[ 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 '10.128.0.79' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 35.083179] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 35.090323] INFO: trying to register non-static key. [ 35.098061] The code is fine but needs lockdep annotation, or maybe [ 35.104437] you didn't initialize this object before use? [ 35.109945] turning off the locking correctness validator. [ 35.115548] CPU: 0 PID: 8085 Comm: syz-executor107 Not tainted 4.19.211-syzkaller #0 [ 35.123400] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 35.132726] Call Trace: [ 35.135292] dump_stack+0x1fc/0x2ef [ 35.138896] register_lock_class+0xe82/0x11c0 [ 35.143366] ? static_obj+0x50/0x50 [ 35.146969] __lock_acquire+0x17d/0x3ff0 [ 35.151008] ? __lock_acquire+0x6de/0x3ff0 [ 35.155219] ? cache_alloc_refill+0x2f8/0x340 [ 35.159688] ? mark_held_locks+0xf0/0xf0 [ 35.163725] ? mark_held_locks+0xf0/0xf0 [ 35.167766] ? lock_downgrade+0x720/0x720 [ 35.171886] ? do_raw_spin_lock+0xcb/0x220 [ 35.176099] ? check_preemption_disabled+0x41/0x280 [ 35.181091] ? alloc_buffer_head+0x20/0x130 [ 35.185395] lock_acquire+0x170/0x3c0 [ 35.189171] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 35.194251] down_read+0x36/0x80 [ 35.197592] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 35.202668] nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 35.207572] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 35.211870] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 35.217575] ? save_trace+0xd6/0x290 [ 35.221264] ? nilfs_mdt_write_page+0x280/0x280 [ 35.225913] nilfs_mdt_read_block+0x96/0x3e0 [ 35.230299] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 35.236159] ? mark_held_locks+0xf0/0xf0 [ 35.240199] nilfs_mdt_get_block+0xe6/0xd40 [ 35.244911] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 35.249555] ? lock_downgrade+0x720/0x720 [ 35.253677] ? lock_acquire+0x170/0x3c0 [ 35.257741] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 35.262479] nilfs_palloc_get_block+0xc4/0x2b0 [ 35.267036] nilfs_palloc_get_entry_block+0x17b/0x230 [ 35.272202] ? nilfs_iget+0x1cf/0x860 [ 35.275977] nilfs_ifile_get_inode_block+0xbf/0x170 [ 35.280967] nilfs_iget+0x204/0x860 [ 35.284570] ? nilfs_iget_locked+0xd0/0xd0 [ 35.288784] ? nilfs_attach_log_writer+0x68b/0xa30 [ 35.293689] ? wait_woken+0x250/0x250 [ 35.297465] nilfs_get_root_dentry+0x26/0x250 [ 35.301934] nilfs_mount+0xac8/0xe70 [ 35.305625] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 35.310529] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 35.315521] ? pcpu_alloc+0xc9/0x1190 [ 35.319314] ? alloc_pages_current+0x19b/0x2a0 [ 35.323873] mount_fs+0xa3/0x310 [ 35.327218] vfs_kern_mount.part.0+0x68/0x470 [ 35.331689] do_mount+0x115c/0x2f50 [ 35.335294] ? __do_page_fault+0x180/0xd60 [ 35.339506] ? copy_mount_string+0x40/0x40 [ 35.343720] ? copy_mount_options+0x1cd/0x380 [ 35.348195] ? copy_mount_options+0x1da/0x380 [ 35.352665] ? copy_mount_options+0x1e9/0x380 [ 35.357136] ? copy_mount_options+0x26f/0x380 [ 35.361609] ksys_mount+0xcf/0x130 [ 35.365126] __x64_sys_mount+0xba/0x150 [ 35.369079] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 35.373635] do_syscall_64+0xf9/0x620 [ 35.377413] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.382580] RIP: 0033:0x7f103ae9e67a [ 35.386271] 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 [ 35.405148] RSP: 002b:00007fffa6a06a28 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 35.412829] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f103ae9e67a [ 35.420071] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fffa6a06a40 [ 35.427317] RBP: 00007fffa6a06a40 R08: 00007fffa6a06a80 R09: 0000555556e7d2c0 [ 35.434561] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004 [ 35.441804] R13: 00007fffa6a06a80 R14: 000000000000003b R15: 0000000020000788 [ 35.449193] kasan: CONFIG_KASAN_INLINE enabled [ 35.453767] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 35.461337] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 35.467572] CPU: 0 PID: 8085 Comm: syz-executor107 Not tainted 4.19.211-syzkaller #0 [ 35.475435] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 35.484771] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 35.490458] 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 [ 35.509333] RSP: 0018:ffff8880b361f650 EFLAGS: 00010246 [ 35.514671] RAX: 0000000000000000 RBX: ffff88808dba3098 RCX: 0000000000000000 [ 35.521920] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808dba3158 [ 35.529165] RBP: ffff8880b361f738 R08: 0000000000000001 R09: 0000000000000000 [ 35.536409] R10: 0000000000000005 R11: ffffffff8c66501b R12: 0000000000000002 [ 35.543654] R13: 1ffff110166c3ecb R14: ffff88808dba30d0 R15: 0000000000000001 [ 35.550901] FS: 0000555556e7d300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 35.559102] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.564965] CR2: 000055f7552dfcc0 CR3: 00000000a534d000 CR4: 00000000003406f0 [ 35.572221] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.579473] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.586720] Call Trace: [ 35.589288] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 35.593590] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 35.599285] ? save_trace+0xd6/0x290 [ 35.602975] ? nilfs_mdt_write_page+0x280/0x280 [ 35.607629] nilfs_mdt_read_block+0x96/0x3e0 [ 35.612017] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 35.617880] ? mark_held_locks+0xf0/0xf0 [ 35.621935] nilfs_mdt_get_block+0xe6/0xd40 [ 35.626255] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 35.630901] ? lock_downgrade+0x720/0x720 [ 35.635028] ? lock_acquire+0x170/0x3c0 [ 35.638981] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 35.643717] nilfs_palloc_get_block+0xc4/0x2b0 [ 35.648278] nilfs_palloc_get_entry_block+0x17b/0x230 [ 35.653445] ? nilfs_iget+0x1cf/0x860 [ 35.657221] nilfs_ifile_get_inode_block+0xbf/0x170 [ 35.662229] nilfs_iget+0x204/0x860 [ 35.665846] ? nilfs_iget_locked+0xd0/0xd0 [ 35.670057] ? nilfs_attach_log_writer+0x68b/0xa30 [ 35.674963] ? wait_woken+0x250/0x250 [ 35.678743] nilfs_get_root_dentry+0x26/0x250 [ 35.683218] nilfs_mount+0xac8/0xe70 [ 35.686911] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 35.691818] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 35.696812] ? pcpu_alloc+0xc9/0x1190 [ 35.700590] ? alloc_pages_current+0x19b/0x2a0 [ 35.705146] mount_fs+0xa3/0x310 [ 35.708492] vfs_kern_mount.part.0+0x68/0x470 [ 35.712964] do_mount+0x115c/0x2f50 [ 35.716569] ? __do_page_fault+0x180/0xd60 [ 35.720816] ? copy_mount_string+0x40/0x40 [ 35.725030] ? copy_mount_options+0x1cd/0x380 [ 35.729500] ? copy_mount_options+0x1da/0x380 [ 35.733971] ? copy_mount_options+0x1e9/0x380 [ 35.738443] ? copy_mount_options+0x26f/0x380 [ 35.742916] ksys_mount+0xcf/0x130 [ 35.746431] __x64_sys_mount+0xba/0x150 [ 35.750387] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 35.754943] do_syscall_64+0xf9/0x620 [ 35.758731] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.763902] RIP: 0033:0x7f103ae9e67a [ 35.767593] 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 [ 35.786468] RSP: 002b:00007fffa6a06a28 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 35.794156] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f103ae9e67a [ 35.801404] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fffa6a06a40 [ 35.808651] RBP: 00007fffa6a06a40 R08: 00007fffa6a06a80 R09: 0000555556e7d2c0 [ 35.815903] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004 [ 35.823148] R13: 00007fffa6a06a80 R14: 000000000000003b R15: 0000000020000788 [ 35.830397] Modules linked in: [ 35.833651] ---[ end trace 2f7d2e1413520606 ]--- [ 35.839666] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 35.845377] 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 [ 35.864342] RSP: 0018:ffff8880b361f650 EFLAGS: 00010246 [ 35.869739] RAX: 0000000000000000 RBX: ffff88808dba3098 RCX: 0000000000000000 [ 35.877030] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808dba3158 [ 35.884290] RBP: ffff8880b361f738 R08: 0000000000000001 R09: 0000000000000000 [ 35.891577] R10: 0000000000000005 R11: ffffffff8c66501b R12: 0000000000000002 [ 35.898922] R13: 1ffff110166c3ecb R14: ffff88808dba30d0 R15: 0000000000000001 [ 35.906175] FS: 0000555556e7d300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 35.914411] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.920324] CR2: 000055f7552dfcc0 CR3: 00000000a534d000 CR4: 00000000003406f0 [ 35.927616] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.934876] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.942158] Kernel panic - not syncing: Fatal exception [ 35.947762] Kernel Offset: disabled [ 35.951368] Rebooting in 86400 seconds..