[ 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 '10.128.0.150' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 35.676335] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 35.686587] INFO: trying to register non-static key. [ 35.691703] The code is fine but needs lockdep annotation, or maybe [ 35.698094] you didn't initialize this object before use? [ 35.703615] turning off the locking correctness validator. [ 35.709240] CPU: 0 PID: 8115 Comm: syz-executor110 Not tainted 4.19.211-syzkaller #0 [ 35.717107] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 35.726447] Call Trace: [ 35.729023] dump_stack+0x1fc/0x2ef [ 35.732639] register_lock_class+0xe82/0x11c0 [ 35.737121] ? static_obj+0x50/0x50 [ 35.740729] __lock_acquire+0x17d/0x3ff0 [ 35.744771] ? __lock_acquire+0x6de/0x3ff0 [ 35.748984] ? cache_alloc_refill+0x2f8/0x340 [ 35.753461] ? mark_held_locks+0xf0/0xf0 [ 35.757674] ? mark_held_locks+0xf0/0xf0 [ 35.761714] ? lock_downgrade+0x720/0x720 [ 35.765838] ? do_raw_spin_lock+0xcb/0x220 [ 35.770050] ? check_preemption_disabled+0x41/0x280 [ 35.775044] ? alloc_buffer_head+0x20/0x130 [ 35.779346] lock_acquire+0x170/0x3c0 [ 35.783128] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 35.788229] down_read+0x36/0x80 [ 35.791583] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 35.796664] nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 35.801578] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 35.805884] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 35.811574] ? save_trace+0xd6/0x290 [ 35.815381] ? nilfs_mdt_write_page+0x280/0x280 [ 35.820031] nilfs_mdt_read_block+0x96/0x3e0 [ 35.824426] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 35.830291] ? mark_held_locks+0xf0/0xf0 [ 35.834337] nilfs_mdt_get_block+0xe6/0xd40 [ 35.838641] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 35.843342] ? lock_downgrade+0x720/0x720 [ 35.847468] ? lock_acquire+0x170/0x3c0 [ 35.851420] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 35.856167] nilfs_palloc_get_block+0xc4/0x2b0 [ 35.860728] nilfs_palloc_get_entry_block+0x17b/0x230 [ 35.865904] ? nilfs_iget+0x1cf/0x860 [ 35.869683] nilfs_ifile_get_inode_block+0xbf/0x170 [ 35.874680] nilfs_iget+0x204/0x860 [ 35.878287] ? nilfs_iget_locked+0xd0/0xd0 [ 35.882500] ? nilfs_attach_log_writer+0x68b/0xa30 [ 35.887409] ? wait_woken+0x250/0x250 [ 35.891187] nilfs_get_root_dentry+0x26/0x250 [ 35.895659] nilfs_mount+0xac8/0xe70 [ 35.899352] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 35.904265] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 35.909259] ? pcpu_alloc+0xc9/0x1190 [ 35.913040] ? alloc_pages_current+0x19b/0x2a0 [ 35.917687] mount_fs+0xa3/0x310 [ 35.921032] vfs_kern_mount.part.0+0x68/0x470 [ 35.925505] do_mount+0x115c/0x2f50 [ 35.929112] ? __do_page_fault+0x180/0xd60 [ 35.933324] ? copy_mount_string+0x40/0x40 [ 35.937556] ? copy_mount_options+0x1cd/0x380 [ 35.942047] ? copy_mount_options+0x1da/0x380 [ 35.946609] ? copy_mount_options+0x1e9/0x380 [ 35.951080] ? copy_mount_options+0x26f/0x380 [ 35.955554] ksys_mount+0xcf/0x130 [ 35.959072] __x64_sys_mount+0xba/0x150 [ 35.963026] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 35.967586] do_syscall_64+0xf9/0x620 [ 35.971368] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.976543] RIP: 0033:0x7f4cb40b374a [ 35.980235] 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 [ 35.999113] RSP: 002b:00007ffd7d5fa908 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 36.006904] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f4cb40b374a [ 36.014150] RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007ffd7d5fa920 [ 36.021412] RBP: 00007ffd7d5fa920 R08: 00007ffd7d5fa960 R09: 00005555570922c0 [ 36.028662] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004 [ 36.035908] R13: 00007ffd7d5fa960 R14: 000000000000003a R15: 0000000020000770 [ 36.043526] kasan: CONFIG_KASAN_INLINE enabled [ 36.048114] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 36.058867] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 36.065114] CPU: 0 PID: 8115 Comm: syz-executor110 Not tainted 4.19.211-syzkaller #0 [ 36.072984] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 36.082327] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 36.088020] 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 [ 36.106901] RSP: 0018:ffff888091c0f650 EFLAGS: 00010246 [ 36.112289] RAX: 0000000000000000 RBX: ffff88808dfeb098 RCX: 0000000000000000 [ 36.119639] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808dfeb158 [ 36.126921] RBP: ffff888091c0f738 R08: 0000000000000001 R09: 0000000000000000 [ 36.134173] R10: 0000000000000005 R11: ffffffff8c66501b R12: 0000000000000002 [ 36.141423] R13: 1ffff11012381ecb R14: ffff88808dfeb0d0 R15: 0000000000000001 [ 36.148680] FS: 0000555557092300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 36.156885] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.162755] CR2: 00007f1317cd2168 CR3: 000000009881c000 CR4: 00000000003406f0 [ 36.170005] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.177256] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.184510] Call Trace: [ 36.187088] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 36.191398] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 36.197097] ? save_trace+0xd6/0x290 [ 36.200801] ? nilfs_mdt_write_page+0x280/0x280 [ 36.205452] nilfs_mdt_read_block+0x96/0x3e0 [ 36.209839] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 36.215706] ? mark_held_locks+0xf0/0xf0 [ 36.219749] nilfs_mdt_get_block+0xe6/0xd40 [ 36.224056] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 36.228706] ? lock_downgrade+0x720/0x720 [ 36.232832] ? lock_acquire+0x170/0x3c0 [ 36.236789] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 36.241526] nilfs_palloc_get_block+0xc4/0x2b0 [ 36.246092] nilfs_palloc_get_entry_block+0x17b/0x230 [ 36.251266] ? nilfs_iget+0x1cf/0x860 [ 36.255048] nilfs_ifile_get_inode_block+0xbf/0x170 [ 36.260042] nilfs_iget+0x204/0x860 [ 36.263647] ? nilfs_iget_locked+0xd0/0xd0 [ 36.267861] ? nilfs_attach_log_writer+0x68b/0xa30 [ 36.272856] ? wait_woken+0x250/0x250 [ 36.276636] nilfs_get_root_dentry+0x26/0x250 [ 36.281113] nilfs_mount+0xac8/0xe70 [ 36.284833] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 36.289744] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 36.294739] ? pcpu_alloc+0xc9/0x1190 [ 36.298523] ? alloc_pages_current+0x19b/0x2a0 [ 36.303083] mount_fs+0xa3/0x310 [ 36.306451] vfs_kern_mount.part.0+0x68/0x470 [ 36.310940] do_mount+0x115c/0x2f50 [ 36.314548] ? __do_page_fault+0x180/0xd60 [ 36.318762] ? copy_mount_string+0x40/0x40 [ 36.322977] ? copy_mount_options+0x1cd/0x380 [ 36.327450] ? copy_mount_options+0x1da/0x380 [ 36.331928] ? copy_mount_options+0x1e9/0x380 [ 36.336404] ? copy_mount_options+0x26f/0x380 [ 36.340879] ksys_mount+0xcf/0x130 [ 36.344400] __x64_sys_mount+0xba/0x150 [ 36.348356] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 36.352917] do_syscall_64+0xf9/0x620 [ 36.356697] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.361864] RIP: 0033:0x7f4cb40b374a [ 36.365560] 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 [ 36.384436] RSP: 002b:00007ffd7d5fa908 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 36.392123] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f4cb40b374a [ 36.399369] RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007ffd7d5fa920 [ 36.406619] RBP: 00007ffd7d5fa920 R08: 00007ffd7d5fa960 R09: 00005555570922c0 [ 36.413867] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004 [ 36.421123] R13: 00007ffd7d5fa960 R14: 000000000000003a R15: 0000000020000770 [ 36.428373] Modules linked in: [ 36.432108] ---[ end trace 4f04a0b66eaa9fe6 ]--- [ 36.436877] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 36.442660] 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 [ 36.461614] RSP: 0018:ffff888091c0f650 EFLAGS: 00010246 [ 36.466967] RAX: 0000000000000000 RBX: ffff88808dfeb098 RCX: 0000000000000000 [ 36.474271] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808dfeb158 [ 36.481589] RBP: ffff888091c0f738 R08: 0000000000000001 R09: 0000000000000000 [ 36.488966] R10: 0000000000000005 R11: ffffffff8c66501b R12: 0000000000000002 [ 36.496281] R13: 1ffff11012381ecb R14: ffff88808dfeb0d0 R15: 0000000000000001 [ 36.503597] FS: 0000555557092300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 36.511840] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.517803] CR2: 00007f1317cd2168 CR3: 000000009881c000 CR4: 00000000003406f0 [ 36.525104] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.532406] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.539668] Kernel panic - not syncing: Fatal exception [ 36.545208] Kernel Offset: disabled [ 36.548818] Rebooting in 86400 seconds..