[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 40.734385] audit: type=1800 audit(1546180677.234:25): pid=8062 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 40.754436] audit: type=1800 audit(1546180677.234:26): pid=8062 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 40.783232] audit: type=1800 audit(1546180677.234:27): pid=8062 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] 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 syzkaller login: [ 44.526161] sshd (8199) used greatest stack depth: 15720 bytes left Warning: Permanently added '10.128.0.122' (ECDSA) to the list of known hosts. 2018/12/30 14:38:08 parsed 1 programs 2018/12/30 14:38:09 executed programs: 0 [ 53.468180] IPVS: ftp: loaded support on port[0] = 21 [ 53.533510] chnl_net:caif_netlink_parms(): no params data found [ 53.568971] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.575567] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.582726] device bridge_slave_0 entered promiscuous mode [ 53.589971] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.596450] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.603397] device bridge_slave_1 entered promiscuous mode [ 53.620366] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 53.629424] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 53.645435] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 53.654635] team0: Port device team_slave_0 added [ 53.659975] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 53.667436] team0: Port device team_slave_1 added [ 53.672626] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 53.680000] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 53.738904] device hsr_slave_0 entered promiscuous mode [ 53.776599] device hsr_slave_1 entered promiscuous mode [ 53.816680] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 53.823584] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 53.837710] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.844096] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.851033] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.857412] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.890758] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 53.897135] 8021q: adding VLAN 0 to HW filter on device bond0 [ 53.904904] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 53.913487] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 53.933627] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.942340] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.950307] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 53.961605] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 53.968019] 8021q: adding VLAN 0 to HW filter on device team0 [ 53.976696] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 53.984270] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.990662] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.006821] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 54.014493] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.020892] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.029673] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 54.038639] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 54.053412] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 54.063779] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 54.074447] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 54.081195] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 54.089341] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 54.097647] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 54.105474] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 54.116395] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 54.125574] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 54.299765] ================================================================== [ 54.307282] BUG: KASAN: use-after-free in __smc_diag_dump.isra.4+0x2792/0x2ae0 [ 54.314636] Read of size 8 at addr ffff88809cabc920 by task syz-executor0/8257 [ 54.321979] [ 54.323603] CPU: 0 PID: 8257 Comm: syz-executor0 Not tainted 4.20.0+ #175 [ 54.330532] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.339880] Call Trace: [ 54.342466] dump_stack+0x1d3/0x2c6 [ 54.346094] ? dump_stack_print_info.cold.1+0x20/0x20 [ 54.351281] ? printk+0xa7/0xcf [ 54.354555] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 54.359303] ? lock_release+0xa00/0xa00 [ 54.363283] print_address_description.cold.5+0x9/0x1ff [ 54.368643] ? __smc_diag_dump.isra.4+0x2792/0x2ae0 [ 54.373658] kasan_report.cold.6+0x1b/0x39 [ 54.377890] ? __smc_diag_dump.isra.4+0x2792/0x2ae0 [ 54.382905] ? __smc_diag_dump.isra.4+0x2792/0x2ae0 [ 54.387921] __asan_report_load8_noabort+0x14/0x20 [ 54.392869] __smc_diag_dump.isra.4+0x2792/0x2ae0 [ 54.397710] ? netlink_rcv_skb+0x1b5/0x430 [ 54.401942] ? sock_sendmsg+0xd5/0x120 [ 54.405827] ? smc_diag_handler_dump+0x350/0x350 [ 54.410602] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.416138] ? check_preemption_disabled+0x48/0x280 [ 54.421155] ? __lock_is_held+0xb5/0x140 [ 54.425224] ? __kmalloc_node_track_caller+0x3c/0x70 [ 54.430337] ? rcu_read_lock_sched_held+0x108/0x120 [ 54.435350] ? kasan_unpoison_shadow+0x35/0x50 [ 54.439932] ? lock_acquire+0x1ed/0x520 [ 54.443901] ? smc_diag_dump_proto.isra.5+0xf8/0x3c0 [ 54.449000] ? __kmalloc_node_track_caller+0x4d/0x70 [ 54.454100] ? lock_release+0xa00/0xa00 [ 54.458072] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.463605] ? __alloc_skb+0x4bd/0x760 [ 54.467494] ? __netlink_dump_start+0x592/0x7c0 [ 54.472182] ? kasan_check_write+0x14/0x20 [ 54.476416] smc_diag_dump_proto.isra.5+0x2e8/0x3c0 [ 54.481435] ? __smc_diag_dump.isra.4+0x2ae0/0x2ae0 [ 54.486452] ? kasan_check_write+0x14/0x20 [ 54.490690] smc_diag_dump+0x26/0x70 [ 54.494407] netlink_dump+0x600/0x1080 [ 54.498293] ? check_preemption_disabled+0x48/0x280 [ 54.503333] ? netlink_broadcast+0x50/0x50 [ 54.507583] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 54.512875] ? rcu_read_unlock_special+0x370/0x370 [ 54.517821] __netlink_dump_start+0x59a/0x7c0 [ 54.522334] smc_diag_handler_dump+0x2a3/0x350 [ 54.526918] ? smc_gid_be16_convert+0x2c0/0x2c0 [ 54.531588] ? smc_diag_dump_proto.isra.5+0x3c0/0x3c0 [ 54.536780] ? netlink_deliver_tap+0x355/0xf40 [ 54.541365] sock_diag_rcv_msg+0x31d/0x410 [ 54.545596] netlink_rcv_skb+0x16c/0x430 [ 54.549658] ? sock_diag_bind+0x80/0x80 [ 54.553627] ? netlink_ack+0xb70/0xb70 [ 54.557523] sock_diag_rcv+0x2a/0x40 [ 54.561230] netlink_unicast+0x59f/0x750 [ 54.565289] ? netlink_attachskb+0x9a0/0x9a0 [ 54.569696] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.575241] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 54.580257] netlink_sendmsg+0xa18/0xfc0 [ 54.584321] ? netlink_unicast+0x750/0x750 [ 54.588557] ? smack_socket_sendmsg+0xb0/0x190 [ 54.593144] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.598684] ? security_socket_sendmsg+0x94/0xc0 [ 54.603459] ? netlink_unicast+0x750/0x750 [ 54.607705] sock_sendmsg+0xd5/0x120 [ 54.611417] ___sys_sendmsg+0x7fd/0x930 [ 54.615390] ? find_held_lock+0x36/0x1c0 [ 54.619454] ? copy_msghdr_from_user+0x580/0x580 [ 54.624207] ? __fd_install+0x2b5/0x8f0 [ 54.628187] ? __fget_light+0x2e9/0x430 [ 54.632165] ? fget_raw+0x20/0x20 [ 54.635613] ? __might_fault+0x12b/0x1e0 [ 54.639668] ? lock_downgrade+0x900/0x900 [ 54.643815] ? lock_release+0xa00/0xa00 [ 54.647795] ? arch_local_save_flags+0x40/0x40 [ 54.652376] ? posix_ktime_get_ts+0x15/0x20 [ 54.656693] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 54.662144] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 54.667686] ? sockfd_lookup_light+0xc5/0x160 [ 54.672179] __sys_sendmsg+0x11d/0x280 [ 54.676064] ? __ia32_sys_shutdown+0x80/0x80 [ 54.680469] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 54.686004] ? put_timespec64+0x10f/0x1b0 [ 54.690155] ? do_syscall_64+0x9a/0x820 [ 54.694125] ? do_syscall_64+0x9a/0x820 [ 54.698106] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 54.703560] __x64_sys_sendmsg+0x78/0xb0 [ 54.707620] do_syscall_64+0x1b9/0x820 [ 54.711503] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 54.716876] ? syscall_return_slowpath+0x5e0/0x5e0 [ 54.721805] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 54.726652] ? trace_hardirqs_on_caller+0x310/0x310 [ 54.731668] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 54.736685] ? prepare_exit_to_usermode+0x291/0x3b0 [ 54.741703] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 54.746560] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 54.751740] RIP: 0033:0x457ec9 [ 54.754933] Code: 6d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 54.773831] RSP: 002b:00007fe7da31ec78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 54.781543] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457ec9 [ 54.788802] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 54.796073] RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 [ 54.803337] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe7da31f6d4 [ 54.810599] R13: 00000000004c5160 R14: 00000000004d88c8 R15: 00000000ffffffff [ 54.817892] [ 54.819510] Allocated by task 8257: [ 54.823148] save_stack+0x43/0xd0 [ 54.826596] kasan_kmalloc+0xcb/0xd0 [ 54.830306] kasan_slab_alloc+0x12/0x20 [ 54.834269] kmem_cache_alloc+0x130/0x730 [ 54.838410] sock_alloc_inode+0x1d/0x260 [ 54.842467] alloc_inode+0x63/0x190 [ 54.846096] new_inode_pseudo+0x71/0x1a0 [ 54.850163] sock_alloc+0x41/0x270 [ 54.853754] __sock_create+0x175/0x930 [ 54.857636] sock_create_kern+0x3b/0x50 [ 54.861600] smc_create+0x17c/0x3b0 [ 54.865221] __sock_create+0x536/0x930 [ 54.869104] __sys_socket+0x106/0x260 [ 54.872899] __x64_sys_socket+0x73/0xb0 [ 54.876882] do_syscall_64+0x1b9/0x820 [ 54.880793] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 54.885969] [ 54.887588] Freed by task 8256: [ 54.890896] save_stack+0x43/0xd0 [ 54.894341] __kasan_slab_free+0x102/0x150 [ 54.898596] kasan_slab_free+0xe/0x10 [ 54.902402] kmem_cache_free+0x83/0x290 [ 54.906372] sock_destroy_inode+0x51/0x60 [ 54.910521] destroy_inode+0x159/0x200 [ 54.914401] evict+0x5e0/0x980 [ 54.917601] iput+0x679/0xa90 [ 54.920703] __sock_release+0x1ec/0x250 [ 54.924669] sock_release+0x17/0x20 [ 54.928306] smc_release+0x297/0x9a0 [ 54.932030] __sock_release+0xd7/0x250 [ 54.935912] sock_close+0x19/0x20 [ 54.939364] __fput+0x385/0xa50 [ 54.942654] ____fput+0x15/0x20 [ 54.945945] task_work_run+0x1e8/0x2a0 [ 54.949828] exit_to_usermode_loop+0x318/0x380 [ 54.954418] do_syscall_64+0x6be/0x820 [ 54.958300] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 54.963504] [ 54.965125] The buggy address belongs to the object at ffff88809cabc900 [ 54.965125] which belongs to the cache sock_inode_cache(17:syz0) of size 976 [ 54.978991] The buggy address is located 32 bytes inside of [ 54.978991] 976-byte region [ffff88809cabc900, ffff88809cabccd0) [ 54.990763] The buggy address belongs to the page: [ 54.995702] page:ffffea000272af00 count:1 mapcount:0 mapping:ffff888099b1e840 index:0xffff88809cabcffd [ 55.005168] flags: 0x1fffc0000000200(slab) [ 55.009399] raw: 01fffc0000000200 ffffea000259c748 ffffea0002a6f608 ffff888099b1e840 [ 55.017280] raw: ffff88809cabcffd ffff88809cabc000 0000000100000003 ffff8880a5db2cc0 [ 55.025146] page dumped because: kasan: bad access detected [ 55.030851] page->mem_cgroup:ffff8880a5db2cc0 [ 55.035338] [ 55.036956] Memory state around the buggy address: [ 55.041908] ffff88809cabc800: 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc [ 55.049763] ffff88809cabc880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 55.057116] >ffff88809cabc900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 55.064461] ^ [ 55.068873] ffff88809cabc980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 55.076234] ffff88809cabca00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 55.083577] ================================================================== [ 55.090926] Disabling lock debugging due to kernel taint [ 55.097962] Kernel panic - not syncing: panic_on_warn set ... [ 55.103873] CPU: 0 PID: 8257 Comm: syz-executor0 Tainted: G B 4.20.0+ #175 [ 55.112178] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.121525] Call Trace: [ 55.124113] dump_stack+0x1d3/0x2c6 [ 55.127736] ? dump_stack_print_info.cold.1+0x20/0x20 [ 55.132944] ? __smc_diag_dump.isra.4+0x26c0/0x2ae0 [ 55.137956] panic+0x2ad/0x55f [ 55.141154] ? add_taint.cold.5+0x16/0x16 [ 55.145304] ? trace_hardirqs_on+0xb4/0x310 [ 55.149625] ? __smc_diag_dump.isra.4+0x2792/0x2ae0 [ 55.154638] end_report+0x47/0x4f [ 55.158092] kasan_report.cold.6+0xe/0x39 [ 55.162237] ? __smc_diag_dump.isra.4+0x2792/0x2ae0 [ 55.167256] ? __smc_diag_dump.isra.4+0x2792/0x2ae0 [ 55.172272] __asan_report_load8_noabort+0x14/0x20 [ 55.177581] __smc_diag_dump.isra.4+0x2792/0x2ae0 [ 55.182423] ? netlink_rcv_skb+0x1b5/0x430 [ 55.186665] ? sock_sendmsg+0xd5/0x120 [ 55.190550] ? smc_diag_handler_dump+0x350/0x350 [ 55.195305] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.200847] ? check_preemption_disabled+0x48/0x280 [ 55.205874] ? __lock_is_held+0xb5/0x140 [ 55.209943] ? __kmalloc_node_track_caller+0x3c/0x70 [ 55.215050] ? rcu_read_lock_sched_held+0x108/0x120 [ 55.220064] ? kasan_unpoison_shadow+0x35/0x50 [ 55.224646] ? lock_acquire+0x1ed/0x520 [ 55.228642] ? smc_diag_dump_proto.isra.5+0xf8/0x3c0 [ 55.233742] ? __kmalloc_node_track_caller+0x4d/0x70 [ 55.238852] ? lock_release+0xa00/0xa00 [ 55.242890] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.248426] ? __alloc_skb+0x4bd/0x760 [ 55.252320] ? __netlink_dump_start+0x592/0x7c0 [ 55.256992] ? kasan_check_write+0x14/0x20 [ 55.261230] smc_diag_dump_proto.isra.5+0x2e8/0x3c0 [ 55.266248] ? __smc_diag_dump.isra.4+0x2ae0/0x2ae0 [ 55.271263] ? kasan_check_write+0x14/0x20 [ 55.275499] smc_diag_dump+0x26/0x70 [ 55.279220] netlink_dump+0x600/0x1080 [ 55.283100] ? check_preemption_disabled+0x48/0x280 [ 55.288115] ? netlink_broadcast+0x50/0x50 [ 55.292347] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 55.297625] ? rcu_read_unlock_special+0x370/0x370 [ 55.302562] __netlink_dump_start+0x59a/0x7c0 [ 55.307064] smc_diag_handler_dump+0x2a3/0x350 [ 55.311644] ? smc_gid_be16_convert+0x2c0/0x2c0 [ 55.316315] ? smc_diag_dump_proto.isra.5+0x3c0/0x3c0 [ 55.321504] ? netlink_deliver_tap+0x355/0xf40 [ 55.326102] sock_diag_rcv_msg+0x31d/0x410 [ 55.330339] netlink_rcv_skb+0x16c/0x430 [ 55.334400] ? sock_diag_bind+0x80/0x80 [ 55.338373] ? netlink_ack+0xb70/0xb70 [ 55.342269] sock_diag_rcv+0x2a/0x40 [ 55.345977] netlink_unicast+0x59f/0x750 [ 55.350037] ? netlink_attachskb+0x9a0/0x9a0 [ 55.354446] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.359984] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 55.365001] netlink_sendmsg+0xa18/0xfc0 [ 55.369063] ? netlink_unicast+0x750/0x750 [ 55.373319] ? smack_socket_sendmsg+0xb0/0x190 [ 55.377907] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.383443] ? security_socket_sendmsg+0x94/0xc0 [ 55.388194] ? netlink_unicast+0x750/0x750 [ 55.392438] sock_sendmsg+0xd5/0x120 [ 55.396151] ___sys_sendmsg+0x7fd/0x930 [ 55.400118] ? find_held_lock+0x36/0x1c0 [ 55.404177] ? copy_msghdr_from_user+0x580/0x580 [ 55.408962] ? __fd_install+0x2b5/0x8f0 [ 55.412936] ? __fget_light+0x2e9/0x430 [ 55.416930] ? fget_raw+0x20/0x20 [ 55.420392] ? __might_fault+0x12b/0x1e0 [ 55.424450] ? lock_downgrade+0x900/0x900 [ 55.428599] ? lock_release+0xa00/0xa00 [ 55.432569] ? arch_local_save_flags+0x40/0x40 [ 55.437147] ? posix_ktime_get_ts+0x15/0x20 [ 55.441465] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 55.446933] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 55.452469] ? sockfd_lookup_light+0xc5/0x160 [ 55.456964] __sys_sendmsg+0x11d/0x280 [ 55.460853] ? __ia32_sys_shutdown+0x80/0x80 [ 55.465264] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 55.470796] ? put_timespec64+0x10f/0x1b0 [ 55.474942] ? do_syscall_64+0x9a/0x820 [ 55.478911] ? do_syscall_64+0x9a/0x820 [ 55.482891] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 55.488344] __x64_sys_sendmsg+0x78/0xb0 [ 55.492404] do_syscall_64+0x1b9/0x820 [ 55.496289] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 55.501650] ? syscall_return_slowpath+0x5e0/0x5e0 [ 55.506588] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 55.511432] ? trace_hardirqs_on_caller+0x310/0x310 [ 55.516447] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 55.521463] ? prepare_exit_to_usermode+0x291/0x3b0 [ 55.526480] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 55.531325] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 55.536507] RIP: 0033:0x457ec9 [ 55.539694] Code: 6d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 55.558611] RSP: 002b:00007fe7da31ec78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 55.566324] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457ec9 [ 55.573589] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 55.580867] RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 [ 55.588132] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe7da31f6d4 [ 55.595394] R13: 00000000004c5160 R14: 00000000004d88c8 R15: 00000000ffffffff [ 55.603639] Kernel Offset: disabled [ 55.607264] Rebooting in 86400 seconds..