[ 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 '10.128.0.84' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 39.646046] INFO: trying to register non-static key. [ 39.651487] The code is fine but needs lockdep annotation, or maybe [ 39.657886] you didn't initialize this object before use? [ 39.658650] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 39.663412] turning off the locking correctness validator. [ 39.663429] CPU: 1 PID: 8131 Comm: syz-executor178 Not tainted 4.19.211-syzkaller #0 [ 39.686656] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 39.695994] Call Trace: [ 39.698569] dump_stack+0x1fc/0x2ef [ 39.702180] register_lock_class+0xe82/0x11c0 [ 39.706656] ? static_obj+0x50/0x50 [ 39.710269] __lock_acquire+0x17d/0x3ff0 [ 39.714325] ? __lock_acquire+0x6de/0x3ff0 [ 39.718542] ? mark_held_locks+0xf0/0xf0 [ 39.722588] ? mark_held_locks+0xf0/0xf0 [ 39.726628] ? lock_downgrade+0x720/0x720 [ 39.730752] ? lock_acquire+0x170/0x3c0 [ 39.734707] ? get_mem_cgroup_from_page+0x7a/0x3b0 [ 39.739614] ? check_preemption_disabled+0x41/0x280 [ 39.744608] ? check_preemption_disabled+0x41/0x280 [ 39.749607] ? alloc_buffer_head+0x20/0x130 [ 39.753909] lock_acquire+0x170/0x3c0 [ 39.757691] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 39.762773] down_read+0x36/0x80 [ 39.766115] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 39.771193] nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 39.776111] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 39.780423] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 39.786117] ? save_trace+0xd6/0x290 [ 39.789817] ? nilfs_mdt_write_page+0x280/0x280 [ 39.794467] nilfs_mdt_read_block+0x96/0x3e0 [ 39.798853] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 39.804715] ? mark_held_locks+0xf0/0xf0 [ 39.808760] nilfs_mdt_get_block+0xe6/0xd40 [ 39.813062] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 39.817712] ? lock_downgrade+0x720/0x720 [ 39.821927] ? lock_acquire+0x170/0x3c0 [ 39.825892] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 39.830632] nilfs_palloc_get_block+0xc4/0x2b0 [ 39.835193] nilfs_palloc_get_entry_block+0x17b/0x230 [ 39.840363] ? nilfs_iget+0x1cf/0x860 [ 39.844142] nilfs_ifile_get_inode_block+0xbf/0x170 [ 39.849136] nilfs_iget+0x204/0x860 [ 39.852830] ? nilfs_iget_locked+0xd0/0xd0 [ 39.857043] ? nilfs_attach_log_writer+0x68b/0xa30 [ 39.861958] ? wait_woken+0x250/0x250 [ 39.865740] ? nilfs_mount+0x9df/0xe70 [ 39.869606] nilfs_get_root_dentry+0x26/0x250 [ 39.874080] nilfs_mount+0xac8/0xe70 [ 39.877771] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 39.882683] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 39.887681] ? pcpu_alloc+0xc9/0x1190 [ 39.891483] ? alloc_pages_current+0x19b/0x2a0 [ 39.896046] mount_fs+0xa3/0x310 [ 39.899394] vfs_kern_mount.part.0+0x68/0x470 [ 39.903871] do_mount+0x115c/0x2f50 [ 39.907480] ? cmp_ex_sort+0xc0/0xc0 [ 39.911180] ? __do_page_fault+0x180/0xd60 [ 39.915394] ? copy_mount_string+0x40/0x40 [ 39.919607] ? copy_mount_options+0x1cd/0x380 [ 39.924082] ? memset+0x20/0x40 [ 39.927339] ? copy_mount_options+0x26f/0x380 [ 39.931813] ksys_mount+0xcf/0x130 [ 39.935348] __x64_sys_mount+0xba/0x150 [ 39.939311] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 39.943870] do_syscall_64+0xf9/0x620 [ 39.947652] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 39.952818] RIP: 0033:0x7ff4725316ea [ 39.956512] 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 [ 39.975392] RSP: 002b:00007ffe8579c898 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 39.983076] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ff4725316ea [ 39.990343] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffe8579c8b0 [ 39.997592] RBP: 00007ffe8579c8b0 R08: 00007ffe8579c8f0 R09: 00005555575142c0 [ 40.004838] R10: 0000000000004000 R11: 0000000000000286 R12: 0000000000000004 [ 40.012084] R13: 00007ffe8579c8f0 R14: 000000000000003b R15: 0000000020000788 [ 40.019813] kasan: CONFIG_KASAN_INLINE enabled [ 40.024383] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 40.031913] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 40.038143] CPU: 1 PID: 8131 Comm: syz-executor178 Not tainted 4.19.211-syzkaller #0 [ 40.046013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 40.055355] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 40.061044] 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 [ 40.079923] RSP: 0018:ffff8880926cf650 EFLAGS: 00010246 [ 40.085263] RAX: 0000000000000000 RBX: ffff88808dbf8098 RCX: 0000000000000000 [ 40.092511] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808dbf8158 [ 40.099777] RBP: ffff8880926cf738 R08: 0000000000000001 R09: 0000000000000000 [ 40.107027] R10: 0000000000000005 R11: ffffffff8c66505b R12: 0000000000000002 [ 40.114281] R13: 1ffff110124d9ecb R14: ffff88808dbf80d0 R15: 0000000000000001 [ 40.121547] FS: 0000555557514300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 40.129752] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 40.135614] CR2: 00007ffc6a76da58 CR3: 00000000a44c8000 CR4: 00000000003406e0 [ 40.142864] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 40.150201] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 40.157447] Call Trace: [ 40.160017] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 40.164322] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 40.170014] ? save_trace+0xd6/0x290 [ 40.173706] ? nilfs_mdt_write_page+0x280/0x280 [ 40.178356] nilfs_mdt_read_block+0x96/0x3e0 [ 40.182748] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 40.188613] ? mark_held_locks+0xf0/0xf0 [ 40.192655] nilfs_mdt_get_block+0xe6/0xd40 [ 40.196958] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 40.201609] ? lock_downgrade+0x720/0x720 [ 40.205773] ? lock_acquire+0x170/0x3c0 [ 40.209730] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 40.214465] nilfs_palloc_get_block+0xc4/0x2b0 [ 40.219031] nilfs_palloc_get_entry_block+0x17b/0x230 [ 40.224199] ? nilfs_iget+0x1cf/0x860 [ 40.227978] nilfs_ifile_get_inode_block+0xbf/0x170 [ 40.232979] nilfs_iget+0x204/0x860 [ 40.236588] ? nilfs_iget_locked+0xd0/0xd0 [ 40.240801] ? nilfs_attach_log_writer+0x68b/0xa30 [ 40.245719] ? wait_woken+0x250/0x250 [ 40.249518] ? nilfs_mount+0x9df/0xe70 [ 40.253392] nilfs_get_root_dentry+0x26/0x250 [ 40.257876] nilfs_mount+0xac8/0xe70 [ 40.261575] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 40.266501] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 40.271512] ? pcpu_alloc+0xc9/0x1190 [ 40.275300] ? alloc_pages_current+0x19b/0x2a0 [ 40.279874] mount_fs+0xa3/0x310 [ 40.283230] vfs_kern_mount.part.0+0x68/0x470 [ 40.287711] do_mount+0x115c/0x2f50 [ 40.291325] ? cmp_ex_sort+0xc0/0xc0 [ 40.295024] ? __do_page_fault+0x180/0xd60 [ 40.299239] ? copy_mount_string+0x40/0x40 [ 40.303452] ? copy_mount_options+0x1cd/0x380 [ 40.307923] ? memset+0x20/0x40 [ 40.311182] ? copy_mount_options+0x26f/0x380 [ 40.315655] ksys_mount+0xcf/0x130 [ 40.319186] __x64_sys_mount+0xba/0x150 [ 40.323160] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 40.327735] do_syscall_64+0xf9/0x620 [ 40.331528] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 40.336706] RIP: 0033:0x7ff4725316ea [ 40.340413] 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 [ 40.359301] RSP: 002b:00007ffe8579c898 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 40.367011] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ff4725316ea [ 40.374261] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffe8579c8b0 [ 40.381508] RBP: 00007ffe8579c8b0 R08: 00007ffe8579c8f0 R09: 00005555575142c0 [ 40.388756] R10: 0000000000004000 R11: 0000000000000286 R12: 0000000000000004 [ 40.396001] R13: 00007ffe8579c8f0 R14: 000000000000003b R15: 0000000020000788 [ 40.403261] Modules linked in: [ 40.410577] ---[ end trace 1b1d61b9496b4866 ]--- [ 40.415374] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 40.421743] 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 [ 40.441243] RSP: 0018:ffff8880926cf650 EFLAGS: 00010246 [ 40.446742] RAX: 0000000000000000 RBX: ffff88808dbf8098 RCX: 0000000000000000 [ 40.454005] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808dbf8158 [ 40.461353] RBP: ffff8880926cf738 R08: 0000000000000001 R09: 0000000000000000 [ 40.468670] R10: 0000000000000005 R11: ffffffff8c66505b R12: 0000000000000002 [ 40.475987] R13: 1ffff110124d9ecb R14: ffff88808dbf80d0 R15: 0000000000000001 [ 40.483248] FS: 0000555557514300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 40.491515] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 40.497498] CR2: 00007fa1bc968710 CR3: 00000000a44c8000 CR4: 00000000003406f0 [ 40.504752] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 40.512047] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 40.519358] Kernel panic - not syncing: Fatal exception [ 40.524775] Kernel Offset: disabled [ 40.528384] Rebooting in 86400 seconds..