[....] Starting file context maintaining daemon: restorecond[?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: [ 40.712417] random: sshd: uninitialized urandom read (32 bytes read) [ 41.261881] audit: type=1400 audit(1569253680.502:6): avc: denied { map } for pid=1773 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 [ 41.298350] random: sshd: uninitialized urandom read (32 bytes read) [ 41.815001] random: sshd: uninitialized urandom read (32 bytes read) [ 41.979606] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.57' (ECDSA) to the list of known hosts. [ 47.910527] random: sshd: uninitialized urandom read (32 bytes read) executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 48.003134] audit: type=1400 audit(1569253687.242:7): avc: denied { map } for pid=1791 comm="syz-executor664" path="/root/syz-executor664136074" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 48.213275] ================================================================== [ 48.220693] BUG: KASAN: stack-out-of-bounds in unwind_next_frame+0x169f/0x1810 [ 48.228054] Read of size 8 at addr ffff8881dba07720 by task syz-executor664/1835 [ 48.235593] [ 48.237224] CPU: 0 PID: 1835 Comm: syz-executor664 Not tainted 4.14.146+ #0 [ 48.244317] Call Trace: [ 48.246897] [ 48.249054] dump_stack+0xca/0x134 [ 48.252599] ? unwind_next_frame+0x169f/0x1810 [ 48.257188] ? unwind_next_frame+0x169f/0x1810 [ 48.261788] print_address_description+0x60/0x226 [ 48.266638] ? unwind_next_frame+0x169f/0x1810 [ 48.271315] ? unwind_next_frame+0x169f/0x1810 [ 48.275939] __kasan_report.cold+0x1a/0x41 [ 48.280358] ? unwind_next_frame+0x169f/0x1810 [ 48.284982] unwind_next_frame+0x169f/0x1810 [ 48.289410] ? entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 48.294878] ? deref_stack_reg+0xe0/0xe0 [ 48.298948] ? perf_event_output_forward+0x12f/0x220 [ 48.304065] ? lock_downgrade+0x5d0/0x5d0 [ 48.308412] ? entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 48.313791] perf_callchain_kernel+0x3a0/0x540 [ 48.318384] ? arch_perf_update_userpage+0x330/0x330 [ 48.323493] ? ip_rcv+0x8d7/0xf55 [ 48.326949] ? check_preemption_disabled+0x35/0x1f0 [ 48.331976] get_perf_callchain+0x2f5/0x770 [ 48.336311] ? perf_swevent_overflow+0x5a/0xf0 [ 48.340985] ? put_callchain_buffers+0x60/0x60 [ 48.345751] ? perf_swevent_put_recursion_context+0x1a/0xa0 [ 48.351828] ? perf_tp_event+0x4c1/0x7f0 [ 48.355896] ? perf_event_output_forward+0x12f/0x220 [ 48.361012] perf_callchain+0x147/0x190 [ 48.364999] perf_prepare_sample+0x6a8/0x1360 [ 48.369505] ? perf_prepare_sample+0x1360/0x1360 [ 48.374269] ? perf_output_sample+0x1700/0x1700 [ 48.378956] ? perf_event_output_forward+0x156/0x220 [ 48.384066] perf_event_output_forward+0xdc/0x220 [ 48.388914] ? perf_prepare_sample+0x1360/0x1360 [ 48.393675] ? __perf_event_overflow+0x1cc/0x340 [ 48.398431] ? perf_swevent_overflow+0x5a/0xf0 [ 48.403013] ? check_preemption_disabled+0x35/0x1f0 [ 48.408035] ? check_preemption_disabled+0x35/0x1f0 [ 48.413060] __perf_event_overflow+0x12d/0x340 [ 48.417654] perf_swevent_overflow+0x7a/0xf0 [ 48.422075] perf_swevent_event+0x19c/0x270 [ 48.426409] perf_tp_event+0x633/0x7f0 [ 48.430308] ? perf_swevent_put_recursion_context+0xa0/0xa0 [ 48.436028] ? trace_hardirqs_on+0x10/0x10 [ 48.440282] ? __is_insn_slot_addr+0x109/0x1e0 [ 48.444891] ? lock_downgrade+0x5d0/0x5d0 [ 48.449045] ? lock_acquire+0x12b/0x360 [ 48.453035] ? __free_insn_slot+0x490/0x490 [ 48.457365] ? check_preemption_disabled+0x35/0x1f0 [ 48.462392] ? __is_insn_slot_addr+0x130/0x1e0 [ 48.466977] ? kernel_text_address+0xfe/0x120 [ 48.471479] ? __kernel_text_address+0x9/0x30 [ 48.475979] ? unwind_get_return_address+0x51/0x90 [ 48.480916] ? quarantine_put+0xd6/0x180 [ 48.484981] ? trace_hardirqs_on_caller+0x25b/0x540 [ 48.490003] ? perf_trace_run_bpf_submit+0x113/0x170 [ 48.495104] ? __kasan_slab_free+0x1c5/0x210 [ 48.499558] ? check_preemption_disabled+0x35/0x1f0 [ 48.504586] perf_trace_run_bpf_submit+0x113/0x170 [ 48.509532] perf_trace_lock_acquire+0x341/0x4e0 [ 48.514299] ? lock_release+0x3de/0x740 [ 48.518288] ? HARDIRQ_verbose+0x10/0x10 [ 48.522355] ? do_syscall_64+0x3a3/0x520 [ 48.526424] ? entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 48.531800] ? trace_hardirqs_on_caller+0x25b/0x540 [ 48.536821] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 48.541930] lock_acquire+0x279/0x360 [ 48.545734] ? ip_rcv+0x8d7/0xf55 [ 48.549193] ip_rcv+0x906/0xf55 [ 48.552470] ? ip_rcv+0x8d7/0xf55 [ 48.555951] ? ip_local_deliver+0x450/0x450 [ 48.560286] ? kmem_cache_free+0x322/0x3b0 [ 48.564525] ? packet_rcv_spkt+0xd5/0x4d0 [ 48.568679] ? kfree_skbmem+0xa0/0x110 [ 48.572568] ? packet_rcv_spkt+0xd5/0x4d0 [ 48.576716] ? kfree_skb+0xeb/0x370 [ 48.580352] ? packet_rcv_spkt+0xda/0x4d0 [ 48.584499] ? ip_local_deliver+0x450/0x450 [ 48.588823] __netif_receive_skb_core+0x13ad/0x2cf0 [ 48.593848] ? trace_hardirqs_on+0x10/0x10 [ 48.598086] ? perf_trace_lock_acquire+0x2b0/0x4e0 [ 48.603026] ? flush_backlog+0x580/0x580 [ 48.607099] ? HARDIRQ_verbose+0x10/0x10 [ 48.611172] ? netif_receive_skb_internal+0x3dd/0x5f0 [ 48.616370] ? netif_receive_skb_internal+0x3dd/0x5f0 [ 48.621572] ? __netif_receive_skb+0x66/0x210 [ 48.626164] __netif_receive_skb+0x66/0x210 [ 48.630507] netif_receive_skb_internal+0x11f/0x5f0 [ 48.635543] ? dev_cpu_dead+0x810/0x810 [ 48.639522] ? dev_gro_receive+0x157/0x16d0 [ 48.643936] ? check_preemption_disabled+0x35/0x1f0 [ 48.648962] napi_gro_receive+0x206/0x410 [ 48.653290] receive_buf+0x503/0x4310 [ 48.657109] ? virtnet_xdp_xmit.isra.0+0x780/0x780 [ 48.662050] ? __lock_acquire+0x5d7/0x4320 [ 48.666299] ? vring_unmap_one+0x15/0x3e0 [ 48.670459] ? detach_buf+0x422/0x580 [ 48.674277] ? virtqueue_get_buf_ctx+0x3df/0x690 [ 48.679045] virtnet_poll+0x4e6/0x9f0 [ 48.682943] ? virtnet_restore+0x8d0/0x8d0 [ 48.687184] ? check_preemption_disabled+0x35/0x1f0 [ 48.692309] ? net_rx_action+0x213/0xcd0 [ 48.696381] net_rx_action+0x366/0xcd0 [ 48.700326] ? napi_complete_done+0x3b0/0x3b0 [ 48.704846] __do_softirq+0x234/0x9ec [ 48.708668] ? check_preemption_disabled+0x35/0x1f0 [ 48.713734] irq_exit+0x114/0x150 [ 48.717191] do_IRQ+0x104/0x1c0 [ 48.720494] common_interrupt+0x8c/0x8c [ 48.724461] [ 48.726709] RIP: 0010:lock_release+0x3de/0x740 [ 48.731289] RSP: 0018:ffff8881d0df7958 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff6e [ 48.739010] RAX: 0000000000000007 RBX: 1ffff1103a1bef2e RCX: 1ffff1103a1c7104 [ 48.746279] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000246 [ 48.753637] RBP: ffff8881d0e38000 R08: 0000000000000001 R09: 0000000000000000 [ 48.760912] R10: fffffbfff4e45b9d R11: ffffffffa722dceb R12: 0000000000000000 [ 48.768272] R13: ffff8881d0e38000 R14: 0000000000000001 R15: ffff8881d0e38828 [ 48.775569] ? mntput_no_expire+0xc7/0x810 [ 48.779820] ? lock_downgrade+0x5d0/0x5d0 [ 48.783978] ? lock_acquire+0x12b/0x360 [ 48.787959] ? mnt_get_count+0x140/0x140 [ 48.792645] ? check_preemption_disabled+0x35/0x1f0 [ 48.797681] mntput_no_expire+0xee/0x810 [ 48.801752] mntput+0x5c/0x80 [ 48.804864] free_fs_struct+0x12/0x60 [ 48.808669] exit_fs+0xdc/0x110 [ 48.811968] do_exit+0x9a8/0x2a20 [ 48.815452] ? HARDIRQ_verbose+0x10/0x10 [ 48.819653] ? mm_update_next_owner+0x610/0x610 [ 48.824332] ? get_signal+0x334/0x1cc0 [ 48.829107] ? lock_downgrade+0x5d0/0x5d0 [ 48.833262] ? lock_acquire+0x12b/0x360 [ 48.837247] ? get_signal+0x1e7/0x1cc0 [ 48.841255] do_group_exit+0x100/0x2e0 [ 48.845182] get_signal+0x39f/0x1cc0 [ 48.848904] ? check_preemption_disabled+0x35/0x1f0 [ 48.854080] do_signal+0x96/0x15d0 [ 48.857629] ? get_unused_fd_flags+0xc0/0xc0 [ 48.862047] ? SyS_perf_event_open+0x19c3/0x2560 [ 48.866817] ? wait_for_completion_io+0x10/0x10 [ 48.871497] ? mark_held_locks+0xa6/0xf0 [ 48.875634] ? setup_sigcontext+0x810/0x810 [ 48.879964] ? SyS_perf_event_open+0x633/0x2560 [ 48.884675] ? SyS_futex+0x1c5/0x2c3 [ 48.888394] ? SyS_futex+0x1cf/0x2c3 [ 48.892147] ? do_futex+0x1980/0x1980 [ 48.895953] ? exit_to_usermode_loop+0xcd/0x160 [ 48.900631] exit_to_usermode_loop+0x11d/0x160 [ 48.905230] do_syscall_64+0x3a3/0x520 [ 48.909129] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 48.914318] RIP: 0033:0x4467e9 [ 48.917510] RSP: 002b:00007fee9a6c6db8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 48.925214] RAX: fffffffffffffe00 RBX: 00000000006dbc28 RCX: 00000000004467e9 [ 48.932492] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000006dbc28 [ 48.939797] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 48.947066] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 48.954377] R13: 00007ffdaa0bd86f R14: 00007fee9a6c79c0 R15: 0000000000000000 [ 48.961695] [ 48.963316] The buggy address belongs to the page: [ 48.968249] page:ffffea00076e81c0 count:1 mapcount:0 mapping: (null) index:0x0 [ 48.976736] flags: 0x4000000000001000(reserved) [ 48.981416] raw: 4000000000001000 0000000000000000 0000000000000000 00000001ffffffff [ 48.989306] raw: ffffea00076e81e0 ffffea00076e81e0 0000000000000000 0000000000000000 [ 48.997185] page dumped because: kasan: bad access detected [ 49.002893] [ 49.004525] Memory state around the buggy address: [ 49.009540] ffff8881dba07600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 49.016905] ffff8881dba07680: 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 f1 [ 49.024272] >ffff8881dba07700: f1 04 f2 00 f3 f3 f3 00 00 00 00 00 00 00 00 00 [ 49.031636] ^ [ 49.036137] ffff8881dba07780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 49.044367] ffff8881dba07800: 00 00 00 00 00 f1 f1 f1 f1 f1 f1 00 00 00 00 00 [ 49.051723] ================================================================== [ 49.059081] Disabling lock debugging due to kernel taint [ 49.064540] Kernel panic - not syncing: panic_on_warn set ... [ 49.064540] [ 49.071903] CPU: 0 PID: 1835 Comm: syz-executor664 Tainted: G B 4.14.146+ #0 [ 49.080217] Call Trace: [ 49.082798] [ 49.084956] dump_stack+0xca/0x134 [ 49.088509] panic+0x1ea/0x3d3 [ 49.091705] ? add_taint.cold+0x16/0x16 [ 49.095717] ? lock_downgrade+0x5d0/0x5d0 [ 49.099962] ? unwind_next_frame+0x169f/0x1810 [ 49.104546] end_report+0x43/0x49 [ 49.108016] ? unwind_next_frame+0x169f/0x1810 [ 49.112768] __kasan_report.cold+0xd/0x41 [ 49.116925] ? unwind_next_frame+0x169f/0x1810 [ 49.121513] unwind_next_frame+0x169f/0x1810 [ 49.125937] ? entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 49.131330] ? deref_stack_reg+0xe0/0xe0 [ 49.135400] ? perf_event_output_forward+0x12f/0x220 [ 49.140597] ? lock_downgrade+0x5d0/0x5d0 [ 49.144766] ? entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 49.150139] perf_callchain_kernel+0x3a0/0x540 [ 49.154746] ? arch_perf_update_userpage+0x330/0x330 [ 49.159860] ? ip_rcv+0x8d7/0xf55 [ 49.163319] ? check_preemption_disabled+0x35/0x1f0 [ 49.168470] get_perf_callchain+0x2f5/0x770 [ 49.172808] ? perf_swevent_overflow+0x5a/0xf0 [ 49.177405] ? put_callchain_buffers+0x60/0x60 [ 49.181996] ? perf_swevent_put_recursion_context+0x1a/0xa0 [ 49.187826] ? perf_tp_event+0x4c1/0x7f0 [ 49.191899] ? perf_event_output_forward+0x12f/0x220 [ 49.197014] perf_callchain+0x147/0x190 [ 49.201004] perf_prepare_sample+0x6a8/0x1360 [ 49.205509] ? perf_prepare_sample+0x1360/0x1360 [ 49.210282] ? perf_output_sample+0x1700/0x1700 [ 49.214958] ? perf_event_output_forward+0x156/0x220 [ 49.220073] perf_event_output_forward+0xdc/0x220 [ 49.224926] ? perf_prepare_sample+0x1360/0x1360 [ 49.229688] ? __perf_event_overflow+0x1cc/0x340 [ 49.234448] ? perf_swevent_overflow+0x5a/0xf0 [ 49.239047] ? check_preemption_disabled+0x35/0x1f0 [ 49.244069] ? check_preemption_disabled+0x35/0x1f0 [ 49.249191] __perf_event_overflow+0x12d/0x340 [ 49.253796] perf_swevent_overflow+0x7a/0xf0 [ 49.258219] perf_swevent_event+0x19c/0x270 [ 49.262544] perf_tp_event+0x633/0x7f0 [ 49.266440] ? perf_swevent_put_recursion_context+0xa0/0xa0 [ 49.272161] ? trace_hardirqs_on+0x10/0x10 [ 49.276415] ? __is_insn_slot_addr+0x109/0x1e0 [ 49.281034] ? lock_downgrade+0x5d0/0x5d0 [ 49.285202] ? lock_acquire+0x12b/0x360 [ 49.289188] ? __free_insn_slot+0x490/0x490 [ 49.293517] ? check_preemption_disabled+0x35/0x1f0 [ 49.298540] ? __is_insn_slot_addr+0x130/0x1e0 [ 49.303126] ? kernel_text_address+0xfe/0x120 [ 49.307718] ? __kernel_text_address+0x9/0x30 [ 49.312217] ? unwind_get_return_address+0x51/0x90 [ 49.317163] ? quarantine_put+0xd6/0x180 [ 49.321226] ? trace_hardirqs_on_caller+0x25b/0x540 [ 49.326250] ? perf_trace_run_bpf_submit+0x113/0x170 [ 49.331356] ? __kasan_slab_free+0x1c5/0x210 [ 49.335765] ? check_preemption_disabled+0x35/0x1f0 [ 49.340785] perf_trace_run_bpf_submit+0x113/0x170 [ 49.345722] perf_trace_lock_acquire+0x341/0x4e0 [ 49.350594] ? lock_release+0x3de/0x740 [ 49.354580] ? HARDIRQ_verbose+0x10/0x10 [ 49.358639] ? do_syscall_64+0x3a3/0x520 [ 49.362805] ? entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 49.368173] ? trace_hardirqs_on_caller+0x25b/0x540 [ 49.373195] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 49.378312] lock_acquire+0x279/0x360 [ 49.382122] ? ip_rcv+0x8d7/0xf55 [ 49.385575] ip_rcv+0x906/0xf55 [ 49.388855] ? ip_rcv+0x8d7/0xf55 [ 49.392308] ? ip_local_deliver+0x450/0x450 [ 49.396638] ? kmem_cache_free+0x322/0x3b0 [ 49.400904] ? packet_rcv_spkt+0xd5/0x4d0 [ 49.405055] ? kfree_skbmem+0xa0/0x110 [ 49.408947] ? packet_rcv_spkt+0xd5/0x4d0 [ 49.413100] ? kfree_skb+0xeb/0x370 [ 49.416741] ? packet_rcv_spkt+0xda/0x4d0 [ 49.420894] ? ip_local_deliver+0x450/0x450 [ 49.425223] __netif_receive_skb_core+0x13ad/0x2cf0 [ 49.430253] ? trace_hardirqs_on+0x10/0x10 [ 49.434496] ? perf_trace_lock_acquire+0x2b0/0x4e0 [ 49.439608] ? flush_backlog+0x580/0x580 [ 49.443684] ? HARDIRQ_verbose+0x10/0x10 [ 49.447763] ? netif_receive_skb_internal+0x3dd/0x5f0 [ 49.453066] ? netif_receive_skb_internal+0x3dd/0x5f0 [ 49.458374] ? __netif_receive_skb+0x66/0x210 [ 49.462884] __netif_receive_skb+0x66/0x210 [ 49.467213] netif_receive_skb_internal+0x11f/0x5f0 [ 49.472321] ? dev_cpu_dead+0x810/0x810 [ 49.476396] ? dev_gro_receive+0x157/0x16d0 [ 49.480727] ? check_preemption_disabled+0x35/0x1f0 [ 49.485770] napi_gro_receive+0x206/0x410 [ 49.490049] receive_buf+0x503/0x4310 [ 49.493952] ? virtnet_xdp_xmit.isra.0+0x780/0x780 [ 49.498930] ? __lock_acquire+0x5d7/0x4320 [ 49.503176] ? vring_unmap_one+0x15/0x3e0 [ 49.507333] ? detach_buf+0x422/0x580 [ 49.511334] ? virtqueue_get_buf_ctx+0x3df/0x690 [ 49.516148] virtnet_poll+0x4e6/0x9f0 [ 49.519973] ? virtnet_restore+0x8d0/0x8d0 [ 49.524612] ? check_preemption_disabled+0x35/0x1f0 [ 49.529642] ? net_rx_action+0x213/0xcd0 [ 49.533714] net_rx_action+0x366/0xcd0 [ 49.537629] ? napi_complete_done+0x3b0/0x3b0 [ 49.542148] __do_softirq+0x234/0x9ec [ 49.545968] ? check_preemption_disabled+0x35/0x1f0 [ 49.550999] irq_exit+0x114/0x150 [ 49.554470] do_IRQ+0x104/0x1c0 [ 49.557762] common_interrupt+0x8c/0x8c [ 49.561737] [ 49.563978] RIP: 0010:lock_release+0x3de/0x740 [ 49.568572] RSP: 0018:ffff8881d0df7958 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff6e [ 49.576316] RAX: 0000000000000007 RBX: 1ffff1103a1bef2e RCX: 1ffff1103a1c7104 [ 49.583592] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000246 [ 49.590871] RBP: ffff8881d0e38000 R08: 0000000000000001 R09: 0000000000000000 [ 49.598412] R10: fffffbfff4e45b9d R11: ffffffffa722dceb R12: 0000000000000000 [ 49.605688] R13: ffff8881d0e38000 R14: 0000000000000001 R15: ffff8881d0e38828 [ 49.613017] ? mntput_no_expire+0xc7/0x810 [ 49.617278] ? lock_downgrade+0x5d0/0x5d0 [ 49.621462] ? lock_acquire+0x12b/0x360 [ 49.625458] ? mnt_get_count+0x140/0x140 [ 49.629645] ? check_preemption_disabled+0x35/0x1f0 [ 49.634790] mntput_no_expire+0xee/0x810 [ 49.638864] mntput+0x5c/0x80 [ 49.642156] free_fs_struct+0x12/0x60 [ 49.645985] exit_fs+0xdc/0x110 [ 49.649273] do_exit+0x9a8/0x2a20 [ 49.652741] ? HARDIRQ_verbose+0x10/0x10 [ 49.656853] ? mm_update_next_owner+0x610/0x610 [ 49.661618] ? get_signal+0x334/0x1cc0 [ 49.665523] ? lock_downgrade+0x5d0/0x5d0 [ 49.669696] ? lock_acquire+0x12b/0x360 [ 49.673822] ? get_signal+0x1e7/0x1cc0 [ 49.677718] do_group_exit+0x100/0x2e0 [ 49.681677] get_signal+0x39f/0x1cc0 [ 49.685449] ? check_preemption_disabled+0x35/0x1f0 [ 49.690569] do_signal+0x96/0x15d0 [ 49.694121] ? get_unused_fd_flags+0xc0/0xc0 [ 49.698541] ? SyS_perf_event_open+0x19c3/0x2560 [ 49.703309] ? wait_for_completion_io+0x10/0x10 [ 49.711553] ? mark_held_locks+0xa6/0xf0 [ 49.715629] ? setup_sigcontext+0x810/0x810 [ 49.719967] ? SyS_perf_event_open+0x633/0x2560 [ 49.724718] ? SyS_futex+0x1c5/0x2c3 [ 49.728444] ? SyS_futex+0x1cf/0x2c3 [ 49.732606] ? do_futex+0x1980/0x1980 [ 49.736425] ? exit_to_usermode_loop+0xcd/0x160 [ 49.741108] exit_to_usermode_loop+0x11d/0x160 [ 49.745707] do_syscall_64+0x3a3/0x520 [ 49.749790] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 49.754989] RIP: 0033:0x4467e9 [ 49.758177] RSP: 002b:00007fee9a6c6db8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 49.765887] RAX: fffffffffffffe00 RBX: 00000000006dbc28 RCX: 00000000004467e9 [ 49.773250] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000006dbc28 [ 49.780527] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 49.787802] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 49.795080] R13: 00007ffdaa0bd86f R14: 00007fee9a6c79c0 R15: 0000000000000000 [ 49.803387] Kernel Offset: 0x23a00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 49.814537] Rebooting in 86400 seconds..