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 '10.128.0.18' (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: [ 28.689800] IPVS: ftp: loaded support on port[0] = 21 [ 28.875272] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.881713] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.889089] device bridge_slave_0 entered promiscuous mode [ 28.905305] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.911671] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.918747] device bridge_slave_1 entered promiscuous mode [ 28.933615] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 28.948833] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 28.988668] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 29.005872] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 29.063628] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 29.070819] team0: Port device team_slave_0 added [ 29.085271] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 29.092518] team0: Port device team_slave_1 added [ 29.107343] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 29.124249] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 29.140427] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 29.157400] 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 [ 29.265351] bridge0: port 2(bridge_slave_1) entered blocking state [ 29.271791] bridge0: port 2(bridge_slave_1) entered forwarding state [ 29.278692] bridge0: port 1(bridge_slave_0) entered blocking state [ 29.285060] 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 [ 29.666714] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 29.672815] 8021q: adding VLAN 0 to HW filter on device bond0 [ 29.712374] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 29.752320] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 29.759970] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 29.796224] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 29.802324] 8021q: adding VLAN 0 to HW filter on device team0 [ 29.822301] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready executing program [ 30.042127] ================================================================== [ 30.049573] BUG: KASAN: use-after-free in skb_release_data+0x19b/0x860 [ 30.056219] Write of size 4 at addr ffff8801d7b6d1a0 by task syzkaller767949/4453 [ 30.063810] [ 30.065420] CPU: 1 PID: 4453 Comm: syzkaller767949 Not tainted 4.16.0+ #1 [ 30.072320] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.081647] Call Trace: [ 30.084218] dump_stack+0x1b9/0x294 [ 30.087827] ? dump_stack_print_info.cold.2+0x52/0x52 [ 30.092994] ? printk+0x9e/0xba [ 30.096257] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 30.100992] ? kasan_check_write+0x14/0x20 [ 30.105211] print_address_description+0x6c/0x20b [ 30.110037] ? skb_release_data+0x19b/0x860 [ 30.114344] kasan_report.cold.7+0x242/0x2fe [ 30.118731] check_memory_region+0x13e/0x1b0 [ 30.123115] kasan_check_write+0x14/0x20 [ 30.127152] skb_release_data+0x19b/0x860 [ 30.131280] ? skb_tx_error+0x2f0/0x2f0 [ 30.135233] ? kasan_check_read+0x11/0x20 [ 30.139358] ? rcu_is_watching+0x85/0x140 [ 30.143485] ? kasan_check_write+0x14/0x20 [ 30.147697] ? sock_rmem_free+0x6f/0x90 [ 30.151656] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.157175] skb_release_all+0x4a/0x60 [ 30.161047] kfree_skb+0x195/0x560 [ 30.164565] ? skb_queue_purge+0x19/0x40 [ 30.168600] ? __kfree_skb+0x20/0x20 [ 30.172296] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 30.176859] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 30.181939] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 30.186930] ? trace_hardirqs_on+0xd/0x10 [ 30.191058] ? skb_dequeue+0x12f/0x180 [ 30.194925] skb_queue_purge+0x19/0x40 [ 30.198790] packet_sock_destruct+0x93/0x290 [ 30.203174] ? packet_mm_close+0xc0/0xc0 [ 30.207214] ? graph_lock+0x170/0x170 [ 30.210999] ? __free_object+0x16e/0x330 [ 30.215046] ? __list_del_entry_valid.cold.1+0x58/0x58 [ 30.220301] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 30.224862] ? packet_mm_close+0xc0/0xc0 [ 30.228903] __sk_destruct+0xff/0xa40 [ 30.232690] ? sock_warn_obsolete_bsdism+0xb0/0xb0 [ 30.237597] ? graph_lock+0x170/0x170 [ 30.241375] ? lock_downgrade+0x8e0/0x8e0 [ 30.245500] ? __lock_is_held+0xb5/0x140 [ 30.249548] ? kasan_check_read+0x11/0x20 [ 30.253674] ? do_raw_spin_unlock+0x9e/0x2e0 [ 30.258069] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 30.262640] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 30.267728] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.273245] ? refcount_sub_and_test+0x212/0x330 [ 30.277978] ? refcount_inc_not_zero+0x2d0/0x2d0 [ 30.282712] ? refcount_inc_not_zero+0x2d0/0x2d0 [ 30.287445] ? pcpu_free_area+0xa90/0xa90 [ 30.291574] sk_destruct+0x78/0x90 [ 30.295090] __sk_free+0x22e/0x340 [ 30.298607] sk_free+0x42/0x50 [ 30.301778] packet_release+0xa18/0xd50 [ 30.305729] ? lock_downgrade+0x8e0/0x8e0 [ 30.309860] ? packet_lookup_frame+0x270/0x270 [ 30.314421] ? cpumask_weight.constprop.5+0x44/0x44 [ 30.319415] ? do_raw_spin_lock+0xc1/0x200 [ 30.323629] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.329145] ? locks_remove_file+0x3f7/0x5a0 [ 30.333533] ? fcntl_setlk+0x1020/0x1020 [ 30.337574] ? fsnotify+0x415/0x1100 [ 30.341279] ? fsnotify_first_mark+0x330/0x330 [ 30.345841] sock_release+0x96/0x1b0 [ 30.349532] ? sock_alloc_file+0x4e0/0x4e0 [ 30.353754] sock_close+0x16/0x20 [ 30.357188] __fput+0x34d/0x890 [ 30.360447] ? fput+0x1a0/0x1a0 [ 30.363711] ? check_same_owner+0x320/0x320 [ 30.368016] ____fput+0x15/0x20 [ 30.371279] task_work_run+0x1e4/0x290 [ 30.375146] ? task_work_cancel+0x240/0x240 [ 30.379445] ? switch_task_namespaces+0xbd/0xd0 [ 30.384093] do_exit+0x1aee/0x2730 [ 30.387613] ? mm_update_next_owner+0x980/0x980 [ 30.392259] ? find_held_lock+0x36/0x1c0 [ 30.396301] ? lock_downgrade+0x8e0/0x8e0 [ 30.400692] ? kasan_check_read+0x11/0x20 [ 30.404819] ? lock_release+0xa10/0xa10 [ 30.408783] ? check_same_owner+0x320/0x320 [ 30.413083] ? __check_object_size+0x95/0x5d9 [ 30.417556] ? __might_sleep+0x95/0x190 [ 30.421510] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.427034] ? _copy_from_user+0xdf/0x150 [ 30.431163] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 30.436156] ? rw_copy_check_uvector+0x2d3/0x3a0 [ 30.440889] ? kasan_check_read+0x11/0x20 [ 30.445021] ? rcu_is_watching+0x85/0x140 [ 30.449151] ? rcu_pm_notify+0xc0/0xc0 [ 30.453028] ? vfs_writev+0x255/0x330 [ 30.456810] ? rcu_read_lock_sched_held+0x108/0x120 [ 30.461821] ? kfree+0x1e9/0x260 [ 30.465184] ? vfs_writev+0xfc/0x330 [ 30.468878] ? vfs_iter_write+0xb0/0xb0 [ 30.472831] ? lock_downgrade+0x8e0/0x8e0 [ 30.476959] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.482475] ? sockfd_lookup_light+0xc5/0x160 [ 30.486956] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.492472] ? __fdget_pos+0xd6/0x1e0 [ 30.496249] ? __fdget_raw+0x20/0x20 [ 30.499946] do_group_exit+0x16f/0x430 [ 30.503818] ? SyS_exit+0x30/0x30 [ 30.507250] ? syscall_slow_exit_work+0x4f0/0x4f0 [ 30.512069] ? do_syscall_64+0xb7/0x9d0 [ 30.516030] ? do_group_exit+0x430/0x430 [ 30.520070] SyS_exit_group+0x1d/0x20 [ 30.523851] do_syscall_64+0x29e/0x9d0 [ 30.527716] ? vmalloc_sync_all+0x30/0x30 [ 30.531842] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 30.536579] ? syscall_return_slowpath+0x5c0/0x5c0 [ 30.541488] ? syscall_return_slowpath+0x30f/0x5c0 [ 30.546397] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 30.551741] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.556571] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 30.561739] RIP: 0033:0x441a69 [ 30.564906] RSP: 002b:00007ffdfa197e68 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7 [ 30.572595] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441a69 [ 30.579846] RDX: 00000000004419a0 RSI: 0000000000000002 RDI: 0000000000000001 [ 30.587099] RBP: 00000000006cd018 R08: 0000000000000000 R09: 0000000000000003 [ 30.594347] R10: 0000000000000002 R11: 0000000000000202 R12: 0000000000402760 [ 30.601597] R13: 00000000004027f0 R14: 0000000000000000 R15: 0000000000000000 [ 30.608851] [ 30.610457] Allocated by task 4453: [ 30.614071] save_stack+0x43/0xd0 [ 30.617503] kasan_kmalloc+0xc4/0xe0 [ 30.621202] __kmalloc_node_track_caller+0x47/0x70 [ 30.626110] __kmalloc_reserve.isra.38+0x3a/0xe0 [ 30.630845] __alloc_skb+0x14d/0x780 [ 30.634533] alloc_skb_with_frags+0x137/0x760 [ 30.639028] sock_alloc_send_pskb+0x87a/0xae0 [ 30.643512] packet_sendmsg+0x1bd1/0x60b0 [ 30.647638] sock_sendmsg+0xd5/0x120 [ 30.651328] ___sys_sendmsg+0x805/0x940 [ 30.655278] __sys_sendmsg+0x115/0x270 [ 30.659139] SyS_sendmsg+0x29/0x30 [ 30.662662] do_syscall_64+0x29e/0x9d0 [ 30.666525] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 30.671686] [ 30.673287] Freed by task 4453: [ 30.676543] save_stack+0x43/0xd0 [ 30.679972] __kasan_slab_free+0x11a/0x170 [ 30.684183] kasan_slab_free+0xe/0x10 [ 30.687961] kfree+0xd9/0x260 [ 30.691045] skb_free_head+0x99/0xc0 [ 30.694742] skb_release_data+0x690/0x860 [ 30.698864] skb_release_all+0x4a/0x60 [ 30.702728] kfree_skb+0x195/0x560 [ 30.706247] ip6_tnl_start_xmit+0xa44/0x2290 [ 30.710631] dev_hard_start_xmit+0x264/0xc10 [ 30.715024] __dev_queue_xmit+0x2724/0x34c0 [ 30.719325] dev_queue_xmit+0x17/0x20 [ 30.723102] packet_sendmsg+0x411c/0x60b0 [ 30.727229] sock_sendmsg+0xd5/0x120 [ 30.730916] ___sys_sendmsg+0x805/0x940 [ 30.734865] __sys_sendmsg+0x115/0x270 [ 30.738729] SyS_sendmsg+0x29/0x30 [ 30.742247] do_syscall_64+0x29e/0x9d0 [ 30.746112] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 30.751271] [ 30.752878] The buggy address belongs to the object at ffff8801d7b6d0c0 [ 30.752878] which belongs to the cache kmalloc-512 of size 512 [ 30.765512] The buggy address is located 224 bytes inside of [ 30.765512] 512-byte region [ffff8801d7b6d0c0, ffff8801d7b6d2c0) [ 30.780136] The buggy address belongs to the page: [ 30.785046] page:ffffea00075edb40 count:1 mapcount:0 mapping:ffff8801d7b6d0c0 index:0x0 [ 30.793164] flags: 0x2fffc0000000100(slab) [ 30.797377] raw: 02fffc0000000100 ffff8801d7b6d0c0 0000000000000000 0000000100000006 [ 30.805235] raw: ffffea00075fdfa0 ffffea00075fdf60 ffff8801dac00940 0000000000000000 [ 30.813088] page dumped because: kasan: bad access detected [ 30.818768] [ 30.820369] Memory state around the buggy address: [ 30.825273] ffff8801d7b6d080: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb [ 30.832609] ffff8801d7b6d100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 30.839944] >ffff8801d7b6d180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 30.847276] ^ [ 30.851660] ffff8801d7b6d200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 30.859006] ffff8801d7b6d280: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 30.866345] ================================================================== [ 30.873675] Disabling lock debugging due to kernel taint [ 30.879645] Kernel panic - not syncing: panic_on_warn set ... [ 30.879645] [ 30.887020] CPU: 1 PID: 4453 Comm: syzkaller767949 Tainted: G B 4.16.0+ #1 [ 30.895324] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.904665] Call Trace: [ 30.907236] dump_stack+0x1b9/0x294 [ 30.910842] ? dump_stack_print_info.cold.2+0x52/0x52 [ 30.916014] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 30.920754] ? skb_release_data+0xd0/0x860 [ 30.924963] panic+0x22f/0x4de [ 30.928132] ? add_taint.cold.5+0x16/0x16 [ 30.932260] ? do_raw_spin_unlock+0x9e/0x2e0 [ 30.936645] ? do_raw_spin_unlock+0x9e/0x2e0 [ 30.941030] ? skb_release_data+0x19b/0x860 [ 30.945329] kasan_end_report+0x47/0x4f [ 30.949298] kasan_report.cold.7+0x76/0x2fe [ 30.953606] check_memory_region+0x13e/0x1b0 [ 30.957990] kasan_check_write+0x14/0x20 [ 30.962030] skb_release_data+0x19b/0x860 [ 30.966156] ? skb_tx_error+0x2f0/0x2f0 [ 30.970104] ? kasan_check_read+0x11/0x20 [ 30.974228] ? rcu_is_watching+0x85/0x140 [ 30.978353] ? kasan_check_write+0x14/0x20 [ 30.982564] ? sock_rmem_free+0x6f/0x90 [ 30.986518] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 30.992032] skb_release_all+0x4a/0x60 [ 30.995903] kfree_skb+0x195/0x560 [ 30.999417] ? skb_queue_purge+0x19/0x40 [ 31.003451] ? __kfree_skb+0x20/0x20 [ 31.007149] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 31.011711] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 31.016791] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 31.021781] ? trace_hardirqs_on+0xd/0x10 [ 31.025903] ? skb_dequeue+0x12f/0x180 [ 31.029765] skb_queue_purge+0x19/0x40 [ 31.033637] packet_sock_destruct+0x93/0x290 [ 31.038026] ? packet_mm_close+0xc0/0xc0 [ 31.042061] ? graph_lock+0x170/0x170 [ 31.045844] ? __free_object+0x16e/0x330 [ 31.049882] ? __list_del_entry_valid.cold.1+0x58/0x58 [ 31.055143] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 31.059701] ? packet_mm_close+0xc0/0xc0 [ 31.063738] __sk_destruct+0xff/0xa40 [ 31.067520] ? sock_warn_obsolete_bsdism+0xb0/0xb0 [ 31.072423] ? graph_lock+0x170/0x170 [ 31.076201] ? lock_downgrade+0x8e0/0x8e0 [ 31.080321] ? __lock_is_held+0xb5/0x140 [ 31.084359] ? kasan_check_read+0x11/0x20 [ 31.088481] ? do_raw_spin_unlock+0x9e/0x2e0 [ 31.092863] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 31.097420] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 31.102503] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.108028] ? refcount_sub_and_test+0x212/0x330 [ 31.112762] ? refcount_inc_not_zero+0x2d0/0x2d0 [ 31.117491] ? refcount_inc_not_zero+0x2d0/0x2d0 [ 31.122221] ? pcpu_free_area+0xa90/0xa90 [ 31.126345] sk_destruct+0x78/0x90 [ 31.129863] __sk_free+0x22e/0x340 [ 31.133377] sk_free+0x42/0x50 [ 31.136546] packet_release+0xa18/0xd50 [ 31.140496] ? lock_downgrade+0x8e0/0x8e0 [ 31.144620] ? packet_lookup_frame+0x270/0x270 [ 31.149179] ? cpumask_weight.constprop.5+0x44/0x44 [ 31.154181] ? do_raw_spin_lock+0xc1/0x200 [ 31.158392] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.163902] ? locks_remove_file+0x3f7/0x5a0 [ 31.168284] ? fcntl_setlk+0x1020/0x1020 [ 31.172326] ? fsnotify+0x415/0x1100 [ 31.176029] ? fsnotify_first_mark+0x330/0x330 [ 31.180590] sock_release+0x96/0x1b0 [ 31.184280] ? sock_alloc_file+0x4e0/0x4e0 [ 31.188496] sock_close+0x16/0x20 [ 31.191924] __fput+0x34d/0x890 [ 31.195180] ? fput+0x1a0/0x1a0 [ 31.198435] ? check_same_owner+0x320/0x320 [ 31.202737] ____fput+0x15/0x20 [ 31.205992] task_work_run+0x1e4/0x290 [ 31.209857] ? task_work_cancel+0x240/0x240 [ 31.214156] ? switch_task_namespaces+0xbd/0xd0 [ 31.218801] do_exit+0x1aee/0x2730 [ 31.222318] ? mm_update_next_owner+0x980/0x980 [ 31.226963] ? find_held_lock+0x36/0x1c0 [ 31.231001] ? lock_downgrade+0x8e0/0x8e0 [ 31.235136] ? kasan_check_read+0x11/0x20 [ 31.239258] ? lock_release+0xa10/0xa10 [ 31.243208] ? check_same_owner+0x320/0x320 [ 31.247504] ? __check_object_size+0x95/0x5d9 [ 31.251974] ? __might_sleep+0x95/0x190 [ 31.255925] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.261437] ? _copy_from_user+0xdf/0x150 [ 31.265561] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 31.270555] ? rw_copy_check_uvector+0x2d3/0x3a0 [ 31.275290] ? kasan_check_read+0x11/0x20 [ 31.279413] ? rcu_is_watching+0x85/0x140 [ 31.283534] ? rcu_pm_notify+0xc0/0xc0 [ 31.287400] ? vfs_writev+0x255/0x330 [ 31.291175] ? rcu_read_lock_sched_held+0x108/0x120 [ 31.296166] ? kfree+0x1e9/0x260 [ 31.299507] ? vfs_writev+0xfc/0x330 [ 31.303199] ? vfs_iter_write+0xb0/0xb0 [ 31.307150] ? lock_downgrade+0x8e0/0x8e0 [ 31.311278] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.316792] ? sockfd_lookup_light+0xc5/0x160 [ 31.321261] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.326775] ? __fdget_pos+0xd6/0x1e0 [ 31.330548] ? __fdget_raw+0x20/0x20 [ 31.334241] do_group_exit+0x16f/0x430 [ 31.338106] ? SyS_exit+0x30/0x30 [ 31.341537] ? syscall_slow_exit_work+0x4f0/0x4f0 [ 31.346356] ? do_syscall_64+0xb7/0x9d0 [ 31.350311] ? do_group_exit+0x430/0x430 [ 31.354347] SyS_exit_group+0x1d/0x20 [ 31.358126] do_syscall_64+0x29e/0x9d0 [ 31.361991] ? vmalloc_sync_all+0x30/0x30 [ 31.366123] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 31.370858] ? syscall_return_slowpath+0x5c0/0x5c0 [ 31.375762] ? syscall_return_slowpath+0x30f/0x5c0 [ 31.380672] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 31.386017] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 31.390846] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 31.396029] RIP: 0033:0x441a69 [ 31.399193] RSP: 002b:00007ffdfa197e68 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7 [ 31.406874] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441a69 [ 31.414125] RDX: 00000000004419a0 RSI: 0000000000000002 RDI: 0000000000000001 [ 31.421376] RBP: 00000000006cd018 R08: 0000000000000000 R09: 0000000000000003 [ 31.428624] R10: 0000000000000002 R11: 0000000000000202 R12: 0000000000402760 [ 31.435870] R13: 00000000004027f0 R14: 0000000000000000 R15: 0000000000000000 [ 31.443592] Dumping ftrace buffer: [ 31.447117] (ftrace buffer empty) [ 31.450807] Kernel Offset: disabled [ 31.454409] Rebooting in 86400 seconds..