[ 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 '10.128.10.54' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 40.288647] INFO: trying to register non-static key. [ 40.293776] The code is fine but needs lockdep annotation, or maybe [ 40.294852] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 40.300176] you didn't initialize this object before use? [ 40.315470] turning off the locking correctness validator. [ 40.321103] CPU: 1 PID: 8105 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 40.328963] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 [ 40.338295] Call Trace: [ 40.340868] dump_stack+0x1fc/0x2ef [ 40.344491] register_lock_class+0xe82/0x11c0 [ 40.348966] ? static_obj+0x50/0x50 [ 40.352576] __lock_acquire+0x17d/0x3ff0 [ 40.356617] ? __lock_acquire+0x6de/0x3ff0 [ 40.360835] ? mark_held_locks+0xf0/0xf0 [ 40.364875] ? mark_held_locks+0xf0/0xf0 [ 40.368914] ? lock_downgrade+0x720/0x720 [ 40.373039] ? lock_acquire+0x170/0x3c0 [ 40.376993] ? get_mem_cgroup_from_page+0x7a/0x3b0 [ 40.381902] ? check_preemption_disabled+0x41/0x280 [ 40.386896] ? check_preemption_disabled+0x41/0x280 [ 40.391889] ? alloc_buffer_head+0x20/0x130 [ 40.396189] lock_acquire+0x170/0x3c0 [ 40.399966] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 40.405047] down_read+0x36/0x80 [ 40.408392] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 40.413472] nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 40.418381] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 40.422685] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 40.428374] ? save_trace+0xd6/0x290 [ 40.432065] ? nilfs_mdt_write_page+0x280/0x280 [ 40.436713] nilfs_mdt_read_block+0x96/0x3e0 [ 40.441099] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 40.446961] ? mark_held_locks+0xf0/0xf0 [ 40.451003] nilfs_mdt_get_block+0xe6/0xd40 [ 40.455311] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 40.460047] ? lock_downgrade+0x720/0x720 [ 40.464172] ? lock_acquire+0x170/0x3c0 [ 40.468123] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 40.472857] nilfs_palloc_get_block+0xc4/0x2b0 [ 40.477419] nilfs_palloc_get_entry_block+0x17b/0x230 [ 40.482599] ? nilfs_iget+0x1cf/0x860 [ 40.486393] nilfs_ifile_get_inode_block+0xbf/0x170 [ 40.491397] nilfs_iget+0x204/0x860 [ 40.495005] ? nilfs_iget_locked+0xd0/0xd0 [ 40.499217] ? nilfs_attach_log_writer+0x68b/0xa30 [ 40.504132] ? wait_woken+0x250/0x250 [ 40.507914] ? nilfs_mount+0x9df/0xe70 [ 40.511779] nilfs_get_root_dentry+0x26/0x250 [ 40.516256] nilfs_mount+0xac8/0xe70 [ 40.519950] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 40.524858] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 40.529855] ? pcpu_alloc+0xc9/0x1190 [ 40.533638] ? alloc_pages_current+0x19b/0x2a0 [ 40.538286] mount_fs+0xa3/0x310 [ 40.541639] vfs_kern_mount.part.0+0x68/0x470 [ 40.546114] do_mount+0x115c/0x2f50 [ 40.549731] ? do_raw_spin_unlock+0x171/0x230 [ 40.554206] ? check_preemption_disabled+0x41/0x280 [ 40.559200] ? copy_mount_string+0x40/0x40 [ 40.563411] ? copy_mount_options+0x59/0x380 [ 40.567799] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 40.572804] ? kmem_cache_alloc_trace+0x323/0x380 [ 40.577631] ? copy_mount_options+0x26f/0x380 [ 40.582111] ksys_mount+0xcf/0x130 [ 40.585645] __x64_sys_mount+0xba/0x150 [ 40.589622] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 40.594198] do_syscall_64+0xf9/0x620 [ 40.597984] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 40.603150] RIP: 0033:0x7f20d32159fa [ 40.606843] 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 [ 40.625724] RSP: 002b:00007ffde489d1b8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 40.633413] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f20d32159fa [ 40.640662] RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007ffde489d1d0 [ 40.647912] RBP: 00007ffde489d1d0 R08: 00007ffde489d210 R09: 000055555697e2c0 [ 40.655159] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004 [ 40.662406] R13: 00007ffde489d210 R14: 000000000000003b R15: 0000000020000788 [ 40.670180] kasan: CONFIG_KASAN_INLINE enabled [ 40.674791] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 40.682159] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 40.688392] CPU: 1 PID: 8105 Comm: syz-executor419 Not tainted 4.19.211-syzkaller #0 [ 40.696264] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 [ 40.705604] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 40.711292] 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 [ 40.730171] RSP: 0000:ffff888092cdf650 EFLAGS: 00010246 [ 40.735513] RAX: 0000000000000000 RBX: ffff88808a810098 RCX: 0000000000000000 [ 40.742766] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808a810158 [ 40.750016] RBP: ffff888092cdf738 R08: 0000000000000001 R09: 0000000000000000 [ 40.757263] R10: 0000000000000005 R11: ffffffff8c66505b R12: 0000000000000002 [ 40.764510] R13: 1ffff1101259becb R14: ffff88808a8100d0 R15: 0000000000000001 [ 40.771762] FS: 000055555697e300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 40.779967] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 40.785825] CR2: 00007fa28ad5cf60 CR3: 00000000b2a04000 CR4: 00000000003406e0 [ 40.793077] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 40.800329] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 40.807574] Call Trace: [ 40.810147] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 40.814460] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 40.820156] ? save_trace+0xd6/0x290 [ 40.823851] ? nilfs_mdt_write_page+0x280/0x280 [ 40.828504] nilfs_mdt_read_block+0x96/0x3e0 [ 40.832896] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 40.838779] ? mark_held_locks+0xf0/0xf0 [ 40.842831] nilfs_mdt_get_block+0xe6/0xd40 [ 40.847140] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 40.851799] ? lock_downgrade+0x720/0x720 [ 40.855927] ? lock_acquire+0x170/0x3c0 [ 40.859879] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 40.864614] nilfs_palloc_get_block+0xc4/0x2b0 [ 40.869175] nilfs_palloc_get_entry_block+0x17b/0x230 [ 40.874344] ? nilfs_iget+0x1cf/0x860 [ 40.878128] nilfs_ifile_get_inode_block+0xbf/0x170 [ 40.883126] nilfs_iget+0x204/0x860 [ 40.886735] ? nilfs_iget_locked+0xd0/0xd0 [ 40.890951] ? nilfs_attach_log_writer+0x68b/0xa30 [ 40.895870] ? wait_woken+0x250/0x250 [ 40.899670] ? nilfs_mount+0x9df/0xe70 [ 40.903550] nilfs_get_root_dentry+0x26/0x250 [ 40.908027] nilfs_mount+0xac8/0xe70 [ 40.911727] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 40.916637] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 40.921631] ? pcpu_alloc+0xc9/0x1190 [ 40.925412] ? alloc_pages_current+0x19b/0x2a0 [ 40.929976] mount_fs+0xa3/0x310 [ 40.933324] vfs_kern_mount.part.0+0x68/0x470 [ 40.937803] do_mount+0x115c/0x2f50 [ 40.941414] ? do_raw_spin_unlock+0x171/0x230 [ 40.945895] ? check_preemption_disabled+0x41/0x280 [ 40.950890] ? copy_mount_string+0x40/0x40 [ 40.955102] ? copy_mount_options+0x59/0x380 [ 40.959492] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 40.964486] ? kmem_cache_alloc_trace+0x323/0x380 [ 40.969306] ? copy_mount_options+0x26f/0x380 [ 40.973780] ksys_mount+0xcf/0x130 [ 40.977300] __x64_sys_mount+0xba/0x150 [ 40.981254] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 40.985815] do_syscall_64+0xf9/0x620 [ 40.989598] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 40.994878] RIP: 0033:0x7f20d32159fa [ 40.998573] 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 [ 41.017597] RSP: 002b:00007ffde489d1b8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 41.025297] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f20d32159fa [ 41.032554] RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007ffde489d1d0 [ 41.039805] RBP: 00007ffde489d1d0 R08: 00007ffde489d210 R09: 000055555697e2c0 [ 41.047052] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004 [ 41.054303] R13: 00007ffde489d210 R14: 000000000000003b R15: 0000000020000788 [ 41.061562] Modules linked in: [ 41.064969] ---[ end trace 71ce78e4dcea4a9d ]--- [ 41.069738] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 41.075523] 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 [ 41.094482] RSP: 0000:ffff888092cdf650 EFLAGS: 00010246 [ 41.099922] RAX: 0000000000000000 RBX: ffff88808a810098 RCX: 0000000000000000 [ 41.107241] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808a810158 [ 41.114567] RBP: ffff888092cdf738 R08: 0000000000000001 R09: 0000000000000000 [ 41.121826] R10: 0000000000000005 R11: ffffffff8c66505b R12: 0000000000000002 [ 41.129139] R13: 1ffff1101259becb R14: ffff88808a8100d0 R15: 0000000000000001 [ 41.136551] FS: 000055555697e300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 41.144804] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.150698] CR2: 00007fa28ad5cf60 CR3: 00000000b2a04000 CR4: 00000000003406e0 [ 41.158092] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.165402] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.172928] Kernel panic - not syncing: Fatal exception [ 41.178487] Kernel Offset: disabled [ 41.182101] Rebooting in 86400 seconds..