[ 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 '10.128.0.132' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 37.277778] INFO: trying to register non-static key. [ 37.282917] The code is fine but needs lockdep annotation, or maybe [ 37.289055] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 37.289315] you didn't initialize this object before use? [ 37.304605] turning off the locking correctness validator. [ 37.310208] CPU: 0 PID: 8117 Comm: syz-executor156 Not tainted 4.19.211-syzkaller #0 [ 37.318062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 37.327389] Call Trace: [ 37.329964] dump_stack+0x1fc/0x2ef [ 37.334265] register_lock_class+0xe82/0x11c0 [ 37.338738] ? static_obj+0x50/0x50 [ 37.342343] __lock_acquire+0x17d/0x3ff0 [ 37.346382] ? __lock_acquire+0x6de/0x3ff0 [ 37.350595] ? mark_held_locks+0xf0/0xf0 [ 37.354635] ? mark_held_locks+0xf0/0xf0 [ 37.358673] ? lock_downgrade+0x720/0x720 [ 37.362799] ? lock_acquire+0x170/0x3c0 [ 37.366750] ? get_mem_cgroup_from_page+0x7a/0x3b0 [ 37.371657] ? check_preemption_disabled+0x41/0x280 [ 37.376654] ? check_preemption_disabled+0x41/0x280 [ 37.381647] ? alloc_buffer_head+0x20/0x130 [ 37.385950] lock_acquire+0x170/0x3c0 [ 37.389728] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 37.394812] down_read+0x36/0x80 [ 37.398156] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 37.403245] nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 37.408157] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 37.412498] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 37.418203] ? save_trace+0xd6/0x290 [ 37.421908] ? nilfs_mdt_write_page+0x280/0x280 [ 37.426568] nilfs_mdt_read_block+0x96/0x3e0 [ 37.430965] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 37.436834] ? mark_held_locks+0xf0/0xf0 [ 37.440892] nilfs_mdt_get_block+0xe6/0xd40 [ 37.445284] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 37.449936] ? lock_downgrade+0x720/0x720 [ 37.454067] ? lock_acquire+0x170/0x3c0 [ 37.458026] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 37.462773] nilfs_palloc_get_block+0xc4/0x2b0 [ 37.467335] nilfs_palloc_get_entry_block+0x17b/0x230 [ 37.472504] ? nilfs_iget+0x1cf/0x860 [ 37.476285] nilfs_ifile_get_inode_block+0xbf/0x170 [ 37.481278] nilfs_iget+0x204/0x860 [ 37.484885] ? nilfs_iget_locked+0xd0/0xd0 [ 37.489099] ? nilfs_attach_log_writer+0x68b/0xa30 [ 37.494009] ? wait_woken+0x250/0x250 [ 37.497790] ? nilfs_mount+0x9df/0xe70 [ 37.501691] nilfs_get_root_dentry+0x26/0x250 [ 37.506166] nilfs_mount+0xac8/0xe70 [ 37.509863] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 37.514781] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 37.519777] ? pcpu_alloc+0xc9/0x1190 [ 37.523562] ? alloc_pages_current+0x19b/0x2a0 [ 37.528124] mount_fs+0xa3/0x310 [ 37.531472] vfs_kern_mount.part.0+0x68/0x470 [ 37.535948] do_mount+0x115c/0x2f50 [ 37.539555] ? do_raw_spin_unlock+0x171/0x230 [ 37.544032] ? check_preemption_disabled+0x41/0x280 [ 37.549025] ? copy_mount_string+0x40/0x40 [ 37.553236] ? copy_mount_options+0x59/0x380 [ 37.557622] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 37.562617] ? kmem_cache_alloc_trace+0x323/0x380 [ 37.567438] ? copy_mount_options+0x26f/0x380 [ 37.571909] ksys_mount+0xcf/0x130 [ 37.575427] __x64_sys_mount+0xba/0x150 [ 37.579385] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 37.583946] do_syscall_64+0xf9/0x620 [ 37.587730] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.592995] RIP: 0033:0x7fadc329049a [ 37.596702] 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 [ 37.615782] RSP: 002b:00007fff282aae78 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 37.623470] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fadc329049a [ 37.630910] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fff282aae90 [ 37.638160] RBP: 00007fff282aae90 R08: 00007fff282aaed0 R09: 00005555564c82c0 [ 37.645422] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004 [ 37.652670] R13: 00007fff282aaed0 R14: 0000000000000039 R15: 0000000020000758 [ 37.660196] kasan: CONFIG_KASAN_INLINE enabled [ 37.665138] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 37.672570] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 37.678803] CPU: 0 PID: 8117 Comm: syz-executor156 Not tainted 4.19.211-syzkaller #0 [ 37.686674] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 37.696250] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 37.701946] 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 [ 37.720831] RSP: 0018:ffff8880a2217650 EFLAGS: 00010246 [ 37.726192] RAX: 0000000000000000 RBX: ffff88808a419098 RCX: 0000000000000000 [ 37.733443] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808a419158 [ 37.740692] RBP: ffff8880a2217738 R08: 0000000000000001 R09: 0000000000000000 [ 37.747939] R10: 0000000000000005 R11: ffffffff8c66501b R12: 0000000000000002 [ 37.755187] R13: 1ffff11014442ecb R14: ffff88808a4190d0 R15: 0000000000000001 [ 37.762436] FS: 00005555564c8300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 37.770642] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.776500] CR2: 000055604c1a7848 CR3: 00000000aa8a3000 CR4: 00000000003406f0 [ 37.783836] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.791087] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.798335] Call Trace: [ 37.800906] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 37.805213] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 37.810905] ? save_trace+0xd6/0x290 [ 37.814599] ? nilfs_mdt_write_page+0x280/0x280 [ 37.819251] nilfs_mdt_read_block+0x96/0x3e0 [ 37.823643] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 37.829509] ? mark_held_locks+0xf0/0xf0 [ 37.833552] nilfs_mdt_get_block+0xe6/0xd40 [ 37.837861] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 37.842514] ? lock_downgrade+0x720/0x720 [ 37.846642] ? lock_acquire+0x170/0x3c0 [ 37.850597] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 37.855331] nilfs_palloc_get_block+0xc4/0x2b0 [ 37.859890] nilfs_palloc_get_entry_block+0x17b/0x230 [ 37.865097] ? nilfs_iget+0x1cf/0x860 [ 37.868879] nilfs_ifile_get_inode_block+0xbf/0x170 [ 37.873873] nilfs_iget+0x204/0x860 [ 37.877478] ? nilfs_iget_locked+0xd0/0xd0 [ 37.881692] ? nilfs_attach_log_writer+0x68b/0xa30 [ 37.886607] ? wait_woken+0x250/0x250 [ 37.890385] ? nilfs_mount+0x9df/0xe70 [ 37.894260] nilfs_get_root_dentry+0x26/0x250 [ 37.898775] nilfs_mount+0xac8/0xe70 [ 37.902466] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 37.907374] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 37.912366] ? pcpu_alloc+0xc9/0x1190 [ 37.916145] ? alloc_pages_current+0x19b/0x2a0 [ 37.920708] mount_fs+0xa3/0x310 [ 37.924057] vfs_kern_mount.part.0+0x68/0x470 [ 37.928531] do_mount+0x115c/0x2f50 [ 37.932139] ? do_raw_spin_unlock+0x171/0x230 [ 37.936616] ? check_preemption_disabled+0x41/0x280 [ 37.941626] ? copy_mount_string+0x40/0x40 [ 37.945839] ? copy_mount_options+0x59/0x380 [ 37.950226] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 37.955220] ? kmem_cache_alloc_trace+0x323/0x380 [ 37.960041] ? copy_mount_options+0x26f/0x380 [ 37.964515] ksys_mount+0xcf/0x130 [ 37.968036] __x64_sys_mount+0xba/0x150 [ 37.971988] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 37.976547] do_syscall_64+0xf9/0x620 [ 37.980327] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.985606] RIP: 0033:0x7fadc329049a [ 37.989306] 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 [ 38.008184] RSP: 002b:00007fff282aae78 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 38.015870] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fadc329049a [ 38.023117] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fff282aae90 [ 38.030364] RBP: 00007fff282aae90 R08: 00007fff282aaed0 R09: 00005555564c82c0 [ 38.037612] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004 [ 38.044859] R13: 00007fff282aaed0 R14: 0000000000000039 R15: 0000000020000758 [ 38.052110] Modules linked in: [ 38.055606] ---[ end trace 181c096b1f13bd18 ]--- [ 38.060703] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 38.066419] 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 [ 38.085495] RSP: 0018:ffff8880a2217650 EFLAGS: 00010246 [ 38.090954] RAX: 0000000000000000 RBX: ffff88808a419098 RCX: 0000000000000000 [ 38.098301] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808a419158 [ 38.105600] RBP: ffff8880a2217738 R08: 0000000000000001 R09: 0000000000000000 [ 38.112964] R10: 0000000000000005 R11: ffffffff8c66501b R12: 0000000000000002 [ 38.120276] R13: 1ffff11014442ecb R14: ffff88808a4190d0 R15: 0000000000000001 [ 38.127548] FS: 00005555564c8300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 38.135925] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 38.141877] CR2: 000055604c1a7848 CR3: 00000000aa8a3000 CR4: 00000000003406f0 [ 38.149141] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 38.156622] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 38.163966] Kernel panic - not syncing: Fatal exception [ 38.169492] Kernel Offset: disabled [ 38.173104] Rebooting in 86400 seconds..