[ 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 '10.128.1.4' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 35.099413] INFO: trying to register non-static key. [ 35.104622] The code is fine but needs lockdep annotation, or maybe [ 35.109791] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 35.111015] you didn't initialize this object before use? [ 35.111018] turning off the locking correctness validator. [ 35.111030] CPU: 1 PID: 8098 Comm: syz-executor179 Not tainted 4.19.211-syzkaller #0 [ 35.111035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 35.111039] Call Trace: [ 35.111057] dump_stack+0x1fc/0x2ef [ 35.111072] register_lock_class+0xe82/0x11c0 [ 35.111086] ? static_obj+0x50/0x50 [ 35.163567] __lock_acquire+0x17d/0x3ff0 [ 35.167611] ? __lock_acquire+0x6de/0x3ff0 [ 35.171893] ? mark_held_locks+0xf0/0xf0 [ 35.175933] ? mark_held_locks+0xf0/0xf0 [ 35.179975] ? lock_downgrade+0x720/0x720 [ 35.184162] ? lock_acquire+0x170/0x3c0 [ 35.188201] ? get_mem_cgroup_from_page+0x7a/0x3b0 [ 35.193110] ? check_preemption_disabled+0x41/0x280 [ 35.198106] ? check_preemption_disabled+0x41/0x280 [ 35.203104] ? alloc_buffer_head+0x20/0x130 [ 35.207410] lock_acquire+0x170/0x3c0 [ 35.211194] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 35.216283] down_read+0x36/0x80 [ 35.219743] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 35.224837] nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 35.229753] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 35.234061] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 35.239805] ? save_trace+0xd6/0x290 [ 35.243519] ? nilfs_mdt_write_page+0x280/0x280 [ 35.248172] nilfs_mdt_read_block+0x96/0x3e0 [ 35.252563] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 35.258427] ? mark_held_locks+0xf0/0xf0 [ 35.262487] nilfs_mdt_get_block+0xe6/0xd40 [ 35.266794] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 35.271446] ? lock_downgrade+0x720/0x720 [ 35.275578] ? lock_acquire+0x170/0x3c0 [ 35.279527] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 35.284261] nilfs_palloc_get_block+0xc4/0x2b0 [ 35.288825] nilfs_palloc_get_entry_block+0x17b/0x230 [ 35.294002] ? nilfs_iget+0x1cf/0x860 [ 35.297782] nilfs_ifile_get_inode_block+0xbf/0x170 [ 35.302775] nilfs_iget+0x204/0x860 [ 35.306381] ? nilfs_iget_locked+0xd0/0xd0 [ 35.310650] ? nilfs_attach_log_writer+0x68b/0xa30 [ 35.315729] ? wait_woken+0x250/0x250 [ 35.319522] ? nilfs_mount+0x9df/0xe70 [ 35.323394] nilfs_get_root_dentry+0x26/0x250 [ 35.328051] nilfs_mount+0xac8/0xe70 [ 35.331754] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 35.336816] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 35.341817] ? pcpu_alloc+0xc9/0x1190 [ 35.345602] ? alloc_pages_current+0x19b/0x2a0 [ 35.350161] mount_fs+0xa3/0x310 [ 35.353520] vfs_kern_mount.part.0+0x68/0x470 [ 35.357995] do_mount+0x115c/0x2f50 [ 35.361619] ? __do_page_fault+0x180/0xd60 [ 35.365845] ? copy_mount_string+0x40/0x40 [ 35.370174] ? copy_mount_options+0x1cd/0x380 [ 35.374651] ? copy_mount_options+0x1da/0x380 [ 35.379127] ? copy_mount_options+0x1e9/0x380 [ 35.383613] ? copy_mount_options+0x26f/0x380 [ 35.388095] ksys_mount+0xcf/0x130 [ 35.391616] __x64_sys_mount+0xba/0x150 [ 35.395576] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 35.400140] do_syscall_64+0xf9/0x620 [ 35.403925] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.409095] RIP: 0033:0x7f01164dc71a [ 35.412790] 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 [ 35.431669] RSP: 002b:00007ffd3076fad8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 35.439358] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f01164dc71a [ 35.446624] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffd3076faf0 [ 35.453873] RBP: 00007ffd3076faf0 R08: 00007ffd3076fb30 R09: 0000555556c0c2c0 [ 35.461120] R10: 0000000001000010 R11: 0000000000000286 R12: 0000000000000004 [ 35.468366] R13: 00007ffd3076fb30 R14: 0000000000000039 R15: 0000000020000758 [ 35.475989] kasan: CONFIG_KASAN_INLINE enabled [ 35.480782] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 35.488236] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 35.494466] CPU: 1 PID: 8098 Comm: syz-executor179 Not tainted 4.19.211-syzkaller #0 [ 35.502338] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 35.511680] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 35.517380] 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 [ 35.536265] RSP: 0018:ffff88809be2f650 EFLAGS: 00010246 [ 35.541608] RAX: 0000000000000000 RBX: ffff88808b064098 RCX: 0000000000000000 [ 35.548854] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808b064158 [ 35.556124] RBP: ffff88809be2f738 R08: 0000000000000001 R09: 0000000000000000 [ 35.563461] R10: 0000000000000005 R11: ffffffff8c66505b R12: 0000000000000002 [ 35.570708] R13: 1ffff110137c5ecb R14: ffff88808b0640d0 R15: 0000000000000001 [ 35.577957] FS: 0000555556c0c300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 35.586161] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.592111] CR2: 00007ffd30770000 CR3: 00000000a8cca000 CR4: 00000000003406e0 [ 35.599362] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.606621] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.613866] Call Trace: [ 35.616448] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 35.620784] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 35.626480] ? save_trace+0xd6/0x290 [ 35.630182] ? nilfs_mdt_write_page+0x280/0x280 [ 35.634838] nilfs_mdt_read_block+0x96/0x3e0 [ 35.639268] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 35.645229] ? mark_held_locks+0xf0/0xf0 [ 35.649471] nilfs_mdt_get_block+0xe6/0xd40 [ 35.653785] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 35.658803] ? lock_downgrade+0x720/0x720 [ 35.662930] ? lock_acquire+0x170/0x3c0 [ 35.666884] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 35.671623] nilfs_palloc_get_block+0xc4/0x2b0 [ 35.676197] nilfs_palloc_get_entry_block+0x17b/0x230 [ 35.682584] ? nilfs_iget+0x1cf/0x860 [ 35.686507] nilfs_ifile_get_inode_block+0xbf/0x170 [ 35.691518] nilfs_iget+0x204/0x860 [ 35.695372] ? nilfs_iget_locked+0xd0/0xd0 [ 35.699625] ? nilfs_attach_log_writer+0x68b/0xa30 [ 35.704568] ? wait_woken+0x250/0x250 [ 35.708456] ? nilfs_mount+0x9df/0xe70 [ 35.712458] nilfs_get_root_dentry+0x26/0x250 [ 35.717982] nilfs_mount+0xac8/0xe70 [ 35.722058] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 35.727167] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 35.732187] ? pcpu_alloc+0xc9/0x1190 [ 35.735975] ? alloc_pages_current+0x19b/0x2a0 [ 35.740550] mount_fs+0xa3/0x310 [ 35.743909] vfs_kern_mount.part.0+0x68/0x470 [ 35.748423] do_mount+0x115c/0x2f50 [ 35.752081] ? __do_page_fault+0x180/0xd60 [ 35.756295] ? copy_mount_string+0x40/0x40 [ 35.760694] ? copy_mount_options+0x1cd/0x380 [ 35.765391] ? copy_mount_options+0x1da/0x380 [ 35.769875] ? copy_mount_options+0x1e9/0x380 [ 35.774360] ? copy_mount_options+0x26f/0x380 [ 35.778923] ksys_mount+0xcf/0x130 [ 35.782466] __x64_sys_mount+0xba/0x150 [ 35.786419] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 35.790991] do_syscall_64+0xf9/0x620 [ 35.794774] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.799942] RIP: 0033:0x7f01164dc71a [ 35.803659] 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 [ 35.822654] RSP: 002b:00007ffd3076fad8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 35.830352] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f01164dc71a [ 35.837602] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffd3076faf0 [ 35.844854] RBP: 00007ffd3076faf0 R08: 00007ffd3076fb30 R09: 0000555556c0c2c0 [ 35.852106] R10: 0000000001000010 R11: 0000000000000286 R12: 0000000000000004 [ 35.859356] R13: 00007ffd3076fb30 R14: 0000000000000039 R15: 0000000020000758 [ 35.866604] Modules linked in: [ 35.870129] ---[ end trace 62fd7a5776fb8eae ]--- [ 35.875159] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 35.881150] 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 [ 35.900313] RSP: 0018:ffff88809be2f650 EFLAGS: 00010246 [ 35.905683] RAX: 0000000000000000 RBX: ffff88808b064098 RCX: 0000000000000000 [ 35.913032] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808b064158 [ 35.920386] RBP: ffff88809be2f738 R08: 0000000000000001 R09: 0000000000000000 [ 35.927874] R10: 0000000000000005 R11: ffffffff8c66505b R12: 0000000000000002 [ 35.935300] R13: 1ffff110137c5ecb R14: ffff88808b0640d0 R15: 0000000000000001 [ 35.943108] FS: 0000555556c0c300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 35.951389] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.957279] CR2: 00007ffd30770000 CR3: 00000000a8cca000 CR4: 00000000003406e0 [ 35.964629] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.971938] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.979207] Kernel panic - not syncing: Fatal exception [ 35.984968] Kernel Offset: disabled [ 35.988590] Rebooting in 86400 seconds..