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 '10.128.0.45' (ECDSA) to the list of known hosts. net.ipv6.conf.syz_tun.accept_dad = 0 syzkaller login: [ 30.984117] IPVS: ftp: loaded support on port[0] = 21 net.ipv6.conf.syz_tun.router_solicitations = 0 [ 31.172950] bridge0: port 1(bridge_slave_0) entered blocking state [ 31.179400] bridge0: port 1(bridge_slave_0) entered disabled state [ 31.186931] device bridge_slave_0 entered promiscuous mode [ 31.203216] bridge0: port 2(bridge_slave_1) entered blocking state [ 31.209579] bridge0: port 2(bridge_slave_1) entered disabled state [ 31.216688] device bridge_slave_1 entered promiscuous mode [ 31.231603] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 31.247729] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 31.287823] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 31.304827] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 31.362895] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 31.370256] team0: Port device team_slave_0 added [ 31.385060] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 31.392228] team0: Port device team_slave_1 added [ 31.407381] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 31.424366] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 31.440419] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 31.458153] 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 [ 31.568066] bridge0: port 2(bridge_slave_1) entered blocking state [ 31.574529] bridge0: port 2(bridge_slave_1) entered forwarding state [ 31.581463] bridge0: port 1(bridge_slave_0) entered blocking state [ 31.587828] 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 [ 31.978351] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 31.984459] 8021q: adding VLAN 0 to HW filter on device bond0 [ 32.025398] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 32.066922] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 32.074549] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 32.116853] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 32.122980] 8021q: adding VLAN 0 to HW filter on device team0 [ 32.129375] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready executing program [ 32.381123] ================================================================== [ 32.388572] BUG: KASAN: use-after-free in skb_release_data+0x19b/0x860 [ 32.395215] Write of size 4 at addr ffff8801d34976a0 by task syzkaller200888/4502 [ 32.402807] [ 32.404414] CPU: 1 PID: 4502 Comm: syzkaller200888 Not tainted 4.16.0+ #2 [ 32.411312] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.420642] Call Trace: [ 32.423215] dump_stack+0x1b9/0x294 [ 32.426824] ? dump_stack_print_info.cold.2+0x52/0x52 [ 32.431989] ? printk+0x9e/0xba [ 32.435246] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 32.439982] ? kasan_check_write+0x14/0x20 [ 32.444199] print_address_description+0x6c/0x20b [ 32.449025] ? skb_release_data+0x19b/0x860 [ 32.453362] kasan_report.cold.7+0xac/0x2f5 [ 32.457665] check_memory_region+0x13e/0x1b0 [ 32.462060] kasan_check_write+0x14/0x20 [ 32.466098] skb_release_data+0x19b/0x860 [ 32.470230] ? skb_tx_error+0x2f0/0x2f0 [ 32.474183] ? kasan_check_read+0x11/0x20 [ 32.478308] ? rcu_is_watching+0x85/0x140 [ 32.482455] ? kasan_check_write+0x14/0x20 [ 32.486669] ? sock_rmem_free+0x6f/0x90 [ 32.490621] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 32.496135] skb_release_all+0x4a/0x60 [ 32.499998] kfree_skb+0x195/0x560 [ 32.503518] ? skb_queue_purge+0x19/0x40 [ 32.507554] ? __kfree_skb+0x20/0x20 [ 32.511255] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 32.515816] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 32.520894] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 32.525888] ? trace_hardirqs_on+0xd/0x10 [ 32.530022] ? skb_dequeue+0x12f/0x180 [ 32.533889] skb_queue_purge+0x19/0x40 [ 32.537752] packet_sock_destruct+0x93/0x290 [ 32.542147] ? packet_mm_close+0xc0/0xc0 [ 32.546184] ? graph_lock+0x170/0x170 [ 32.549961] ? __free_object+0x16e/0x330 [ 32.553997] ? __list_del_entry_valid.cold.1+0x58/0x58 [ 32.559255] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 32.563813] ? packet_mm_close+0xc0/0xc0 [ 32.567852] __sk_destruct+0xff/0xa40 [ 32.571630] ? sock_warn_obsolete_bsdism+0xb0/0xb0 [ 32.576535] ? graph_lock+0x170/0x170 [ 32.580313] ? lock_downgrade+0x8e0/0x8e0 [ 32.584440] ? __lock_is_held+0xb5/0x140 [ 32.588479] ? kasan_check_read+0x11/0x20 [ 32.592603] ? do_raw_spin_unlock+0x9e/0x2e0 [ 32.596988] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 32.601551] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 32.606634] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 32.612148] ? refcount_sub_and_test+0x212/0x330 [ 32.616884] ? refcount_inc_not_zero+0x2d0/0x2d0 [ 32.621618] ? refcount_inc_not_zero+0x2d0/0x2d0 [ 32.626349] ? pcpu_free_area+0xa90/0xa90 [ 32.630479] sk_destruct+0x78/0x90 [ 32.633995] __sk_free+0x22e/0x340 [ 32.637604] sk_free+0x42/0x50 [ 32.640775] packet_release+0xa18/0xd50 [ 32.644724] ? lock_downgrade+0x8e0/0x8e0 [ 32.648849] ? packet_lookup_frame+0x270/0x270 [ 32.653407] ? cpumask_weight.constprop.5+0x44/0x44 [ 32.659018] ? do_raw_spin_lock+0xc1/0x200 [ 32.663242] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 32.668755] ? locks_remove_file+0x3f7/0x5a0 [ 32.673143] ? fcntl_setlk+0x1020/0x1020 [ 32.677191] ? fsnotify+0x415/0x1100 [ 32.680891] ? fsnotify_first_mark+0x330/0x330 [ 32.685453] sock_release+0x96/0x1b0 [ 32.689143] ? sock_alloc_file+0x4e0/0x4e0 [ 32.693353] sock_close+0x16/0x20 [ 32.696781] __fput+0x34d/0x890 [ 32.700040] ? fput+0x1a0/0x1a0 [ 32.703298] ? check_same_owner+0x320/0x320 [ 32.707595] ____fput+0x15/0x20 [ 32.710852] task_work_run+0x1e4/0x290 [ 32.714718] ? task_work_cancel+0x240/0x240 [ 32.719030] ? switch_task_namespaces+0xbd/0xd0 [ 32.723689] do_exit+0x1aee/0x2730 [ 32.727245] ? do_raw_spin_unlock+0x61/0x2e0 [ 32.731628] ? mm_update_next_owner+0x980/0x980 [ 32.736276] ? kasan_check_write+0x14/0x20 [ 32.740486] ? do_raw_spin_lock+0xc1/0x200 [ 32.744700] ? trace_hardirqs_off+0xd/0x10 [ 32.748911] ? _raw_spin_unlock_irqrestore+0x63/0xc0 [ 32.753995] ? debug_check_no_obj_freed+0x2ff/0x584 [ 32.758998] ? trace_hardirqs_off+0xd/0x10 [ 32.763217] ? quarantine_put+0xeb/0x190 [ 32.767257] ? kfree+0x111/0x260 [ 32.770599] ? ___sys_sendmsg+0x31a/0x940 [ 32.774724] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 32.779717] ? trace_hardirqs_on+0xd/0x10 [ 32.783840] ? ___sys_sendmsg+0x31f/0x940 [ 32.787965] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 32.793478] ? copy_msghdr_from_user+0x560/0x560 [ 32.798214] ? vm_insert_mixed_mkwrite+0x40/0x40 [ 32.802947] ? graph_lock+0x170/0x170 [ 32.806731] ? graph_lock+0x170/0x170 [ 32.810512] ? find_held_lock+0x36/0x1c0 [ 32.814560] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 32.820076] ? __fget_light+0x2ef/0x430 [ 32.824035] ? fget_raw+0x20/0x20 [ 32.827467] ? find_held_lock+0x36/0x1c0 [ 32.831509] ? lock_downgrade+0x8e0/0x8e0 [ 32.835635] ? handle_mm_fault+0x8c0/0xc70 [ 32.839850] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 32.845367] ? sockfd_lookup_light+0xc5/0x160 [ 32.849841] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 32.855353] ? __sys_sendmsg+0x1aa/0x270 [ 32.859393] ? SyS_shutdown+0x30/0x30 [ 32.863175] ? __do_page_fault+0x441/0xe40 [ 32.867391] do_group_exit+0x16f/0x430 [ 32.871256] ? SyS_exit+0x30/0x30 [ 32.874688] ? syscall_slow_exit_work+0x4f0/0x4f0 [ 32.879507] ? do_syscall_64+0xb7/0x9d0 [ 32.883456] ? do_group_exit+0x430/0x430 [ 32.887496] SyS_exit_group+0x1d/0x20 [ 32.891279] do_syscall_64+0x29e/0x9d0 [ 32.895145] ? vmalloc_sync_all+0x30/0x30 [ 32.899282] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 32.904022] ? syscall_return_slowpath+0x5c0/0x5c0 [ 32.908934] ? syscall_return_slowpath+0x30f/0x5c0 [ 32.913845] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 32.919194] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 32.924023] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 32.929191] RIP: 0033:0x4418f9 [ 32.932354] RSP: 002b:00007ffcc5989788 EFLAGS: 00000206 ORIG_RAX: 00000000000000e7 [ 32.940039] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004418f9 [ 32.947376] RDX: 00000000004418f9 RSI: 0000000000000000 RDI: 0000000000000001 [ 32.954623] RBP: 00000000006cd018 R08: 0000000000000000 R09: 0000000000000003 [ 32.961870] R10: 0000000000000000 R11: 0000000000000206 R12: 00000000004025f0 [ 32.969116] R13: 0000000000402680 R14: 0000000000000000 R15: 0000000000000000 [ 32.976373] [ 32.977980] Allocated by task 4502: [ 32.981582] save_stack+0x43/0xd0 [ 32.985013] kasan_kmalloc+0xc4/0xe0 [ 32.988709] __kmalloc_node_track_caller+0x47/0x70 [ 32.993613] __kmalloc_reserve.isra.38+0x3a/0xe0 [ 32.998344] __alloc_skb+0x14d/0x780 [ 33.002035] alloc_skb_with_frags+0x137/0x760 [ 33.006505] sock_alloc_send_pskb+0x87a/0xae0 [ 33.010976] packet_sendmsg+0x1bd1/0x6100 [ 33.015099] sock_sendmsg+0xd5/0x120 [ 33.018785] ___sys_sendmsg+0x805/0x940 [ 33.022731] __sys_sendmsg+0x115/0x270 [ 33.026592] SyS_sendmsg+0x29/0x30 [ 33.030109] do_syscall_64+0x29e/0x9d0 [ 33.033972] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 33.039130] [ 33.040732] Freed by task 4502: [ 33.043985] save_stack+0x43/0xd0 [ 33.047415] __kasan_slab_free+0x11a/0x170 [ 33.051624] kasan_slab_free+0xe/0x10 [ 33.055398] kfree+0xd9/0x260 [ 33.058482] skb_free_head+0x99/0xc0 [ 33.062171] skb_release_data+0x690/0x860 [ 33.066294] skb_release_all+0x4a/0x60 [ 33.070155] kfree_skb+0x195/0x560 [ 33.073671] ip6_tnl_start_xmit+0xa44/0x2290 [ 33.078054] dev_hard_start_xmit+0x264/0xc10 [ 33.082435] __dev_queue_xmit+0x2724/0x34c0 [ 33.086733] dev_queue_xmit+0x17/0x20 [ 33.090510] packet_sendmsg+0x411d/0x6100 [ 33.094632] sock_sendmsg+0xd5/0x120 [ 33.098320] ___sys_sendmsg+0x805/0x940 [ 33.102270] __sys_sendmsg+0x115/0x270 [ 33.106131] SyS_sendmsg+0x29/0x30 [ 33.109652] do_syscall_64+0x29e/0x9d0 [ 33.113516] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 33.118677] [ 33.120278] The buggy address belongs to the object at ffff8801d34975c0 [ 33.120278] which belongs to the cache kmalloc-512 of size 512 [ 33.132912] The buggy address is located 224 bytes inside of [ 33.132912] 512-byte region [ffff8801d34975c0, ffff8801d34977c0) [ 33.144763] The buggy address belongs to the page: [ 33.149670] page:ffffea00074d25c0 count:1 mapcount:0 mapping:ffff8801d34970c0 index:0x0 [ 33.157791] flags: 0x2fffc0000000100(slab) [ 33.162021] raw: 02fffc0000000100 ffff8801d34970c0 0000000000000000 0000000100000006 [ 33.169888] raw: ffffea00074d25a0 ffffea00074d2620 ffff8801dac00940 0000000000000000 [ 33.177739] page dumped because: kasan: bad access detected [ 33.183418] [ 33.185021] Memory state around the buggy address: [ 33.189929] ffff8801d3497580: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb [ 33.197263] ffff8801d3497600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 33.204597] >ffff8801d3497680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 33.211925] ^ [ 33.216309] ffff8801d3497700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 33.223647] ffff8801d3497780: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 33.230978] ================================================================== [ 33.238306] Disabling lock debugging due to kernel taint [ 33.244445] Kernel panic - not syncing: panic_on_warn set ... [ 33.244445] [ 33.251816] CPU: 1 PID: 4502 Comm: syzkaller200888 Tainted: G B 4.16.0+ #2 [ 33.260116] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.269444] Call Trace: [ 33.272018] dump_stack+0x1b9/0x294 [ 33.275626] ? dump_stack_print_info.cold.2+0x52/0x52 [ 33.280819] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 33.285551] ? skb_release_data+0xd0/0x860 [ 33.289762] panic+0x22f/0x4de [ 33.292929] ? add_taint.cold.5+0x16/0x16 [ 33.297054] ? do_raw_spin_unlock+0x9e/0x2e0 [ 33.301434] ? do_raw_spin_unlock+0x9e/0x2e0 [ 33.305817] ? skb_release_data+0x19b/0x860 [ 33.310123] kasan_end_report+0x47/0x4f [ 33.314076] kasan_report.cold.7+0xc9/0x2f5 [ 33.318373] check_memory_region+0x13e/0x1b0 [ 33.322754] kasan_check_write+0x14/0x20 [ 33.326791] skb_release_data+0x19b/0x860 [ 33.330919] ? skb_tx_error+0x2f0/0x2f0 [ 33.334867] ? kasan_check_read+0x11/0x20 [ 33.338991] ? rcu_is_watching+0x85/0x140 [ 33.343115] ? kasan_check_write+0x14/0x20 [ 33.347324] ? sock_rmem_free+0x6f/0x90 [ 33.351273] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 33.356790] skb_release_all+0x4a/0x60 [ 33.360649] kfree_skb+0x195/0x560 [ 33.364162] ? skb_queue_purge+0x19/0x40 [ 33.368196] ? __kfree_skb+0x20/0x20 [ 33.371884] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 33.376443] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 33.381519] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 33.386507] ? trace_hardirqs_on+0xd/0x10 [ 33.390634] ? skb_dequeue+0x12f/0x180 [ 33.394494] skb_queue_purge+0x19/0x40 [ 33.398363] packet_sock_destruct+0x93/0x290 [ 33.402744] ? packet_mm_close+0xc0/0xc0 [ 33.406779] ? graph_lock+0x170/0x170 [ 33.410552] ? __free_object+0x16e/0x330 [ 33.414586] ? __list_del_entry_valid.cold.1+0x58/0x58 [ 33.419838] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 33.424396] ? packet_mm_close+0xc0/0xc0 [ 33.428440] __sk_destruct+0xff/0xa40 [ 33.432220] ? sock_warn_obsolete_bsdism+0xb0/0xb0 [ 33.437129] ? graph_lock+0x170/0x170 [ 33.440903] ? lock_downgrade+0x8e0/0x8e0 [ 33.445033] ? __lock_is_held+0xb5/0x140 [ 33.449071] ? kasan_check_read+0x11/0x20 [ 33.453194] ? do_raw_spin_unlock+0x9e/0x2e0 [ 33.457576] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 33.462137] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 33.467219] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.472730] ? refcount_sub_and_test+0x212/0x330 [ 33.477461] ? refcount_inc_not_zero+0x2d0/0x2d0 [ 33.482193] ? refcount_inc_not_zero+0x2d0/0x2d0 [ 33.486920] ? pcpu_free_area+0xa90/0xa90 [ 33.491042] sk_destruct+0x78/0x90 [ 33.494578] __sk_free+0x22e/0x340 [ 33.498104] sk_free+0x42/0x50 [ 33.501274] packet_release+0xa18/0xd50 [ 33.505232] ? lock_downgrade+0x8e0/0x8e0 [ 33.509353] ? packet_lookup_frame+0x270/0x270 [ 33.513912] ? cpumask_weight.constprop.5+0x44/0x44 [ 33.518901] ? do_raw_spin_lock+0xc1/0x200 [ 33.523113] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 33.528623] ? locks_remove_file+0x3f7/0x5a0 [ 33.533008] ? fcntl_setlk+0x1020/0x1020 [ 33.537050] ? fsnotify+0x415/0x1100 [ 33.540740] ? fsnotify_first_mark+0x330/0x330 [ 33.545298] sock_release+0x96/0x1b0 [ 33.549848] ? sock_alloc_file+0x4e0/0x4e0 [ 33.554063] sock_close+0x16/0x20 [ 33.557493] __fput+0x34d/0x890 [ 33.560744] ? fput+0x1a0/0x1a0 [ 33.564000] ? check_same_owner+0x320/0x320 [ 33.568310] ____fput+0x15/0x20 [ 33.571568] task_work_run+0x1e4/0x290 [ 33.575430] ? task_work_cancel+0x240/0x240 [ 33.579729] ? switch_task_namespaces+0xbd/0xd0 [ 33.584374] do_exit+0x1aee/0x2730 [ 33.587891] ? do_raw_spin_unlock+0x61/0x2e0 [ 33.592279] ? mm_update_next_owner+0x980/0x980 [ 33.596922] ? kasan_check_write+0x14/0x20 [ 33.601130] ? do_raw_spin_lock+0xc1/0x200 [ 33.605339] ? trace_hardirqs_off+0xd/0x10 [ 33.609547] ? _raw_spin_unlock_irqrestore+0x63/0xc0 [ 33.614633] ? debug_check_no_obj_freed+0x2ff/0x584 [ 33.619625] ? trace_hardirqs_off+0xd/0x10 [ 33.623837] ? quarantine_put+0xeb/0x190 [ 33.627879] ? kfree+0x111/0x260 [ 33.631226] ? ___sys_sendmsg+0x31a/0x940 [ 33.635349] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 33.640338] ? trace_hardirqs_on+0xd/0x10 [ 33.644458] ? ___sys_sendmsg+0x31f/0x940 [ 33.648580] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.654093] ? copy_msghdr_from_user+0x560/0x560 [ 33.658840] ? vm_insert_mixed_mkwrite+0x40/0x40 [ 33.663580] ? graph_lock+0x170/0x170 [ 33.667358] ? graph_lock+0x170/0x170 [ 33.671132] ? find_held_lock+0x36/0x1c0 [ 33.675172] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.680687] ? __fget_light+0x2ef/0x430 [ 33.684639] ? fget_raw+0x20/0x20 [ 33.688070] ? find_held_lock+0x36/0x1c0 [ 33.692114] ? lock_downgrade+0x8e0/0x8e0 [ 33.696238] ? handle_mm_fault+0x8c0/0xc70 [ 33.700451] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 33.705961] ? sockfd_lookup_light+0xc5/0x160 [ 33.710443] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.715964] ? __sys_sendmsg+0x1aa/0x270 [ 33.720000] ? SyS_shutdown+0x30/0x30 [ 33.723787] ? __do_page_fault+0x441/0xe40 [ 33.727999] do_group_exit+0x16f/0x430 [ 33.731876] ? SyS_exit+0x30/0x30 [ 33.735307] ? syscall_slow_exit_work+0x4f0/0x4f0 [ 33.740123] ? do_syscall_64+0xb7/0x9d0 [ 33.744071] ? do_group_exit+0x430/0x430 [ 33.748106] SyS_exit_group+0x1d/0x20 [ 33.751883] do_syscall_64+0x29e/0x9d0 [ 33.755767] ? vmalloc_sync_all+0x30/0x30 [ 33.759891] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 33.764620] ? syscall_return_slowpath+0x5c0/0x5c0 [ 33.769525] ? syscall_return_slowpath+0x30f/0x5c0 [ 33.774430] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 33.779771] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 33.784593] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 33.789759] RIP: 0033:0x4418f9 [ 33.792922] RSP: 002b:00007ffcc5989788 EFLAGS: 00000206 ORIG_RAX: 00000000000000e7 [ 33.800611] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004418f9 [ 33.807856] RDX: 00000000004418f9 RSI: 0000000000000000 RDI: 0000000000000001 [ 33.815102] RBP: 00000000006cd018 R08: 0000000000000000 R09: 0000000000000003 [ 33.822348] R10: 0000000000000000 R11: 0000000000000206 R12: 00000000004025f0 [ 33.829594] R13: 0000000000402680 R14: 0000000000000000 R15: 0000000000000000 [ 33.837396] Dumping ftrace buffer: [ 33.840911] (ftrace buffer empty) [ 33.844616] Kernel Offset: disabled [ 33.848215] Rebooting in 86400 seconds..