[ 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 '10.128.0.74' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 42.303797] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 42.308244] INFO: trying to register non-static key. [ 42.318686] The code is fine but needs lockdep annotation, or maybe [ 42.325084] you didn't initialize this object before use? [ 42.330612] turning off the locking correctness validator. [ 42.336222] CPU: 0 PID: 8096 Comm: syz-executor716 Not tainted 4.19.211-syzkaller #0 [ 42.344080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 [ 42.353409] Call Trace: [ 42.355993] dump_stack+0x1fc/0x2ef [ 42.359602] register_lock_class+0xe82/0x11c0 [ 42.364077] ? static_obj+0x50/0x50 [ 42.367685] __lock_acquire+0x17d/0x3ff0 [ 42.371856] ? __lock_acquire+0x6de/0x3ff0 [ 42.376087] ? mark_held_locks+0xf0/0xf0 [ 42.380134] ? mark_held_locks+0xf0/0xf0 [ 42.384214] ? lock_downgrade+0x720/0x720 [ 42.388374] ? lock_acquire+0x170/0x3c0 [ 42.392333] ? get_mem_cgroup_from_page+0x7a/0x3b0 [ 42.397366] ? check_preemption_disabled+0x41/0x280 [ 42.402372] ? check_preemption_disabled+0x41/0x280 [ 42.407380] ? alloc_buffer_head+0x20/0x130 [ 42.411688] lock_acquire+0x170/0x3c0 [ 42.415467] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 42.420555] down_read+0x36/0x80 [ 42.423898] ? nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 42.428975] nilfs_bmap_lookup_at_level+0x7b/0x3e0 [ 42.433882] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 42.438183] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 42.443873] ? save_trace+0xd6/0x290 [ 42.447566] ? nilfs_mdt_write_page+0x280/0x280 [ 42.452217] nilfs_mdt_read_block+0x96/0x3e0 [ 42.456629] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 42.462493] ? mark_held_locks+0xf0/0xf0 [ 42.466621] nilfs_mdt_get_block+0xe6/0xd40 [ 42.470922] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 42.475568] ? lock_downgrade+0x720/0x720 [ 42.479692] ? lock_acquire+0x170/0x3c0 [ 42.483659] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 42.488396] nilfs_palloc_get_block+0xc4/0x2b0 [ 42.492968] nilfs_palloc_get_entry_block+0x17b/0x230 [ 42.498139] ? nilfs_iget+0x1cf/0x860 [ 42.501922] nilfs_ifile_get_inode_block+0xbf/0x170 [ 42.506916] nilfs_iget+0x204/0x860 [ 42.510530] ? nilfs_iget_locked+0xd0/0xd0 [ 42.514747] ? nilfs_attach_log_writer+0x68b/0xa30 [ 42.519656] ? wait_woken+0x250/0x250 [ 42.523434] ? nilfs_mount+0x9df/0xe70 [ 42.527300] nilfs_get_root_dentry+0x26/0x250 [ 42.531774] nilfs_mount+0xac8/0xe70 [ 42.535466] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 42.540464] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 42.545458] ? pcpu_alloc+0xc9/0x1190 [ 42.549237] ? alloc_pages_current+0x19b/0x2a0 [ 42.553797] mount_fs+0xa3/0x310 [ 42.557324] vfs_kern_mount.part.0+0x68/0x470 [ 42.561802] do_mount+0x115c/0x2f50 [ 42.565410] ? __do_page_fault+0x180/0xd60 [ 42.569622] ? copy_mount_string+0x40/0x40 [ 42.573838] ? copy_mount_options+0x1cd/0x380 [ 42.578311] ? copy_mount_options+0x1da/0x380 [ 42.582784] ? copy_mount_options+0x1e9/0x380 [ 42.587261] ? copy_mount_options+0x26f/0x380 [ 42.591734] ksys_mount+0xcf/0x130 [ 42.595256] __x64_sys_mount+0xba/0x150 [ 42.599208] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 42.603768] do_syscall_64+0xf9/0x620 [ 42.607546] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 42.612711] RIP: 0033:0x7f4a5997562a [ 42.616399] 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 [ 42.635279] RSP: 002b:00007ffd45b32ad8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 42.642966] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f4a5997562a [ 42.650212] RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007ffd45b32af0 [ 42.657547] RBP: 00007ffd45b32af0 R08: 00007ffd45b32b30 R09: 0000555555c4d2c0 [ 42.664794] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004 [ 42.672053] R13: 00007ffd45b32b30 R14: 000000000000003a R15: 0000000020000770 [ 42.679582] kasan: CONFIG_KASAN_INLINE enabled [ 42.684158] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 42.691693] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 42.697929] CPU: 0 PID: 8096 Comm: syz-executor716 Not tainted 4.19.211-syzkaller #0 [ 42.705801] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 [ 42.715143] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 42.720832] 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 [ 42.739713] RSP: 0018:ffff888091eef650 EFLAGS: 00010246 [ 42.745054] RAX: 0000000000000000 RBX: ffff88808b058098 RCX: 0000000000000000 [ 42.752304] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808b058158 [ 42.759552] RBP: ffff888091eef738 R08: 0000000000000001 R09: 0000000000000000 [ 42.767406] R10: 0000000000000005 R11: ffffffff8c66501b R12: 0000000000000002 [ 42.774654] R13: 1ffff110123ddecb R14: ffff88808b0580d0 R15: 0000000000000001 [ 42.781904] FS: 0000555555c4d300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 42.790107] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.795964] CR2: 00007ffd45b33000 CR3: 000000009a468000 CR4: 00000000003406f0 [ 42.803213] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.810464] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.822225] Call Trace: [ 42.824800] ? nilfs_bmap_get_dat+0xc0/0xc0 [ 42.829104] nilfs_mdt_submit_block.constprop.0+0x1a5/0xaa0 [ 42.834799] ? save_trace+0xd6/0x290 [ 42.838494] ? nilfs_mdt_write_page+0x280/0x280 [ 42.843146] nilfs_mdt_read_block+0x96/0x3e0 [ 42.847540] ? nilfs_mdt_submit_block.constprop.0+0xaa0/0xaa0 [ 42.853411] ? mark_held_locks+0xf0/0xf0 [ 42.857455] nilfs_mdt_get_block+0xe6/0xd40 [ 42.861845] ? nilfs_mdt_read_block+0x3e0/0x3e0 [ 42.866504] ? lock_downgrade+0x720/0x720 [ 42.870630] ? lock_acquire+0x170/0x3c0 [ 42.874581] ? nilfs_palloc_get_block+0x3a/0x2b0 [ 42.879316] nilfs_palloc_get_block+0xc4/0x2b0 [ 42.883890] nilfs_palloc_get_entry_block+0x17b/0x230 [ 42.889058] ? nilfs_iget+0x1cf/0x860 [ 42.892838] nilfs_ifile_get_inode_block+0xbf/0x170 [ 42.897834] nilfs_iget+0x204/0x860 [ 42.901441] ? nilfs_iget_locked+0xd0/0xd0 [ 42.905712] ? nilfs_attach_log_writer+0x68b/0xa30 [ 42.910620] ? wait_woken+0x250/0x250 [ 42.914399] ? nilfs_mount+0x9df/0xe70 [ 42.918351] nilfs_get_root_dentry+0x26/0x250 [ 42.922830] nilfs_mount+0xac8/0xe70 [ 42.926526] ? nilfs_attach_checkpoint+0x4b0/0x4b0 [ 42.931439] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 42.936435] ? pcpu_alloc+0xc9/0x1190 [ 42.940220] ? alloc_pages_current+0x19b/0x2a0 [ 42.944782] mount_fs+0xa3/0x310 [ 42.948129] vfs_kern_mount.part.0+0x68/0x470 [ 42.952618] do_mount+0x115c/0x2f50 [ 42.956324] ? __do_page_fault+0x180/0xd60 [ 42.960552] ? copy_mount_string+0x40/0x40 [ 42.964772] ? copy_mount_options+0x1cd/0x380 [ 42.969251] ? copy_mount_options+0x1da/0x380 [ 42.973736] ? copy_mount_options+0x1e9/0x380 [ 42.978225] ? copy_mount_options+0x26f/0x380 [ 42.982702] ksys_mount+0xcf/0x130 [ 42.986278] __x64_sys_mount+0xba/0x150 [ 42.990249] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 42.994815] do_syscall_64+0xf9/0x620 [ 42.998601] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 43.003775] RIP: 0033:0x7f4a5997562a [ 43.007472] 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 [ 43.026541] RSP: 002b:00007ffd45b32ad8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 43.034229] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f4a5997562a [ 43.041477] RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007ffd45b32af0 [ 43.048810] RBP: 00007ffd45b32af0 R08: 00007ffd45b32b30 R09: 0000555555c4d2c0 [ 43.056056] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004 [ 43.063304] R13: 00007ffd45b32b30 R14: 000000000000003a R15: 0000000020000770 [ 43.070564] Modules linked in: [ 43.073809] ---[ end trace 207cddbe921e6aa8 ]--- [ 43.078627] RIP: 0010:nilfs_bmap_lookup_at_level+0xb5/0x3e0 [ 43.084340] 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 [ 43.103297] RSP: 0018:ffff888091eef650 EFLAGS: 00010246 [ 43.108723] RAX: 0000000000000000 RBX: ffff88808b058098 RCX: 0000000000000000 [ 43.115979] RDX: dffffc0000000000 RSI: ffffffff814a9aa2 RDI: ffff88808b058158 [ 43.123793] RBP: ffff888091eef738 R08: 0000000000000001 R09: 0000000000000000 [ 43.131237] R10: 0000000000000005 R11: ffffffff8c66501b R12: 0000000000000002 [ 43.138547] R13: 1ffff110123ddecb R14: ffff88808b0580d0 R15: 0000000000000001 [ 43.145819] FS: 0000555555c4d300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 43.154065] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.159991] CR2: 00007ffd45b33000 CR3: 000000009a468000 CR4: 00000000003406f0 [ 43.167249] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 43.174540] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 43.181849] Kernel panic - not syncing: Fatal exception [ 43.187373] Kernel Offset: disabled [ 43.190981] Rebooting in 86400 seconds..