[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.239' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 34.680670] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 34.680983] INFO: trying to register non-static key. [ 34.695571] The code is fine but needs lockdep annotation, or maybe [ 34.701959] you didn't initialize this object before use? [ 34.707469] turning off the locking correctness validator. [ 34.713071] CPU: 1 PID: 8111 Comm: syz-executor354 Not tainted 4.19.211-syzkaller #0 [ 34.720929] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 34.730256] Call Trace: [ 34.732824] dump_stack+0x1fc/0x2ef [ 34.736441] register_lock_class+0xe82/0x11c0 [ 34.740919] ? static_obj+0x50/0x50 [ 34.744524] __lock_acquire+0x17d/0x3ff0 [ 34.748564] ? __lock_acquire+0x6de/0x3ff0 [ 34.752779] ? mark_held_locks+0xf0/0xf0 [ 34.756817] ? mark_held_locks+0xf0/0xf0 [ 34.760854] ? lock_downgrade+0x720/0x720 [ 34.764978] ? lock_acquire+0x170/0x3c0 [ 34.768940] ? get_mem_cgroup_from_page+0x7a/0x3b0 [ 34.773848] ? check_preemption_disabled+0x41/0x280 [ 34.778842] ? check_preemption_disabled+0x41/0x280 [ 34.783838] ? alloc_buffer_head+0x20/0x130 [ 34.788139] lock_acquire+0x170/0x3c0 [ 34.791918] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 34.796998] down_read+0x36/0x80 [ 34.800343] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 34.805431] nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 34.810340] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 34.814654] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 34.820356] ? save_trace+0xd6/0x290 [ 34.824056] ? nilfs_mdt_write_page+0x280/0x280 [ 34.828704] nilfs_mdt_read_block+0x96/0x3e0 [ 34.833093] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 34.838954] ? mark_held_locks+0xf0/0xf0 [ 34.842994] nilfs_mdt_get_block+0xe6/0xd40 [ 34.847296] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 34.851942] ? lock_downgrade+0x720/0x720 [ 34.856070] ? lock_acquire+0x170/0x3c0 [ 34.860028] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 34.864763] nilfs_palloc_get_block+0xc4/0x2b0 [ 34.869325] nilfs_palloc_get_entry_block+0x17b/0x230 [ 34.874495] ? nilfs_iget+0x1cf/0x860 [ 34.878272] nilfs_ifile_get_inode_block+0xbf/0x170 [ 34.883266] nilfs_iget+0x204/0x860 [ 34.886872] ? nilfs_iget_locked+0xd0/0xd0 [ 34.891089] ? nilfs_attach_log_writer+0x68b/0xa30 [ 34.895999] ? wait_woken+0x250/0x250 [ 34.899803] nilfs_get_root_dentry+0x26/0x250 [ 34.905754] nilfs_mount+0xac8/0xe70 [ 34.909534] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 34.914445] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 34.919441] ? pcpu_alloc+0xc9/0x1190 [ 34.923222] ? alloc_pages_current+0x19b/0x2a0 [ 34.927784] mount_fs+0xa3/0x310 [ 34.931131] vfs_kern_mount.part.0+0x68/0x470 [ 34.935607] do_mount+0x115c/0x2f50 [ 34.939217] ? lock_acquire+0x170/0x3c0 [ 34.943205] ? check_preemption_disabled+0x41/0x280 [ 34.948207] ? copy_mount_string+0x40/0x40 [ 34.952422] ? copy_mount_options+0x59/0x380 [ 34.956808] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 34.961804] ? kmem_cache_alloc_trace+0x323/0x380 [ 34.966624] ? copy_mount_options+0x26f/0x380 [ 34.971098] ksys_mount+0xcf/0x130 [ 34.974620] __x64_sys_mount+0xba/0x150 [ 34.978574] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 34.983132] do_syscall_64+0xf9/0x620 [ 34.986917] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 34.992084] RIP: 0033:0x7f59d19f57ca [ 34.995776] Code: 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 35.014663] RSP: 002b:00007ffdb4ce7a78 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 35.022353] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f59d19f57ca [ 35.029602] RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007ffdb4ce7a90 [ 35.036850] RBP: 00007ffdb4ce7a90 R08: 00007ffdb4ce7ad0 R09: 00005555568ed2c0 [ 35.044098] R10: 0000000000000008 R11: 0000000000000286 R12: 0000000000000004 [ 35.051351] R13: 00007ffdb4ce7ad0 R14: 000000000000003b R15: 0000000020000788 [ 35.058925] kasan: CONFIG_KASAN_INLINE enabled [ 35.063503] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 35.070955] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 35.077192] CPU: 1 PID: 8111 Comm: syz-executor354 Not tainted 4.19.211-syzkaller #0 [ 35.085062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 35.094412] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 35.100110] Code: df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 95 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 7d 02 00 00 4c 89 e6 48 89 e9 44 89 fa 48 89 df [ 35.118988] RSP: 0018:ffff888091017650 EFLAGS: 00010246 [ 35.124327] RAX: 0000000000000000 RBX: ffff88808dfdc098 RCX: 0000000000000000 [ 35.131574] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808dfdc158 [ 35.138819] RBP: ffff888091017738 R08: 0000000000000001 R09: 0000000000000000 [ 35.146067] R10: 0000000000000005 R11: ffffffff8c66505b R12: 0000000000000002 [ 35.153315] R13: 1ffff11012202ecb R14: ffff88808dfdc0d0 R15: 0000000000000001 [ 35.160565] FS: 00005555568ed300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 35.168767] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.174627] CR2: 000055ad5c10f1f0 CR3: 0000000097e43000 CR4: 00000000003406e0 [ 35.181877] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.189125] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.196369] Call Trace: [ 35.198939] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 35.203242] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 35.208931] ? save_trace+0xd6/0x290 [ 35.212625] ? nilfs_mdt_write_page+0x280/0x280 [ 35.217274] nilfs_mdt_read_block+0x96/0x3e0 [ 35.221663] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 35.227525] ? mark_held_locks+0xf0/0xf0 [ 35.231565] nilfs_mdt_get_block+0xe6/0xd40 [ 35.235880] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 35.240525] ? lock_downgrade+0x720/0x720 [ 35.244650] ? lock_acquire+0x170/0x3c0 [ 35.248601] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 35.253335] nilfs_palloc_get_block+0xc4/0x2b0 [ 35.257898] nilfs_palloc_get_entry_block+0x17b/0x230 [ 35.263067] ? nilfs_iget+0x1cf/0x860 [ 35.266846] nilfs_ifile_get_inode_block+0xbf/0x170 [ 35.271839] nilfs_iget+0x204/0x860 [ 35.275445] ? nilfs_iget_locked+0xd0/0xd0 [ 35.279660] ? nilfs_attach_log_writer+0x68b/0xa30 [ 35.284567] ? wait_woken+0x250/0x250 [ 35.288345] nilfs_get_root_dentry+0x26/0x250 [ 35.292817] nilfs_mount+0xac8/0xe70 [ 35.296511] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 35.301417] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 35.306411] ? pcpu_alloc+0xc9/0x1190 [ 35.310191] ? alloc_pages_current+0x19b/0x2a0 [ 35.314750] mount_fs+0xa3/0x310 [ 35.318100] vfs_kern_mount.part.0+0x68/0x470 [ 35.322590] do_mount+0x115c/0x2f50 [ 35.326219] ? lock_acquire+0x170/0x3c0 [ 35.330177] ? check_preemption_disabled+0x41/0x280 [ 35.335172] ? copy_mount_string+0x40/0x40 [ 35.339384] ? copy_mount_options+0x59/0x380 [ 35.343785] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 35.348780] ? kmem_cache_alloc_trace+0x323/0x380 [ 35.353602] ? copy_mount_options+0x26f/0x380 [ 35.358075] ksys_mount+0xcf/0x130 [ 35.361597] __x64_sys_mount+0xba/0x150 [ 35.365550] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 35.370112] do_syscall_64+0xf9/0x620 [ 35.373894] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.379061] RIP: 0033:0x7f59d19f57ca [ 35.382752] Code: 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 35.401645] RSP: 002b:00007ffdb4ce7a78 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 35.409330] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f59d19f57ca [ 35.416577] RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007ffdb4ce7a90 [ 35.423824] RBP: 00007ffdb4ce7a90 R08: 00007ffdb4ce7ad0 R09: 00005555568ed2c0 [ 35.431075] R10: 0000000000000008 R11: 0000000000000286 R12: 0000000000000004 [ 35.438325] R13: 00007ffdb4ce7ad0 R14: 000000000000003b R15: 0000000020000788 [ 35.445573] Modules linked in: [ 35.448989] ---[ end trace 1590e47c9bcb6ceb ]--- [ 35.453758] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 35.459523] Code: df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 95 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 7d 02 00 00 4c 89 e6 48 89 e9 44 89 fa 48 89 df [ 35.478466] RSP: 0018:ffff888091017650 EFLAGS: 00010246 [ 35.483814] RAX: 0000000000000000 RBX: ffff88808dfdc098 RCX: 0000000000000000 [ 35.491139] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808dfdc158 [ 35.498484] RBP: ffff888091017738 R08: 0000000000000001 R09: 0000000000000000 [ 35.505739] R10: 0000000000000005 R11: ffffffff8c66505b R12: 0000000000000002 [ 35.513027] R13: 1ffff11012202ecb R14: ffff88808dfdc0d0 R15: 0000000000000001 [ 35.520365] FS: 00005555568ed300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 35.528613] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.534491] CR2: 000055ad5c10f1f0 CR3: 0000000097e43000 CR4: 00000000003406e0 [ 35.541794] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.549110] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.556399] Kernel panic - not syncing: Fatal exception [ 35.561932] Kernel Offset: disabled [ 35.565545] Rebooting in 86400 seconds..