[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 39.001571] audit: type=1800 audit(1546178403.271:25): pid=7844 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 39.038388] audit: type=1800 audit(1546178403.271:26): pid=7844 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 39.064080] audit: type=1800 audit(1546178403.271:27): pid=7844 uid=0 auid=4294967295 ses=4294967295 subj==unconfined 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 Warning: Permanently added '10.128.0.117' (ECDSA) to the list of known hosts. 2018/12/30 14:00:12 parsed 1 programs syzkaller login: [ 49.514865] ld (8005) used greatest stack depth: 16384 bytes left 2018/12/30 14:00:13 executed programs: 0 [ 49.687595] IPVS: ftp: loaded support on port[0] = 21 [ 49.753237] chnl_net:caif_netlink_parms(): no params data found [ 49.788863] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.795551] bridge0: port 1(bridge_slave_0) entered disabled state [ 49.802782] device bridge_slave_0 entered promiscuous mode [ 49.810372] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.816751] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.824045] device bridge_slave_1 entered promiscuous mode [ 49.841289] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 49.850324] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 49.867298] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 49.875072] team0: Port device team_slave_0 added [ 49.880447] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 49.887563] team0: Port device team_slave_1 added [ 49.892954] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 49.900225] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 49.979992] device hsr_slave_0 entered promiscuous mode [ 50.048508] device hsr_slave_1 entered promiscuous mode [ 50.118494] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 50.125349] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 50.139468] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.145872] bridge0: port 2(bridge_slave_1) entered forwarding state [ 50.152758] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.159140] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.192244] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 50.198583] 8021q: adding VLAN 0 to HW filter on device bond0 [ 50.206573] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 50.215804] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 50.225930] bridge0: port 1(bridge_slave_0) entered disabled state [ 50.233492] bridge0: port 2(bridge_slave_1) entered disabled state [ 50.240777] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 50.252428] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 50.258636] 8021q: adding VLAN 0 to HW filter on device team0 [ 50.266914] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 50.275623] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.282037] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.300564] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 50.308351] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.314697] bridge0: port 2(bridge_slave_1) entered forwarding state [ 50.322363] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 50.330068] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 50.340874] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 50.347877] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 50.360233] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 50.369019] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 50.375012] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 50.391080] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 50.402069] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 50.490365] ================================================================== [ 50.497856] BUG: KASAN: use-after-free in __smc_diag_dump.isra.4+0x2792/0x2ae0 [ 50.505229] Read of size 8 at addr ffff8880958d8020 by task syz-executor0/8023 [ 50.512575] [ 50.514216] CPU: 0 PID: 8023 Comm: syz-executor0 Not tainted 4.20.0+ #396 [ 50.521132] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.530476] Call Trace: [ 50.533065] dump_stack+0x1d3/0x2c6 [ 50.536691] ? dump_stack_print_info.cold.1+0x20/0x20 [ 50.541876] ? printk+0xa7/0xcf [ 50.545153] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 50.549905] ? lock_release+0xa00/0xa00 [ 50.553941] print_address_description.cold.5+0x9/0x1ff [ 50.559358] ? __smc_diag_dump.isra.4+0x2792/0x2ae0 [ 50.564373] kasan_report.cold.6+0x1b/0x39 [ 50.568613] ? __smc_diag_dump.isra.4+0x2792/0x2ae0 [ 50.573649] ? __smc_diag_dump.isra.4+0x2792/0x2ae0 [ 50.578682] __asan_report_load8_noabort+0x14/0x20 [ 50.583612] __smc_diag_dump.isra.4+0x2792/0x2ae0 [ 50.588453] ? netlink_rcv_skb+0x1b5/0x430 [ 50.592686] ? sock_sendmsg+0xd5/0x120 [ 50.596576] ? smc_diag_handler_dump+0x350/0x350 [ 50.601333] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.606866] ? check_preemption_disabled+0x48/0x280 [ 50.611886] ? __lock_is_held+0xb5/0x140 [ 50.615953] ? __kmalloc_node_track_caller+0x3c/0x70 [ 50.621068] ? rcu_read_lock_sched_held+0x108/0x120 [ 50.626088] ? kasan_unpoison_shadow+0x35/0x50 [ 50.630711] ? lock_acquire+0x1ed/0x520 [ 50.634686] ? smc_diag_dump_proto.isra.5+0xf8/0x3c0 [ 50.639803] ? __kmalloc_node_track_caller+0x4d/0x70 [ 50.644904] ? lock_release+0xa00/0xa00 [ 50.648878] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.654413] ? __alloc_skb+0x4bd/0x760 [ 50.658299] ? __netlink_dump_start+0x592/0x7c0 [ 50.662980] ? kasan_check_write+0x14/0x20 [ 50.667226] smc_diag_dump_proto.isra.5+0x2e8/0x3c0 [ 50.672277] ? __smc_diag_dump.isra.4+0x2ae0/0x2ae0 [ 50.677293] ? kasan_check_write+0x14/0x20 [ 50.681528] smc_diag_dump+0x26/0x70 [ 50.685245] netlink_dump+0x600/0x1080 [ 50.689134] ? check_preemption_disabled+0x48/0x280 [ 50.694155] ? netlink_broadcast+0x50/0x50 [ 50.698390] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 50.703678] ? rcu_read_unlock_special+0x370/0x370 [ 50.708622] __netlink_dump_start+0x59a/0x7c0 [ 50.713125] smc_diag_handler_dump+0x2a3/0x350 [ 50.717709] ? smc_gid_be16_convert+0x2c0/0x2c0 [ 50.722394] ? smc_diag_dump_proto.isra.5+0x3c0/0x3c0 [ 50.727583] ? netlink_deliver_tap+0x355/0xf40 [ 50.732171] sock_diag_rcv_msg+0x31d/0x410 [ 50.736408] netlink_rcv_skb+0x16c/0x430 [ 50.740467] ? sock_diag_bind+0x80/0x80 [ 50.744443] ? netlink_ack+0xb70/0xb70 [ 50.748358] sock_diag_rcv+0x2a/0x40 [ 50.752073] netlink_unicast+0x59f/0x750 [ 50.756137] ? netlink_attachskb+0x9a0/0x9a0 [ 50.760547] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.766084] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 50.771101] netlink_sendmsg+0xa18/0xfc0 [ 50.775167] ? netlink_unicast+0x750/0x750 [ 50.779397] ? aa_sock_msg_perm.isra.14+0xba/0x160 [ 50.784327] ? apparmor_socket_sendmsg+0x29/0x30 [ 50.789080] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.794615] ? security_socket_sendmsg+0x94/0xc0 [ 50.799376] ? netlink_unicast+0x750/0x750 [ 50.803609] sock_sendmsg+0xd5/0x120 [ 50.807325] ___sys_sendmsg+0x7fd/0x930 [ 50.811295] ? find_held_lock+0x36/0x1c0 [ 50.815430] ? copy_msghdr_from_user+0x580/0x580 [ 50.820216] ? __fd_install+0x2b5/0x8f0 [ 50.824210] ? __fget_light+0x2e9/0x430 [ 50.828181] ? fget_raw+0x20/0x20 [ 50.831632] ? __might_fault+0x12b/0x1e0 [ 50.835705] ? lock_downgrade+0x900/0x900 [ 50.839853] ? lock_release+0xa00/0xa00 [ 50.843840] ? arch_local_save_flags+0x40/0x40 [ 50.848421] ? posix_ktime_get_ts+0x15/0x20 [ 50.852740] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 50.858193] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 50.863728] ? sockfd_lookup_light+0xc5/0x160 [ 50.868224] __sys_sendmsg+0x11d/0x280 [ 50.872111] ? __ia32_sys_shutdown+0x80/0x80 [ 50.876523] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 50.882058] ? put_timespec64+0x10f/0x1b0 [ 50.886211] ? do_syscall_64+0x9a/0x820 [ 50.890193] ? do_syscall_64+0x9a/0x820 [ 50.894172] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 50.899633] __x64_sys_sendmsg+0x78/0xb0 [ 50.903694] do_syscall_64+0x1b9/0x820 [ 50.907578] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 50.912944] ? syscall_return_slowpath+0x5e0/0x5e0 [ 50.917876] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.922718] ? trace_hardirqs_on_caller+0x310/0x310 [ 50.927777] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 50.932799] ? prepare_exit_to_usermode+0x291/0x3b0 [ 50.937833] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.942695] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.947875] RIP: 0033:0x457ec9 [ 50.951065] 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 [ 50.969959] RSP: 002b:00007f52438b0c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 50.977672] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457ec9 [ 50.984933] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 50.992194] RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 [ 50.999455] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f52438b16d4 [ 51.006718] R13: 00000000004c5160 R14: 00000000004d88c8 R15: 00000000ffffffff [ 51.014003] [ 51.015624] Allocated by task 8023: [ 51.019248] save_stack+0x43/0xd0 [ 51.022694] kasan_kmalloc+0xcb/0xd0 [ 51.026407] kasan_slab_alloc+0x12/0x20 [ 51.030376] kmem_cache_alloc+0x130/0x730 [ 51.034537] sock_alloc_inode+0x1d/0x260 [ 51.038595] alloc_inode+0x63/0x190 [ 51.042221] new_inode_pseudo+0x71/0x1a0 [ 51.046279] sock_alloc+0x41/0x270 [ 51.049830] __sock_create+0x175/0x930 [ 51.053716] sock_create_kern+0x3b/0x50 [ 51.057681] smc_create+0x17c/0x3b0 [ 51.061304] __sock_create+0x536/0x930 [ 51.065187] __sys_socket+0x106/0x260 [ 51.069002] __x64_sys_socket+0x73/0xb0 [ 51.072980] do_syscall_64+0x1b9/0x820 [ 51.076873] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.082051] [ 51.083669] Freed by task 8022: [ 51.086944] save_stack+0x43/0xd0 [ 51.090406] __kasan_slab_free+0x102/0x150 [ 51.094639] kasan_slab_free+0xe/0x10 [ 51.098432] kmem_cache_free+0x83/0x290 [ 51.102400] sock_destroy_inode+0x51/0x60 [ 51.106547] destroy_inode+0x159/0x200 [ 51.110429] evict+0x5e0/0x980 [ 51.113615] iput+0x679/0xa90 [ 51.116719] __sock_release+0x1ec/0x250 [ 51.120712] sock_release+0x17/0x20 [ 51.124334] smc_release+0x297/0x9a0 [ 51.128048] __sock_release+0xd7/0x250 [ 51.131935] sock_close+0x19/0x20 [ 51.135415] __fput+0x385/0xa50 [ 51.138701] ____fput+0x15/0x20 [ 51.142012] task_work_run+0x1e8/0x2a0 [ 51.145899] exit_to_usermode_loop+0x318/0x380 [ 51.150479] do_syscall_64+0x6be/0x820 [ 51.154364] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.159539] [ 51.161161] The buggy address belongs to the object at ffff8880958d8000 [ 51.161161] which belongs to the cache sock_inode_cache(17:syz0) of size 976 [ 51.175028] The buggy address is located 32 bytes inside of [ 51.175028] 976-byte region [ffff8880958d8000, ffff8880958d83d0) [ 51.186801] The buggy address belongs to the page: [ 51.191728] page:ffffea0002563600 count:1 mapcount:0 mapping:ffff8880a8d2b7c0 index:0xffff8880958d8ffd [ 51.201173] flags: 0x1fffc0000000200(slab) [ 51.205407] raw: 01fffc0000000200 ffffea00029a9488 ffffea00029a8108 ffff8880a8d2b7c0 [ 51.213286] raw: ffff8880958d8ffd ffff8880958d8000 0000000100000003 ffff8880a8d5a000 [ 51.221153] page dumped because: kasan: bad access detected [ 51.226850] page->mem_cgroup:ffff8880a8d5a000 [ 51.231332] [ 51.232977] Memory state around the buggy address: [ 51.237930] ffff8880958d7f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 51.245284] ffff8880958d7f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 51.252999] >ffff8880958d8000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 51.260352] ^ [ 51.264755] ffff8880958d8080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 51.272130] ffff8880958d8100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 51.279517] ================================================================== [ 51.286876] Disabling lock debugging due to kernel taint [ 51.293939] Kernel panic - not syncing: panic_on_warn set ... [ 51.299855] CPU: 0 PID: 8023 Comm: syz-executor0 Tainted: G B 4.20.0+ #396 [ 51.308157] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.317506] Call Trace: [ 51.320107] dump_stack+0x1d3/0x2c6 [ 51.323740] ? dump_stack_print_info.cold.1+0x20/0x20 [ 51.328929] ? __smc_diag_dump.isra.4+0x26c0/0x2ae0 [ 51.333944] panic+0x2ad/0x55f [ 51.337141] ? add_taint.cold.5+0x16/0x16 [ 51.341287] ? trace_hardirqs_on+0xb4/0x310 [ 51.345606] ? __smc_diag_dump.isra.4+0x2792/0x2ae0 [ 51.350618] end_report+0x47/0x4f [ 51.354070] kasan_report.cold.6+0xe/0x39 [ 51.358218] ? __smc_diag_dump.isra.4+0x2792/0x2ae0 [ 51.363230] ? __smc_diag_dump.isra.4+0x2792/0x2ae0 [ 51.368242] __asan_report_load8_noabort+0x14/0x20 [ 51.373167] __smc_diag_dump.isra.4+0x2792/0x2ae0 [ 51.378010] ? netlink_rcv_skb+0x1b5/0x430 [ 51.382247] ? sock_sendmsg+0xd5/0x120 [ 51.386141] ? smc_diag_handler_dump+0x350/0x350 [ 51.390896] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.396437] ? check_preemption_disabled+0x48/0x280 [ 51.401451] ? __lock_is_held+0xb5/0x140 [ 51.405513] ? __kmalloc_node_track_caller+0x3c/0x70 [ 51.410610] ? rcu_read_lock_sched_held+0x108/0x120 [ 51.415621] ? kasan_unpoison_shadow+0x35/0x50 [ 51.420201] ? lock_acquire+0x1ed/0x520 [ 51.424178] ? smc_diag_dump_proto.isra.5+0xf8/0x3c0 [ 51.429275] ? __kmalloc_node_track_caller+0x4d/0x70 [ 51.434806] ? lock_release+0xa00/0xa00 [ 51.438793] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.444324] ? __alloc_skb+0x4bd/0x760 [ 51.448206] ? __netlink_dump_start+0x592/0x7c0 [ 51.452872] ? kasan_check_write+0x14/0x20 [ 51.457105] smc_diag_dump_proto.isra.5+0x2e8/0x3c0 [ 51.462133] ? __smc_diag_dump.isra.4+0x2ae0/0x2ae0 [ 51.467143] ? kasan_check_write+0x14/0x20 [ 51.471393] smc_diag_dump+0x26/0x70 [ 51.475120] netlink_dump+0x600/0x1080 [ 51.479039] ? check_preemption_disabled+0x48/0x280 [ 51.484053] ? netlink_broadcast+0x50/0x50 [ 51.488285] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 51.493558] ? rcu_read_unlock_special+0x370/0x370 [ 51.498493] __netlink_dump_start+0x59a/0x7c0 [ 51.503005] smc_diag_handler_dump+0x2a3/0x350 [ 51.507583] ? smc_gid_be16_convert+0x2c0/0x2c0 [ 51.512249] ? smc_diag_dump_proto.isra.5+0x3c0/0x3c0 [ 51.517433] ? netlink_deliver_tap+0x355/0xf40 [ 51.522020] sock_diag_rcv_msg+0x31d/0x410 [ 51.526260] netlink_rcv_skb+0x16c/0x430 [ 51.530315] ? sock_diag_bind+0x80/0x80 [ 51.534282] ? netlink_ack+0xb70/0xb70 [ 51.538171] sock_diag_rcv+0x2a/0x40 [ 51.541880] netlink_unicast+0x59f/0x750 [ 51.545936] ? netlink_attachskb+0x9a0/0x9a0 [ 51.550341] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.555879] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 51.560896] netlink_sendmsg+0xa18/0xfc0 [ 51.565190] ? netlink_unicast+0x750/0x750 [ 51.569420] ? aa_sock_msg_perm.isra.14+0xba/0x160 [ 51.574343] ? apparmor_socket_sendmsg+0x29/0x30 [ 51.579108] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.584659] ? security_socket_sendmsg+0x94/0xc0 [ 51.589409] ? netlink_unicast+0x750/0x750 [ 51.593654] sock_sendmsg+0xd5/0x120 [ 51.597367] ___sys_sendmsg+0x7fd/0x930 [ 51.601344] ? find_held_lock+0x36/0x1c0 [ 51.605427] ? copy_msghdr_from_user+0x580/0x580 [ 51.610176] ? __fd_install+0x2b5/0x8f0 [ 51.614150] ? __fget_light+0x2e9/0x430 [ 51.618121] ? fget_raw+0x20/0x20 [ 51.621569] ? __might_fault+0x12b/0x1e0 [ 51.625623] ? lock_downgrade+0x900/0x900 [ 51.629768] ? lock_release+0xa00/0xa00 [ 51.633752] ? arch_local_save_flags+0x40/0x40 [ 51.638329] ? posix_ktime_get_ts+0x15/0x20 [ 51.642650] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 51.648101] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 51.653636] ? sockfd_lookup_light+0xc5/0x160 [ 51.658126] __sys_sendmsg+0x11d/0x280 [ 51.662025] ? __ia32_sys_shutdown+0x80/0x80 [ 51.666430] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 51.671962] ? put_timespec64+0x10f/0x1b0 [ 51.676120] ? do_syscall_64+0x9a/0x820 [ 51.680092] ? do_syscall_64+0x9a/0x820 [ 51.684095] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 51.689556] __x64_sys_sendmsg+0x78/0xb0 [ 51.693612] do_syscall_64+0x1b9/0x820 [ 51.697510] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 51.702873] ? syscall_return_slowpath+0x5e0/0x5e0 [ 51.707793] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.712629] ? trace_hardirqs_on_caller+0x310/0x310 [ 51.717642] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 51.722670] ? prepare_exit_to_usermode+0x291/0x3b0 [ 51.727682] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.732521] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.737699] RIP: 0033:0x457ec9 [ 51.740891] 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 [ 51.759783] RSP: 002b:00007f52438b0c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 51.767479] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457ec9 [ 51.774738] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 [ 51.782019] RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 [ 51.789283] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f52438b16d4 [ 51.796546] R13: 00000000004c5160 R14: 00000000004d88c8 R15: 00000000ffffffff [ 51.804735] Kernel Offset: disabled [ 51.808357] Rebooting in 86400 seconds..