[ 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 '10.128.0.234' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 35.496038] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 35.506237] INFO: trying to register non-static key. [ 35.511343] The code is fine but needs lockdep annotation, or maybe [ 35.517738] you didn't initialize this object before use? [ 35.523262] turning off the locking correctness validator. [ 35.528871] CPU: 1 PID: 8118 Comm: syz-executor309 Not tainted 4.19.211-syzkaller #0 [ 35.536729] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 35.546059] Call Trace: [ 35.548630] dump_stack+0x1fc/0x2ef [ 35.552239] register_lock_class+0xe82/0x11c0 [ 35.556713] ? static_obj+0x50/0x50 [ 35.560330] __lock_acquire+0x17d/0x3ff0 [ 35.564440] ? __lock_acquire+0x6de/0x3ff0 [ 35.568657] ? mark_held_locks+0xf0/0xf0 [ 35.572702] ? mark_held_locks+0xf0/0xf0 [ 35.576753] ? lock_downgrade+0x720/0x720 [ 35.580892] ? lock_acquire+0x170/0x3c0 [ 35.584853] ? get_mem_cgroup_from_page+0x7a/0x3b0 [ 35.589762] ? check_preemption_disabled+0x41/0x280 [ 35.594759] ? check_preemption_disabled+0x41/0x280 [ 35.599757] ? alloc_buffer_head+0x20/0x130 [ 35.604080] lock_acquire+0x170/0x3c0 [ 35.607865] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 35.612945] down_read+0x36/0x80 [ 35.616293] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 35.621372] nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 35.626291] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 35.630593] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 35.636280] ? save_trace+0xd6/0x290 [ 35.640124] ? nilfs_mdt_write_page+0x280/0x280 [ 35.644778] nilfs_mdt_read_block+0x96/0x3e0 [ 35.649172] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 35.655044] ? mark_held_locks+0xf0/0xf0 [ 35.659090] nilfs_mdt_get_block+0xe6/0xd40 [ 35.663393] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 35.668052] ? lock_downgrade+0x720/0x720 [ 35.672558] ? lock_acquire+0x170/0x3c0 [ 35.676520] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 35.681288] nilfs_palloc_get_block+0xc4/0x2b0 [ 35.685873] nilfs_palloc_get_entry_block+0x17b/0x230 [ 35.691046] ? nilfs_iget+0x1cf/0x860 [ 35.694826] nilfs_ifile_get_inode_block+0xbf/0x170 [ 35.699819] nilfs_iget+0x204/0x860 [ 35.703430] ? nilfs_iget_locked+0xd0/0xd0 [ 35.707642] ? nilfs_attach_log_writer+0x68b/0xa30 [ 35.712549] ? wait_woken+0x250/0x250 [ 35.716328] ? nilfs_mount+0x9df/0xe70 [ 35.720192] nilfs_get_root_dentry+0x26/0x250 [ 35.724668] nilfs_mount+0xac8/0xe70 [ 35.728359] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 35.733268] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 35.738261] ? pcpu_alloc+0xc9/0x1190 [ 35.742041] ? alloc_pages_current+0x19b/0x2a0 [ 35.746602] mount_fs+0xa3/0x310 [ 35.749952] vfs_kern_mount.part.0+0x68/0x470 [ 35.754427] do_mount+0x115c/0x2f50 [ 35.758035] ? cmp_ex_sort+0xc0/0xc0 [ 35.761727] ? __do_page_fault+0x180/0xd60 [ 35.765939] ? copy_mount_string+0x40/0x40 [ 35.770152] ? copy_mount_options+0x1cd/0x380 [ 35.774624] ? memset+0x20/0x40 [ 35.777880] ? copy_mount_options+0x26f/0x380 [ 35.782352] ksys_mount+0xcf/0x130 [ 35.785872] __x64_sys_mount+0xba/0x150 [ 35.789824] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 35.794384] do_syscall_64+0xf9/0x620 [ 35.798165] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.803332] RIP: 0033:0x7f645242486a [ 35.807023] 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 [ 35.825901] RSP: 002b:00007fff64e79008 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 35.833586] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f645242486a [ 35.840833] RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007fff64e79020 [ 35.848078] RBP: 00007fff64e79020 R08: 00007fff64e79060 R09: 00005555556562c0 [ 35.855324] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004 [ 35.862571] R13: 00007fff64e79060 R14: 000000000000003b R15: 0000000020000788 [ 35.870107] kasan: CONFIG_KASAN_INLINE enabled [ 35.874687] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 35.882127] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 35.888355] CPU: 1 PID: 8118 Comm: syz-executor309 Not tainted 4.19.211-syzkaller #0 [ 35.896230] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 35.905592] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 35.911283] 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 [ 35.930163] RSP: 0018:ffff8880b062f650 EFLAGS: 00010246 [ 35.935507] RAX: 0000000000000000 RBX: ffff88808b4717b0 RCX: 0000000000000000 [ 35.942753] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808b471870 [ 35.949999] RBP: ffff8880b062f738 R08: 0000000000000001 R09: 0000000000000000 [ 35.957249] R10: 0000000000000005 R11: ffffffff8c66505b R12: 0000000000000002 [ 35.964498] R13: 1ffff110160c5ecb R14: ffff88808b4717e8 R15: 0000000000000001 [ 35.971746] FS: 0000555555656300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 35.979946] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.985802] CR2: 0000560b7eab4188 CR3: 00000000aa5b9000 CR4: 00000000003406e0 [ 35.993053] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.000300] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.007546] Call Trace: [ 36.010120] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 36.014437] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 36.020131] ? save_trace+0xd6/0x290 [ 36.023823] ? nilfs_mdt_write_page+0x280/0x280 [ 36.028512] nilfs_mdt_read_block+0x96/0x3e0 [ 36.032901] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 36.038762] ? mark_held_locks+0xf0/0xf0 [ 36.042802] nilfs_mdt_get_block+0xe6/0xd40 [ 36.047108] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 36.051755] ? lock_downgrade+0x720/0x720 [ 36.055880] ? lock_acquire+0x170/0x3c0 [ 36.059831] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 36.064566] nilfs_palloc_get_block+0xc4/0x2b0 [ 36.069128] nilfs_palloc_get_entry_block+0x17b/0x230 [ 36.074310] ? nilfs_iget+0x1cf/0x860 [ 36.078086] nilfs_ifile_get_inode_block+0xbf/0x170 [ 36.083084] nilfs_iget+0x204/0x860 [ 36.086693] ? nilfs_iget_locked+0xd0/0xd0 [ 36.090910] ? nilfs_attach_log_writer+0x68b/0xa30 [ 36.095819] ? wait_woken+0x250/0x250 [ 36.099597] ? nilfs_mount+0x9df/0xe70 [ 36.103461] nilfs_get_root_dentry+0x26/0x250 [ 36.107937] nilfs_mount+0xac8/0xe70 [ 36.111631] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 36.116540] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 36.121536] ? pcpu_alloc+0xc9/0x1190 [ 36.125317] ? alloc_pages_current+0x19b/0x2a0 [ 36.129883] mount_fs+0xa3/0x310 [ 36.133243] vfs_kern_mount.part.0+0x68/0x470 [ 36.137728] do_mount+0x115c/0x2f50 [ 36.141335] ? cmp_ex_sort+0xc0/0xc0 [ 36.145025] ? __do_page_fault+0x180/0xd60 [ 36.149243] ? copy_mount_string+0x40/0x40 [ 36.153454] ? copy_mount_options+0x1cd/0x380 [ 36.157928] ? memset+0x20/0x40 [ 36.161184] ? copy_mount_options+0x26f/0x380 [ 36.165659] ksys_mount+0xcf/0x130 [ 36.169189] __x64_sys_mount+0xba/0x150 [ 36.173144] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 36.177706] do_syscall_64+0xf9/0x620 [ 36.181488] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.186657] RIP: 0033:0x7f645242486a [ 36.190348] 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 [ 36.209225] RSP: 002b:00007fff64e79008 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 36.216910] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f645242486a [ 36.224164] RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007fff64e79020 [ 36.231409] RBP: 00007fff64e79020 R08: 00007fff64e79060 R09: 00005555556562c0 [ 36.238655] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004 [ 36.245912] R13: 00007fff64e79060 R14: 000000000000003b R15: 0000000020000788 [ 36.253161] Modules linked in: [ 36.267335] ---[ end trace 2f1fc92acdffe0bc ]--- [ 36.272108] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 36.278074] 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 [ 36.297200] RSP: 0018:ffff8880b062f650 EFLAGS: 00010246 [ 36.302714] RAX: 0000000000000000 RBX: ffff88808b4717b0 RCX: 0000000000000000 [ 36.310207] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808b471870 [ 36.317669] RBP: ffff8880b062f738 R08: 0000000000000001 R09: 0000000000000000 [ 36.324924] R10: 0000000000000005 R11: ffffffff8c66505b R12: 0000000000000002 [ 36.332498] R13: 1ffff110160c5ecb R14: ffff88808b4717e8 R15: 0000000000000001 [ 36.339961] FS: 0000555555656300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 36.348418] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.354295] CR2: 0000560b7eab4188 CR3: 00000000aa5b9000 CR4: 00000000003406e0 [ 36.361789] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.369225] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.376477] Kernel panic - not syncing: Fatal exception [ 36.381980] Kernel Offset: disabled [ 36.385590] Rebooting in 86400 seconds..