[ 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 '10.128.1.69' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 34.528787] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 34.533712] INFO: trying to register non-static key. [ 34.543674] The code is fine but needs lockdep annotation, or maybe [ 34.550064] you didn't initialize this object before use? [ 34.555590] turning off the locking correctness validator. [ 34.561207] CPU: 1 PID: 8108 Comm: syz-executor323 Not tainted 4.19.211-syzkaller #0 [ 34.569062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 34.578392] Call Trace: [ 34.580963] dump_stack+0x1fc/0x2ef [ 34.584570] register_lock_class+0xe82/0x11c0 [ 34.589044] ? static_obj+0x50/0x50 [ 34.592647] __lock_acquire+0x17d/0x3ff0 [ 34.596686] ? __lock_acquire+0x6de/0x3ff0 [ 34.600896] ? mark_held_locks+0xf0/0xf0 [ 34.604935] ? mark_held_locks+0xf0/0xf0 [ 34.608971] ? lock_downgrade+0x720/0x720 [ 34.613096] ? lock_acquire+0x170/0x3c0 [ 34.617048] ? get_mem_cgroup_from_page+0x7a/0x3b0 [ 34.622008] ? check_preemption_disabled+0x41/0x280 [ 34.626998] ? check_preemption_disabled+0x41/0x280 [ 34.631990] ? alloc_buffer_head+0x20/0x130 [ 34.636286] lock_acquire+0x170/0x3c0 [ 34.640063] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 34.645142] down_read+0x36/0x80 [ 34.648544] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 34.653638] nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 34.658554] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 34.662854] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 34.668542] ? save_trace+0xd6/0x290 [ 34.672235] ? nilfs_mdt_write_page+0x280/0x280 [ 34.676969] nilfs_mdt_read_block+0x96/0x3e0 [ 34.681443] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 34.687309] ? mark_held_locks+0xf0/0xf0 [ 34.691358] nilfs_mdt_get_block+0xe6/0xd40 [ 34.695660] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 34.700304] ? lock_downgrade+0x720/0x720 [ 34.704430] ? lock_acquire+0x170/0x3c0 [ 34.708378] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 34.713108] nilfs_palloc_get_block+0xc4/0x2b0 [ 34.717691] nilfs_palloc_get_entry_block+0x17b/0x230 [ 34.722856] ? nilfs_iget+0x1cf/0x860 [ 34.726633] nilfs_ifile_get_inode_block+0xbf/0x170 [ 34.731634] nilfs_iget+0x204/0x860 [ 34.735237] ? nilfs_iget_locked+0xd0/0xd0 [ 34.739449] ? nilfs_attach_log_writer+0x68b/0xa30 [ 34.744354] ? wait_woken+0x250/0x250 [ 34.748129] ? nilfs_mount+0x9df/0xe70 [ 34.751993] nilfs_get_root_dentry+0x26/0x250 [ 34.756464] nilfs_mount+0xac8/0xe70 [ 34.760158] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 34.765063] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 34.770055] ? pcpu_alloc+0xc9/0x1190 [ 34.773833] ? alloc_pages_current+0x19b/0x2a0 [ 34.778389] mount_fs+0xa3/0x310 [ 34.781732] vfs_kern_mount.part.0+0x68/0x470 [ 34.786204] do_mount+0x115c/0x2f50 [ 34.789806] ? do_raw_spin_unlock+0x171/0x230 [ 34.794280] ? check_preemption_disabled+0x41/0x280 [ 34.799271] ? copy_mount_string+0x40/0x40 [ 34.803485] ? copy_mount_options+0x59/0x380 [ 34.807867] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 34.812857] ? kmem_cache_alloc_trace+0x323/0x380 [ 34.817675] ? copy_mount_options+0x26f/0x380 [ 34.822147] ksys_mount+0xcf/0x130 [ 34.825661] __x64_sys_mount+0xba/0x150 [ 34.829613] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 34.834282] do_syscall_64+0xf9/0x620 [ 34.838063] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 34.843234] RIP: 0033:0x7f64913e461a [ 34.846929] 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 [ 34.865807] RSP: 002b:00007ffe8fea6ed8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 34.873501] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f64913e461a [ 34.880764] RDX: 0000000020000000 RSI: 0000000020000080 RDI: 00007ffe8fea6ef0 [ 34.888009] RBP: 00007ffe8fea6ef0 R08: 00007ffe8fea6f30 R09: 00005555559dc2c0 [ 34.895254] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004 [ 34.902608] R13: 00007ffe8fea6f30 R14: 000000000000003a R15: 0000000020000770 [ 34.910285] kasan: CONFIG_KASAN_INLINE enabled [ 34.914889] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 34.922245] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 34.928480] CPU: 1 PID: 8108 Comm: syz-executor323 Not tainted 4.19.211-syzkaller #0 [ 34.936490] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 34.945830] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 34.951518] 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 [ 34.970395] RSP: 0018:ffff88809579f650 EFLAGS: 00010246 [ 34.975744] RAX: 0000000000000000 RBX: ffff88808db5b7b0 RCX: 0000000000000000 [ 34.982992] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808db5b870 [ 34.990239] RBP: ffff88809579f738 R08: 0000000000000001 R09: 0000000000000000 [ 34.997485] R10: 0000000000000005 R11: ffffffff8c66505b R12: 0000000000000002 [ 35.004749] R13: 1ffff11012af3ecb R14: ffff88808db5b7e8 R15: 0000000000000001 [ 35.011996] FS: 00005555559dc300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 35.020201] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.026057] CR2: 00007f60488ec6c0 CR3: 00000000a1c5d000 CR4: 00000000003406e0 [ 35.033309] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.040554] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.047801] Call Trace: [ 35.050367] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 35.054692] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 35.060383] ? save_trace+0xd6/0x290 [ 35.064077] ? nilfs_mdt_write_page+0x280/0x280 [ 35.068733] nilfs_mdt_read_block+0x96/0x3e0 [ 35.073122] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 35.079004] ? mark_held_locks+0xf0/0xf0 [ 35.083047] nilfs_mdt_get_block+0xe6/0xd40 [ 35.087348] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 35.091995] ? lock_downgrade+0x720/0x720 [ 35.096120] ? lock_acquire+0x170/0x3c0 [ 35.100072] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 35.104806] nilfs_palloc_get_block+0xc4/0x2b0 [ 35.109365] nilfs_palloc_get_entry_block+0x17b/0x230 [ 35.114536] ? nilfs_iget+0x1cf/0x860 [ 35.118313] nilfs_ifile_get_inode_block+0xbf/0x170 [ 35.123307] nilfs_iget+0x204/0x860 [ 35.126911] ? nilfs_iget_locked+0xd0/0xd0 [ 35.131999] ? nilfs_attach_log_writer+0x68b/0xa30 [ 35.136908] ? wait_woken+0x250/0x250 [ 35.140686] ? nilfs_mount+0x9df/0xe70 [ 35.144553] nilfs_get_root_dentry+0x26/0x250 [ 35.149024] nilfs_mount+0xac8/0xe70 [ 35.152716] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 35.157625] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 35.162617] ? pcpu_alloc+0xc9/0x1190 [ 35.166395] ? alloc_pages_current+0x19b/0x2a0 [ 35.170955] mount_fs+0xa3/0x310 [ 35.174302] vfs_kern_mount.part.0+0x68/0x470 [ 35.178778] do_mount+0x115c/0x2f50 [ 35.182384] ? do_raw_spin_unlock+0x171/0x230 [ 35.186856] ? check_preemption_disabled+0x41/0x280 [ 35.191852] ? copy_mount_string+0x40/0x40 [ 35.196071] ? copy_mount_options+0x59/0x380 [ 35.200466] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 35.205465] ? kmem_cache_alloc_trace+0x323/0x380 [ 35.210289] ? copy_mount_options+0x26f/0x380 [ 35.214767] ksys_mount+0xcf/0x130 [ 35.218286] __x64_sys_mount+0xba/0x150 [ 35.222240] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 35.226805] do_syscall_64+0xf9/0x620 [ 35.230587] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.235755] RIP: 0033:0x7f64913e461a [ 35.239456] 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 [ 35.258339] RSP: 002b:00007ffe8fea6ed8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 35.266022] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f64913e461a [ 35.273272] RDX: 0000000020000000 RSI: 0000000020000080 RDI: 00007ffe8fea6ef0 [ 35.280523] RBP: 00007ffe8fea6ef0 R08: 00007ffe8fea6f30 R09: 00005555559dc2c0 [ 35.287772] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004 [ 35.295023] R13: 00007ffe8fea6f30 R14: 000000000000003a R15: 0000000020000770 [ 35.302278] Modules linked in: [ 35.305597] ---[ end trace 4a4df89bd61523fa ]--- [ 35.310365] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 35.316119] 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 [ 35.335081] RSP: 0018:ffff88809579f650 EFLAGS: 00010246 [ 35.340427] RAX: 0000000000000000 RBX: ffff88808db5b7b0 RCX: 0000000000000000 [ 35.347716] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808db5b870 [ 35.355019] RBP: ffff88809579f738 R08: 0000000000000001 R09: 0000000000000000 [ 35.362275] R10: 0000000000000005 R11: ffffffff8c66505b R12: 0000000000000002 [ 35.369564] R13: 1ffff11012af3ecb R14: ffff88808db5b7e8 R15: 0000000000000001 [ 35.376888] FS: 00005555559dc300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 35.385131] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.391006] CR2: 00007f60488ec6c0 CR3: 00000000a1c5d000 CR4: 00000000003406e0 [ 35.398304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.405615] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.412873] Kernel panic - not syncing: Fatal exception [ 35.418279] Kernel Offset: disabled [ 35.421889] Rebooting in 86400 seconds..