[ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. [ 58.037301][ T635] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:5/635 [ 58.046700][ T635] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.052637][ T635] CPU: 0 PID: 635 Comm: kworker/u4:5 Not tainted 5.8.0-rc1-syzkaller #0 [ 58.061337][ T635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.071412][ T635] Workqueue: writeback wb_workfn (flush-8:0) [ 58.077491][ T635] Call Trace: [ 58.080795][ T635] dump_stack+0x18f/0x20d [ 58.085156][ T635] check_preemption_disabled+0x20d/0x220 [ 58.090815][ T635] ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.095942][ T635] ? ext4_find_extent+0x81a/0xad0 [ 58.101686][ T635] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.107192][ T635] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.112976][ T635] ext4_ext_map_blocks+0x201b/0x33e0 [ 58.118319][ T635] ? ext4_ext_release+0x10/0x10 [ 58.123208][ T635] ? down_write_killable+0x170/0x170 [ 58.128504][ T635] ? ext4_es_lookup_extent+0x41d/0xd10 [ 58.133983][ T635] ext4_map_blocks+0x4cb/0x1640 [ 58.138883][ T635] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.144197][ T635] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.149763][ T635] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.155771][ T635] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 58.161255][ T635] ext4_writepages+0x1a7b/0x33c0 [ 58.166231][ T635] ? __ext4_mark_inode_dirty+0x940/0x940 [ 58.171877][ T635] ? __lock_acquire+0x2224/0x48b0 [ 58.177638][ T635] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 58.183639][ T635] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 58.189660][ T635] ? __ext4_mark_inode_dirty+0x940/0x940 [ 58.195344][ T635] ? do_writepages+0xfa/0x2a0 [ 58.200031][ T635] do_writepages+0xfa/0x2a0 [ 58.204813][ T635] ? page_writeback_cpu_online+0x10/0x10 [ 58.210467][ T635] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.216055][ T635] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.222317][ T635] ? lock_downgrade+0x840/0x840 [ 58.227185][ T635] __writeback_single_inode+0x12a/0x13d0 [ 58.232964][ T635] ? _raw_spin_unlock+0x24/0x40 [ 58.237834][ T635] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 58.246009][ T635] writeback_sb_inodes+0x515/0xdc0 [ 58.251163][ T635] ? __writeback_single_inode+0x13d0/0x13d0 [ 58.257275][ T635] __writeback_inodes_wb+0xc3/0x250 [ 58.262513][ T635] wb_writeback+0x8db/0xd50 [ 58.267037][ T635] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 58.278358][ T635] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 58.284270][ T635] ? cpumask_next+0x3c/0x40 [ 58.288786][ T635] ? get_nr_dirty_inodes+0xd6/0x130 [ 58.294005][ T635] wb_workfn+0xab3/0x1090 [ 58.298358][ T635] ? inode_wait_for_writeback+0x30/0x30 [ 58.304196][ T635] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.309931][ T635] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.315934][ T635] process_one_work+0x965/0x1690 [ 58.320899][ T635] ? lock_release+0x800/0x800 [ 58.325593][ T635] ? pwq_dec_nr_in_flight+0x310/0x310 [ 58.330996][ T635] ? rwlock_bug.part.0+0x90/0x90 [ 58.335955][ T635] worker_thread+0x96/0xe10 [ 58.340485][ T635] ? process_one_work+0x1690/0x1690 [ 58.345683][ T635] kthread+0x3b5/0x4a0 [ 58.349739][ T635] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 58.355445][ T635] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 58.361238][ T635] ret_from_fork+0x1f/0x30 Starting Load/Save RF Kill Switch Status... [ 58.437935][ T6732] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6732 [ 58.448055][ T6732] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.453950][ T6732] CPU: 1 PID: 6732 Comm: systemd-rfkill Not tainted 5.8.0-rc1-syzkaller #0 [ 58.462521][ T6732] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.472917][ T6732] Call Trace: [ 58.476193][ T6732] dump_stack+0x18f/0x20d [ 58.480529][ T6732] check_preemption_disabled+0x20d/0x220 [ 58.486161][ T6732] ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.491284][ T6732] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.496741][ T6732] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.502455][ T6732] ext4_ext_map_blocks+0x201b/0x33e0 [ 58.507744][ T6732] ? ext4_ext_release+0x10/0x10 [ 58.512584][ T6732] ? down_write_killable+0x170/0x170 [ 58.517955][ T6732] ? ext4_es_lookup_extent+0x41d/0xd10 [ 58.523406][ T6732] ext4_map_blocks+0x4cb/0x1640 [ 58.528252][ T6732] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.533571][ T6732] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.539120][ T6732] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.545166][ T6732] ? prandom_u32_state+0xe/0x170 [ 58.550113][ T6732] ? __brelse+0x84/0xa0 [ 58.554249][ T6732] ? __ext4_new_inode+0x144/0x55e0 [ 58.559352][ T6732] ext4_getblk+0xad/0x520 [ 58.563689][ T6732] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.569455][ T6732] ? ext4_free_inode+0x1700/0x1700 [ 58.574590][ T6732] ext4_bread+0x7c/0x380 [ 58.578820][ T6732] ? ext4_getblk+0x520/0x520 [ 58.583414][ T6732] ? dquot_get_next_dqblk+0x180/0x180 [ 58.588789][ T6732] ext4_append+0x153/0x360 [ 58.593190][ T6732] ext4_mkdir+0x5e0/0xdf0 [ 58.597535][ T6732] ? ext4_rmdir+0xde0/0xde0 [ 58.602041][ T6732] ? security_inode_permission+0xc4/0xf0 [ 58.607681][ T6732] vfs_mkdir+0x419/0x690 [ 58.611906][ T6732] do_mkdirat+0x21e/0x280 [ 58.616213][ T6732] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.621137][ T6732] ? do_syscall_64+0x1c/0xe0 [ 58.625723][ T6732] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.631788][ T6732] do_syscall_64+0x60/0xe0 [ 58.636187][ T6732] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 58.642071][ T6732] RIP: 0033:0x7fc8a85ac687 [ 58.646480][ T6732] Code: Bad RIP value. [ 58.650828][ T6732] RSP: 002b:00007fff87829168 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 58.650856][ T6732] RAX: ffffffffffffffda RBX: 000055ba1775f985 RCX: 00007fc8a85ac687 [ 58.650866][ T6732] RDX: 00007fff87829030 RSI: 00000000000001ed RDI: 000055ba1775f985 [ 58.650876][ T6732] RBP: 00007fc8a85ac680 R08: 0000000000000100 R09: 0000000000000000 [ 58.650885][ T6732] R10: 000055ba1775f980 R11: 0000000000000246 R12: 00000000000001ed [ 58.650894][ T6732] R13: 00007fff878292f0 R14: 0000000000000000 R15: 0000000000000000 Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.32' (ECDSA) to the list of known hosts. 2020/06/15 17:38:10 fuzzer started 2020/06/15 17:38:11 connecting to host at 10.128.0.26:39593 2020/06/15 17:38:11 checking machine... 2020/06/15 17:38:11 checking revisions... 2020/06/15 17:38:11 testing simple program... syzkaller login: [ 63.405934][ T7] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:0/7 [ 63.414997][ T7] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.422118][ T7] CPU: 0 PID: 7 Comm: kworker/u4:0 Not tainted 5.8.0-rc1-syzkaller #0 [ 63.430293][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.440468][ T7] Workqueue: writeback wb_workfn (flush-8:0) [ 63.446460][ T7] Call Trace: [ 63.449847][ T7] dump_stack+0x18f/0x20d [ 63.454190][ T7] check_preemption_disabled+0x20d/0x220 [ 63.459835][ T7] ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.464969][ T7] ? ext4_find_extent+0x81a/0xad0 [ 63.470015][ T7] ? ext4_ext_search_right+0x2ca/0xb20 [ 63.475504][ T7] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 63.481251][ T7] ext4_ext_map_blocks+0x201b/0x33e0 [ 63.486651][ T7] ? ext4_ext_release+0x10/0x10 [ 63.491549][ T7] ? down_write_killable+0x170/0x170 [ 63.496847][ T7] ? ext4_es_lookup_extent+0x41d/0xd10 [ 63.502359][ T7] ext4_map_blocks+0x4cb/0x1640 [ 63.507235][ T7] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 63.512459][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.518032][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.524116][ T7] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 63.529602][ T7] ext4_writepages+0x1a7b/0x33c0 [ 63.534628][ T7] ? __ext4_mark_inode_dirty+0x940/0x940 [ 63.540279][ T7] ? __lock_acquire+0x2224/0x48b0 [ 63.545343][ T7] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 63.551347][ T7] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 63.557353][ T7] ? __ext4_mark_inode_dirty+0x940/0x940 [ 63.563009][ T7] ? do_writepages+0xfa/0x2a0 [ 63.567699][ T7] do_writepages+0xfa/0x2a0 [ 63.572220][ T7] ? page_writeback_cpu_online+0x10/0x10 [ 63.579098][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.584655][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.590647][ T7] ? lock_downgrade+0x840/0x840 [ 63.595691][ T7] __writeback_single_inode+0x12a/0x13d0 [ 63.601342][ T7] ? _raw_spin_unlock+0x24/0x40 [ 63.606245][ T7] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 63.612514][ T7] writeback_sb_inodes+0x515/0xdc0 [ 63.617707][ T7] ? __writeback_single_inode+0x13d0/0x13d0 [ 63.623641][ T7] __writeback_inodes_wb+0xc3/0x250 [ 63.628868][ T7] wb_writeback+0x8db/0xd50 [ 63.633400][ T7] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 63.639841][ T7] ? cpumask_next+0x3c/0x40 [ 63.644445][ T7] ? get_nr_dirty_inodes+0xd6/0x130 [ 63.649841][ T7] wb_workfn+0x9bc/0x1090 [ 63.654756][ T7] ? inode_wait_for_writeback+0x30/0x30 [ 63.660327][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.665892][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.671893][ T7] process_one_work+0x965/0x1690 [ 63.677924][ T7] ? lock_release+0x800/0x800 [ 63.682611][ T7] ? pwq_dec_nr_in_flight+0x310/0x310 [ 63.688174][ T7] ? rwlock_bug.part.0+0x90/0x90 [ 63.691675][ T6800] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6800 [ 63.693127][ T7] worker_thread+0x96/0xe10 [ 63.702546][ T6800] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.707149][ T7] ? process_one_work+0x1690/0x1690 [ 63.707166][ T7] kthread+0x3b5/0x4a0 [ 63.707181][ T7] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.707196][ T7] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.707216][ T7] ret_from_fork+0x1f/0x30 [ 63.739615][ T6800] CPU: 1 PID: 6800 Comm: syz-fuzzer Not tainted 5.8.0-rc1-syzkaller #0 [ 63.747880][ T6800] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.758077][ T6800] Call Trace: [ 63.761401][ T6800] dump_stack+0x18f/0x20d [ 63.765759][ T6800] check_preemption_disabled+0x20d/0x220 [ 63.771413][ T6800] ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.776574][ T6800] ? ext4_ext_search_right+0x2ca/0xb20 [ 63.782051][ T6800] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 63.782349][ T7] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:0/7 [ 63.787786][ T6800] ext4_ext_map_blocks+0x201b/0x33e0 [ 63.787811][ T6800] ? ext4_ext_release+0x10/0x10 [ 63.787845][ T6800] ? down_write_killable+0x170/0x170 [ 63.796785][ T7] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 63.802036][ T6800] ? ext4_es_lookup_extent+0x41d/0xd10 [ 63.823435][ T6800] ext4_map_blocks+0x4cb/0x1640 [ 63.828297][ T6800] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 63.833482][ T6800] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 63.839018][ T6800] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.844983][ T6800] ? prandom_u32_state+0xe/0x170 [ 63.849928][ T6800] ? __brelse+0x84/0xa0 [ 63.854081][ T6800] ? __ext4_new_inode+0x144/0x55e0 [ 63.859179][ T6800] ext4_getblk+0xad/0x520 [ 63.863587][ T6800] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 63.869304][ T6800] ? ext4_free_inode+0x1700/0x1700 [ 63.874419][ T6800] ext4_bread+0x7c/0x380 [ 63.878648][ T6800] ? ext4_getblk+0x520/0x520 [ 63.883235][ T6800] ? dquot_get_next_dqblk+0x180/0x180 [ 63.889303][ T6800] ext4_append+0x153/0x360 [ 63.893712][ T6800] ext4_mkdir+0x5e0/0xdf0 [ 63.898047][ T6800] ? ext4_rmdir+0xde0/0xde0 [ 63.902544][ T6800] ? security_inode_permission+0xc4/0xf0 [ 63.908190][ T6800] vfs_mkdir+0x419/0x690 [ 63.912434][ T6800] do_mkdirat+0x21e/0x280 [ 63.916765][ T6800] ? __ia32_sys_mknod+0xb0/0xb0 [ 63.921605][ T6800] ? do_syscall_64+0x1c/0xe0 [ 63.926192][ T6800] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 63.932166][ T6800] do_syscall_64+0x60/0xe0 [ 63.936580][ T6800] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 63.942471][ T6800] RIP: 0033:0x4b02a0 [ 63.946369][ T6800] Code: Bad RIP value. [ 63.950514][ T6800] RSP: 002b:000000c0000e34b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 63.958909][ T6800] RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004b02a0 [ 63.966878][ T6800] RDX: 00000000000001c0 RSI: 000000c00009e6c0 RDI: ffffffffffffff9c [ 63.974950][ T6800] RBP: 000000c0000e3510 R08: 0000000000000000 R09: 0000000000000000 [ 63.982937][ T6800] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 63.990899][ T6800] R13: 0000000000000037 R14: 0000000000000036 R15: 0000000000000100 [ 63.998883][ T7] CPU: 0 PID: 7 Comm: kworker/u4:0 Not tainted 5.8.0-rc1-syzkaller #0 [ 64.007059][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.017137][ T7] Workqueue: writeback wb_workfn (flush-8:0) [ 64.023127][ T7] Call Trace: [ 64.026431][ T7] dump_stack+0x18f/0x20d [ 64.030781][ T7] check_preemption_disabled+0x20d/0x220 [ 64.036431][ T7] ext4_mb_new_blocks+0xa4d/0x3b70 [ 64.039168][ T6817] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6817 [ 64.041552][ T7] ? ext4_find_extent+0x81a/0xad0 [ 64.051096][ T6817] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 64.056048][ T7] ? ext4_ext_search_right+0x2ca/0xb20 [ 64.056064][ T7] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 64.056090][ T7] ext4_ext_map_blocks+0x201b/0x33e0 [ 64.056119][ T7] ? ext4_ext_release+0x10/0x10 [ 64.056155][ T7] ? down_write_killable+0x170/0x170 [ 64.088538][ T7] ? ext4_es_lookup_extent+0x41d/0xd10 [ 64.094000][ T7] ext4_map_blocks+0x4cb/0x1640 [ 64.098845][ T7] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 64.104034][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 64.109565][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 64.115527][ T7] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 64.120973][ T7] ext4_writepages+0x1a7b/0x33c0 [ 64.125922][ T7] ? __ext4_mark_inode_dirty+0x940/0x940 [ 64.131539][ T7] ? __lock_acquire+0x2224/0x48b0 [ 64.136562][ T7] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 64.142557][ T7] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 64.148527][ T7] ? __ext4_mark_inode_dirty+0x940/0x940 [ 64.154143][ T7] ? do_writepages+0xfa/0x2a0 [ 64.158815][ T7] do_writepages+0xfa/0x2a0 [ 64.163658][ T7] ? page_writeback_cpu_online+0x10/0x10 [ 64.169283][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 64.174828][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 64.180790][ T7] ? lock_downgrade+0x840/0x840 [ 64.185821][ T7] __writeback_single_inode+0x12a/0x13d0 [ 64.192135][ T7] ? _raw_spin_unlock+0x24/0x40 [ 64.196970][ T7] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 64.203295][ T7] writeback_sb_inodes+0x515/0xdc0 [ 64.208401][ T7] ? __writeback_single_inode+0x13d0/0x13d0 [ 64.214307][ T7] __writeback_inodes_wb+0xc3/0x250 [ 64.219674][ T7] wb_writeback+0x8db/0xd50 [ 64.224176][ T7] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 64.230589][ T7] ? cpumask_next+0x3c/0x40 [ 64.235087][ T7] ? get_nr_dirty_inodes+0xd6/0x130 [ 64.240309][ T7] wb_workfn+0x9bc/0x1090 [ 64.244647][ T7] ? inode_wait_for_writeback+0x30/0x30 [ 64.250190][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 64.255723][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 64.261693][ T7] process_one_work+0x965/0x1690 [ 64.266726][ T7] ? lock_release+0x800/0x800 [ 64.271569][ T7] ? pwq_dec_nr_in_flight+0x310/0x310 [ 64.277019][ T7] ? rwlock_bug.part.0+0x90/0x90 [ 64.281949][ T7] worker_thread+0x96/0xe10 [ 64.286970][ T7] ? process_one_work+0x1690/0x1690 [ 64.292418][ T7] kthread+0x3b5/0x4a0 [ 64.296473][ T7] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 64.302266][ T7] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 64.307973][ T7] ret_from_fork+0x1f/0x30 [ 64.312418][ T6817] CPU: 1 PID: 6817 Comm: syz-executor.0 Not tainted 5.8.0-rc1-syzkaller #0 [ 64.321536][ T6817] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.332031][ T6817] Call Trace: [ 64.335595][ T6817] dump_stack+0x18f/0x20d [ 64.339955][ T6817] check_preemption_disabled+0x20d/0x220 [ 64.345600][ T6817] ext4_mb_new_blocks+0xa4d/0x3b70 [ 64.350735][ T6817] ? ext4_ext_search_right+0x2ca/0xb20 [ 64.356291][ T6817] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 64.362028][ T6817] ext4_ext_map_blocks+0x201b/0x33e0 [ 64.366398][ T7] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:0/7 [ 64.367361][ T6817] ? ext4_ext_release+0x10/0x10 [ 64.376999][ T7] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 64.382752][ T6817] ? down_write_killable+0x170/0x170 [ 64.394025][ T6817] ? ext4_es_lookup_extent+0x41d/0xd10 [ 64.399498][ T6817] ext4_map_blocks+0x4cb/0x1640 [ 64.404363][ T6817] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 64.410595][ T6817] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 64.416138][ T6817] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 64.422101][ T6817] ? prandom_u32_state+0xe/0x170 [ 64.427198][ T6817] ? __brelse+0x84/0xa0 [ 64.431338][ T6817] ? __ext4_new_inode+0x144/0x55e0 [ 64.436979][ T6817] ext4_getblk+0xad/0x520 [ 64.441299][ T6817] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 64.447009][ T6817] ? ext4_free_inode+0x1700/0x1700 [ 64.452286][ T6817] ext4_bread+0x7c/0x380 [ 64.456516][ T6817] ? ext4_getblk+0x520/0x520 [ 64.462351][ T6817] ? dquot_get_next_dqblk+0x180/0x180 [ 64.467721][ T6817] ext4_append+0x153/0x360 [ 64.472156][ T6817] ext4_mkdir+0x5e0/0xdf0 [ 64.476478][ T6817] ? ext4_rmdir+0xde0/0xde0 [ 64.481002][ T6817] ? security_inode_permission+0xc4/0xf0 [ 64.486927][ T6817] vfs_mkdir+0x419/0x690 [ 64.491159][ T6817] do_mkdirat+0x21e/0x280 [ 64.495493][ T6817] ? __ia32_sys_mknod+0xb0/0xb0 [ 64.500352][ T6817] ? do_syscall_64+0x1c/0xe0 [ 64.504945][ T6817] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 64.510914][ T6817] do_syscall_64+0x60/0xe0 [ 64.515322][ T6817] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 64.521223][ T6817] RIP: 0033:0x45bed7 [ 64.525098][ T6817] Code: Bad RIP value. [ 64.529144][ T6817] RSP: 002b:00007ffe4ea260b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 64.537903][ T6817] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bed7 [ 64.545871][ T6817] RDX: 0000000000000003 RSI: 00000000000001c0 RDI: 00007ffe4ea26290 [ 64.553919][ T6817] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000003880 [ 64.561884][ T6817] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 64.570041][ T6817] R13: 00007ffe4ea26290 R14: 8421084210842109 R15: 00007ffe4ea2629c [ 64.578108][ T7] CPU: 0 PID: 7 Comm: kworker/u4:0 Not tainted 5.8.0-rc1-syzkaller #0 [ 64.586272][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.596382][ T7] Workqueue: writeback wb_workfn (flush-8:0) [ 64.602375][ T7] Call Trace: [ 64.605678][ T7] dump_stack+0x18f/0x20d [ 64.610026][ T7] check_preemption_disabled+0x20d/0x220 [ 64.615680][ T7] ext4_mb_new_blocks+0xa4d/0x3b70 [ 64.620803][ T7] ? ext4_find_extent+0x81a/0xad0 [ 64.625855][ T7] ? ext4_ext_search_right+0x2ca/0xb20 [ 64.631334][ T7] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 64.637427][ T7] ext4_ext_map_blocks+0x201b/0x33e0 [ 64.642737][ T7] ? ext4_ext_release+0x10/0x10 [ 64.647624][ T7] ? down_write_killable+0x170/0x170 [ 64.652945][ T7] ? ext4_es_lookup_extent+0x41d/0xd10 [ 64.658452][ T7] ext4_map_blocks+0x4cb/0x1640 [ 64.663673][ T7] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 64.668893][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 64.674456][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 64.680452][ T7] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 64.687013][ T6818] IPVS: ftp: loaded support on port[0] = 21 [ 64.687314][ T7] ext4_writepages+0x1a7b/0x33c0 [ 64.698415][ T7] ? __ext4_mark_inode_dirty+0x940/0x940 [ 64.704063][ T7] ? __lock_acquire+0x2224/0x48b0 [ 64.709206][ T7] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 64.715209][ T7] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 64.721209][ T7] ? __ext4_mark_inode_dirty+0x940/0x940 [ 64.726859][ T7] ? do_writepages+0xfa/0x2a0 [ 64.731553][ T7] do_writepages+0xfa/0x2a0 [ 64.734048][ T6818] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6818 [ 64.736102][ T7] ? page_writeback_cpu_online+0x10/0x10 [ 64.736125][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 64.736142][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 64.736157][ T7] ? lock_downgrade+0x840/0x840 [ 64.736179][ T7] __writeback_single_inode+0x12a/0x13d0 [ 64.736198][ T7] ? _raw_spin_unlock+0x24/0x40 [ 64.736218][ T7] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 64.745618][ T6818] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 64.751367][ T7] writeback_sb_inodes+0x515/0xdc0 [ 64.795908][ T7] ? __writeback_single_inode+0x13d0/0x13d0 [ 64.801811][ T7] __writeback_inodes_wb+0xc3/0x250 [ 64.807193][ T7] wb_writeback+0x8db/0xd50 [ 64.811694][ T7] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 64.818038][ T7] ? cpumask_next+0x3c/0x40 [ 64.822533][ T7] ? get_nr_dirty_inodes+0xd6/0x130 [ 64.827727][ T7] wb_workfn+0x9bc/0x1090 [ 64.832052][ T7] ? inode_wait_for_writeback+0x30/0x30 [ 64.837615][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 64.843148][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 64.849121][ T7] process_one_work+0x965/0x1690 [ 64.854054][ T7] ? lock_release+0x800/0x800 [ 64.858736][ T7] ? pwq_dec_nr_in_flight+0x310/0x310 [ 64.864121][ T7] ? rwlock_bug.part.0+0x90/0x90 [ 64.869063][ T7] worker_thread+0x96/0xe10 [ 64.873564][ T7] ? process_one_work+0x1690/0x1690 [ 64.878752][ T7] kthread+0x3b5/0x4a0 [ 64.882824][ T7] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 64.888546][ T7] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 64.894290][ T7] ret_from_fork+0x1f/0x30 [ 64.898728][ T6818] CPU: 1 PID: 6818 Comm: syz-executor.0 Not tainted 5.8.0-rc1-syzkaller #0 [ 64.907438][ T6818] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.917671][ T6818] Call Trace: [ 64.921097][ T6818] dump_stack+0x18f/0x20d [ 64.925625][ T6818] check_preemption_disabled+0x20d/0x220 [ 64.931280][ T6818] ext4_mb_new_blocks+0xa4d/0x3b70 [ 64.936448][ T6818] ? ext4_ext_search_right+0x2ca/0xb20 [ 64.941926][ T6818] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 64.947680][ T6818] ext4_ext_map_blocks+0x201b/0x33e0 [ 64.953123][ T6818] ? ext4_ext_release+0x10/0x10 [ 64.957986][ T6818] ? down_write_killable+0x170/0x170 [ 64.963274][ T6818] ? ext4_es_lookup_extent+0x41d/0xd10 [ 64.968829][ T6818] ext4_map_blocks+0x4cb/0x1640 [ 64.973689][ T6818] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 64.978883][ T6818] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 64.984563][ T6818] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 64.990533][ T6818] ? prandom_u32_state+0xe/0x170 [ 64.995596][ T6818] ? __brelse+0x84/0xa0 [ 64.999750][ T6818] ? __ext4_new_inode+0x144/0x55e0 [ 65.005027][ T6818] ext4_getblk+0xad/0x520 [ 65.009367][ T6818] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 65.015223][ T6818] ? ext4_free_inode+0x1700/0x1700 [ 65.020428][ T6818] ext4_bread+0x7c/0x380 [ 65.024656][ T6818] ? ext4_getblk+0x520/0x520 [ 65.029234][ T6818] ? dquot_get_next_dqblk+0x180/0x180 [ 65.034963][ T6818] ext4_append+0x153/0x360 [ 65.039367][ T6818] ext4_mkdir+0x5e0/0xdf0 [ 65.043693][ T6818] ? ext4_rmdir+0xde0/0xde0 [ 65.048268][ T6818] ? security_inode_permission+0xc4/0xf0 [ 65.053883][ T6818] vfs_mkdir+0x419/0x690 [ 65.058150][ T6818] do_mkdirat+0x21e/0x280 [ 65.062468][ T6818] ? __ia32_sys_mknod+0xb0/0xb0 [ 65.067302][ T6818] ? do_syscall_64+0x1c/0xe0 [ 65.071886][ T6818] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 65.077933][ T6818] do_syscall_64+0x60/0xe0 [ 65.082334][ T6818] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 65.088214][ T6818] RIP: 0033:0x45bed7 [ 65.092108][ T6818] Code: Bad RIP value. [ 65.096164][ T6818] RSP: 002b:0000000000c9ffa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 65.104595][ T6818] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bed7 [ 65.112548][ T6818] RDX: 0000000000000006 RSI: 00000000000001ff RDI: 00000000004c26c2 [ 65.120612][ T6818] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000006 [ 65.128563][ T6818] R10: 0000000000000064 R11: 0000000000000246 R12: 00000000004185c0 [ 65.136529][ T6818] R13: 00007ffe4ea26418 R14: 0000000000000000 R15: 0000000000000000 2020/06/15 17:38:12 building call list... [ 65.434313][ T635] tipc: TX() has been purged, node left! [ 65.966534][ T635] ================================================================== [ 65.974798][ T635] BUG: KASAN: use-after-free in afs_wake_up_async_call+0x6aa/0x770 [ 65.982683][ T635] Write of size 1 at addr ffff8880949af9e4 by task kworker/u4:5/635 [ 65.990657][ T635] [ 65.992988][ T635] CPU: 1 PID: 635 Comm: kworker/u4:5 Not tainted 5.8.0-rc1-syzkaller #0 [ 66.001301][ T635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.011355][ T635] Workqueue: netns cleanup_net [ 66.016139][ T635] Call Trace: [ 66.019431][ T635] dump_stack+0x18f/0x20d [ 66.023762][ T635] ? afs_wake_up_async_call+0x6aa/0x770 [ 66.029303][ T635] ? afs_wake_up_async_call+0x6aa/0x770 [ 66.034840][ T635] ? afs_put_call+0xa40/0xa40 [ 66.039517][ T635] print_address_description.constprop.0.cold+0xd3/0x413 [ 66.046543][ T635] ? vprintk_func+0x97/0x1a6 [ 66.051133][ T635] ? afs_wake_up_async_call+0x6aa/0x770 [ 66.056698][ T635] kasan_report.cold+0x1f/0x37 [ 66.061464][ T635] ? rcu_read_lock_held_common+0x51/0xa0 [ 66.067090][ T635] ? afs_wake_up_async_call+0x6aa/0x770 [ 66.072644][ T635] afs_wake_up_async_call+0x6aa/0x770 [ 66.078097][ T635] ? afs_close_socket+0x320/0x320 [ 66.083122][ T635] ? afs_put_call+0xa40/0xa40 [ 66.087794][ T635] rxrpc_notify_socket+0x1db/0x5d0 [ 66.092905][ T635] ? afs_put_call+0xa40/0xa40 [ 66.097585][ T635] __rxrpc_set_call_completion.part.0+0x172/0x410 [ 66.103998][ T635] rxrpc_call_completed+0xca/0xf0 [ 66.109029][ T635] rxrpc_discard_prealloc+0x781/0xab0 [ 66.114429][ T635] ? lock_sock_nested+0x94/0x110 [ 66.121452][ T635] rxrpc_listen+0x147/0x360 [ 66.125956][ T635] afs_close_socket+0x95/0x320 [ 66.131285][ T635] ? afs_purge_servers+0x16d/0x300 [ 66.136421][ T635] ? afs_rx_discard_new_call+0x50/0x50 [ 66.141882][ T635] ? init_wait_var_entry+0x200/0x200 [ 66.147170][ T635] ? rcu_read_lock_held_common+0xa0/0xa0 [ 66.153774][ T635] ? check_preemption_disabled+0x38/0x220 [ 66.159517][ T635] afs_net_exit+0x1bc/0x310 [ 66.164018][ T635] ? afs_net_init+0xe30/0xe30 [ 66.168691][ T635] ops_exit_list.isra.0+0xa8/0x150 [ 66.173802][ T635] cleanup_net+0x511/0xa50 [ 66.178228][ T635] ? unregister_pernet_device+0x70/0x70 [ 66.185351][ T635] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 66.191340][ T635] process_one_work+0x965/0x1690 [ 66.196289][ T635] ? lock_release+0x800/0x800 [ 66.202444][ T635] ? pwq_dec_nr_in_flight+0x310/0x310 [ 66.208086][ T635] ? rwlock_bug.part.0+0x90/0x90 [ 66.213120][ T635] worker_thread+0x96/0xe10 [ 66.217668][ T635] ? process_one_work+0x1690/0x1690 [ 66.222873][ T635] kthread+0x3b5/0x4a0 [ 66.226982][ T635] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 66.232717][ T635] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 66.238450][ T635] ret_from_fork+0x1f/0x30 [ 66.242901][ T635] [ 66.245238][ T635] Allocated by task 6818: [ 66.249566][ T635] save_stack+0x1b/0x40 [ 66.253718][ T635] __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 66.259457][ T635] kmem_cache_alloc_trace+0x153/0x7d0 [ 66.265045][ T635] afs_alloc_call+0x55/0x630 [ 66.269744][ T635] afs_charge_preallocation+0xe9/0x2d0 [ 66.275201][ T635] afs_open_socket+0x292/0x360 [ 66.279977][ T635] afs_net_init+0xa6c/0xe30 [ 66.284486][ T635] ops_init+0xaf/0x420 [ 66.288551][ T635] setup_net+0x2de/0x860 [ 66.292797][ T635] copy_net_ns+0x293/0x590 [ 66.297645][ T635] create_new_namespaces+0x3fb/0xb30 [ 66.302926][ T635] unshare_nsproxy_namespaces+0xbd/0x1f0 [ 66.308564][ T635] ksys_unshare+0x43d/0x8e0 [ 66.313064][ T635] __x64_sys_unshare+0x2d/0x40 [ 66.317822][ T635] do_syscall_64+0x60/0xe0 [ 66.322325][ T635] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 66.328310][ T635] [ 66.330911][ T635] Freed by task 635: [ 66.334805][ T635] save_stack+0x1b/0x40 [ 66.338995][ T635] __kasan_slab_free+0xf7/0x140 [ 66.343849][ T635] kfree+0x109/0x2b0 [ 66.347746][ T635] afs_put_call+0x585/0xa40 [ 66.352262][ T635] rxrpc_discard_prealloc+0x764/0xab0 [ 66.357638][ T635] rxrpc_listen+0x147/0x360 [ 66.362141][ T635] afs_close_socket+0x95/0x320 [ 66.366901][ T635] afs_net_exit+0x1bc/0x310 [ 66.371397][ T635] ops_exit_list.isra.0+0xa8/0x150 [ 66.376503][ T635] cleanup_net+0x511/0xa50 [ 66.380918][ T635] process_one_work+0x965/0x1690 [ 66.386061][ T635] worker_thread+0x96/0xe10 [ 66.390602][ T635] kthread+0x3b5/0x4a0 [ 66.394699][ T635] ret_from_fork+0x1f/0x30 [ 66.399143][ T635] [ 66.401489][ T635] The buggy address belongs to the object at ffff8880949af800 [ 66.401489][ T635] which belongs to the cache kmalloc-1k of size 1024 [ 66.415653][ T635] The buggy address is located 484 bytes inside of [ 66.415653][ T635] 1024-byte region [ffff8880949af800, ffff8880949afc00) [ 66.429611][ T635] The buggy address belongs to the page: [ 66.435246][ T635] page:ffffea0002526bc0 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff8880949af000 [ 66.445736][ T635] flags: 0xfffe0000000200(slab) [ 66.450587][ T635] raw: 00fffe0000000200 ffffea0002a39808 ffffea0002478308 ffff8880aa000c40 [ 66.460388][ T635] raw: ffff8880949af000 ffff8880949af000 0000000100000001 0000000000000000 [ 66.468962][ T635] page dumped because: kasan: bad access detected [ 66.475364][ T635] [ 66.477772][ T635] Memory state around the buggy address: [ 66.483401][ T635] ffff8880949af880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 66.491477][ T635] ffff8880949af900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 66.499559][ T635] >ffff8880949af980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 66.507629][ T635] ^ [ 66.514820][ T635] ffff8880949afa00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 66.522885][ T635] ffff8880949afa80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 66.530937][ T635] ================================================================== [ 66.538990][ T635] Disabling lock debugging due to kernel taint [ 66.545209][ T635] Kernel panic - not syncing: panic_on_warn set ... [ 66.551796][ T635] CPU: 1 PID: 635 Comm: kworker/u4:5 Tainted: G B 5.8.0-rc1-syzkaller #0 [ 66.561596][ T635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.572034][ T635] Workqueue: netns cleanup_net [ 66.576800][ T635] Call Trace: [ 66.582878][ T635] dump_stack+0x18f/0x20d [ 66.587396][ T635] ? afs_wake_up_async_call+0x670/0x770 [ 66.593119][ T635] ? afs_put_call+0xa40/0xa40 [ 66.597805][ T635] panic+0x2e3/0x75c [ 66.601710][ T635] ? __warn_printk+0xf3/0xf3 [ 66.606312][ T635] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 66.612463][ T635] ? trace_hardirqs_on+0x55/0x220 [ 66.617630][ T635] ? afs_wake_up_async_call+0x6aa/0x770 [ 66.623669][ T635] ? afs_wake_up_async_call+0x6aa/0x770 [ 66.629203][ T635] ? afs_put_call+0xa40/0xa40 [ 66.633883][ T635] end_report+0x4d/0x53 [ 66.638427][ T635] kasan_report.cold+0xd/0x37 [ 66.643377][ T635] ? rcu_read_lock_held_common+0x51/0xa0 [ 66.648998][ T635] ? afs_wake_up_async_call+0x6aa/0x770 [ 66.654532][ T635] afs_wake_up_async_call+0x6aa/0x770 [ 66.659946][ T635] ? afs_close_socket+0x320/0x320 [ 66.664971][ T635] ? afs_put_call+0xa40/0xa40 [ 66.669656][ T635] rxrpc_notify_socket+0x1db/0x5d0 [ 66.675020][ T635] ? afs_put_call+0xa40/0xa40 [ 66.679689][ T635] __rxrpc_set_call_completion.part.0+0x172/0x410 [ 66.686178][ T635] rxrpc_call_completed+0xca/0xf0 [ 66.691192][ T635] rxrpc_discard_prealloc+0x781/0xab0 [ 66.696569][ T635] ? lock_sock_nested+0x94/0x110 [ 66.701648][ T635] rxrpc_listen+0x147/0x360 [ 66.706151][ T635] afs_close_socket+0x95/0x320 [ 66.710918][ T635] ? afs_purge_servers+0x16d/0x300 [ 66.716026][ T635] ? afs_rx_discard_new_call+0x50/0x50 [ 66.721473][ T635] ? init_wait_var_entry+0x200/0x200 [ 66.727283][ T635] ? rcu_read_lock_held_common+0xa0/0xa0 [ 66.732907][ T635] ? check_preemption_disabled+0x38/0x220 [ 66.738634][ T635] afs_net_exit+0x1bc/0x310 [ 66.743128][ T635] ? afs_net_init+0xe30/0xe30 [ 66.747816][ T635] ops_exit_list.isra.0+0xa8/0x150 [ 66.752918][ T635] cleanup_net+0x511/0xa50 [ 66.757536][ T635] ? unregister_pernet_device+0x70/0x70 [ 66.763102][ T635] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 66.769097][ T635] process_one_work+0x965/0x1690 [ 66.774021][ T635] ? lock_release+0x800/0x800 [ 66.778815][ T635] ? pwq_dec_nr_in_flight+0x310/0x310 [ 66.784191][ T635] ? rwlock_bug.part.0+0x90/0x90 [ 66.789262][ T635] worker_thread+0x96/0xe10 [ 66.793823][ T635] ? process_one_work+0x1690/0x1690 [ 66.799023][ T635] kthread+0x3b5/0x4a0 [ 66.803102][ T635] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 66.808822][ T635] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 66.814727][ T635] ret_from_fork+0x1f/0x30 [ 66.819846][ T635] Kernel Offset: disabled [ 66.824168][ T635] Rebooting in 86400 seconds..