INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.34' (ECDSA) to the list of known hosts. net.ipv6.conf.syz_tun.accept_dad = 0 syzkaller login: [ 34.486874] IPVS: ftp: loaded support on port[0] = 21 net.ipv6.conf.syz_tun.router_solicitations = 0 RTNETLINK answers: Operation not supported RTNETLINK answers: No buffer space available RTNETLINK answers: Operation not supported [ 34.767860] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument [ 35.175231] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 35.181348] 8021q: adding VLAN 0 to HW filter on device bond0 [ 35.221805] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 35.264376] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 35.306345] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 35.312454] 8021q: adding VLAN 0 to HW filter on device team0 [ 35.342200] bond0: Enslaving bond_slave as an active interface with an up link executing program [ 35.351053] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 35.368728] team0: Port device team_slave added [ 35.374153] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 35.413165] ================================================================== [ 35.420618] BUG: KASAN: use-after-free in skb_release_data+0x19b/0x860 [ 35.427263] Write of size 4 at addr ffff8801c580fda0 by task syzkaller026335/4525 [ 35.434864] [ 35.436475] CPU: 1 PID: 4525 Comm: syzkaller026335 Not tainted 4.16.0+ #17 [ 35.443462] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.452803] Call Trace: [ 35.455383] dump_stack+0x1b9/0x294 [ 35.458990] ? dump_stack_print_info.cold.2+0x52/0x52 [ 35.464164] ? printk+0x9e/0xba [ 35.467421] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 35.472155] ? kasan_check_write+0x14/0x20 [ 35.476370] print_address_description+0x6c/0x20b [ 35.481191] ? skb_release_data+0x19b/0x860 [ 35.485491] kasan_report.cold.7+0xac/0x2f5 [ 35.489821] check_memory_region+0x13e/0x1b0 [ 35.494211] kasan_check_write+0x14/0x20 [ 35.498259] skb_release_data+0x19b/0x860 [ 35.502401] ? skb_tx_error+0x2f0/0x2f0 [ 35.506366] ? kasan_check_read+0x11/0x20 [ 35.510496] ? rcu_is_watching+0x85/0x140 [ 35.514623] ? kasan_check_write+0x14/0x20 [ 35.518837] ? sock_rmem_free+0x6f/0x90 [ 35.522789] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 35.528317] skb_release_all+0x4a/0x60 [ 35.532203] kfree_skb+0x195/0x560 [ 35.535729] ? skb_queue_purge+0x19/0x40 [ 35.539778] ? __kfree_skb+0x20/0x20 [ 35.543501] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 35.548073] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 35.553164] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 35.558168] ? trace_hardirqs_on+0xd/0x10 [ 35.562308] ? skb_dequeue+0x12f/0x180 [ 35.566292] skb_queue_purge+0x19/0x40 [ 35.570176] packet_sock_destruct+0x93/0x290 [ 35.574577] ? packet_mm_close+0xc0/0xc0 [ 35.578621] ? graph_lock+0x170/0x170 [ 35.582400] ? __free_object+0x16e/0x330 [ 35.586438] ? __list_del_entry_valid.cold.1+0x58/0x58 [ 35.591695] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 35.596257] ? packet_mm_close+0xc0/0xc0 [ 35.600316] __sk_destruct+0xff/0xa40 [ 35.604116] ? sock_warn_obsolete_bsdism+0xb0/0xb0 [ 35.609034] ? graph_lock+0x170/0x170 [ 35.612903] ? lock_downgrade+0x8e0/0x8e0 [ 35.617044] ? __lock_is_held+0xb5/0x140 [ 35.621096] ? kasan_check_read+0x11/0x20 [ 35.625233] ? do_raw_spin_unlock+0x9e/0x2e0 [ 35.629634] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 35.634214] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 35.639316] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.644849] ? refcount_sub_and_test+0x212/0x330 [ 35.649596] ? refcount_inc_not_zero+0x2d0/0x2d0 [ 35.654357] ? refcount_inc_not_zero+0x2d0/0x2d0 [ 35.659111] ? pcpu_free_area+0xa90/0xa90 [ 35.663240] sk_destruct+0x78/0x90 [ 35.666769] __sk_free+0x22e/0x340 [ 35.670290] sk_free+0x42/0x50 [ 35.673464] packet_release+0xa18/0xd50 [ 35.677414] ? lock_downgrade+0x8e0/0x8e0 [ 35.681543] ? packet_lookup_frame+0x270/0x270 [ 35.686107] ? cpumask_weight.constprop.5+0x44/0x44 [ 35.691109] ? do_raw_spin_lock+0xc1/0x200 [ 35.695333] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 35.700855] ? locks_remove_file+0x3f7/0x5a0 [ 35.705247] ? fcntl_setlk+0x1020/0x1020 [ 35.709304] ? fsnotify+0x415/0x1100 [ 35.713039] ? fsnotify_first_mark+0x330/0x330 [ 35.717626] sock_release+0x96/0x1b0 [ 35.721347] ? sock_alloc_file+0x4e0/0x4e0 [ 35.725579] sock_close+0x16/0x20 [ 35.729017] __fput+0x34d/0x890 [ 35.732290] ? fput+0x1a0/0x1a0 [ 35.735558] ? check_same_owner+0x320/0x320 [ 35.739874] ____fput+0x15/0x20 [ 35.743135] task_work_run+0x1e4/0x290 [ 35.747016] ? task_work_cancel+0x240/0x240 [ 35.751351] ? switch_task_namespaces+0xbd/0xd0 [ 35.756027] do_exit+0x1aee/0x2730 [ 35.759569] ? do_raw_spin_unlock+0x31/0x2e0 [ 35.763974] ? mm_update_next_owner+0x980/0x980 [ 35.768636] ? kasan_check_write+0x14/0x20 [ 35.772877] ? do_raw_spin_lock+0xc1/0x200 [ 35.777104] ? trace_hardirqs_off+0xd/0x10 [ 35.781340] ? _raw_spin_unlock_irqrestore+0x63/0xc0 [ 35.786449] ? debug_check_no_obj_freed+0x2ff/0x584 [ 35.791468] ? trace_hardirqs_off+0xd/0x10 [ 35.795695] ? quarantine_put+0xeb/0x190 [ 35.799741] ? kfree+0x111/0x260 [ 35.803086] ? ___sys_sendmsg+0x31a/0x940 [ 35.807212] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 35.812211] ? trace_hardirqs_on+0xd/0x10 [ 35.816350] ? ___sys_sendmsg+0x31f/0x940 [ 35.820489] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.826017] ? copy_msghdr_from_user+0x560/0x560 [ 35.830758] ? vm_insert_mixed_mkwrite+0x40/0x40 [ 35.835494] ? graph_lock+0x170/0x170 [ 35.839278] ? graph_lock+0x170/0x170 [ 35.843056] ? find_held_lock+0x36/0x1c0 [ 35.847109] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.852628] ? __fget_light+0x2ef/0x430 [ 35.856600] ? fget_raw+0x20/0x20 [ 35.860059] ? find_held_lock+0x36/0x1c0 [ 35.864118] ? lock_downgrade+0x8e0/0x8e0 [ 35.868255] ? handle_mm_fault+0x8c0/0xc70 [ 35.872472] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 35.877990] ? sockfd_lookup_light+0xc5/0x160 [ 35.882467] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.887985] ? __sys_sendmsg+0x1aa/0x270 [ 35.892035] ? SyS_shutdown+0x30/0x30 [ 35.895825] ? __do_page_fault+0x441/0xe40 [ 35.900047] do_group_exit+0x16f/0x430 [ 35.903916] ? SyS_exit+0x30/0x30 [ 35.907347] ? syscall_slow_exit_work+0x4f0/0x4f0 [ 35.912168] ? do_syscall_64+0xb7/0x9d0 [ 35.916122] ? do_group_exit+0x430/0x430 [ 35.920159] SyS_exit_group+0x1d/0x20 [ 35.923939] do_syscall_64+0x29e/0x9d0 [ 35.927805] ? vmalloc_sync_all+0x30/0x30 [ 35.931940] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 35.936686] ? syscall_return_slowpath+0x5c0/0x5c0 [ 35.941601] ? syscall_return_slowpath+0x30f/0x5c0 [ 35.946526] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 35.951870] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 35.956693] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 35.961858] RIP: 0033:0x441879 [ 35.965031] RSP: 002b:00007fff6b1ac198 EFLAGS: 00000206 ORIG_RAX: 00000000000000e7 [ 35.972717] RAX: ffffffffffffffda RBX: 000000000000001b RCX: 0000000000441879 [ 35.979964] RDX: 0000000000441879 RSI: 0000000000000000 RDI: 0000000000000001 [ 35.987223] RBP: 00000000004a3489 R08: 00000000000024d0 R09: 00000000006cd018 [ 35.994479] R10: 00000000000024d0 R11: 0000000000000206 R12: 00007fff6b1ac298 [ 36.001727] R13: 0000000000402600 R14: 0000000000000000 R15: 0000000000000000 [ 36.009107] [ 36.010798] Allocated by task 4525: [ 36.014502] save_stack+0x43/0xd0 [ 36.017976] kasan_kmalloc+0xc4/0xe0 [ 36.021691] __kmalloc_node_track_caller+0x47/0x70 [ 36.026621] __kmalloc_reserve.isra.38+0x3a/0xe0 [ 36.031369] __alloc_skb+0x14d/0x780 [ 36.035075] alloc_skb_with_frags+0x137/0x760 [ 36.039551] sock_alloc_send_pskb+0x87a/0xae0 [ 36.044113] packet_sendmsg+0x1bd1/0x6100 [ 36.048239] sock_sendmsg+0xd5/0x120 [ 36.051935] ___sys_sendmsg+0x805/0x940 [ 36.055890] __sys_sendmsg+0x115/0x270 [ 36.059751] SyS_sendmsg+0x29/0x30 [ 36.063273] do_syscall_64+0x29e/0x9d0 [ 36.067137] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 36.072297] [ 36.073900] Freed by task 4525: [ 36.077166] save_stack+0x43/0xd0 [ 36.080601] __kasan_slab_free+0x11a/0x170 [ 36.084819] kasan_slab_free+0xe/0x10 [ 36.088601] kfree+0xd9/0x260 [ 36.091690] skb_free_head+0x99/0xc0 [ 36.095387] skb_release_data+0x690/0x860 [ 36.099521] skb_release_all+0x4a/0x60 [ 36.103383] kfree_skb+0x195/0x560 [ 36.106913] ip6_tnl_start_xmit+0xa44/0x2290 [ 36.111305] dev_hard_start_xmit+0x264/0xc10 [ 36.115696] __dev_queue_xmit+0x2724/0x34c0 [ 36.119991] dev_queue_xmit+0x17/0x20 [ 36.123776] packet_sendmsg+0x411d/0x6100 [ 36.127901] sock_sendmsg+0xd5/0x120 [ 36.131590] ___sys_sendmsg+0x805/0x940 [ 36.135544] __sys_sendmsg+0x115/0x270 [ 36.139406] SyS_sendmsg+0x29/0x30 [ 36.142929] do_syscall_64+0x29e/0x9d0 [ 36.146792] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 36.151953] [ 36.153557] The buggy address belongs to the object at ffff8801c580fcc0 [ 36.153557] which belongs to the cache kmalloc-512 of size 512 [ 36.166197] The buggy address is located 224 bytes inside of [ 36.166197] 512-byte region [ffff8801c580fcc0, ffff8801c580fec0) [ 36.178046] The buggy address belongs to the page: [ 36.182966] page:ffffea00071603c0 count:1 mapcount:0 mapping:ffff8801c580f040 index:0x0 [ 36.191099] flags: 0x2fffc0000000100(slab) [ 36.195330] raw: 02fffc0000000100 ffff8801c580f040 0000000000000000 0000000100000006 [ 36.203196] raw: ffffea0007160220 ffffea000716bb60 ffff8801dac00940 0000000000000000 [ 36.211058] page dumped because: kasan: bad access detected [ 36.216751] [ 36.218368] Memory state around the buggy address: [ 36.223288] ffff8801c580fc80: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb [ 36.231590] ffff8801c580fd00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 36.238928] >ffff8801c580fd80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 36.246259] ^ [ 36.250644] ffff8801c580fe00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 36.257978] ffff8801c580fe80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 36.265309] ================================================================== [ 36.272640] Disabling lock debugging due to kernel taint [ 36.278605] Kernel panic - not syncing: panic_on_warn set ... [ 36.278605] [ 36.285981] CPU: 1 PID: 4525 Comm: syzkaller026335 Tainted: G B 4.16.0+ #17 [ 36.294295] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.303633] Call Trace: [ 36.306202] dump_stack+0x1b9/0x294 [ 36.309819] ? dump_stack_print_info.cold.2+0x52/0x52 [ 36.314999] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 36.319776] ? skb_release_data+0xd0/0x860 [ 36.323993] panic+0x22f/0x4de [ 36.327171] ? add_taint.cold.5+0x16/0x16 [ 36.331298] ? do_raw_spin_unlock+0x9e/0x2e0 [ 36.335681] ? do_raw_spin_unlock+0x9e/0x2e0 [ 36.340066] ? skb_release_data+0x19b/0x860 [ 36.344390] kasan_end_report+0x47/0x4f [ 36.348350] kasan_report.cold.7+0xc9/0x2f5 [ 36.352675] check_memory_region+0x13e/0x1b0 [ 36.357083] kasan_check_write+0x14/0x20 [ 36.361121] skb_release_data+0x19b/0x860 [ 36.365254] ? skb_tx_error+0x2f0/0x2f0 [ 36.369209] ? kasan_check_read+0x11/0x20 [ 36.373332] ? rcu_is_watching+0x85/0x140 [ 36.377452] ? kasan_check_write+0x14/0x20 [ 36.381669] ? sock_rmem_free+0x6f/0x90 [ 36.385630] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 36.391150] skb_release_all+0x4a/0x60 [ 36.395033] kfree_skb+0x195/0x560 [ 36.398554] ? skb_queue_purge+0x19/0x40 [ 36.402591] ? __kfree_skb+0x20/0x20 [ 36.406281] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 36.410851] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 36.415944] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 36.420949] ? trace_hardirqs_on+0xd/0x10 [ 36.425074] ? skb_dequeue+0x12f/0x180 [ 36.428940] skb_queue_purge+0x19/0x40 [ 36.432812] packet_sock_destruct+0x93/0x290 [ 36.437196] ? packet_mm_close+0xc0/0xc0 [ 36.441244] ? graph_lock+0x170/0x170 [ 36.445027] ? __free_object+0x16e/0x330 [ 36.449064] ? __list_del_entry_valid.cold.1+0x58/0x58 [ 36.454330] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 36.458887] ? packet_mm_close+0xc0/0xc0 [ 36.462931] __sk_destruct+0xff/0xa40 [ 36.466708] ? sock_warn_obsolete_bsdism+0xb0/0xb0 [ 36.471615] ? graph_lock+0x170/0x170 [ 36.475399] ? lock_downgrade+0x8e0/0x8e0 [ 36.479533] ? __lock_is_held+0xb5/0x140 [ 36.483574] ? kasan_check_read+0x11/0x20 [ 36.487721] ? do_raw_spin_unlock+0x9e/0x2e0 [ 36.492115] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 36.496692] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 36.501777] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.507305] ? refcount_sub_and_test+0x212/0x330 [ 36.512039] ? refcount_inc_not_zero+0x2d0/0x2d0 [ 36.516770] ? refcount_inc_not_zero+0x2d0/0x2d0 [ 36.521502] ? pcpu_free_area+0xa90/0xa90 [ 36.525627] sk_destruct+0x78/0x90 [ 36.529149] __sk_free+0x22e/0x340 [ 36.532670] sk_free+0x42/0x50 [ 36.535842] packet_release+0xa18/0xd50 [ 36.539800] ? lock_downgrade+0x8e0/0x8e0 [ 36.543937] ? packet_lookup_frame+0x270/0x270 [ 36.548497] ? cpumask_weight.constprop.5+0x44/0x44 [ 36.553498] ? do_raw_spin_lock+0xc1/0x200 [ 36.557719] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 36.563234] ? locks_remove_file+0x3f7/0x5a0 [ 36.567618] ? fcntl_setlk+0x1020/0x1020 [ 36.571654] ? fsnotify+0x415/0x1100 [ 36.575344] ? fsnotify_first_mark+0x330/0x330 [ 36.579903] sock_release+0x96/0x1b0 [ 36.583608] ? sock_alloc_file+0x4e0/0x4e0 [ 36.587819] sock_close+0x16/0x20 [ 36.591249] __fput+0x34d/0x890 [ 36.594502] ? fput+0x1a0/0x1a0 [ 36.597760] ? check_same_owner+0x320/0x320 [ 36.602057] ____fput+0x15/0x20 [ 36.605325] task_work_run+0x1e4/0x290 [ 36.609206] ? task_work_cancel+0x240/0x240 [ 36.613507] ? switch_task_namespaces+0xbd/0xd0 [ 36.618154] do_exit+0x1aee/0x2730 [ 36.621673] ? do_raw_spin_unlock+0x31/0x2e0 [ 36.626059] ? mm_update_next_owner+0x980/0x980 [ 36.630707] ? kasan_check_write+0x14/0x20 [ 36.634924] ? do_raw_spin_lock+0xc1/0x200 [ 36.639134] ? trace_hardirqs_off+0xd/0x10 [ 36.643344] ? _raw_spin_unlock_irqrestore+0x63/0xc0 [ 36.648431] ? debug_check_no_obj_freed+0x2ff/0x584 [ 36.653443] ? trace_hardirqs_off+0xd/0x10 [ 36.657675] ? quarantine_put+0xeb/0x190 [ 36.661727] ? kfree+0x111/0x260 [ 36.665076] ? ___sys_sendmsg+0x31a/0x940 [ 36.669210] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 36.674202] ? trace_hardirqs_on+0xd/0x10 [ 36.678329] ? ___sys_sendmsg+0x31f/0x940 [ 36.682455] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.687968] ? copy_msghdr_from_user+0x560/0x560 [ 36.692745] ? vm_insert_mixed_mkwrite+0x40/0x40 [ 36.697475] ? graph_lock+0x170/0x170 [ 36.701250] ? graph_lock+0x170/0x170 [ 36.705032] ? find_held_lock+0x36/0x1c0 [ 36.709075] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.714587] ? __fget_light+0x2ef/0x430 [ 36.718535] ? fget_raw+0x20/0x20 [ 36.721961] ? find_held_lock+0x36/0x1c0 [ 36.725999] ? lock_downgrade+0x8e0/0x8e0 [ 36.730126] ? handle_mm_fault+0x8c0/0xc70 [ 36.734339] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 36.739862] ? sockfd_lookup_light+0xc5/0x160 [ 36.744333] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.749844] ? __sys_sendmsg+0x1aa/0x270 [ 36.753882] ? SyS_shutdown+0x30/0x30 [ 36.757660] ? __do_page_fault+0x441/0xe40 [ 36.761870] do_group_exit+0x16f/0x430 [ 36.765737] ? SyS_exit+0x30/0x30 [ 36.769172] ? syscall_slow_exit_work+0x4f0/0x4f0 [ 36.773990] ? do_syscall_64+0xb7/0x9d0 [ 36.777948] ? do_group_exit+0x430/0x430 [ 36.781988] SyS_exit_group+0x1d/0x20 [ 36.785767] do_syscall_64+0x29e/0x9d0 [ 36.789631] ? vmalloc_sync_all+0x30/0x30 [ 36.793757] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 36.798499] ? syscall_return_slowpath+0x5c0/0x5c0 [ 36.803406] ? syscall_return_slowpath+0x30f/0x5c0 [ 36.808329] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 36.813721] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 36.818547] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 36.823711] RIP: 0033:0x441879 [ 36.826882] RSP: 002b:00007fff6b1ac198 EFLAGS: 00000206 ORIG_RAX: 00000000000000e7 [ 36.834587] RAX: ffffffffffffffda RBX: 000000000000001b RCX: 0000000000441879 [ 36.841862] RDX: 0000000000441879 RSI: 0000000000000000 RDI: 0000000000000001 [ 36.849114] RBP: 00000000004a3489 R08: 00000000000024d0 R09: 00000000006cd018 [ 36.856359] R10: 00000000000024d0 R11: 0000000000000206 R12: 00007fff6b1ac298 [ 36.863609] R13: 0000000000402600 R14: 0000000000000000 R15: 0000000000000000 [ 36.871321] Dumping ftrace buffer: [ 36.874837] (ftrace buffer empty) [ 36.878521] Kernel Offset: disabled [ 36.882122] Rebooting in 86400 seconds..