[ 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 '10.128.0.191' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 35.340685] INFO: trying to register non-static key. [ 35.343365] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 35.345809] The code is fine but needs lockdep annotation, or maybe [ 35.362050] you didn't initialize this object before use? [ 35.367590] turning off the locking correctness validator. [ 35.373217] CPU: 0 PID: 8091 Comm: syz-executor367 Not tainted 4.19.211-syzkaller #0 [ 35.381173] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 35.390651] Call Trace: [ 35.393241] dump_stack+0x1fc/0x2ef [ 35.396859] register_lock_class+0xe82/0x11c0 [ 35.401339] ? static_obj+0x50/0x50 [ 35.404947] __lock_acquire+0x17d/0x3ff0 [ 35.408990] ? __lock_acquire+0x6de/0x3ff0 [ 35.413212] ? cache_alloc_refill+0x2f8/0x340 [ 35.417697] ? mark_held_locks+0xf0/0xf0 [ 35.421743] ? mark_held_locks+0xf0/0xf0 [ 35.425789] ? lock_downgrade+0x720/0x720 [ 35.429920] ? do_raw_spin_lock+0xcb/0x220 [ 35.434139] ? check_preemption_disabled+0x41/0x280 [ 35.439138] ? alloc_buffer_head+0x20/0x130 [ 35.443441] lock_acquire+0x170/0x3c0 [ 35.447224] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 35.453006] down_read+0x36/0x80 [ 35.456352] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 35.461436] nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 35.466348] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 35.470661] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 35.476446] ? save_trace+0xd6/0x290 [ 35.480140] ? nilfs_mdt_write_page+0x280/0x280 [ 35.484789] nilfs_mdt_read_block+0x96/0x3e0 [ 35.489179] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 35.495046] ? mark_held_locks+0xf0/0xf0 [ 35.499088] nilfs_mdt_get_block+0xe6/0xd40 [ 35.503389] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 35.508039] ? lock_downgrade+0x720/0x720 [ 35.512170] ? lock_acquire+0x170/0x3c0 [ 35.516125] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 35.520865] nilfs_palloc_get_block+0xc4/0x2b0 [ 35.525431] nilfs_palloc_get_entry_block+0x17b/0x230 [ 35.530606] ? nilfs_iget+0x1cf/0x860 [ 35.534388] nilfs_ifile_get_inode_block+0xbf/0x170 [ 35.539386] nilfs_iget+0x204/0x860 [ 35.542994] ? nilfs_iget_locked+0xd0/0xd0 [ 35.547209] ? nilfs_attach_log_writer+0x68b/0xa30 [ 35.552121] ? wait_woken+0x250/0x250 [ 35.555903] ? nilfs_mount+0x9df/0xe70 [ 35.559772] nilfs_get_root_dentry+0x26/0x250 [ 35.564249] nilfs_mount+0xac8/0xe70 [ 35.567947] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 35.572862] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 35.577868] ? pcpu_alloc+0xc9/0x1190 [ 35.581649] ? alloc_pages_current+0x19b/0x2a0 [ 35.586211] mount_fs+0xa3/0x310 [ 35.589560] vfs_kern_mount.part.0+0x68/0x470 [ 35.594040] do_mount+0x115c/0x2f50 [ 35.597652] ? __do_page_fault+0x180/0xd60 [ 35.601868] ? copy_mount_string+0x40/0x40 [ 35.606084] ? copy_mount_options+0x1cd/0x380 [ 35.610561] ? copy_mount_options+0x1da/0x380 [ 35.615037] ? copy_mount_options+0x1e9/0x380 [ 35.619516] ? copy_mount_options+0x26f/0x380 [ 35.623993] ksys_mount+0xcf/0x130 [ 35.627538] __x64_sys_mount+0xba/0x150 [ 35.631495] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 35.636059] do_syscall_64+0xf9/0x620 [ 35.639841] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.645013] RIP: 0033:0x7fdf4b4a853a [ 35.648710] 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 [ 35.667591] RSP: 002b:00007ffe4dfffa68 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 35.675280] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fdf4b4a853a [ 35.682530] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffe4dfffa80 [ 35.689780] RBP: 00007ffe4dfffa80 R08: 00007ffe4dfffac0 R09: 000055555687a2c0 [ 35.697030] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004 [ 35.704279] R13: 00007ffe4dfffac0 R14: 0000000000000039 R15: 0000000020000758 [ 35.711778] kasan: CONFIG_KASAN_INLINE enabled [ 35.716421] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 35.724156] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 35.730406] CPU: 0 PID: 8091 Comm: syz-executor367 Not tainted 4.19.211-syzkaller #0 [ 35.738299] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 35.747648] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 35.753452] 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 [ 35.772357] RSP: 0018:ffff8880b05e7650 EFLAGS: 00010246 [ 35.777703] RAX: 0000000000000000 RBX: ffff88808dbf4098 RCX: 0000000000000000 [ 35.784950] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808dbf4158 [ 35.792196] RBP: ffff8880b05e7738 R08: 0000000000000001 R09: 0000000000000000 [ 35.799446] R10: 0000000000000005 R11: ffffffff8c66501b R12: 0000000000000002 [ 35.806697] R13: 1ffff110160bcecb R14: ffff88808dbf40d0 R15: 0000000000000001 [ 35.813950] FS: 000055555687a300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 35.822159] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.828022] CR2: 00007ffe90bb9f00 CR3: 00000000b4b0e000 CR4: 00000000003406f0 [ 35.835276] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.842528] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.849775] Call Trace: [ 35.852350] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 35.856656] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 35.862349] ? save_trace+0xd6/0x290 [ 35.866049] ? nilfs_mdt_write_page+0x280/0x280 [ 35.870704] nilfs_mdt_read_block+0x96/0x3e0 [ 35.875092] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 35.880963] ? mark_held_locks+0xf0/0xf0 [ 35.885008] nilfs_mdt_get_block+0xe6/0xd40 [ 35.889313] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 35.893962] ? lock_downgrade+0x720/0x720 [ 35.898088] ? lock_acquire+0x170/0x3c0 [ 35.902043] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 35.906779] nilfs_palloc_get_block+0xc4/0x2b0 [ 35.911346] nilfs_palloc_get_entry_block+0x17b/0x230 [ 35.916603] ? nilfs_iget+0x1cf/0x860 [ 35.920386] nilfs_ifile_get_inode_block+0xbf/0x170 [ 35.925384] nilfs_iget+0x204/0x860 [ 35.928994] ? nilfs_iget_locked+0xd0/0xd0 [ 35.933211] ? nilfs_attach_log_writer+0x68b/0xa30 [ 35.938123] ? wait_woken+0x250/0x250 [ 35.941909] ? nilfs_mount+0x9df/0xe70 [ 35.945782] nilfs_get_root_dentry+0x26/0x250 [ 35.950265] nilfs_mount+0xac8/0xe70 [ 35.953966] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 35.958883] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 35.963883] ? pcpu_alloc+0xc9/0x1190 [ 35.967670] ? alloc_pages_current+0x19b/0x2a0 [ 35.972244] mount_fs+0xa3/0x310 [ 35.975596] vfs_kern_mount.part.0+0x68/0x470 [ 35.980077] do_mount+0x115c/0x2f50 [ 35.983687] ? __do_page_fault+0x180/0xd60 [ 35.987908] ? copy_mount_string+0x40/0x40 [ 35.992125] ? copy_mount_options+0x1cd/0x380 [ 35.996605] ? copy_mount_options+0x1da/0x380 [ 36.001083] ? copy_mount_options+0x1e9/0x380 [ 36.005566] ? copy_mount_options+0x26f/0x380 [ 36.010040] ksys_mount+0xcf/0x130 [ 36.013565] __x64_sys_mount+0xba/0x150 [ 36.017523] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 36.022097] do_syscall_64+0xf9/0x620 [ 36.025885] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.031068] RIP: 0033:0x7fdf4b4a853a [ 36.034766] 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 [ 36.053654] RSP: 002b:00007ffe4dfffa68 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 36.061349] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fdf4b4a853a [ 36.068612] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffe4dfffa80 [ 36.075872] RBP: 00007ffe4dfffa80 R08: 00007ffe4dfffac0 R09: 000055555687a2c0 [ 36.083123] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004 [ 36.090372] R13: 00007ffe4dfffac0 R14: 0000000000000039 R15: 0000000020000758 [ 36.097625] Modules linked in: [ 36.100923] ---[ end trace 114678a372ac93bc ]--- [ 36.105864] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 36.111581] 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 [ 36.130681] RSP: 0018:ffff8880b05e7650 EFLAGS: 00010246 [ 36.136139] RAX: 0000000000000000 RBX: ffff88808dbf4098 RCX: 0000000000000000 [ 36.143446] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808dbf4158 [ 36.150715] RBP: ffff8880b05e7738 R08: 0000000000000001 R09: 0000000000000000 [ 36.158059] R10: 0000000000000005 R11: ffffffff8c66501b R12: 0000000000000002 [ 36.165426] R13: 1ffff110160bcecb R14: ffff88808dbf40d0 R15: 0000000000000001 [ 36.172747] FS: 000055555687a300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 36.180991] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.186985] CR2: 00007ffe90bb9f00 CR3: 00000000b4b0e000 CR4: 00000000003406f0 [ 36.194341] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.201755] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.209085] Kernel panic - not syncing: Fatal exception [ 36.214617] Kernel Offset: disabled [ 36.218233] Rebooting in 86400 seconds..