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 '10.128.10.36' (ECDSA) to the list of known hosts. net.ipv6.conf.syz_tun.accept_dad = 0 syzkaller login: [ 47.669469] IPVS: ftp: loaded support on port[0] = 21 net.ipv6.conf.syz_tun.router_solicitations = 0 [ 47.908448] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.915290] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.922904] device bridge_slave_0 entered promiscuous mode [ 47.941332] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.947786] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.954885] device bridge_slave_1 entered promiscuous mode [ 47.972589] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 47.990191] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 48.037735] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 48.057372] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 48.128787] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 48.136522] team0: Port device team_slave_0 added [ 48.152596] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 48.159793] team0: Port device team_slave_1 added [ 48.176588] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 48.194815] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 48.213057] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 48.231614] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready RTNETLINK answers: Operation not supported RTNETLINK answers: No buffer space available RTNETLINK answers: Operation not supported [ 48.367515] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.374006] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.381009] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.387451] bridge0: port 1(bridge_slave_0) entered forwarding state 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 [ 48.862010] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 48.868235] 8021q: adding VLAN 0 to HW filter on device bond0 [ 48.875796] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 48.923075] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 48.970955] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 48.977214] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 48.984659] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 49.025550] 8021q: adding VLAN 0 to HW filter on device team0 executing program [ 49.320234] ================================================================== [ 49.327758] BUG: KASAN: use-after-free in skb_release_data+0x19b/0x860 [ 49.334425] Write of size 4 at addr ffff8801ce126b60 by task syzkaller864183/4517 [ 49.342050] [ 49.343675] CPU: 1 PID: 4517 Comm: syzkaller864183 Not tainted 4.16.0+ #2 [ 49.350590] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.359947] Call Trace: [ 49.362550] dump_stack+0x1b9/0x294 [ 49.366195] ? dump_stack_print_info.cold.2+0x52/0x52 [ 49.371392] ? printk+0x9e/0xba [ 49.374664] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 49.379428] ? kasan_check_write+0x14/0x20 [ 49.383679] print_address_description+0x6c/0x20b [ 49.388520] ? skb_release_data+0x19b/0x860 [ 49.392843] kasan_report.cold.7+0x242/0x2fe [ 49.397263] check_memory_region+0x13e/0x1b0 [ 49.401671] kasan_check_write+0x14/0x20 [ 49.405728] skb_release_data+0x19b/0x860 [ 49.409881] ? skb_tx_error+0x2f0/0x2f0 [ 49.413850] ? kasan_check_read+0x11/0x20 [ 49.417997] ? rcu_is_watching+0x85/0x140 [ 49.422135] ? kasan_check_write+0x14/0x20 [ 49.426359] ? sock_rmem_free+0x6f/0x90 [ 49.430328] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 49.435868] skb_release_all+0x4a/0x60 [ 49.439755] kfree_skb+0x195/0x560 [ 49.443287] ? skb_queue_purge+0x19/0x40 [ 49.447352] ? __kfree_skb+0x20/0x20 [ 49.451073] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 49.455656] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 49.460761] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 49.465777] ? trace_hardirqs_on+0xd/0x10 [ 49.469927] ? skb_dequeue+0x12f/0x180 [ 49.473813] skb_queue_purge+0x19/0x40 [ 49.477699] packet_sock_destruct+0x93/0x290 [ 49.482109] ? packet_mm_close+0xc0/0xc0 [ 49.486204] ? graph_lock+0x170/0x170 [ 49.490001] ? __free_object+0x16e/0x330 [ 49.494058] ? __list_del_entry_valid.cold.1+0x58/0x58 [ 49.499342] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 49.503929] ? packet_mm_close+0xc0/0xc0 [ 49.507989] __sk_destruct+0xff/0xa40 [ 49.511789] ? sock_warn_obsolete_bsdism+0xb0/0xb0 [ 49.516723] ? graph_lock+0x170/0x170 [ 49.520527] ? lock_downgrade+0x8e0/0x8e0 [ 49.524680] ? __lock_is_held+0xb5/0x140 [ 49.528753] ? kasan_check_read+0x11/0x20 [ 49.532898] ? do_raw_spin_unlock+0x9e/0x2e0 [ 49.537302] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 49.541886] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 49.546990] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.552542] ? refcount_sub_and_test+0x212/0x330 [ 49.557307] ? refcount_inc_not_zero+0x2d0/0x2d0 [ 49.562080] ? refcount_inc_not_zero+0x2d0/0x2d0 [ 49.566834] ? pcpu_free_area+0xa90/0xa90 [ 49.570981] sk_destruct+0x78/0x90 [ 49.574528] __sk_free+0x22e/0x340 [ 49.578074] sk_free+0x42/0x50 [ 49.581266] packet_release+0xa18/0xd50 [ 49.585238] ? lock_downgrade+0x8e0/0x8e0 [ 49.589400] ? packet_lookup_frame+0x270/0x270 [ 49.593997] ? cpumask_weight.constprop.5+0x44/0x44 [ 49.599016] ? do_raw_spin_lock+0xc1/0x200 [ 49.603253] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 49.608797] ? locks_remove_file+0x3f7/0x5a0 [ 49.613204] ? fcntl_setlk+0x1020/0x1020 [ 49.617259] ? fsnotify+0x415/0x1100 [ 49.620972] ? fsnotify_first_mark+0x330/0x330 [ 49.625551] sock_release+0x96/0x1b0 [ 49.629262] ? sock_alloc_file+0x4e0/0x4e0 [ 49.633488] sock_close+0x16/0x20 [ 49.636931] __fput+0x34d/0x890 [ 49.640211] ? fput+0x1a0/0x1a0 [ 49.643485] ? check_same_owner+0x320/0x320 [ 49.647799] ____fput+0x15/0x20 [ 49.651068] task_work_run+0x1e4/0x290 [ 49.654952] ? task_work_cancel+0x240/0x240 [ 49.659269] ? switch_task_namespaces+0xbd/0xd0 [ 49.663935] do_exit+0x1aee/0x2730 [ 49.667480] ? mm_update_next_owner+0x980/0x980 [ 49.672153] ? finish_mkwrite_fault+0x610/0x610 [ 49.676821] ? debug_check_no_locks_freed+0x310/0x310 [ 49.682011] ? kasan_check_read+0x11/0x20 [ 49.686165] ? rcu_is_watching+0x85/0x140 [ 49.690314] ? lock_acquire+0x1dc/0x520 [ 49.694296] ? lock_release+0xa10/0xa10 [ 49.698268] ? tun_chr_close+0x180/0x180 [ 49.702336] ? kasan_check_write+0x14/0x20 [ 49.706576] ? do_raw_spin_lock+0xc1/0x200 [ 49.710817] ? __handle_mm_fault+0x88c/0x4150 [ 49.715325] ? vm_insert_mixed_mkwrite+0x40/0x40 [ 49.720088] ? graph_lock+0x170/0x170 [ 49.723909] ? rcu_is_watching+0x85/0x140 [ 49.728056] ? graph_lock+0x170/0x170 [ 49.731849] ? find_held_lock+0x36/0x1c0 [ 49.735909] ? find_held_lock+0x36/0x1c0 [ 49.739970] ? lock_downgrade+0x8e0/0x8e0 [ 49.744132] ? handle_mm_fault+0x8c0/0xc70 [ 49.748384] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 49.753924] ? handle_mm_fault+0x55a/0xc70 [ 49.758147] ? __handle_mm_fault+0x4150/0x4150 [ 49.762726] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.768247] ? __do_page_fault+0x441/0xe40 [ 49.772467] do_group_exit+0x16f/0x430 [ 49.776338] ? SyS_exit+0x30/0x30 [ 49.779772] ? syscall_slow_exit_work+0x4f0/0x4f0 [ 49.784606] ? do_syscall_64+0xb7/0x9d0 [ 49.788563] ? do_group_exit+0x430/0x430 [ 49.792606] SyS_exit_group+0x1d/0x20 [ 49.796390] do_syscall_64+0x29e/0x9d0 [ 49.800263] ? vmalloc_sync_all+0x30/0x30 [ 49.804393] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 49.809130] ? syscall_return_slowpath+0x5c0/0x5c0 [ 49.814044] ? syscall_return_slowpath+0x30f/0x5c0 [ 49.818957] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.824474] ? retint_user+0x18/0x18 [ 49.828170] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.832997] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 49.838178] RIP: 0033:0x441849 [ 49.841347] RSP: 002b:00007ffe2c50ccc8 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7 [ 49.849039] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441849 [ 49.856295] RDX: 0000000000441780 RSI: 0000000000000001 RDI: 0000000000000001 [ 49.863542] RBP: 00000000006cd018 R08: 0000000000000000 R09: 0000000000000003 [ 49.870803] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000402540 [ 49.878055] R13: 00000000004025d0 R14: 0000000000000000 R15: 0000000000000000 [ 49.885314] [ 49.886921] Allocated by task 4517: [ 49.890541] save_stack+0x43/0xd0 [ 49.893981] kasan_kmalloc+0xc4/0xe0 [ 49.897677] __kmalloc_node_track_caller+0x47/0x70 [ 49.902602] __kmalloc_reserve.isra.38+0x3a/0xe0 [ 49.907351] __alloc_skb+0x14d/0x780 [ 49.911048] alloc_skb_with_frags+0x137/0x760 [ 49.915524] sock_alloc_send_pskb+0x87a/0xae0 [ 49.920014] packet_sendmsg+0x1bd1/0x60b0 [ 49.924153] sock_sendmsg+0xd5/0x120 [ 49.927860] ___sys_sendmsg+0x805/0x940 [ 49.931812] __sys_sendmsg+0x115/0x270 [ 49.935704] SyS_sendmsg+0x29/0x30 [ 49.939240] do_syscall_64+0x29e/0x9d0 [ 49.943112] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 49.948274] [ 49.949881] Freed by task 4517: [ 49.953140] save_stack+0x43/0xd0 [ 49.956573] __kasan_slab_free+0x11a/0x170 [ 49.960793] kasan_slab_free+0xe/0x10 [ 49.964569] kfree+0xd9/0x260 [ 49.967654] skb_free_head+0x99/0xc0 [ 49.971347] skb_release_data+0x690/0x860 [ 49.975473] skb_release_all+0x4a/0x60 [ 49.979340] kfree_skb+0x195/0x560 [ 49.982864] ip6_tnl_start_xmit+0xa44/0x2290 [ 49.987258] dev_hard_start_xmit+0x264/0xc10 [ 49.991645] __dev_queue_xmit+0x2724/0x34c0 [ 49.995943] dev_queue_xmit+0x17/0x20 [ 49.999721] packet_sendmsg+0x411c/0x60b0 [ 50.003847] sock_sendmsg+0xd5/0x120 [ 50.007555] ___sys_sendmsg+0x805/0x940 [ 50.011524] __sys_sendmsg+0x115/0x270 [ 50.015392] SyS_sendmsg+0x29/0x30 [ 50.018914] do_syscall_64+0x29e/0x9d0 [ 50.022784] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 50.027946] [ 50.029556] The buggy address belongs to the object at ffff8801ce126a80 [ 50.029556] which belongs to the cache kmalloc-512 of size 512 [ 50.042200] The buggy address is located 224 bytes inside of [ 50.042200] 512-byte region [ffff8801ce126a80, ffff8801ce126c80) [ 50.054054] The buggy address belongs to the page: [ 50.058967] page:ffffea0007384980 count:1 mapcount:0 mapping:ffff8801ce126080 index:0x0 [ 50.067100] flags: 0x2fffc0000000100(slab) [ 50.071317] raw: 02fffc0000000100 ffff8801ce126080 0000000000000000 0000000100000006 [ 50.079191] raw: ffffea00073874a0 ffffea0007389ee0 ffff8801dac00940 0000000000000000 [ 50.087046] page dumped because: kasan: bad access detected [ 50.092729] [ 50.094332] Memory state around the buggy address: [ 50.099238] ffff8801ce126a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 50.106574] ffff8801ce126a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 50.113916] >ffff8801ce126b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 50.121257] ^ [ 50.127736] ffff8801ce126b80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 50.135081] ffff8801ce126c00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 50.142416] ================================================================== [ 50.149760] Disabling lock debugging due to kernel taint [ 50.155748] Kernel panic - not syncing: panic_on_warn set ... [ 50.155748] [ 50.163123] CPU: 1 PID: 4517 Comm: syzkaller864183 Tainted: G B 4.16.0+ #2 [ 50.171427] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.180759] Call Trace: [ 50.183337] dump_stack+0x1b9/0x294 [ 50.186949] ? dump_stack_print_info.cold.2+0x52/0x52 [ 50.192125] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 50.196860] ? skb_release_data+0xd0/0x860 [ 50.201076] panic+0x22f/0x4de [ 50.204247] ? add_taint.cold.5+0x16/0x16 [ 50.208375] ? do_raw_spin_unlock+0x9e/0x2e0 [ 50.212760] ? do_raw_spin_unlock+0x9e/0x2e0 [ 50.217154] ? skb_release_data+0x19b/0x860 [ 50.221453] kasan_end_report+0x47/0x4f [ 50.225403] kasan_report.cold.7+0x76/0x2fe [ 50.229702] check_memory_region+0x13e/0x1b0 [ 50.234089] kasan_check_write+0x14/0x20 [ 50.238134] skb_release_data+0x19b/0x860 [ 50.242262] ? skb_tx_error+0x2f0/0x2f0 [ 50.246213] ? kasan_check_read+0x11/0x20 [ 50.250338] ? rcu_is_watching+0x85/0x140 [ 50.254463] ? kasan_check_write+0x14/0x20 [ 50.258678] ? sock_rmem_free+0x6f/0x90 [ 50.262631] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 50.268143] skb_release_all+0x4a/0x60 [ 50.272010] kfree_skb+0x195/0x560 [ 50.275533] ? skb_queue_purge+0x19/0x40 [ 50.279570] ? __kfree_skb+0x20/0x20 [ 50.283265] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 50.287823] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 50.292904] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 50.297897] ? trace_hardirqs_on+0xd/0x10 [ 50.302030] ? skb_dequeue+0x12f/0x180 [ 50.305900] skb_queue_purge+0x19/0x40 [ 50.309766] packet_sock_destruct+0x93/0x290 [ 50.314157] ? packet_mm_close+0xc0/0xc0 [ 50.318192] ? graph_lock+0x170/0x170 [ 50.321973] ? __free_object+0x16e/0x330 [ 50.326025] ? __list_del_entry_valid.cold.1+0x58/0x58 [ 50.331282] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 50.335842] ? packet_mm_close+0xc0/0xc0 [ 50.339893] __sk_destruct+0xff/0xa40 [ 50.343673] ? sock_warn_obsolete_bsdism+0xb0/0xb0 [ 50.348579] ? graph_lock+0x170/0x170 [ 50.352362] ? lock_downgrade+0x8e0/0x8e0 [ 50.356493] ? __lock_is_held+0xb5/0x140 [ 50.360532] ? kasan_check_read+0x11/0x20 [ 50.364656] ? do_raw_spin_unlock+0x9e/0x2e0 [ 50.369134] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 50.373695] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 50.378778] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.384303] ? refcount_sub_and_test+0x212/0x330 [ 50.389040] ? refcount_inc_not_zero+0x2d0/0x2d0 [ 50.393776] ? refcount_inc_not_zero+0x2d0/0x2d0 [ 50.398519] ? pcpu_free_area+0xa90/0xa90 [ 50.402653] sk_destruct+0x78/0x90 [ 50.406171] __sk_free+0x22e/0x340 [ 50.409688] sk_free+0x42/0x50 [ 50.412859] packet_release+0xa18/0xd50 [ 50.416811] ? lock_downgrade+0x8e0/0x8e0 [ 50.420946] ? packet_lookup_frame+0x270/0x270 [ 50.425509] ? cpumask_weight.constprop.5+0x44/0x44 [ 50.430503] ? do_raw_spin_lock+0xc1/0x200 [ 50.434715] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 50.440673] ? locks_remove_file+0x3f7/0x5a0 [ 50.445067] ? fcntl_setlk+0x1020/0x1020 [ 50.449108] ? fsnotify+0x415/0x1100 [ 50.452803] ? fsnotify_first_mark+0x330/0x330 [ 50.457363] sock_release+0x96/0x1b0 [ 50.461060] ? sock_alloc_file+0x4e0/0x4e0 [ 50.465274] sock_close+0x16/0x20 [ 50.468704] __fput+0x34d/0x890 [ 50.471960] ? fput+0x1a0/0x1a0 [ 50.475222] ? check_same_owner+0x320/0x320 [ 50.479519] ____fput+0x15/0x20 [ 50.482774] task_work_run+0x1e4/0x290 [ 50.486639] ? task_work_cancel+0x240/0x240 [ 50.490940] ? switch_task_namespaces+0xbd/0xd0 [ 50.495596] do_exit+0x1aee/0x2730 [ 50.499124] ? mm_update_next_owner+0x980/0x980 [ 50.503769] ? finish_mkwrite_fault+0x610/0x610 [ 50.508415] ? debug_check_no_locks_freed+0x310/0x310 [ 50.513589] ? kasan_check_read+0x11/0x20 [ 50.517714] ? rcu_is_watching+0x85/0x140 [ 50.521839] ? lock_acquire+0x1dc/0x520 [ 50.525791] ? lock_release+0xa10/0xa10 [ 50.529745] ? tun_chr_close+0x180/0x180 [ 50.533784] ? kasan_check_write+0x14/0x20 [ 50.537999] ? do_raw_spin_lock+0xc1/0x200 [ 50.542227] ? __handle_mm_fault+0x88c/0x4150 [ 50.546700] ? vm_insert_mixed_mkwrite+0x40/0x40 [ 50.551432] ? graph_lock+0x170/0x170 [ 50.555211] ? rcu_is_watching+0x85/0x140 [ 50.559335] ? graph_lock+0x170/0x170 [ 50.563110] ? find_held_lock+0x36/0x1c0 [ 50.567150] ? find_held_lock+0x36/0x1c0 [ 50.571189] ? lock_downgrade+0x8e0/0x8e0 [ 50.575316] ? handle_mm_fault+0x8c0/0xc70 [ 50.579617] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 50.585131] ? handle_mm_fault+0x55a/0xc70 [ 50.589345] ? __handle_mm_fault+0x4150/0x4150 [ 50.593907] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.599423] ? __do_page_fault+0x441/0xe40 [ 50.603651] do_group_exit+0x16f/0x430 [ 50.607518] ? SyS_exit+0x30/0x30 [ 50.610957] ? syscall_slow_exit_work+0x4f0/0x4f0 [ 50.615786] ? do_syscall_64+0xb7/0x9d0 [ 50.619744] ? do_group_exit+0x430/0x430 [ 50.623781] SyS_exit_group+0x1d/0x20 [ 50.627561] do_syscall_64+0x29e/0x9d0 [ 50.631425] ? vmalloc_sync_all+0x30/0x30 [ 50.635551] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 50.640287] ? syscall_return_slowpath+0x5c0/0x5c0 [ 50.645196] ? syscall_return_slowpath+0x30f/0x5c0 [ 50.650115] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.655632] ? retint_user+0x18/0x18 [ 50.659324] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.664148] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 50.669315] RIP: 0033:0x441849 [ 50.672481] RSP: 002b:00007ffe2c50ccc8 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7 [ 50.680168] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441849 [ 50.687416] RDX: 0000000000441780 RSI: 0000000000000001 RDI: 0000000000000001 [ 50.694664] RBP: 00000000006cd018 R08: 0000000000000000 R09: 0000000000000003 [ 50.701912] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000402540 [ 50.709158] R13: 00000000004025d0 R14: 0000000000000000 R15: 0000000000000000 [ 50.716898] Dumping ftrace buffer: [ 50.720423] (ftrace buffer empty) [ 50.724108] Kernel Offset: disabled [ 50.727713] Rebooting in 86400 seconds..