[ 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 '10.128.0.85' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 43.735162] INFO: trying to register non-static key. [ 43.740278] The code is fine but needs lockdep annotation, or maybe [ 43.746062] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 43.746665] you didn't initialize this object before use? [ 43.746669] turning off the locking correctness validator. [ 43.746682] CPU: 0 PID: 8091 Comm: syz-executor136 Not tainted 4.19.211-syzkaller #0 [ 43.746687] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 43.746695] Call Trace: [ 43.787300] dump_stack+0x1fc/0x2ef [ 43.790905] register_lock_class+0xe82/0x11c0 [ 43.795377] ? static_obj+0x50/0x50 [ 43.798989] __lock_acquire+0x17d/0x3ff0 [ 43.803034] ? __lock_acquire+0x6de/0x3ff0 [ 43.807252] ? mark_held_locks+0xf0/0xf0 [ 43.811297] ? mark_held_locks+0xf0/0xf0 [ 43.815336] ? lock_downgrade+0x720/0x720 [ 43.819460] ? lock_acquire+0x170/0x3c0 [ 43.823424] ? get_mem_cgroup_from_page+0x7a/0x3b0 [ 43.828337] ? check_preemption_disabled+0x41/0x280 [ 43.833334] ? check_preemption_disabled+0x41/0x280 [ 43.838327] ? alloc_buffer_head+0x20/0x130 [ 43.842625] lock_acquire+0x170/0x3c0 [ 43.846402] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 43.851490] down_read+0x36/0x80 [ 43.854833] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 43.859909] nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 43.864815] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 43.869117] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 43.874803] ? save_trace+0xd6/0x290 [ 43.878494] ? nilfs_mdt_write_page+0x280/0x280 [ 43.883144] nilfs_mdt_read_block+0x96/0x3e0 [ 43.887542] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 43.893499] ? mark_held_locks+0xf0/0xf0 [ 43.897541] nilfs_mdt_get_block+0xe6/0xd40 [ 43.901849] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 43.906505] ? lock_downgrade+0x720/0x720 [ 43.910635] ? lock_acquire+0x170/0x3c0 [ 43.914589] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 43.919322] nilfs_palloc_get_block+0xc4/0x2b0 [ 43.923883] nilfs_palloc_get_entry_block+0x17b/0x230 [ 43.929050] ? nilfs_iget+0x1cf/0x860 [ 43.932834] nilfs_ifile_get_inode_block+0xbf/0x170 [ 43.937828] nilfs_iget+0x204/0x860 [ 43.941435] ? nilfs_iget_locked+0xd0/0xd0 [ 43.945652] ? nilfs_attach_log_writer+0x68b/0xa30 [ 43.950557] ? wait_woken+0x250/0x250 [ 43.954339] ? nilfs_mount+0x9df/0xe70 [ 43.958218] nilfs_get_root_dentry+0x26/0x250 [ 43.963158] nilfs_mount+0xac8/0xe70 [ 43.966856] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 43.971941] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 43.976940] ? pcpu_alloc+0xc9/0x1190 [ 43.980726] ? alloc_pages_current+0x19b/0x2a0 [ 43.985286] mount_fs+0xa3/0x310 [ 43.988634] vfs_kern_mount.part.0+0x68/0x470 [ 43.993107] do_mount+0x115c/0x2f50 [ 43.996714] ? lock_acquire+0x170/0x3c0 [ 44.000668] ? check_preemption_disabled+0x41/0x280 [ 44.005665] ? copy_mount_string+0x40/0x40 [ 44.009878] ? copy_mount_options+0x59/0x380 [ 44.014263] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 44.019257] ? kmem_cache_alloc_trace+0x323/0x380 [ 44.024091] ? copy_mount_options+0x26f/0x380 [ 44.028568] ksys_mount+0xcf/0x130 [ 44.032090] __x64_sys_mount+0xba/0x150 [ 44.036048] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 44.040607] do_syscall_64+0xf9/0x620 [ 44.044390] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 44.049556] RIP: 0033:0x7f70a9e91fca [ 44.053267] 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 [ 44.072147] RSP: 002b:00007ffd4c4ab9a8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 44.079931] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f70a9e91fca [ 44.087180] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffd4c4ab9c0 [ 44.094428] RBP: 00007ffd4c4ab9c0 R08: 00007ffd4c4aba00 R09: 00005555567462c0 [ 44.101675] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004 [ 44.108922] R13: 00007ffd4c4aba00 R14: 000000000000005b R15: 0000000020000a88 [ 44.116648] kasan: CONFIG_KASAN_INLINE enabled [ 44.121229] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 44.128831] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 44.135063] CPU: 0 PID: 8091 Comm: syz-executor136 Not tainted 4.19.211-syzkaller #0 [ 44.142927] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 44.152267] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 44.157975] 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 [ 44.176855] RSP: 0018:ffff888094c4f650 EFLAGS: 00010246 [ 44.182194] RAX: 0000000000000000 RBX: ffff88808ac28098 RCX: 0000000000000000 [ 44.189440] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808ac28158 [ 44.196686] RBP: ffff888094c4f738 R08: 0000000000000001 R09: 0000000000000000 [ 44.203950] R10: 0000000000000005 R11: ffffffff8c66501b R12: 0000000000000002 [ 44.211196] R13: 1ffff11012989ecb R14: ffff88808ac280d0 R15: 0000000000000001 [ 44.218447] FS: 0000555556746300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 44.226677] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.232536] CR2: 000055c41838c848 CR3: 000000009e5d3000 CR4: 00000000003406f0 [ 44.239786] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 44.247033] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 44.254281] Call Trace: [ 44.256853] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 44.261160] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 44.266848] ? save_trace+0xd6/0x290 [ 44.270541] ? nilfs_mdt_write_page+0x280/0x280 [ 44.275193] nilfs_mdt_read_block+0x96/0x3e0 [ 44.279605] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 44.285465] ? mark_held_locks+0xf0/0xf0 [ 44.289516] nilfs_mdt_get_block+0xe6/0xd40 [ 44.293820] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 44.298467] ? lock_downgrade+0x720/0x720 [ 44.302593] ? lock_acquire+0x170/0x3c0 [ 44.306543] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 44.311278] nilfs_palloc_get_block+0xc4/0x2b0 [ 44.315837] nilfs_palloc_get_entry_block+0x17b/0x230 [ 44.321008] ? nilfs_iget+0x1cf/0x860 [ 44.324786] nilfs_ifile_get_inode_block+0xbf/0x170 [ 44.329779] nilfs_iget+0x204/0x860 [ 44.333386] ? nilfs_iget_locked+0xd0/0xd0 [ 44.337598] ? nilfs_attach_log_writer+0x68b/0xa30 [ 44.342508] ? wait_woken+0x250/0x250 [ 44.346286] ? nilfs_mount+0x9df/0xe70 [ 44.350151] nilfs_get_root_dentry+0x26/0x250 [ 44.354622] nilfs_mount+0xac8/0xe70 [ 44.358313] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 44.363222] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 44.368214] ? pcpu_alloc+0xc9/0x1190 [ 44.371994] ? alloc_pages_current+0x19b/0x2a0 [ 44.376552] mount_fs+0xa3/0x310 [ 44.379898] vfs_kern_mount.part.0+0x68/0x470 [ 44.384372] do_mount+0x115c/0x2f50 [ 44.387979] ? lock_acquire+0x170/0x3c0 [ 44.391932] ? check_preemption_disabled+0x41/0x280 [ 44.396927] ? copy_mount_string+0x40/0x40 [ 44.401139] ? copy_mount_options+0x59/0x380 [ 44.405527] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 44.410525] ? kmem_cache_alloc_trace+0x323/0x380 [ 44.415349] ? copy_mount_options+0x26f/0x380 [ 44.419934] ksys_mount+0xcf/0x130 [ 44.423451] __x64_sys_mount+0xba/0x150 [ 44.427406] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 44.431965] do_syscall_64+0xf9/0x620 [ 44.435747] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 44.440913] RIP: 0033:0x7f70a9e91fca [ 44.444607] 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 [ 44.463484] RSP: 002b:00007ffd4c4ab9a8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 44.471181] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f70a9e91fca [ 44.478428] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffd4c4ab9c0 [ 44.485673] RBP: 00007ffd4c4ab9c0 R08: 00007ffd4c4aba00 R09: 00005555567462c0 [ 44.492919] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004 [ 44.500166] R13: 00007ffd4c4aba00 R14: 000000000000005b R15: 0000000020000a88 [ 44.507416] Modules linked in: [ 44.510683] ---[ end trace 69bafd03182f7168 ]--- [ 44.515446] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 44.521355] 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 [ 44.540296] RSP: 0018:ffff888094c4f650 EFLAGS: 00010246 [ 44.545656] RAX: 0000000000000000 RBX: ffff88808ac28098 RCX: 0000000000000000 [ 44.552972] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808ac28158 [ 44.560280] RBP: ffff888094c4f738 R08: 0000000000000001 R09: 0000000000000000 [ 44.567586] R10: 0000000000000005 R11: ffffffff8c66501b R12: 0000000000000002 [ 44.574842] R13: 1ffff11012989ecb R14: ffff88808ac280d0 R15: 0000000000000001 [ 44.582141] FS: 0000555556746300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 44.590405] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.596312] CR2: 000055c41838c848 CR3: 000000009e5d3000 CR4: 00000000003406f0 [ 44.603572] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 44.610882] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 44.618201] Kernel panic - not syncing: Fatal exception [ 44.623610] Kernel Offset: disabled [ 44.627218] Rebooting in 86400 seconds..