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 '10.128.0.15' (ECDSA) to the list of known hosts. net.ipv6.conf.syz_tun.accept_dad = 0 net.ipv6.conf.syz_tun.router_solicitations = 0 syzkaller login: [ 30.394267] IPVS: ftp: loaded support on port[0] = 21 RTNETLINK answers: Operation not supported RTNETLINK answers: No buffer space available RTNETLINK answers: Operation not supported [ 30.642611] 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 [ 31.006663] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 31.012768] 8021q: adding VLAN 0 to HW filter on device bond0 [ 31.052007] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 31.092006] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 31.130546] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 31.136640] 8021q: adding VLAN 0 to HW filter on device team0 [ 31.163455] bond0: Enslaving bond_slave as an active interface with an up link [ 31.172176] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready executing program [ 31.189333] team0: Port device team_slave added [ 31.194603] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 31.236117] ================================================================== [ 31.243552] BUG: KASAN: use-after-free in skb_release_data+0x19b/0x860 [ 31.250196] Write of size 4 at addr ffff8801d4710b20 by task syzkaller222277/4651 [ 31.257788] [ 31.259396] CPU: 1 PID: 4651 Comm: syzkaller222277 Not tainted 4.16.0+ #17 [ 31.266744] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.276080] Call Trace: [ 31.278652] dump_stack+0x1b9/0x294 [ 31.282259] ? dump_stack_print_info.cold.2+0x52/0x52 [ 31.287425] ? printk+0x9e/0xba [ 31.290682] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 31.295425] ? kasan_check_write+0x14/0x20 [ 31.299643] print_address_description+0x6c/0x20b [ 31.304464] ? skb_release_data+0x19b/0x860 [ 31.308763] kasan_report.cold.7+0xac/0x2f5 [ 31.313063] check_memory_region+0x13e/0x1b0 [ 31.317450] kasan_check_write+0x14/0x20 [ 31.321488] skb_release_data+0x19b/0x860 [ 31.325617] ? skb_tx_error+0x2f0/0x2f0 [ 31.329575] ? kasan_check_read+0x11/0x20 [ 31.333701] ? rcu_is_watching+0x85/0x140 [ 31.337828] ? kasan_check_write+0x14/0x20 [ 31.342043] ? sock_rmem_free+0x6f/0x90 [ 31.345997] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.351519] skb_release_all+0x4a/0x60 [ 31.355384] kfree_skb+0x195/0x560 [ 31.358900] ? skb_queue_purge+0x19/0x40 [ 31.362941] ? __kfree_skb+0x20/0x20 [ 31.366645] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 31.371218] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 31.376302] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 31.381305] ? trace_hardirqs_on+0xd/0x10 [ 31.385443] ? skb_dequeue+0x12f/0x180 [ 31.389314] skb_queue_purge+0x19/0x40 [ 31.393184] packet_sock_destruct+0x93/0x290 [ 31.397571] ? packet_mm_close+0xc0/0xc0 [ 31.401611] ? graph_lock+0x170/0x170 [ 31.405390] ? __free_object+0x16e/0x330 [ 31.409432] ? __list_del_entry_valid.cold.1+0x58/0x58 [ 31.414691] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 31.419266] ? packet_mm_close+0xc0/0xc0 [ 31.423316] __sk_destruct+0xff/0xa40 [ 31.427107] ? sock_warn_obsolete_bsdism+0xb0/0xb0 [ 31.432023] ? graph_lock+0x170/0x170 [ 31.435810] ? lock_downgrade+0x8e0/0x8e0 [ 31.439938] ? __lock_is_held+0xb5/0x140 [ 31.443984] ? kasan_check_read+0x11/0x20 [ 31.448116] ? do_raw_spin_unlock+0x9e/0x2e0 [ 31.452506] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 31.457080] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 31.462163] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.467679] ? refcount_sub_and_test+0x212/0x330 [ 31.472413] ? refcount_inc_not_zero+0x2d0/0x2d0 [ 31.477152] ? refcount_inc_not_zero+0x2d0/0x2d0 [ 31.481890] ? pcpu_free_area+0xa90/0xa90 [ 31.486029] sk_destruct+0x78/0x90 [ 31.489554] __sk_free+0x22e/0x340 [ 31.493077] sk_free+0x42/0x50 [ 31.496250] packet_release+0xa18/0xd50 [ 31.500204] ? packet_lookup_frame+0x270/0x270 [ 31.504770] ? cpumask_weight.constprop.5+0x44/0x44 [ 31.509771] ? mnt_get_count+0xf4/0x150 [ 31.513734] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.519252] ? fcntl_setlk+0x1020/0x1020 [ 31.523293] ? fsnotify+0x415/0x1100 [ 31.526987] ? fsnotify_first_mark+0x330/0x330 [ 31.531552] sock_release+0x96/0x1b0 [ 31.535247] ? sock_alloc_file+0x4e0/0x4e0 [ 31.539460] sock_close+0x16/0x20 [ 31.542892] __fput+0x34d/0x890 [ 31.546150] ? fput+0x1a0/0x1a0 [ 31.549410] ? check_same_owner+0x320/0x320 [ 31.553710] ____fput+0x15/0x20 [ 31.556967] task_work_run+0x1e4/0x290 [ 31.560833] ? task_work_cancel+0x240/0x240 [ 31.565136] ? switch_task_namespaces+0xbd/0xd0 [ 31.569787] do_exit+0x1aee/0x2730 [ 31.573306] ? plist_add+0x770/0x770 [ 31.576999] ? mm_update_next_owner+0x980/0x980 [ 31.581651] ? print_usage_bug+0xc0/0xc0 [ 31.585689] ? graph_lock+0x170/0x170 [ 31.589477] ? do_raw_spin_unlock+0x9e/0x2e0 [ 31.593863] ? rcu_note_context_switch+0x710/0x710 [ 31.598770] ? lock_acquire+0x1dc/0x520 [ 31.602731] ? __might_sleep+0x95/0x190 [ 31.606690] ? __lock_acquire+0x7f5/0x5130 [ 31.610909] ? debug_check_no_locks_freed+0x310/0x310 [ 31.616078] ? do_raw_spin_unlock+0x9e/0x2e0 [ 31.620466] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 31.625036] ? kasan_check_write+0x14/0x20 [ 31.629252] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 31.634419] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 31.639944] ? drop_futex_key_refs.isra.13+0x6d/0xe0 [ 31.645034] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.650548] ? futex_wait+0x5c1/0x9f0 [ 31.654327] ? futex_wait_setup+0x400/0x400 [ 31.658628] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 31.663798] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 31.669312] ? drop_futex_key_refs.isra.13+0x6d/0xe0 [ 31.674392] ? futex_wake+0x2f6/0x750 [ 31.678171] ? graph_lock+0x170/0x170 [ 31.681953] ? memset+0x31/0x40 [ 31.685211] ? find_held_lock+0x36/0x1c0 [ 31.689255] ? lock_downgrade+0x8e0/0x8e0 [ 31.693387] do_group_exit+0x16f/0x430 [ 31.697254] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 31.701812] ? SyS_exit+0x30/0x30 [ 31.705245] ? _raw_spin_unlock_irq+0x27/0x70 [ 31.709719] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 31.714716] get_signal+0x886/0x1960 [ 31.718412] ? ptrace_notify+0x130/0x130 [ 31.722455] ? copy_msghdr_from_user+0x560/0x560 [ 31.727197] ? __fget_light+0x2ef/0x430 [ 31.731155] do_signal+0x98/0x2040 [ 31.734680] ? setup_sigcontext+0x7d0/0x7d0 [ 31.738984] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 31.744511] ? fput+0x130/0x1a0 [ 31.747790] ? exit_to_usermode_loop+0x87/0x310 [ 31.752443] exit_to_usermode_loop+0x28a/0x310 [ 31.757009] ? syscall_slow_exit_work+0x4f0/0x4f0 [ 31.761839] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 31.766408] ? do_syscall_64+0xb7/0x9d0 [ 31.770364] do_syscall_64+0x792/0x9d0 [ 31.774244] ? _raw_spin_unlock_irq+0x27/0x70 [ 31.778720] ? finish_task_switch+0x1ca/0x820 [ 31.783197] ? syscall_return_slowpath+0x5c0/0x5c0 [ 31.788105] ? syscall_return_slowpath+0x30f/0x5c0 [ 31.793020] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 31.798368] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 31.803189] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 31.808354] RIP: 0033:0x446e09 [ 31.811521] RSP: 002b:00007ff43a05dd48 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 31.819208] RAX: fffffffffffffe00 RBX: 00000000006dcc38 RCX: 0000000000446e09 [ 31.826455] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000006dcc3c [ 31.833702] RBP: 00000000006dcc3c R08: 0000000000000000 R09: 0000000000000000 [ 31.840953] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 31.848201] R13: 00007ffc5f1e789f R14: 00007ff43a05e9c0 R15: 0000000000000004 [ 31.855451] [ 31.857063] Allocated by task 4651: [ 31.860669] save_stack+0x43/0xd0 [ 31.864099] kasan_kmalloc+0xc4/0xe0 [ 31.867787] __kmalloc_node_track_caller+0x47/0x70 [ 31.872695] __kmalloc_reserve.isra.38+0x3a/0xe0 [ 31.877425] __alloc_skb+0x14d/0x780 [ 31.881116] alloc_skb_with_frags+0x137/0x760 [ 31.885586] sock_alloc_send_pskb+0x87a/0xae0 [ 31.890064] packet_sendmsg+0x1bd1/0x6100 [ 31.894190] sock_sendmsg+0xd5/0x120 [ 31.897879] ___sys_sendmsg+0x805/0x940 [ 31.901828] __sys_sendmsg+0x115/0x270 [ 31.905691] SyS_sendmsg+0x29/0x30 [ 31.909214] do_syscall_64+0x29e/0x9d0 [ 31.913086] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 31.918248] [ 31.919852] Freed by task 4651: [ 31.923113] save_stack+0x43/0xd0 [ 31.926543] __kasan_slab_free+0x11a/0x170 [ 31.930765] kasan_slab_free+0xe/0x10 [ 31.934541] kfree+0xd9/0x260 [ 31.937623] skb_free_head+0x99/0xc0 [ 31.941312] skb_release_data+0x690/0x860 [ 31.945440] skb_release_all+0x4a/0x60 [ 31.949305] kfree_skb+0x195/0x560 [ 31.952822] ip6_tnl_start_xmit+0xa44/0x2290 [ 31.957211] dev_hard_start_xmit+0x264/0xc10 [ 31.961596] __dev_queue_xmit+0x2724/0x34c0 [ 31.965894] dev_queue_xmit+0x17/0x20 [ 31.969673] packet_sendmsg+0x411d/0x6100 [ 31.973796] sock_sendmsg+0xd5/0x120 [ 31.977488] ___sys_sendmsg+0x805/0x940 [ 31.981437] __sys_sendmsg+0x115/0x270 [ 31.985302] SyS_sendmsg+0x29/0x30 [ 31.988822] do_syscall_64+0x29e/0x9d0 [ 31.992684] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 31.997845] [ 31.999459] The buggy address belongs to the object at ffff8801d4710a40 [ 31.999459] which belongs to the cache kmalloc-512 of size 512 [ 32.012091] The buggy address is located 224 bytes inside of [ 32.012091] 512-byte region [ffff8801d4710a40, ffff8801d4710c40) [ 32.023939] The buggy address belongs to the page: [ 32.028843] page:ffffea000751c400 count:1 mapcount:0 mapping:ffff8801d4710040 index:0x0 [ 32.036959] flags: 0x2fffc0000000100(slab) [ 32.041172] raw: 02fffc0000000100 ffff8801d4710040 0000000000000000 0000000100000006 [ 32.049035] raw: ffffea000751c3e0 ffffea000751c460 ffff8801dac00940 0000000000000000 [ 32.056887] page dumped because: kasan: bad access detected [ 32.062569] [ 32.064180] Memory state around the buggy address: [ 32.069083] ffff8801d4710a00: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb [ 32.076505] ffff8801d4710a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 32.083839] >ffff8801d4710b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 32.091170] ^ [ 32.095566] ffff8801d4710b80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 32.102899] ffff8801d4710c00: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 32.110231] ================================================================== [ 32.117563] Disabling lock debugging due to kernel taint [ 32.123743] Kernel panic - not syncing: panic_on_warn set ... [ 32.123743] [ 32.131112] CPU: 1 PID: 4651 Comm: syzkaller222277 Tainted: G B 4.16.0+ #17 [ 32.139411] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.148740] Call Trace: [ 32.151310] dump_stack+0x1b9/0x294 [ 32.154915] ? dump_stack_print_info.cold.2+0x52/0x52 [ 32.160083] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 32.164815] ? skb_release_data+0xd0/0x860 [ 32.169032] panic+0x22f/0x4de [ 32.172202] ? add_taint.cold.5+0x16/0x16 [ 32.176329] ? do_raw_spin_unlock+0x9e/0x2e0 [ 32.180719] ? do_raw_spin_unlock+0x9e/0x2e0 [ 32.185102] ? skb_release_data+0x19b/0x860 [ 32.189402] kasan_end_report+0x47/0x4f [ 32.193361] kasan_report.cold.7+0xc9/0x2f5 [ 32.197660] check_memory_region+0x13e/0x1b0 [ 32.202053] kasan_check_write+0x14/0x20 [ 32.206098] skb_release_data+0x19b/0x860 [ 32.210226] ? skb_tx_error+0x2f0/0x2f0 [ 32.214176] ? kasan_check_read+0x11/0x20 [ 32.218298] ? rcu_is_watching+0x85/0x140 [ 32.222422] ? kasan_check_write+0x14/0x20 [ 32.226634] ? sock_rmem_free+0x6f/0x90 [ 32.230595] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 32.236110] skb_release_all+0x4a/0x60 [ 32.239976] kfree_skb+0x195/0x560 [ 32.243488] ? skb_queue_purge+0x19/0x40 [ 32.247523] ? __kfree_skb+0x20/0x20 [ 32.251214] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 32.255779] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 32.260863] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 32.265853] ? trace_hardirqs_on+0xd/0x10 [ 32.269980] ? skb_dequeue+0x12f/0x180 [ 32.273843] skb_queue_purge+0x19/0x40 [ 32.277711] packet_sock_destruct+0x93/0x290 [ 32.282100] ? packet_mm_close+0xc0/0xc0 [ 32.286136] ? graph_lock+0x170/0x170 [ 32.289918] ? __free_object+0x16e/0x330 [ 32.293965] ? __list_del_entry_valid.cold.1+0x58/0x58 [ 32.299223] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 32.303791] ? packet_mm_close+0xc0/0xc0 [ 32.307842] __sk_destruct+0xff/0xa40 [ 32.311620] ? sock_warn_obsolete_bsdism+0xb0/0xb0 [ 32.316526] ? graph_lock+0x170/0x170 [ 32.320308] ? lock_downgrade+0x8e0/0x8e0 [ 32.324432] ? __lock_is_held+0xb5/0x140 [ 32.328469] ? kasan_check_read+0x11/0x20 [ 32.332596] ? do_raw_spin_unlock+0x9e/0x2e0 [ 32.336981] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 32.341539] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 32.346621] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 32.352135] ? refcount_sub_and_test+0x212/0x330 [ 32.356866] ? refcount_inc_not_zero+0x2d0/0x2d0 [ 32.361598] ? refcount_inc_not_zero+0x2d0/0x2d0 [ 32.366331] ? pcpu_free_area+0xa90/0xa90 [ 32.370458] sk_destruct+0x78/0x90 [ 32.373974] __sk_free+0x22e/0x340 [ 32.377488] sk_free+0x42/0x50 [ 32.380659] packet_release+0xa18/0xd50 [ 32.384616] ? packet_lookup_frame+0x270/0x270 [ 32.389181] ? cpumask_weight.constprop.5+0x44/0x44 [ 32.394178] ? mnt_get_count+0xf4/0x150 [ 32.398131] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 32.403644] ? fcntl_setlk+0x1020/0x1020 [ 32.407684] ? fsnotify+0x415/0x1100 [ 32.411379] ? fsnotify_first_mark+0x330/0x330 [ 32.415940] sock_release+0x96/0x1b0 [ 32.419639] ? sock_alloc_file+0x4e0/0x4e0 [ 32.423851] sock_close+0x16/0x20 [ 32.427280] __fput+0x34d/0x890 [ 32.430547] ? fput+0x1a0/0x1a0 [ 32.433811] ? check_same_owner+0x320/0x320 [ 32.438116] ____fput+0x15/0x20 [ 32.441372] task_work_run+0x1e4/0x290 [ 32.445237] ? task_work_cancel+0x240/0x240 [ 32.449534] ? switch_task_namespaces+0xbd/0xd0 [ 32.454181] do_exit+0x1aee/0x2730 [ 32.457702] ? plist_add+0x770/0x770 [ 32.461393] ? mm_update_next_owner+0x980/0x980 [ 32.466042] ? print_usage_bug+0xc0/0xc0 [ 32.470080] ? graph_lock+0x170/0x170 [ 32.473857] ? do_raw_spin_unlock+0x9e/0x2e0 [ 32.478242] ? rcu_note_context_switch+0x710/0x710 [ 32.483147] ? lock_acquire+0x1dc/0x520 [ 32.487096] ? __might_sleep+0x95/0x190 [ 32.491053] ? __lock_acquire+0x7f5/0x5130 [ 32.495266] ? debug_check_no_locks_freed+0x310/0x310 [ 32.500430] ? do_raw_spin_unlock+0x9e/0x2e0 [ 32.504812] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 32.509371] ? kasan_check_write+0x14/0x20 [ 32.513582] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 32.518750] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 32.524264] ? drop_futex_key_refs.isra.13+0x6d/0xe0 [ 32.529343] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 32.534852] ? futex_wait+0x5c1/0x9f0 [ 32.538630] ? futex_wait_setup+0x400/0x400 [ 32.542927] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 32.548092] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 32.553604] ? drop_futex_key_refs.isra.13+0x6d/0xe0 [ 32.558688] ? futex_wake+0x2f6/0x750 [ 32.562466] ? graph_lock+0x170/0x170 [ 32.566246] ? memset+0x31/0x40 [ 32.569500] ? find_held_lock+0x36/0x1c0 [ 32.573546] ? lock_downgrade+0x8e0/0x8e0 [ 32.577676] do_group_exit+0x16f/0x430 [ 32.581541] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 32.586099] ? SyS_exit+0x30/0x30 [ 32.589527] ? _raw_spin_unlock_irq+0x27/0x70 [ 32.593997] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 32.598996] get_signal+0x886/0x1960 [ 32.602690] ? ptrace_notify+0x130/0x130 [ 32.606729] ? copy_msghdr_from_user+0x560/0x560 [ 32.611463] ? __fget_light+0x2ef/0x430 [ 32.615416] do_signal+0x98/0x2040 [ 32.618933] ? setup_sigcontext+0x7d0/0x7d0 [ 32.623236] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 32.628752] ? fput+0x130/0x1a0 [ 32.632020] ? exit_to_usermode_loop+0x87/0x310 [ 32.636675] exit_to_usermode_loop+0x28a/0x310 [ 32.641233] ? syscall_slow_exit_work+0x4f0/0x4f0 [ 32.646050] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 32.650608] ? do_syscall_64+0xb7/0x9d0 [ 32.654558] do_syscall_64+0x792/0x9d0 [ 32.658419] ? _raw_spin_unlock_irq+0x27/0x70 [ 32.662890] ? finish_task_switch+0x1ca/0x820 [ 32.667360] ? syscall_return_slowpath+0x5c0/0x5c0 [ 32.672266] ? syscall_return_slowpath+0x30f/0x5c0 [ 32.677169] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 32.682508] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 32.687325] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 32.692487] RIP: 0033:0x446e09 [ 32.695650] RSP: 002b:00007ff43a05dd48 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 32.703334] RAX: fffffffffffffe00 RBX: 00000000006dcc38 RCX: 0000000000446e09 [ 32.710578] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000006dcc3c [ 32.717822] RBP: 00000000006dcc3c R08: 0000000000000000 R09: 0000000000000000 [ 32.725064] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 32.732309] R13: 00007ffc5f1e789f R14: 00007ff43a05e9c0 R15: 0000000000000004 [ 32.740010] Dumping ftrace buffer: [ 32.743527] (ftrace buffer empty) [ 32.747214] Kernel Offset: disabled [ 32.750827] Rebooting in 86400 seconds..