92/0x2a0 [ 28.156560] vfs_kern_mount.part.0+0x5b/0x470 [ 28.161030] do_mount+0xe65/0x2a30 [ 28.164544] ? copy_mount_string+0x40/0x40 [ 28.168750] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 28.173738] ? copy_mnt_ns+0xa30/0xa30 [ 28.177600] ? copy_mount_options+0x1fa/0x2f0 [ 28.182090] ? copy_mnt_ns+0xa30/0xa30 [ 28.185950] SyS_mount+0xa8/0x120 [ 28.189377] ? copy_mnt_ns+0xa30/0xa30 [ 28.193241] do_syscall_64+0x1d5/0x640 [ 28.197105] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 28.202269] RIP: 0033:0x7f439ff0a06a [ 28.205952] RSP: 002b:00007ffe09e4c168 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 28.213641] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f439ff0a06a [ 28.220894] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffe09e4c180 [ 28.228145] RBP: 00007ffe09e4c180 R08: 00007ffe09e4c1c0 R09: 00005555562722c0 [ 28.235393] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004 [ 28.242644] R13: 00007ffe09e4c1c0 R14: 000000000000005c R15: 0000000020000aa0 [ 28.249892] 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 [ 28.268963] RIP: nilfs_bmap_lookup_at_level+0xa5/0x380 RSP: ffff888096957750 [ 28.276244] ---[ end trace 6b0fb6bc62974a2d ]--- [ 28.281039] Kernel panic - not syncing: Fatal exception [ 28.286558] Kernel Offset: disabled [ 28.290168] Rebooting in 86400 seconds..