[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.119' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 36.173227] INFO: trying to register non-static key. [ 36.178343] The code is fine but needs lockdep annotation, or maybe [ 36.181045] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 36.184731] you didn't initialize this object before use? [ 36.184735] turning off the locking correctness validator. [ 36.184747] CPU: 1 PID: 8123 Comm: syz-executor312 Not tainted 4.19.211-syzkaller #0 [ 36.184753] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 36.184756] Call Trace: [ 36.184772] dump_stack+0x1fc/0x2ef [ 36.184787] register_lock_class+0xe82/0x11c0 [ 36.184802] ? static_obj+0x50/0x50 [ 36.237095] __lock_acquire+0x17d/0x3ff0 [ 36.241135] ? __lock_acquire+0x6de/0x3ff0 [ 36.245348] ? mark_held_locks+0xf0/0xf0 [ 36.249388] ? mark_held_locks+0xf0/0xf0 [ 36.253427] ? lock_downgrade+0x720/0x720 [ 36.257550] ? lock_acquire+0x170/0x3c0 [ 36.261501] ? get_mem_cgroup_from_page+0x7a/0x3b0 [ 36.266411] ? check_preemption_disabled+0x41/0x280 [ 36.271403] ? check_preemption_disabled+0x41/0x280 [ 36.276396] ? alloc_buffer_head+0x20/0x130 [ 36.280694] lock_acquire+0x170/0x3c0 [ 36.284475] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 36.289557] down_read+0x36/0x80 [ 36.292903] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 36.297985] nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 36.302894] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 36.307197] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 36.312898] ? save_trace+0xd6/0x290 [ 36.316595] ? nilfs_mdt_write_page+0x280/0x280 [ 36.321241] nilfs_mdt_read_block+0x96/0x3e0 [ 36.325629] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 36.331494] ? mark_held_locks+0xf0/0xf0 [ 36.335533] nilfs_mdt_get_block+0xe6/0xd40 [ 36.339840] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 36.344489] ? lock_downgrade+0x720/0x720 [ 36.348613] ? lock_acquire+0x170/0x3c0 [ 36.352562] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 36.357294] nilfs_palloc_get_block+0xc4/0x2b0 [ 36.361855] nilfs_palloc_get_entry_block+0x17b/0x230 [ 36.367023] ? nilfs_iget+0x1cf/0x860 [ 36.370801] nilfs_ifile_get_inode_block+0xbf/0x170 [ 36.375795] nilfs_iget+0x204/0x860 [ 36.379412] ? nilfs_iget_locked+0xd0/0xd0 [ 36.383628] ? nilfs_attach_log_writer+0x68b/0xa30 [ 36.388535] ? wait_woken+0x250/0x250 [ 36.392320] ? nilfs_mount+0x9df/0xe70 [ 36.396188] nilfs_get_root_dentry+0x26/0x250 [ 36.400662] nilfs_mount+0xac8/0xe70 [ 36.404355] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 36.409261] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 36.414259] ? pcpu_alloc+0xc9/0x1190 [ 36.418040] ? alloc_pages_current+0x19b/0x2a0 [ 36.422603] mount_fs+0xa3/0x310 [ 36.425949] vfs_kern_mount.part.0+0x68/0x470 [ 36.430424] do_mount+0x115c/0x2f50 [ 36.434030] ? cmp_ex_sort+0xc0/0xc0 [ 36.437722] ? __do_page_fault+0x180/0xd60 [ 36.441933] ? copy_mount_string+0x40/0x40 [ 36.446146] ? copy_mount_options+0x1cd/0x380 [ 36.450631] ? memset+0x20/0x40 [ 36.453900] ? copy_mount_options+0x26f/0x380 [ 36.458370] ksys_mount+0xcf/0x130 [ 36.461889] __x64_sys_mount+0xba/0x150 [ 36.465841] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 36.470400] do_syscall_64+0xf9/0x620 [ 36.474180] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.479345] RIP: 0033:0x7efc8ce17b0a [ 36.483035] 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 [ 36.501913] RSP: 002b:00007ffe87799638 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 36.509596] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007efc8ce17b0a [ 36.516840] RDX: 0000000020000ec0 RSI: 0000000020000f00 RDI: 00007ffe87799650 [ 36.524172] RBP: 00007ffe87799650 R08: 00007ffe87799690 R09: 0000000000000f2f [ 36.531421] R10: 0000000000000010 R11: 0000000000000286 R12: 0000000000000004 [ 36.538676] R13: 0000555556a192c0 R14: 0000000000000010 R15: 00007ffe87799690 [ 36.546283] kasan: CONFIG_KASAN_INLINE enabled [ 36.550857] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 36.558442] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 36.564672] CPU: 1 PID: 8123 Comm: syz-executor312 Not tainted 4.19.211-syzkaller #0 [ 36.572538] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 36.581877] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 36.587566] 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 [ 36.606448] RSP: 0018:ffff88808d1d7650 EFLAGS: 00010246 [ 36.611786] RAX: 0000000000000000 RBX: ffff88808dbc0098 RCX: 0000000000000000 [ 36.619034] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808dbc0158 [ 36.626279] RBP: ffff88808d1d7738 R08: 0000000000000001 R09: 0000000000000000 [ 36.633525] R10: 0000000000000005 R11: ffffffff8c66505b R12: 0000000000000002 [ 36.640770] R13: 1ffff11011a3aecb R14: ffff88808dbc00d0 R15: 0000000000000001 [ 36.648021] FS: 0000555556a19300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 36.656222] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.662081] CR2: 000055912fc34770 CR3: 00000000a9d71000 CR4: 00000000003406e0 [ 36.669334] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.676579] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.683823] Call Trace: [ 36.686392] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 36.690697] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 36.696388] ? save_trace+0xd6/0x290 [ 36.700084] ? nilfs_mdt_write_page+0x280/0x280 [ 36.704733] nilfs_mdt_read_block+0x96/0x3e0 [ 36.709123] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 36.714989] ? mark_held_locks+0xf0/0xf0 [ 36.719118] nilfs_mdt_get_block+0xe6/0xd40 [ 36.723422] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 36.728070] ? lock_downgrade+0x720/0x720 [ 36.732207] ? lock_acquire+0x170/0x3c0 [ 36.736162] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 36.740898] nilfs_palloc_get_block+0xc4/0x2b0 [ 36.745457] nilfs_palloc_get_entry_block+0x17b/0x230 [ 36.750623] ? nilfs_iget+0x1cf/0x860 [ 36.754413] nilfs_ifile_get_inode_block+0xbf/0x170 [ 36.759425] nilfs_iget+0x204/0x860 [ 36.763043] ? nilfs_iget_locked+0xd0/0xd0 [ 36.767258] ? nilfs_attach_log_writer+0x68b/0xa30 [ 36.772165] ? wait_woken+0x250/0x250 [ 36.775944] ? nilfs_mount+0x9df/0xe70 [ 36.779812] nilfs_get_root_dentry+0x26/0x250 [ 36.784283] nilfs_mount+0xac8/0xe70 [ 36.787976] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 36.792885] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 36.797880] ? pcpu_alloc+0xc9/0x1190 [ 36.801663] ? alloc_pages_current+0x19b/0x2a0 [ 36.806231] mount_fs+0xa3/0x310 [ 36.809578] vfs_kern_mount.part.0+0x68/0x470 [ 36.814060] do_mount+0x115c/0x2f50 [ 36.817667] ? cmp_ex_sort+0xc0/0xc0 [ 36.821362] ? __do_page_fault+0x180/0xd60 [ 36.825575] ? copy_mount_string+0x40/0x40 [ 36.829791] ? copy_mount_options+0x1cd/0x380 [ 36.834265] ? memset+0x20/0x40 [ 36.837525] ? copy_mount_options+0x26f/0x380 [ 36.842002] ksys_mount+0xcf/0x130 [ 36.845520] __x64_sys_mount+0xba/0x150 [ 36.849475] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 36.854035] do_syscall_64+0xf9/0x620 [ 36.857819] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.862985] RIP: 0033:0x7efc8ce17b0a [ 36.866679] 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 [ 36.885558] RSP: 002b:00007ffe87799638 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 36.893240] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007efc8ce17b0a [ 36.900487] RDX: 0000000020000ec0 RSI: 0000000020000f00 RDI: 00007ffe87799650 [ 36.907733] RBP: 00007ffe87799650 R08: 00007ffe87799690 R09: 0000000000000f2f [ 36.914979] R10: 0000000000000010 R11: 0000000000000286 R12: 0000000000000004 [ 36.922227] R13: 0000555556a192c0 R14: 0000000000000010 R15: 00007ffe87799690 [ 36.929475] Modules linked in: [ 36.933044] ---[ end trace b6b29a16e6338459 ]--- [ 36.937816] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 36.943602] 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 [ 36.962546] RSP: 0018:ffff88808d1d7650 EFLAGS: 00010246 [ 36.967894] RAX: 0000000000000000 RBX: ffff88808dbc0098 RCX: 0000000000000000 [ 36.975201] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808dbc0158 [ 36.982514] RBP: ffff88808d1d7738 R08: 0000000000000001 R09: 0000000000000000 [ 36.989771] R10: 0000000000000005 R11: ffffffff8c66505b R12: 0000000000000002 [ 36.997102] R13: 1ffff11011a3aecb R14: ffff88808dbc00d0 R15: 0000000000000001 [ 37.004442] FS: 0000555556a19300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 37.012703] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.018582] CR2: 000055912fc34770 CR3: 00000000a9d71000 CR4: 00000000003406e0 [ 37.025902] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.033205] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.040464] Kernel panic - not syncing: Fatal exception [ 37.045988] Kernel Offset: disabled [ 37.049597] Rebooting in 86400 seconds..