[ 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 '10.128.1.1' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 35.602832] INFO: trying to register non-static key. [ 35.607942] The code is fine but needs lockdep annotation, or maybe [ 35.609159] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 35.614332] you didn't initialize this object before use? [ 35.629627] turning off the locking correctness validator. [ 35.635254] CPU: 0 PID: 8079 Comm: syz-executor148 Not tainted 4.19.211-syzkaller #0 [ 35.643122] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 35.652451] Call Trace: [ 35.655023] dump_stack+0x1fc/0x2ef [ 35.658633] register_lock_class+0xe82/0x11c0 [ 35.663116] ? static_obj+0x50/0x50 [ 35.666725] __lock_acquire+0x17d/0x3ff0 [ 35.670765] ? __lock_acquire+0x6de/0x3ff0 [ 35.674989] ? mark_held_locks+0xf0/0xf0 [ 35.679043] ? mark_held_locks+0xf0/0xf0 [ 35.683092] ? lock_downgrade+0x720/0x720 [ 35.687223] ? lock_acquire+0x170/0x3c0 [ 35.691187] ? get_mem_cgroup_from_page+0x7a/0x3b0 [ 35.696095] ? check_preemption_disabled+0x41/0x280 [ 35.701091] ? check_preemption_disabled+0x41/0x280 [ 35.706087] ? alloc_buffer_head+0x20/0x130 [ 35.710384] lock_acquire+0x170/0x3c0 [ 35.714164] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 35.719245] down_read+0x36/0x80 [ 35.722591] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 35.727672] nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 35.732579] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 35.736881] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 35.742571] ? save_trace+0xd6/0x290 [ 35.746263] ? nilfs_mdt_write_page+0x280/0x280 [ 35.750910] nilfs_mdt_read_block+0x96/0x3e0 [ 35.755296] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 35.761154] ? mark_held_locks+0xf0/0xf0 [ 35.765194] nilfs_mdt_get_block+0xe6/0xd40 [ 35.769500] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 35.774146] ? lock_downgrade+0x720/0x720 [ 35.778268] ? lock_acquire+0x170/0x3c0 [ 35.782220] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 35.787043] nilfs_palloc_get_block+0xc4/0x2b0 [ 35.791606] nilfs_palloc_get_entry_block+0x17b/0x230 [ 35.796789] ? nilfs_iget+0x1cf/0x860 [ 35.800595] nilfs_ifile_get_inode_block+0xbf/0x170 [ 35.805588] nilfs_iget+0x204/0x860 [ 35.809194] ? nilfs_iget_locked+0xd0/0xd0 [ 35.813408] ? nilfs_attach_log_writer+0x68b/0xa30 [ 35.818314] ? wait_woken+0x250/0x250 [ 35.822093] ? nilfs_mount+0x9df/0xe70 [ 35.825958] nilfs_get_root_dentry+0x26/0x250 [ 35.830432] nilfs_mount+0xac8/0xe70 [ 35.834124] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 35.839032] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 35.844025] ? pcpu_alloc+0xc9/0x1190 [ 35.847808] ? alloc_pages_current+0x19b/0x2a0 [ 35.852369] mount_fs+0xa3/0x310 [ 35.855717] vfs_kern_mount.part.0+0x68/0x470 [ 35.860279] do_mount+0x115c/0x2f50 [ 35.863895] ? lock_acquire+0x170/0x3c0 [ 35.867848] ? check_preemption_disabled+0x41/0x280 [ 35.872841] ? copy_mount_string+0x40/0x40 [ 35.877053] ? copy_mount_options+0x59/0x380 [ 35.881455] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 35.886455] ? kmem_cache_alloc_trace+0x323/0x380 [ 35.891281] ? copy_mount_options+0x26f/0x380 [ 35.895768] ksys_mount+0xcf/0x130 [ 35.899294] __x64_sys_mount+0xba/0x150 [ 35.903253] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 35.907816] do_syscall_64+0xf9/0x620 [ 35.911727] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.916897] RIP: 0033:0x7f53136bb6aa [ 35.920597] 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 [ 35.939534] RSP: 002b:00007ffd19fc4c28 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 35.947223] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f53136bb6aa [ 35.954470] RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007ffd19fc4c40 [ 35.961951] RBP: 00007ffd19fc4c40 R08: 00007ffd19fc4c80 R09: 0000555555e9e2c0 [ 35.969204] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004 [ 35.976456] R13: 00007ffd19fc4c80 R14: 0000000000000039 R15: 0000000020000758 [ 35.984073] kasan: CONFIG_KASAN_INLINE enabled [ 35.988650] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 35.996240] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 36.002485] CPU: 0 PID: 8079 Comm: syz-executor148 Not tainted 4.19.211-syzkaller #0 [ 36.010352] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 36.019694] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 36.025385] 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 [ 36.044414] RSP: 0018:ffff8880921d7650 EFLAGS: 00010246 [ 36.049760] RAX: 0000000000000000 RBX: ffff88808bc71098 RCX: 0000000000000000 [ 36.057024] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808bc71158 [ 36.064277] RBP: ffff8880921d7738 R08: 0000000000000001 R09: 0000000000000000 [ 36.071618] R10: 0000000000000005 R11: ffffffff8c66501b R12: 0000000000000002 [ 36.078868] R13: 1ffff1101243aecb R14: ffff88808bc710d0 R15: 0000000000000001 [ 36.086121] FS: 0000555555e9e300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 36.094345] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.100247] CR2: 00000000200000c4 CR3: 00000000b40e2000 CR4: 00000000003406f0 [ 36.107509] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.114761] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.122013] Call Trace: [ 36.124593] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 36.128902] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 36.134600] ? save_trace+0xd6/0x290 [ 36.138389] ? nilfs_mdt_write_page+0x280/0x280 [ 36.143041] nilfs_mdt_read_block+0x96/0x3e0 [ 36.149428] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 36.155297] ? mark_held_locks+0xf0/0xf0 [ 36.159341] nilfs_mdt_get_block+0xe6/0xd40 [ 36.163648] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 36.168295] ? lock_downgrade+0x720/0x720 [ 36.172421] ? lock_acquire+0x170/0x3c0 [ 36.176421] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 36.181164] nilfs_palloc_get_block+0xc4/0x2b0 [ 36.185726] nilfs_palloc_get_entry_block+0x17b/0x230 [ 36.190893] ? nilfs_iget+0x1cf/0x860 [ 36.194761] nilfs_ifile_get_inode_block+0xbf/0x170 [ 36.199755] nilfs_iget+0x204/0x860 [ 36.203372] ? nilfs_iget_locked+0xd0/0xd0 [ 36.207589] ? nilfs_attach_log_writer+0x68b/0xa30 [ 36.212504] ? wait_woken+0x250/0x250 [ 36.216284] ? nilfs_mount+0x9df/0xe70 [ 36.220165] nilfs_get_root_dentry+0x26/0x250 [ 36.224639] nilfs_mount+0xac8/0xe70 [ 36.228334] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 36.233244] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 36.238239] ? pcpu_alloc+0xc9/0x1190 [ 36.242039] ? alloc_pages_current+0x19b/0x2a0 [ 36.246600] mount_fs+0xa3/0x310 [ 36.249949] vfs_kern_mount.part.0+0x68/0x470 [ 36.254427] do_mount+0x115c/0x2f50 [ 36.258039] ? lock_acquire+0x170/0x3c0 [ 36.261996] ? check_preemption_disabled+0x41/0x280 [ 36.266993] ? copy_mount_string+0x40/0x40 [ 36.271286] ? copy_mount_options+0x59/0x380 [ 36.275676] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 36.280674] ? kmem_cache_alloc_trace+0x323/0x380 [ 36.285499] ? copy_mount_options+0x26f/0x380 [ 36.289974] ksys_mount+0xcf/0x130 [ 36.293495] __x64_sys_mount+0xba/0x150 [ 36.297448] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 36.302095] do_syscall_64+0xf9/0x620 [ 36.306102] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.311281] RIP: 0033:0x7f53136bb6aa [ 36.314975] 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 [ 36.333854] RSP: 002b:00007ffd19fc4c28 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 36.341540] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f53136bb6aa [ 36.348791] RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007ffd19fc4c40 [ 36.356037] RBP: 00007ffd19fc4c40 R08: 00007ffd19fc4c80 R09: 0000555555e9e2c0 [ 36.363284] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004 [ 36.370538] R13: 00007ffd19fc4c80 R14: 0000000000000039 R15: 0000000020000758 [ 36.377786] Modules linked in: [ 36.381510] ---[ end trace e46b7b2cb79d8592 ]--- [ 36.386278] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 36.392046] 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 [ 36.411139] RSP: 0018:ffff8880921d7650 EFLAGS: 00010246 [ 36.416489] RAX: 0000000000000000 RBX: ffff88808bc71098 RCX: 0000000000000000 [ 36.423810] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808bc71158 [ 36.431155] RBP: ffff8880921d7738 R08: 0000000000000001 R09: 0000000000000000 [ 36.438416] R10: 0000000000000005 R11: ffffffff8c66501b R12: 0000000000000002 [ 36.445804] R13: 1ffff1101243aecb R14: ffff88808bc710d0 R15: 0000000000000001 [ 36.453121] FS: 0000555555e9e300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 36.461373] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.467251] CR2: 00000000200000c4 CR3: 00000000b40e2000 CR4: 00000000003406f0 [ 36.474586] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.481904] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.489212] Kernel panic - not syncing: Fatal exception [ 36.494809] Kernel Offset: disabled [ 36.498428] Rebooting in 86400 seconds..