[....] Starting enhanced syslogd: rsyslogd[ 13.579239] audit: type=1400 audit(1515910917.858:5): avc: denied { syslog } for pid=3502 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 22.310895] audit: type=1400 audit(1515910926.590:6): avc: denied { map } for pid=3643 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.0.18' (ECDSA) to the list of known hosts. executing program [ 28.586512] audit: type=1400 audit(1515910932.866:7): avc: denied { map } for pid=3658 comm="syzkaller995118" path="/root/syzkaller995118193" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 28.588340] syzkaller995118 uses obsolete (PF_INET,SOCK_PACKET) [ 28.589531] device lo entered promiscuous mode [ 29.600227] ================================================================== [ 29.607658] BUG: KASAN: use-after-free in ip6_xmit+0x2048/0x2090 [ 29.613782] Read of size 8 at addr ffff8801bcd78e98 by task swapper/0/0 [ 29.620531] [ 29.622132] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.15.0-rc7+ #171 [ 29.628764] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.638089] Call Trace: [ 29.640644] [ 29.642782] dump_stack+0x194/0x257 [ 29.646383] ? arch_local_irq_restore+0x53/0x53 [ 29.651025] ? show_regs_print_info+0x18/0x18 [ 29.655499] ? ip6_xmit+0x2048/0x2090 [ 29.659277] print_address_description+0x73/0x250 [ 29.664091] ? ip6_xmit+0x2048/0x2090 [ 29.667872] kasan_report+0x25b/0x340 [ 29.671662] __asan_report_load8_noabort+0x14/0x20 [ 29.676564] ip6_xmit+0x2048/0x2090 [ 29.680175] ? __sk_dst_check+0x1a5/0x380 [ 29.684314] ? ip6_finish_output2+0x23a0/0x23a0 [ 29.688957] ? fl6_update_dst+0x127/0x2b0 [ 29.693087] ? check_noncircular+0x20/0x20 [ 29.697295] ? inet6_csk_route_socket+0x691/0xe80 [ 29.702114] ? lock_acquire+0x1d5/0x580 [ 29.706064] ? memcpy+0x45/0x50 [ 29.709313] ? lock_acquire+0x1d5/0x580 [ 29.713265] ? inet6_csk_xmit+0x114/0x580 [ 29.717391] ? lock_release+0xa40/0xa40 [ 29.721343] ? __lock_is_held+0xb6/0x140 [ 29.725395] inet6_csk_xmit+0x2fc/0x580 [ 29.729342] ? inet6_csk_update_pmtu+0x160/0x160 [ 29.734072] ? rt_cpu_seq_show+0x2c0/0x2c0 [ 29.738280] ? refcount_add_not_zero+0x133/0x200 [ 29.743111] tcp_transmit_skb+0x1b1b/0x38c0 [ 29.747405] ? sk_wait_data+0x610/0x610 [ 29.751450] ? __tcp_select_window+0x900/0x900 [ 29.756013] ? ipv4_mtu+0x34d/0x4c0 [ 29.759611] ? rt_cpu_seq_show+0x2c0/0x2c0 [ 29.763828] ? tcp_v6_md5_lookup+0x23/0x30 [ 29.768037] ? tcp_established_options+0x2c5/0x420 [ 29.772949] ? tcp_current_mss+0x254/0x380 [ 29.777158] ? tcp_mtu_to_mss+0x460/0x460 [ 29.781277] ? lock_downgrade+0x980/0x980 [ 29.785417] ? unwind_next_frame.part.6+0x1a6/0xb40 [ 29.790421] ? rcutorture_record_progress+0x10/0x10 [ 29.795423] __tcp_retransmit_skb+0x684/0x2700 [ 29.799977] ? is_bpf_text_address+0xa4/0x120 [ 29.804445] ? x86_64_start_kernel+0x77/0x7a [ 29.808843] ? kernel_text_address+0x102/0x140 [ 29.813396] ? x86_64_start_kernel+0x77/0x7a [ 29.817789] ? tcp_skb_collapse_tstamp+0x360/0x360 [ 29.822695] ? add_lock_to_list.isra.28+0x24d/0x352 [ 29.827692] ? print_lockdep_cache.isra.31+0x109/0x109 [ 29.832948] ? save_stack_trace+0x1a/0x20 [ 29.837071] ? save_trace+0xe0/0x2b0 [ 29.840761] ? __lock_acquire+0x36c0/0x3e00 [ 29.845071] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 29.850239] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 29.855407] ? jiffies_to_msecs+0xd/0x20 [ 29.859443] ? bictcp_state+0x433/0x500 [ 29.863393] ? bictcp_cwnd_event+0x120/0x120 [ 29.867777] ? tcp_enter_loss+0xb54/0xff0 [ 29.871908] tcp_retransmit_skb+0x2e/0x230 [ 29.876131] tcp_retransmit_timer+0xd0e/0x2a00 [ 29.880696] ? task_prio+0x40/0x40 [ 29.884219] ? tcp_delack_timer+0x220/0x220 [ 29.888518] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 29.893698] ? pvclock_read_flags+0x160/0x160 [ 29.898163] ? check_noncircular+0x20/0x20 [ 29.902373] ? lock_acquire+0x1d5/0x580 [ 29.906332] ? lock_acquire+0x1d5/0x580 [ 29.910286] ? kvm_sched_clock_read+0x25/0x40 [ 29.914757] ? sched_clock+0x31/0x40 [ 29.918443] ? sched_clock_cpu+0x1b/0x170 [ 29.922562] ? lock_release+0xa40/0xa40 [ 29.926521] tcp_write_timer_handler+0x335/0x820 [ 29.931251] ? tcp_retransmit_timer+0x2a00/0x2a00 [ 29.936076] tcp_write_timer+0x152/0x170 [ 29.940116] call_timer_fn+0x228/0x820 [ 29.943984] ? tcp_write_timer_handler+0x820/0x820 [ 29.948884] ? process_timeout+0x40/0x40 [ 29.952921] ? __run_timers+0x7e3/0xb70 [ 29.956868] ? lock_downgrade+0x980/0x980 [ 29.961021] ? debug_object_deactivate+0x364/0x560 [ 29.965927] ? lock_release+0xa40/0xa40 [ 29.969881] ? do_raw_spin_trylock+0x190/0x190 [ 29.974440] ? trace_hardirqs_on_caller+0x19e/0x5c0 [ 29.979428] ? tcp_write_timer_handler+0x820/0x820 [ 29.984329] ? tcp_write_timer_handler+0x820/0x820 [ 29.989240] __run_timers+0x7ee/0xb70 [ 29.993024] ? trigger_dyntick_cpu.isra.29+0x180/0x180 [ 29.998279] ? check_noncircular+0x20/0x20 [ 30.002487] ? lock_acquire+0x1d5/0x580 [ 30.006434] ? lock_acquire+0x1d5/0x580 [ 30.010383] ? __hrtimer_run_queues+0x394/0xe20 [ 30.015035] ? lock_release+0xa40/0xa40 [ 30.018989] ? find_held_lock+0x35/0x1d0 [ 30.023035] ? clockevents_program_event+0x163/0x2e0 [ 30.028110] ? lock_downgrade+0x980/0x980 [ 30.032240] ? rcu_pm_notify+0xc0/0xc0 [ 30.036115] run_timer_softirq+0x4c/0x70 [ 30.040150] __do_softirq+0x2d7/0xb85 [ 30.043926] ? lock_downgrade+0x980/0x980 [ 30.048051] ? __irqentry_text_end+0x1f8d74/0x1f8d74 [ 30.053125] ? do_timer+0x50/0x50 [ 30.056551] ? native_apic_msr_write+0x5c/0x80 [ 30.061105] ? do_raw_spin_trylock+0x190/0x190 [ 30.065672] ? lapic_next_event+0x54/0x80 [ 30.069805] ? clockevents_program_event+0x108/0x2e0 [ 30.074889] ? tick_program_event+0x83/0x100 [ 30.079278] ? hrtimer_interrupt+0x46e/0x5e0 [ 30.083667] ? rcu_pm_notify+0xc0/0xc0 [ 30.087541] irq_exit+0x1cc/0x200 [ 30.090970] smp_apic_timer_interrupt+0x16b/0x700 [ 30.095783] ? smp_reschedule_interrupt+0xe6/0x670 [ 30.100694] ? smp_call_function_single_interrupt+0x640/0x640 [ 30.106563] ? _raw_spin_lock+0x32/0x40 [ 30.110515] ? _raw_spin_unlock+0x22/0x30 [ 30.114635] ? handle_edge_irq+0x2b4/0x7c0 [ 30.118852] ? task_prio+0x40/0x40 [ 30.122374] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.127202] apic_timer_interrupt+0xa9/0xb0 [ 30.131493] [ 30.133704] RIP: 0010:native_safe_halt+0x6/0x10 [ 30.138341] RSP: 0018:ffffffff86807c38 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff11 [ 30.146025] RAX: dffffc0000000000 RBX: 1ffffffff0d00f8a RCX: 0000000000000000 [ 30.153277] RDX: 1ffffffff0d19080 RSI: 0000000000000001 RDI: ffffffff868c8400 [ 30.160523] RBP: ffffffff86807c38 R08: ffffffff8666eae0 R09: 0000000000000000 [ 30.167773] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 30.175015] R13: ffffffff86807cf0 R14: ffffffff87037160 R15: 0000000000000000 [ 30.182280] ? trace_hardirqs_on+0xd/0x10 [ 30.186403] default_idle+0xbf/0x460 [ 30.190090] ? __sched_text_end+0x4/0x4 [ 30.194047] ? tick_nohz_idle_enter+0x125/0x220 [ 30.198694] arch_cpu_idle+0xa/0x10 [ 30.202296] default_idle_call+0x36/0x90 [ 30.206343] do_idle+0x24a/0x3b0 [ 30.209687] cpu_startup_entry+0x104/0x120 [ 30.213897] ? cpu_in_idle+0x20/0x20 [ 30.217589] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 30.222587] ? trace_hardirqs_on+0xd/0x10 [ 30.226727] rest_init+0xed/0xf0 [ 30.230071] start_kernel+0x7f1/0x819 [ 30.233849] ? mem_encrypt_init+0xb/0xb [ 30.237798] ? early_idt_handler_common+0x3b/0x60 [ 30.242624] ? x86_family+0x32/0x40 [ 30.246237] x86_64_start_reservations+0x2a/0x2c [ 30.250965] x86_64_start_kernel+0x77/0x7a [ 30.255170] secondary_startup_64+0xa5/0xb0 [ 30.259475] [ 30.261076] Allocated by task 3658: [ 30.264693] save_stack+0x43/0xd0 [ 30.268116] kasan_kmalloc+0xad/0xe0 [ 30.271798] kasan_slab_alloc+0x12/0x20 [ 30.275748] kmem_cache_alloc+0x12e/0x760 [ 30.279867] dst_alloc+0x11f/0x1a0 [ 30.283379] rt_dst_alloc+0xe9/0x540 [ 30.287065] ip_route_output_key_hash_rcu+0xa40/0x2c40 [ 30.292313] ip_route_output_key_hash+0x20b/0x370 [ 30.297128] tcp_v4_connect+0x11ac/0x1e80 [ 30.301248] __inet_stream_connect+0x2d4/0xf00 [ 30.305800] tcp_sendmsg_locked+0x280e/0x3b60 [ 30.310275] tcp_sendmsg+0x2f/0x50 [ 30.313784] inet_sendmsg+0x11f/0x5e0 [ 30.317557] sock_sendmsg+0xca/0x110 [ 30.321240] ___sys_sendmsg+0x320/0x8b0 [ 30.325193] __sys_sendmmsg+0x31b/0x620 [ 30.329139] compat_SyS_sendmmsg+0x32/0x40 [ 30.333345] do_fast_syscall_32+0x3ee/0xf9d [ 30.337638] entry_SYSENTER_compat+0x54/0x63 [ 30.342024] [ 30.343622] Freed by task 0: [ 30.346611] save_stack+0x43/0xd0 [ 30.350034] kasan_slab_free+0x71/0xc0 [ 30.353889] kmem_cache_free+0x83/0x2a0 [ 30.357834] dst_destroy+0x216/0x330 [ 30.361516] dst_destroy_rcu+0x16/0x20 [ 30.365377] rcu_process_callbacks+0xd6c/0x17f0 [ 30.370030] __do_softirq+0x2d7/0xb85 [ 30.373810] [ 30.375411] The buggy address belongs to the object at ffff8801bcd78e80 [ 30.375411] which belongs to the cache ip_dst_cache of size 216 [ 30.388136] The buggy address is located 24 bytes inside of [ 30.388136] 216-byte region [ffff8801bcd78e80, ffff8801bcd78f58) [ 30.399904] The buggy address belongs to the page: [ 30.404807] page:ffffea0006f35e00 count:1 mapcount:0 mapping:ffff8801bcd780c0 index:0x0 [ 30.412927] flags: 0x2fffc0000000100(slab) [ 30.417137] raw: 02fffc0000000100 ffff8801bcd780c0 0000000000000000 000000010000000c [ 30.424998] raw: ffffea0007133320 ffff8801d6cbc648 ffff8801d6fadb00 0000000000000000 [ 30.432868] page dumped because: kasan: bad access detected [ 30.438555] [ 30.440153] Memory state around the buggy address: [ 30.445054] ffff8801bcd78d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 30.452385] ffff8801bcd78e00: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.459728] >ffff8801bcd78e80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 30.467057] ^ [ 30.471175] ffff8801bcd78f00: fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc [ 30.478509] ffff8801bcd78f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.485838] ================================================================== [ 30.493168] Disabling lock debugging due to kernel taint [ 30.498610] Kernel panic - not syncing: panic_on_warn set ... [ 30.498610] [ 30.505967] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G B 4.15.0-rc7+ #171 [ 30.513932] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.523257] Call Trace: [ 30.525809] [ 30.527936] dump_stack+0x194/0x257 [ 30.531541] ? arch_local_irq_restore+0x53/0x53 [ 30.536182] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 30.540915] ? vsnprintf+0x1ed/0x1900 [ 30.544694] ? ip6_xmit+0x2030/0x2090 [ 30.548464] panic+0x1e4/0x41c [ 30.551628] ? refcount_error_report+0x214/0x214 [ 30.556353] ? add_taint+0x1c/0x50 [ 30.559865] ? add_taint+0x1c/0x50 [ 30.563385] ? ip6_xmit+0x2048/0x2090 [ 30.567163] kasan_end_report+0x50/0x50 [ 30.571111] kasan_report+0x144/0x340 [ 30.574884] __asan_report_load8_noabort+0x14/0x20 [ 30.579810] ip6_xmit+0x2048/0x2090 [ 30.583415] ? __sk_dst_check+0x1a5/0x380 [ 30.587539] ? ip6_finish_output2+0x23a0/0x23a0 [ 30.592189] ? fl6_update_dst+0x127/0x2b0 [ 30.596321] ? check_noncircular+0x20/0x20 [ 30.600537] ? inet6_csk_route_socket+0x691/0xe80 [ 30.605355] ? lock_acquire+0x1d5/0x580 [ 30.609304] ? memcpy+0x45/0x50 [ 30.612556] ? lock_acquire+0x1d5/0x580 [ 30.616505] ? inet6_csk_xmit+0x114/0x580 [ 30.620627] ? lock_release+0xa40/0xa40 [ 30.624584] ? __lock_is_held+0xb6/0x140 [ 30.628639] inet6_csk_xmit+0x2fc/0x580 [ 30.632594] ? inet6_csk_update_pmtu+0x160/0x160 [ 30.637334] ? rt_cpu_seq_show+0x2c0/0x2c0 [ 30.641551] ? refcount_add_not_zero+0x133/0x200 [ 30.646300] tcp_transmit_skb+0x1b1b/0x38c0 [ 30.650601] ? sk_wait_data+0x610/0x610 [ 30.654553] ? __tcp_select_window+0x900/0x900 [ 30.659111] ? ipv4_mtu+0x34d/0x4c0 [ 30.662707] ? rt_cpu_seq_show+0x2c0/0x2c0 [ 30.666928] ? tcp_v6_md5_lookup+0x23/0x30 [ 30.671136] ? tcp_established_options+0x2c5/0x420 [ 30.676038] ? tcp_current_mss+0x254/0x380 [ 30.680244] ? tcp_mtu_to_mss+0x460/0x460 [ 30.684374] ? lock_downgrade+0x980/0x980 [ 30.688498] ? unwind_next_frame.part.6+0x1a6/0xb40 [ 30.693496] ? rcutorture_record_progress+0x10/0x10 [ 30.698488] __tcp_retransmit_skb+0x684/0x2700 [ 30.703043] ? is_bpf_text_address+0xa4/0x120 [ 30.707508] ? x86_64_start_kernel+0x77/0x7a [ 30.711896] ? kernel_text_address+0x102/0x140 [ 30.716458] ? x86_64_start_kernel+0x77/0x7a [ 30.720844] ? tcp_skb_collapse_tstamp+0x360/0x360 [ 30.725752] ? add_lock_to_list.isra.28+0x24d/0x352 [ 30.730739] ? print_lockdep_cache.isra.31+0x109/0x109 [ 30.735994] ? save_stack_trace+0x1a/0x20 [ 30.740122] ? save_trace+0xe0/0x2b0 [ 30.743815] ? __lock_acquire+0x36c0/0x3e00 [ 30.748117] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 30.753278] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 30.758442] ? jiffies_to_msecs+0xd/0x20 [ 30.762474] ? bictcp_state+0x433/0x500 [ 30.766418] ? bictcp_cwnd_event+0x120/0x120 [ 30.770809] ? tcp_enter_loss+0xb54/0xff0 [ 30.774933] tcp_retransmit_skb+0x2e/0x230 [ 30.779147] tcp_retransmit_timer+0xd0e/0x2a00 [ 30.783701] ? task_prio+0x40/0x40 [ 30.787218] ? tcp_delack_timer+0x220/0x220 [ 30.791521] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 30.796700] ? pvclock_read_flags+0x160/0x160 [ 30.801164] ? check_noncircular+0x20/0x20 [ 30.805371] ? lock_acquire+0x1d5/0x580 [ 30.809312] ? lock_acquire+0x1d5/0x580 [ 30.813261] ? kvm_sched_clock_read+0x25/0x40 [ 30.817726] ? sched_clock+0x31/0x40 [ 30.821417] ? sched_clock_cpu+0x1b/0x170 [ 30.825541] ? lock_release+0xa40/0xa40 [ 30.829499] tcp_write_timer_handler+0x335/0x820 [ 30.834233] ? tcp_retransmit_timer+0x2a00/0x2a00 [ 30.839052] tcp_write_timer+0x152/0x170 [ 30.843093] call_timer_fn+0x228/0x820 [ 30.846951] ? tcp_write_timer_handler+0x820/0x820 [ 30.851852] ? process_timeout+0x40/0x40 [ 30.855886] ? __run_timers+0x7e3/0xb70 [ 30.859840] ? lock_downgrade+0x980/0x980 [ 30.863963] ? debug_object_deactivate+0x364/0x560 [ 30.868862] ? lock_release+0xa40/0xa40 [ 30.872811] ? do_raw_spin_trylock+0x190/0x190 [ 30.877374] ? trace_hardirqs_on_caller+0x19e/0x5c0 [ 30.882363] ? tcp_write_timer_handler+0x820/0x820 [ 30.887263] ? tcp_write_timer_handler+0x820/0x820 [ 30.892166] __run_timers+0x7ee/0xb70 [ 30.895944] ? trigger_dyntick_cpu.isra.29+0x180/0x180 [ 30.901191] ? check_noncircular+0x20/0x20 [ 30.905399] ? lock_acquire+0x1d5/0x580 [ 30.909351] ? lock_acquire+0x1d5/0x580 [ 30.913294] ? __hrtimer_run_queues+0x394/0xe20 [ 30.917937] ? lock_release+0xa40/0xa40 [ 30.921887] ? find_held_lock+0x35/0x1d0 [ 30.925935] ? clockevents_program_event+0x163/0x2e0 [ 30.931025] ? lock_downgrade+0x980/0x980 [ 30.935157] ? rcu_pm_notify+0xc0/0xc0 [ 30.939029] run_timer_softirq+0x4c/0x70 [ 30.943063] __do_softirq+0x2d7/0xb85 [ 30.946838] ? lock_downgrade+0x980/0x980 [ 30.950962] ? __irqentry_text_end+0x1f8d74/0x1f8d74 [ 30.956045] ? do_timer+0x50/0x50 [ 30.959470] ? native_apic_msr_write+0x5c/0x80 [ 30.964025] ? do_raw_spin_trylock+0x190/0x190 [ 30.968590] ? lapic_next_event+0x54/0x80 [ 30.972710] ? clockevents_program_event+0x108/0x2e0 [ 30.977786] ? tick_program_event+0x83/0x100 [ 30.982168] ? hrtimer_interrupt+0x46e/0x5e0 [ 30.986551] ? rcu_pm_notify+0xc0/0xc0 [ 30.990416] irq_exit+0x1cc/0x200 [ 30.993849] smp_apic_timer_interrupt+0x16b/0x700 [ 30.998666] ? smp_reschedule_interrupt+0xe6/0x670 [ 31.003567] ? smp_call_function_single_interrupt+0x640/0x640 [ 31.009423] ? _raw_spin_lock+0x32/0x40 [ 31.013374] ? _raw_spin_unlock+0x22/0x30 [ 31.017491] ? handle_edge_irq+0x2b4/0x7c0 [ 31.021702] ? task_prio+0x40/0x40 [ 31.025221] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 31.030038] apic_timer_interrupt+0xa9/0xb0 [ 31.034339] [ 31.036549] RIP: 0010:native_safe_halt+0x6/0x10 [ 31.041187] RSP: 0018:ffffffff86807c38 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff11 [ 31.048866] RAX: dffffc0000000000 RBX: 1ffffffff0d00f8a RCX: 0000000000000000 [ 31.056108] RDX: 1ffffffff0d19080 RSI: 0000000000000001 RDI: ffffffff868c8400 [ 31.063361] RBP: ffffffff86807c38 R08: ffffffff8666eae0 R09: 0000000000000000 [ 31.070607] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 31.077854] R13: ffffffff86807cf0 R14: ffffffff87037160 R15: 0000000000000000 [ 31.085116] ? trace_hardirqs_on+0xd/0x10 [ 31.089235] default_idle+0xbf/0x460 [ 31.092918] ? __sched_text_end+0x4/0x4 [ 31.096872] ? tick_nohz_idle_enter+0x125/0x220 [ 31.101513] arch_cpu_idle+0xa/0x10 [ 31.105115] default_idle_call+0x36/0x90 [ 31.109154] do_idle+0x24a/0x3b0 [ 31.112494] cpu_startup_entry+0x104/0x120 [ 31.116707] ? cpu_in_idle+0x20/0x20 [ 31.120407] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 31.125393] ? trace_hardirqs_on+0xd/0x10 [ 31.129513] rest_init+0xed/0xf0 [ 31.132858] start_kernel+0x7f1/0x819 [ 31.136629] ? mem_encrypt_init+0xb/0xb [ 31.140575] ? early_idt_handler_common+0x3b/0x60 [ 31.145393] ? x86_family+0x32/0x40 [ 31.148995] x86_64_start_reservations+0x2a/0x2c [ 31.153726] x86_64_start_kernel+0x77/0x7a [ 31.157931] secondary_startup_64+0xa5/0xb0 [ 31.162678] Dumping ftrace buffer: [ 31.166198] (ftrace buffer empty) [ 31.169880] Kernel Offset: disabled [ 31.173482] Rebooting in 86400 seconds..