[ 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 '10.128.10.16' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 40.872928] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 40.885101] INFO: trying to register non-static key. [ 40.890223] The code is fine but needs lockdep annotation, or maybe [ 40.896615] you didn't initialize this object before use? [ 40.902187] turning off the locking correctness validator. [ 40.907802] CPU: 0 PID: 8123 Comm: syz-executor206 Not tainted 4.19.211-syzkaller #0 [ 40.915658] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 40.924989] Call Trace: [ 40.927566] dump_stack+0x1fc/0x2ef [ 40.931174] register_lock_class+0xe82/0x11c0 [ 40.935646] ? static_obj+0x50/0x50 [ 40.939251] __lock_acquire+0x17d/0x3ff0 [ 40.943291] ? __lock_acquire+0x6de/0x3ff0 [ 40.947507] ? cache_alloc_refill+0x2f8/0x340 [ 40.951986] ? mark_held_locks+0xf0/0xf0 [ 40.956026] ? mark_held_locks+0xf0/0xf0 [ 40.960079] ? lock_downgrade+0x720/0x720 [ 40.964219] ? do_raw_spin_lock+0xcb/0x220 [ 40.968434] ? check_preemption_disabled+0x41/0x280 [ 40.973431] ? alloc_buffer_head+0x20/0x130 [ 40.977736] lock_acquire+0x170/0x3c0 [ 40.981516] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 40.986777] down_read+0x36/0x80 [ 40.990130] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 40.995210] nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 41.000119] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 41.004427] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 41.010116] ? save_trace+0xd6/0x290 [ 41.013816] ? nilfs_mdt_write_page+0x280/0x280 [ 41.018467] nilfs_mdt_read_block+0x96/0x3e0 [ 41.023040] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 41.028904] ? mark_held_locks+0xf0/0xf0 [ 41.032946] nilfs_mdt_get_block+0xe6/0xd40 [ 41.037250] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 41.041893] ? lock_downgrade+0x720/0x720 [ 41.046017] ? lock_acquire+0x170/0x3c0 [ 41.049966] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 41.054698] nilfs_palloc_get_block+0xc4/0x2b0 [ 41.059268] nilfs_palloc_get_entry_block+0x17b/0x230 [ 41.064434] ? nilfs_iget+0x1cf/0x860 [ 41.068210] nilfs_ifile_get_inode_block+0xbf/0x170 [ 41.073203] nilfs_iget+0x204/0x860 [ 41.076810] ? nilfs_iget_locked+0xd0/0xd0 [ 41.081021] ? nilfs_attach_log_writer+0x68b/0xa30 [ 41.085927] ? wait_woken+0x250/0x250 [ 41.089708] nilfs_get_root_dentry+0x26/0x250 [ 41.094188] nilfs_mount+0xac8/0xe70 [ 41.097878] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 41.102785] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 41.107776] ? pcpu_alloc+0xc9/0x1190 [ 41.111554] ? alloc_pages_current+0x19b/0x2a0 [ 41.116118] mount_fs+0xa3/0x310 [ 41.119464] vfs_kern_mount.part.0+0x68/0x470 [ 41.123937] do_mount+0x115c/0x2f50 [ 41.127811] ? cmp_ex_sort+0xc0/0xc0 [ 41.131503] ? __do_page_fault+0x180/0xd60 [ 41.135713] ? copy_mount_string+0x40/0x40 [ 41.139928] ? copy_mount_options+0x1cd/0x380 [ 41.144399] ? memset+0x20/0x40 [ 41.147654] ? copy_mount_options+0x26f/0x380 [ 41.152217] ksys_mount+0xcf/0x130 [ 41.155843] __x64_sys_mount+0xba/0x150 [ 41.159812] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 41.164459] do_syscall_64+0xf9/0x620 [ 41.168248] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 41.173415] RIP: 0033:0x7f4ea85a366a [ 41.177106] 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 [ 41.195990] RSP: 002b:00007ffffddf99f8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 41.203676] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f4ea85a366a [ 41.210921] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffffddf9a10 [ 41.218168] RBP: 00007ffffddf9a10 R08: 00007ffffddf9a50 R09: 00005555566362c0 [ 41.225412] R10: 0000000001000010 R11: 0000000000000286 R12: 0000000000000004 [ 41.232665] R13: 00007ffffddf9a50 R14: 000000000000003b R15: 0000000020000788 [ 41.240223] kasan: CONFIG_KASAN_INLINE enabled [ 41.244806] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 41.252301] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 41.258533] CPU: 0 PID: 8123 Comm: syz-executor206 Not tainted 4.19.211-syzkaller #0 [ 41.266407] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 41.275744] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 41.281434] 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 [ 41.300312] RSP: 0018:ffff88809227f650 EFLAGS: 00010246 [ 41.305664] RAX: 0000000000000000 RBX: ffff88808b483098 RCX: 0000000000000000 [ 41.312913] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808b483158 [ 41.320164] RBP: ffff88809227f738 R08: 0000000000000001 R09: 0000000000000000 [ 41.327410] R10: 0000000000000005 R11: ffffffff8c66501b R12: 0000000000000002 [ 41.334656] R13: 1ffff1101244fecb R14: ffff88808b4830d0 R15: 0000000000000001 [ 41.341992] FS: 0000555556636300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 41.350283] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.356140] CR2: 00007ffc6d9edc20 CR3: 00000000abf07000 CR4: 00000000003406f0 [ 41.363394] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.370642] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.377909] Call Trace: [ 41.380480] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 41.384787] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 41.390480] ? save_trace+0xd6/0x290 [ 41.394175] ? nilfs_mdt_write_page+0x280/0x280 [ 41.398828] nilfs_mdt_read_block+0x96/0x3e0 [ 41.403219] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 41.409080] ? mark_held_locks+0xf0/0xf0 [ 41.413119] nilfs_mdt_get_block+0xe6/0xd40 [ 41.417426] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 41.422073] ? lock_downgrade+0x720/0x720 [ 41.426198] ? lock_acquire+0x170/0x3c0 [ 41.430153] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 41.434888] nilfs_palloc_get_block+0xc4/0x2b0 [ 41.439449] nilfs_palloc_get_entry_block+0x17b/0x230 [ 41.444623] ? nilfs_iget+0x1cf/0x860 [ 41.448401] nilfs_ifile_get_inode_block+0xbf/0x170 [ 41.453421] nilfs_iget+0x204/0x860 [ 41.457041] ? nilfs_iget_locked+0xd0/0xd0 [ 41.461253] ? nilfs_attach_log_writer+0x68b/0xa30 [ 41.466168] ? wait_woken+0x250/0x250 [ 41.469947] nilfs_get_root_dentry+0x26/0x250 [ 41.474422] nilfs_mount+0xac8/0xe70 [ 41.478113] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 41.483022] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 41.488026] ? pcpu_alloc+0xc9/0x1190 [ 41.491932] ? alloc_pages_current+0x19b/0x2a0 [ 41.496512] mount_fs+0xa3/0x310 [ 41.499864] vfs_kern_mount.part.0+0x68/0x470 [ 41.504343] do_mount+0x115c/0x2f50 [ 41.507954] ? cmp_ex_sort+0xc0/0xc0 [ 41.511647] ? __do_page_fault+0x180/0xd60 [ 41.515858] ? copy_mount_string+0x40/0x40 [ 41.520071] ? copy_mount_options+0x1cd/0x380 [ 41.524552] ? memset+0x20/0x40 [ 41.527913] ? copy_mount_options+0x26f/0x380 [ 41.532389] ksys_mount+0xcf/0x130 [ 41.535913] __x64_sys_mount+0xba/0x150 [ 41.539867] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 41.544430] do_syscall_64+0xf9/0x620 [ 41.548212] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 41.553378] RIP: 0033:0x7f4ea85a366a [ 41.557078] 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 [ 41.575960] RSP: 002b:00007ffffddf99f8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 41.583651] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f4ea85a366a [ 41.590897] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffffddf9a10 [ 41.598142] RBP: 00007ffffddf9a10 R08: 00007ffffddf9a50 R09: 00005555566362c0 [ 41.605386] R10: 0000000001000010 R11: 0000000000000286 R12: 0000000000000004 [ 41.612637] R13: 00007ffffddf9a50 R14: 000000000000003b R15: 0000000020000788 [ 41.619887] Modules linked in: [ 41.623132] ---[ end trace 1bef4c56e019b0c4 ]--- [ 41.627898] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 41.633841] 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 [ 41.652981] RSP: 0018:ffff88809227f650 EFLAGS: 00010246 [ 41.658337] RAX: 0000000000000000 RBX: ffff88808b483098 RCX: 0000000000000000 [ 41.665655] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808b483158 [ 41.672971] RBP: ffff88809227f738 R08: 0000000000000001 R09: 0000000000000000 [ 41.680296] R10: 0000000000000005 R11: ffffffff8c66501b R12: 0000000000000002 [ 41.687554] R13: 1ffff1101244fecb R14: ffff88808b4830d0 R15: 0000000000000001 [ 41.694855] FS: 0000555556636300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 41.703122] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.708997] CR2: 00007ffc6d9edc20 CR3: 00000000abf07000 CR4: 00000000003406f0 [ 41.716306] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.723718] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.731375] Kernel panic - not syncing: Fatal exception [ 41.736892] Kernel Offset: disabled [ 41.740527] Rebooting in 86400 seconds..