[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.18' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 43.312717] INFO: trying to register non-static key. [ 43.317847] The code is fine but needs lockdep annotation, or maybe [ 43.323108] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 43.324237] you didn't initialize this object before use? [ 43.324240] turning off the locking correctness validator. [ 43.324252] CPU: 0 PID: 8117 Comm: syz-executor243 Not tainted 4.19.211-syzkaller #0 [ 43.324258] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 43.324261] Call Trace: [ 43.324278] dump_stack+0x1fc/0x2ef [ 43.324291] register_lock_class+0xe82/0x11c0 [ 43.324306] ? static_obj+0x50/0x50 [ 43.376610] __lock_acquire+0x17d/0x3ff0 [ 43.380653] ? __lock_acquire+0x6de/0x3ff0 [ 43.384866] ? cache_alloc_refill+0x2f8/0x340 [ 43.389343] ? mark_held_locks+0xf0/0xf0 [ 43.393388] ? mark_held_locks+0xf0/0xf0 [ 43.397427] ? lock_downgrade+0x720/0x720 [ 43.401569] ? do_raw_spin_lock+0xcb/0x220 [ 43.405783] ? check_preemption_disabled+0x41/0x280 [ 43.410789] ? alloc_buffer_head+0x20/0x130 [ 43.415093] lock_acquire+0x170/0x3c0 [ 43.418878] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 43.423959] down_read+0x36/0x80 [ 43.427304] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 43.432411] nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 43.437346] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 43.441649] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 43.447340] ? save_trace+0xd6/0x290 [ 43.451033] ? nilfs_mdt_write_page+0x280/0x280 [ 43.455689] nilfs_mdt_read_block+0x96/0x3e0 [ 43.460081] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 43.465955] ? mark_held_locks+0xf0/0xf0 [ 43.470014] nilfs_mdt_get_block+0xe6/0xd40 [ 43.474321] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 43.478970] ? lock_downgrade+0x720/0x720 [ 43.483146] ? lock_acquire+0x170/0x3c0 [ 43.487097] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 43.491837] nilfs_palloc_get_block+0xc4/0x2b0 [ 43.496401] nilfs_palloc_get_entry_block+0x17b/0x230 [ 43.501567] ? nilfs_iget+0x1cf/0x860 [ 43.505344] nilfs_ifile_get_inode_block+0xbf/0x170 [ 43.510338] nilfs_iget+0x204/0x860 [ 43.513941] ? nilfs_iget_locked+0xd0/0xd0 [ 43.518156] ? nilfs_attach_log_writer+0x68b/0xa30 [ 43.523061] ? wait_woken+0x250/0x250 [ 43.526838] ? nilfs_mount+0x9df/0xe70 [ 43.530707] nilfs_get_root_dentry+0x26/0x250 [ 43.535182] nilfs_mount+0xac8/0xe70 [ 43.538874] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 43.543781] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 43.548773] ? pcpu_alloc+0xc9/0x1190 [ 43.552551] ? alloc_pages_current+0x19b/0x2a0 [ 43.557116] mount_fs+0xa3/0x310 [ 43.560463] vfs_kern_mount.part.0+0x68/0x470 [ 43.564933] do_mount+0x115c/0x2f50 [ 43.568537] ? cmp_ex_sort+0xc0/0xc0 [ 43.572232] ? __do_page_fault+0x180/0xd60 [ 43.576443] ? copy_mount_string+0x40/0x40 [ 43.580654] ? copy_mount_options+0x1cd/0x380 [ 43.585126] ? memset+0x20/0x40 [ 43.588391] ? copy_mount_options+0x26f/0x380 [ 43.592861] ksys_mount+0xcf/0x130 [ 43.596377] __x64_sys_mount+0xba/0x150 [ 43.600331] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 43.604890] do_syscall_64+0xf9/0x620 [ 43.608670] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 43.613836] RIP: 0033:0x7f9d2ace961a [ 43.617528] 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 [ 43.636412] RSP: 002b:00007ffe757ba3f8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 43.644114] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f9d2ace961a [ 43.651374] RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007ffe757ba410 [ 43.658642] RBP: 00007ffe757ba410 R08: 00007ffe757ba450 R09: 0000555556e2f2c0 [ 43.665894] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004 [ 43.673143] R13: 00007ffe757ba450 R14: 0000000000000039 R15: 0000000020000758 [ 43.680875] kasan: CONFIG_KASAN_INLINE enabled [ 43.685478] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 43.692841] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 43.699068] CPU: 0 PID: 8117 Comm: syz-executor243 Not tainted 4.19.211-syzkaller #0 [ 43.706934] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 43.716292] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 43.721983] 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 [ 43.740868] RSP: 0018:ffff8880a1557650 EFLAGS: 00010246 [ 43.746211] RAX: 0000000000000000 RBX: ffff88808d7da098 RCX: 0000000000000000 [ 43.753462] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808d7da158 [ 43.760732] RBP: ffff8880a1557738 R08: 0000000000000001 R09: 0000000000000000 [ 43.768004] R10: 0000000000000005 R11: ffffffff8c66501b R12: 0000000000000002 [ 43.775257] R13: 1ffff110142aaecb R14: ffff88808d7da0d0 R15: 0000000000000001 [ 43.782507] FS: 0000555556e2f300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 43.790711] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.796572] CR2: 00007ffe757bb000 CR3: 000000009b09e000 CR4: 00000000003406f0 [ 43.803832] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 43.811100] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 43.818363] Call Trace: [ 43.820936] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 43.825241] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 43.830948] ? save_trace+0xd6/0x290 [ 43.834640] ? nilfs_mdt_write_page+0x280/0x280 [ 43.839317] nilfs_mdt_read_block+0x96/0x3e0 [ 43.843707] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 43.849569] ? mark_held_locks+0xf0/0xf0 [ 43.853614] nilfs_mdt_get_block+0xe6/0xd40 [ 43.857917] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 43.862564] ? lock_downgrade+0x720/0x720 [ 43.866689] ? lock_acquire+0x170/0x3c0 [ 43.870640] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 43.875381] nilfs_palloc_get_block+0xc4/0x2b0 [ 43.879976] nilfs_palloc_get_entry_block+0x17b/0x230 [ 43.885161] ? nilfs_iget+0x1cf/0x860 [ 43.888945] nilfs_ifile_get_inode_block+0xbf/0x170 [ 43.893943] nilfs_iget+0x204/0x860 [ 43.897556] ? nilfs_iget_locked+0xd0/0xd0 [ 43.901770] ? nilfs_attach_log_writer+0x68b/0xa30 [ 43.906681] ? wait_woken+0x250/0x250 [ 43.910466] ? nilfs_mount+0x9df/0xe70 [ 43.914357] nilfs_get_root_dentry+0x26/0x250 [ 43.918835] nilfs_mount+0xac8/0xe70 [ 43.922528] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 43.927437] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 43.932432] ? pcpu_alloc+0xc9/0x1190 [ 43.936213] ? alloc_pages_current+0x19b/0x2a0 [ 43.940772] mount_fs+0xa3/0x310 [ 43.944118] vfs_kern_mount.part.0+0x68/0x470 [ 43.948607] do_mount+0x115c/0x2f50 [ 43.952212] ? cmp_ex_sort+0xc0/0xc0 [ 43.955906] ? __do_page_fault+0x180/0xd60 [ 43.960118] ? copy_mount_string+0x40/0x40 [ 43.964331] ? copy_mount_options+0x1cd/0x380 [ 43.968804] ? memset+0x20/0x40 [ 43.972061] ? copy_mount_options+0x26f/0x380 [ 43.976533] ksys_mount+0xcf/0x130 [ 43.980051] __x64_sys_mount+0xba/0x150 [ 43.984011] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 43.988577] do_syscall_64+0xf9/0x620 [ 43.992361] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 43.997528] RIP: 0033:0x7f9d2ace961a [ 44.001222] 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 [ 44.020101] RSP: 002b:00007ffe757ba3f8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 44.027783] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f9d2ace961a [ 44.035031] RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007ffe757ba410 [ 44.043406] RBP: 00007ffe757ba410 R08: 00007ffe757ba450 R09: 0000555556e2f2c0 [ 44.050651] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004 [ 44.057897] R13: 00007ffe757ba450 R14: 0000000000000039 R15: 0000000020000758 [ 44.065154] Modules linked in: [ 44.068853] ---[ end trace 765823bef35dc4e0 ]--- [ 44.073621] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 44.079382] 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 [ 44.098385] RSP: 0018:ffff8880a1557650 EFLAGS: 00010246 [ 44.103736] RAX: 0000000000000000 RBX: ffff88808d7da098 RCX: 0000000000000000 [ 44.111031] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808d7da158 [ 44.118365] RBP: ffff8880a1557738 R08: 0000000000000001 R09: 0000000000000000 [ 44.125661] R10: 0000000000000005 R11: ffffffff8c66501b R12: 0000000000000002 [ 44.132927] R13: 1ffff110142aaecb R14: ffff88808d7da0d0 R15: 0000000000000001 [ 44.140235] FS: 0000555556e2f300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 44.148499] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.154418] CR2: 00007ffe757bb000 CR3: 000000009b09e000 CR4: 00000000003406f0 [ 44.161684] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 44.168973] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 44.176276] Kernel panic - not syncing: Fatal exception [ 44.181785] Kernel Offset: disabled [ 44.185392] Rebooting in 86400 seconds..