[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.197' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 34.572071] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 34.582468] INFO: trying to register non-static key. [ 34.587592] The code is fine but needs lockdep annotation, or maybe [ 34.594244] you didn't initialize this object before use? [ 34.599844] turning off the locking correctness validator. [ 34.605447] CPU: 1 PID: 8097 Comm: syz-executor306 Not tainted 4.19.211-syzkaller #0 [ 34.613391] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 34.622719] Call Trace: [ 34.625294] dump_stack+0x1fc/0x2ef [ 34.628903] register_lock_class+0xe82/0x11c0 [ 34.633377] ? static_obj+0x50/0x50 [ 34.636989] __lock_acquire+0x17d/0x3ff0 [ 34.641041] ? __lock_acquire+0x6de/0x3ff0 [ 34.645258] ? mark_held_locks+0xf0/0xf0 [ 34.649299] ? mark_held_locks+0xf0/0xf0 [ 34.653352] ? lock_downgrade+0x720/0x720 [ 34.657483] ? lock_acquire+0x170/0x3c0 [ 34.661436] ? get_mem_cgroup_from_page+0x7a/0x3b0 [ 34.666344] ? check_preemption_disabled+0x41/0x280 [ 34.671339] ? check_preemption_disabled+0x41/0x280 [ 34.676337] ? alloc_buffer_head+0x20/0x130 [ 34.680735] lock_acquire+0x170/0x3c0 [ 34.684566] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 34.689666] down_read+0x36/0x80 [ 34.693014] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 34.698113] nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 34.703034] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 34.707342] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 34.713060] ? save_trace+0xd6/0x290 [ 34.716773] ? nilfs_mdt_write_page+0x280/0x280 [ 34.721452] nilfs_mdt_read_block+0x96/0x3e0 [ 34.725847] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 34.731716] ? mark_held_locks+0xf0/0xf0 [ 34.735844] nilfs_mdt_get_block+0xe6/0xd40 [ 34.740287] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 34.744960] ? lock_downgrade+0x720/0x720 [ 34.749265] ? lock_acquire+0x170/0x3c0 [ 34.753230] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 34.757976] nilfs_palloc_get_block+0xc4/0x2b0 [ 34.762554] nilfs_palloc_get_entry_block+0x17b/0x230 [ 34.767741] ? nilfs_iget+0x1cf/0x860 [ 34.771526] nilfs_ifile_get_inode_block+0xbf/0x170 [ 34.776527] nilfs_iget+0x204/0x860 [ 34.780145] ? nilfs_iget_locked+0xd0/0xd0 [ 34.784362] ? nilfs_attach_log_writer+0x68b/0xa30 [ 34.789270] ? wait_woken+0x250/0x250 [ 34.793049] ? nilfs_mount+0x9df/0xe70 [ 34.796915] nilfs_get_root_dentry+0x26/0x250 [ 34.801484] nilfs_mount+0xac8/0xe70 [ 34.805187] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 34.810095] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 34.815089] ? pcpu_alloc+0xc9/0x1190 [ 34.819070] ? alloc_pages_current+0x19b/0x2a0 [ 34.823629] mount_fs+0xa3/0x310 [ 34.826973] vfs_kern_mount.part.0+0x68/0x470 [ 34.831448] do_mount+0x115c/0x2f50 [ 34.835058] ? lock_acquire+0x170/0x3c0 [ 34.839010] ? check_preemption_disabled+0x41/0x280 [ 34.844525] ? copy_mount_string+0x40/0x40 [ 34.848736] ? copy_mount_options+0x59/0x380 [ 34.853125] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 34.858119] ? kmem_cache_alloc_trace+0x323/0x380 [ 34.862939] ? copy_mount_options+0x26f/0x380 [ 34.867413] ksys_mount+0xcf/0x130 [ 34.870933] __x64_sys_mount+0xba/0x150 [ 34.874974] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 34.879562] do_syscall_64+0xf9/0x620 [ 34.883345] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 34.888513] RIP: 0033:0x7f4efefe16ea [ 34.892301] 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 [ 34.911192] RSP: 002b:00007fffbb8a7cf8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 34.918880] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f4efefe16ea [ 34.926131] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fffbb8a7d10 [ 34.934072] RBP: 00007fffbb8a7d10 R08: 00007fffbb8a7d50 R09: 000055555639e2c0 [ 34.941319] R10: 0000000000004000 R11: 0000000000000286 R12: 0000000000000004 [ 34.948827] R13: 00007fffbb8a7d50 R14: 000000000000003b R15: 0000000020000788 [ 34.956727] kasan: CONFIG_KASAN_INLINE enabled [ 34.962432] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 34.969845] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 34.976658] CPU: 1 PID: 8097 Comm: syz-executor306 Not tainted 4.19.211-syzkaller #0 [ 34.984528] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 34.993876] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 34.999571] 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 [ 35.018542] RSP: 0018:ffff88809506f650 EFLAGS: 00010246 [ 35.023979] RAX: 0000000000000000 RBX: ffff88808b0067b0 RCX: 0000000000000000 [ 35.031232] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808b006870 [ 35.038680] RBP: ffff88809506f738 R08: 0000000000000001 R09: 0000000000000000 [ 35.045934] R10: 0000000000000005 R11: ffffffff8c66505b R12: 0000000000000002 [ 35.053189] R13: 1ffff11012a0decb R14: ffff88808b0067e8 R15: 0000000000000001 [ 35.060450] FS: 000055555639e300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 35.068654] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.074512] CR2: 000056061922b988 CR3: 000000009aca2000 CR4: 00000000003406e0 [ 35.081761] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.089011] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.096257] Call Trace: [ 35.098830] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 35.103220] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 35.108909] ? save_trace+0xd6/0x290 [ 35.112602] ? nilfs_mdt_write_page+0x280/0x280 [ 35.117249] nilfs_mdt_read_block+0x96/0x3e0 [ 35.121661] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 35.127525] ? mark_held_locks+0xf0/0xf0 [ 35.131567] nilfs_mdt_get_block+0xe6/0xd40 [ 35.135871] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 35.140611] ? lock_downgrade+0x720/0x720 [ 35.144736] ? lock_acquire+0x170/0x3c0 [ 35.148698] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 35.153433] nilfs_palloc_get_block+0xc4/0x2b0 [ 35.157996] nilfs_palloc_get_entry_block+0x17b/0x230 [ 35.163252] ? nilfs_iget+0x1cf/0x860 [ 35.167035] nilfs_ifile_get_inode_block+0xbf/0x170 [ 35.172029] nilfs_iget+0x204/0x860 [ 35.175634] ? nilfs_iget_locked+0xd0/0xd0 [ 35.179849] ? nilfs_attach_log_writer+0x68b/0xa30 [ 35.184758] ? wait_woken+0x250/0x250 [ 35.188545] ? nilfs_mount+0x9df/0xe70 [ 35.192413] nilfs_get_root_dentry+0x26/0x250 [ 35.196898] nilfs_mount+0xac8/0xe70 [ 35.200593] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 35.205502] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 35.210499] ? pcpu_alloc+0xc9/0x1190 [ 35.214290] ? alloc_pages_current+0x19b/0x2a0 [ 35.218849] mount_fs+0xa3/0x310 [ 35.222196] vfs_kern_mount.part.0+0x68/0x470 [ 35.226668] do_mount+0x115c/0x2f50 [ 35.230276] ? lock_acquire+0x170/0x3c0 [ 35.234234] ? check_preemption_disabled+0x41/0x280 [ 35.239230] ? copy_mount_string+0x40/0x40 [ 35.243471] ? copy_mount_options+0x59/0x380 [ 35.247867] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 35.252870] ? kmem_cache_alloc_trace+0x323/0x380 [ 35.257690] ? copy_mount_options+0x26f/0x380 [ 35.262163] ksys_mount+0xcf/0x130 [ 35.265682] __x64_sys_mount+0xba/0x150 [ 35.269643] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 35.274203] do_syscall_64+0xf9/0x620 [ 35.277983] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.283151] RIP: 0033:0x7f4efefe16ea [ 35.286844] 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 [ 35.306156] RSP: 002b:00007fffbb8a7cf8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 35.313852] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f4efefe16ea [ 35.321129] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fffbb8a7d10 [ 35.328378] RBP: 00007fffbb8a7d10 R08: 00007fffbb8a7d50 R09: 000055555639e2c0 [ 35.335626] R10: 0000000000004000 R11: 0000000000000286 R12: 0000000000000004 [ 35.342873] R13: 00007fffbb8a7d50 R14: 000000000000003b R15: 0000000020000788 [ 35.350121] Modules linked in: [ 35.353544] ---[ end trace 603a35059b6a7ee5 ]--- [ 35.358350] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 35.364061] 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 [ 35.383011] RSP: 0018:ffff88809506f650 EFLAGS: 00010246 [ 35.388442] RAX: 0000000000000000 RBX: ffff88808b0067b0 RCX: 0000000000000000 [ 35.395703] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808b006870 [ 35.403007] RBP: ffff88809506f738 R08: 0000000000000001 R09: 0000000000000000 [ 35.410315] R10: 0000000000000005 R11: ffffffff8c66505b R12: 0000000000000002 [ 35.417582] R13: 1ffff11012a0decb R14: ffff88808b0067e8 R15: 0000000000000001 [ 35.424882] FS: 000055555639e300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 35.433148] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.439055] CR2: 000056061922b988 CR3: 000000009aca2000 CR4: 00000000003406e0 [ 35.446319] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.453611] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.460926] Kernel panic - not syncing: Fatal exception [ 35.466439] Kernel Offset: disabled [ 35.470046] Rebooting in 86400 seconds..