Warning: Permanently added '10.128.0.2' (ECDSA) to the list of known hosts. 2018/04/10 14:13:40 parsed 1 programs 2018/04/10 14:13:40 executed programs: 0 syzkaller login: [ 30.003599] IPVS: ftp: loaded support on port[0] = 21 [ 30.011921] IPVS: ftp: loaded support on port[0] = 21 [ 30.033379] IPVS: ftp: loaded support on port[0] = 21 [ 30.048525] IPVS: ftp: loaded support on port[0] = 21 [ 30.049692] IPVS: ftp: loaded support on port[0] = 21 [ 30.071534] IPVS: ftp: loaded support on port[0] = 21 [ 30.074077] IPVS: ftp: loaded support on port[0] = 21 [ 30.109086] IPVS: ftp: loaded support on port[0] = 21 [ 31.320167] ================================================================== [ 31.327676] BUG: KASAN: alloca-out-of-bounds in tick_sched_handle+0x16d/0x180 [ 31.334955] Read of size 8 at addr ffff8801b0e4f1a0 by task ip/4735 [ 31.341341] [ 31.342959] CPU: 0 PID: 4735 Comm: ip Not tainted 4.16.0+ #17 [ 31.348822] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.358153] Call Trace: [ 31.360713] [ 31.362854] dump_stack+0x1b9/0x294 [ 31.366467] ? dump_stack_print_info.cold.2+0x52/0x52 [ 31.371645] ? printk+0x9e/0xba [ 31.374909] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 31.379648] ? kasan_check_write+0x14/0x20 [ 31.383867] print_address_description+0x6c/0x20b [ 31.388705] ? tick_sched_handle+0x16d/0x180 [ 31.393105] kasan_report.cold.7+0xac/0x2f5 [ 31.397413] __asan_report_load8_noabort+0x14/0x20 [ 31.402325] tick_sched_handle+0x16d/0x180 [ 31.406543] tick_sched_timer+0x42/0x130 [ 31.410589] __hrtimer_run_queues+0x3e3/0x10a0 [ 31.415156] ? tick_sched_do_timer+0x100/0x100 [ 31.419721] ? hrtimer_start_range_ns+0xd10/0xd10 [ 31.424550] ? pvclock_read_flags+0x160/0x160 [ 31.429029] ? __local_bh_enable+0xef/0x130 [ 31.433347] ? kvm_clock_read+0x25/0x30 [ 31.437307] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 31.442305] ? ktime_get_update_offsets_now+0x3a6/0x570 [ 31.447653] ? do_timer+0x50/0x50 [ 31.451090] ? rcu_nmi_exit+0xd7/0x2b0 [ 31.454967] ? do_raw_spin_lock+0xc1/0x200 [ 31.459191] hrtimer_interrupt+0x286/0x650 [ 31.463416] smp_apic_timer_interrupt+0x15d/0x710 [ 31.468241] ? smp_call_function_single_interrupt+0x650/0x650 [ 31.474109] ? _raw_spin_lock+0x32/0x40 [ 31.478068] ? _raw_spin_unlock+0x22/0x30 [ 31.482199] ? handle_edge_irq+0x330/0x870 [ 31.486417] ? task_prio+0x50/0x50 [ 31.489945] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 31.494773] apic_timer_interrupt+0xf/0x20 [ 31.498986] [ 31.501208] RIP: 0010:rtnl_newlink+0x108c/0x1a40 [ 31.505941] RSP: 0018:ffff8801b0e4f1c8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 31.513631] RAX: ffff8801b1a7c380 RBX: 0000000000000000 RCX: 0000000000000000 [ 31.520880] RDX: 0000000000000000 RSI: ffffffff85c54fbe RDI: ffff8801b0e4f160 [ 31.528139] RBP: ffff8801b0e4f5f8 R08: ffff8801b1a7c380 R09: 0000000000000000 [ 31.535389] R10: ffffed00361c9d20 R11: 0000000000000003 R12: ffff8801b0e4f5d0 [ 31.542640] R13: 0000000000000005 R14: 0000000000000000 R15: 0000000000000000 [ 31.549904] ? rtnl_newlink+0x107e/0x1a40 [ 31.554036] ? rtnl_newlink+0x4e7/0x1a40 [ 31.558087] ? rtnl_link_unregister+0x370/0x370 [ 31.562740] ? kasan_check_read+0x11/0x20 [ 31.566872] ? rcu_is_watching+0x85/0x140 [ 31.571008] ? __lock_acquire+0x7f5/0x5130 [ 31.575240] ? graph_lock+0x170/0x170 [ 31.579051] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.584573] ? rtnl_get_link+0x164/0x350 [ 31.588615] ? rtnl_dump_all+0x5e0/0x5e0 [ 31.592658] ? rcu_is_watching+0x85/0x140 [ 31.596788] ? rcu_bh_force_quiescent_state+0x20/0x20 [ 31.601964] ? __netlink_ns_capable+0x100/0x130 [ 31.606621] ? rtnl_link_unregister+0x370/0x370 [ 31.611270] rtnetlink_rcv_msg+0x466/0xc10 [ 31.615492] ? rtnetlink_put_metrics+0x690/0x690 [ 31.620236] netlink_rcv_skb+0x172/0x440 [ 31.624282] ? rtnetlink_put_metrics+0x690/0x690 [ 31.629039] ? netlink_ack+0xbc0/0xbc0 [ 31.632914] ? rcu_bh_force_quiescent_state+0x20/0x20 [ 31.638086] ? netlink_skb_destructor+0x210/0x210 [ 31.642916] rtnetlink_rcv+0x1c/0x20 [ 31.646612] netlink_unicast+0x58b/0x740 [ 31.650659] ? netlink_attachskb+0x970/0x970 [ 31.655053] ? import_iovec+0x24b/0x420 [ 31.659015] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 31.664020] ? security_netlink_send+0x88/0xb0 [ 31.668589] netlink_sendmsg+0x9f0/0xfa0 [ 31.672636] ? netlink_unicast+0x740/0x740 [ 31.676940] ? security_socket_sendmsg+0x94/0xc0 [ 31.681675] ? netlink_unicast+0x740/0x740 [ 31.685892] sock_sendmsg+0xd5/0x120 [ 31.689588] ___sys_sendmsg+0x805/0x940 [ 31.693550] ? copy_msghdr_from_user+0x560/0x560 [ 31.698292] ? vm_insert_mixed_mkwrite+0x40/0x40 [ 31.703728] ? graph_lock+0x170/0x170 [ 31.707516] ? graph_lock+0x170/0x170 [ 31.711297] ? find_held_lock+0x36/0x1c0 [ 31.715342] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.720860] ? __fget_light+0x2ef/0x430 [ 31.724816] ? fget_raw+0x20/0x20 [ 31.728251] ? find_held_lock+0x36/0x1c0 [ 31.732298] ? lock_downgrade+0x8e0/0x8e0 [ 31.736427] ? handle_mm_fault+0x8c0/0xc70 [ 31.740646] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.746164] ? sockfd_lookup_light+0xc5/0x160 [ 31.750644] __sys_sendmsg+0x115/0x270 [ 31.754514] ? SyS_shutdown+0x30/0x30 [ 31.758304] ? __do_page_fault+0x441/0xe40 [ 31.762531] ? syscall_slow_exit_work+0x4f0/0x4f0 [ 31.767362] SyS_sendmsg+0x29/0x30 [ 31.770895] ? __sys_sendmsg+0x270/0x270 [ 31.774937] do_syscall_64+0x29e/0x9d0 [ 31.778807] ? vmalloc_sync_all+0x30/0x30 [ 31.782936] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 31.787676] ? syscall_return_slowpath+0x5c0/0x5c0 [ 31.792592] ? syscall_return_slowpath+0x30f/0x5c0 [ 31.797505] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.803026] ? retint_user+0x18/0x18 [ 31.806726] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 31.811557] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 31.816727] RIP: 0033:0x7fa87f852320 [ 31.820417] RSP: 002b:00007ffc173eba38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 31.828108] RAX: ffffffffffffffda RBX: 00007ffc173efb30 RCX: 00007fa87f852320 [ 31.835361] RDX: 0000000000000000 RSI: 00007ffc173eba70 RDI: 0000000000000003 [ 31.842615] RBP: 00007ffc173eba70 R08: 0000000000000000 R09: 0000000000000003 [ 31.849864] R10: 0000000000000000 R11: 0000000000000246 R12: 000000005accc697 [ 31.857115] R13: 0000000000000000 R14: 00000000006395c0 R15: 00007ffc173f0308 [ 31.864372] [ 31.865982] The buggy address belongs to the page: [ 31.870894] page:ffffea0006c393c0 count:0 mapcount:0 mapping:0000000000000000 index:0x0 [ 31.879020] flags: 0x2fffc0000000000() [ 31.882896] raw: 02fffc0000000000 0000000000000000 0000000000000000 00000000ffffffff [ 31.890758] raw: 0000000000000000 ffffea0006c30101 0000000000000000 0000000000000000 [ 31.898615] page dumped because: kasan: bad access detected [ 31.904301] [ 31.905905] Memory state around the buggy address: [ 31.910813] ffff8801b0e4f080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 31.918152] ffff8801b0e4f100: 00 00 00 00 00 00 00 00 00 00 00 00 ca ca ca ca [ 31.925490] >ffff8801b0e4f180: 00 cb cb cb cb cb cb cb 00 00 00 00 00 00 00 00 [ 31.932826] ^ [ 31.937214] ffff8801b0e4f200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 [ 31.944554] ffff8801b0e4f280: f1 f1 00 f2 f2 f2 f2 f2 f2 f2 00 00 f2 f2 f2 f2 [ 31.951890] ================================================================== [ 31.959226] Disabling lock debugging due to kernel taint [ 31.964651] Kernel panic - not syncing: panic_on_warn set ... [ 31.964651] [ 31.971993] CPU: 0 PID: 4735 Comm: ip Tainted: G B 4.16.0+ #17 [ 31.979154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.988483] Call Trace: [ 31.991043] [ 31.993178] dump_stack+0x1b9/0x294 [ 31.996784] ? dump_stack_print_info.cold.2+0x52/0x52 [ 32.001952] ? lock_downgrade+0x8e0/0x8e0 [ 32.006077] ? vprintk_default+0x28/0x30 [ 32.010122] ? tick_sched_handle+0x80/0x180 [ 32.014421] panic+0x22f/0x4de [ 32.017596] ? add_taint.cold.5+0x16/0x16 [ 32.021725] ? add_taint.cold.5+0x5/0x16 [ 32.025767] ? do_raw_spin_unlock+0x9e/0x2e0 [ 32.030157] ? tick_sched_handle+0x16d/0x180 [ 32.034545] kasan_end_report+0x47/0x4f [ 32.038500] kasan_report.cold.7+0xc9/0x2f5 [ 32.042801] __asan_report_load8_noabort+0x14/0x20 [ 32.047710] tick_sched_handle+0x16d/0x180 [ 32.051936] tick_sched_timer+0x42/0x130 [ 32.055977] __hrtimer_run_queues+0x3e3/0x10a0 [ 32.060540] ? tick_sched_do_timer+0x100/0x100 [ 32.065103] ? hrtimer_start_range_ns+0xd10/0xd10 [ 32.069931] ? pvclock_read_flags+0x160/0x160 [ 32.074407] ? __local_bh_enable+0xef/0x130 [ 32.078724] ? kvm_clock_read+0x25/0x30 [ 32.082693] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 32.087690] ? ktime_get_update_offsets_now+0x3a6/0x570 [ 32.093033] ? do_timer+0x50/0x50 [ 32.096466] ? rcu_nmi_exit+0xd7/0x2b0 [ 32.100336] ? do_raw_spin_lock+0xc1/0x200 [ 32.104555] hrtimer_interrupt+0x286/0x650 [ 32.108778] smp_apic_timer_interrupt+0x15d/0x710 [ 32.113600] ? smp_call_function_single_interrupt+0x650/0x650 [ 32.119465] ? _raw_spin_lock+0x32/0x40 [ 32.123432] ? _raw_spin_unlock+0x22/0x30 [ 32.127561] ? handle_edge_irq+0x330/0x870 [ 32.131778] ? task_prio+0x50/0x50 [ 32.135301] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 32.140124] apic_timer_interrupt+0xf/0x20 [ 32.144333] [ 32.146552] RIP: 0010:rtnl_newlink+0x108c/0x1a40 [ 32.151284] RSP: 0018:ffff8801b0e4f1c8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 32.158974] RAX: ffff8801b1a7c380 RBX: 0000000000000000 RCX: 0000000000000000 [ 32.166231] RDX: 0000000000000000 RSI: ffffffff85c54fbe RDI: ffff8801b0e4f160 [ 32.173483] RBP: ffff8801b0e4f5f8 R08: ffff8801b1a7c380 R09: 0000000000000000 [ 32.180733] R10: ffffed00361c9d20 R11: 0000000000000003 R12: ffff8801b0e4f5d0 [ 32.187981] R13: 0000000000000005 R14: 0000000000000000 R15: 0000000000000000 [ 32.195235] ? rtnl_newlink+0x107e/0x1a40 [ 32.199364] ? rtnl_newlink+0x4e7/0x1a40 [ 32.203407] ? rtnl_link_unregister+0x370/0x370 [ 32.208058] ? kasan_check_read+0x11/0x20 [ 32.212184] ? rcu_is_watching+0x85/0x140 [ 32.216314] ? __lock_acquire+0x7f5/0x5130 [ 32.220529] ? graph_lock+0x170/0x170 [ 32.224321] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 32.229836] ? rtnl_get_link+0x164/0x350 [ 32.233874] ? rtnl_dump_all+0x5e0/0x5e0 [ 32.237912] ? rcu_is_watching+0x85/0x140 [ 32.242041] ? rcu_bh_force_quiescent_state+0x20/0x20 [ 32.247213] ? __netlink_ns_capable+0x100/0x130 [ 32.251862] ? rtnl_link_unregister+0x370/0x370 [ 32.256510] rtnetlink_rcv_msg+0x466/0xc10 [ 32.260726] ? rtnetlink_put_metrics+0x690/0x690 [ 32.265549] netlink_rcv_skb+0x172/0x440 [ 32.269590] ? rtnetlink_put_metrics+0x690/0x690 [ 32.274326] ? netlink_ack+0xbc0/0xbc0 [ 32.278191] ? rcu_bh_force_quiescent_state+0x20/0x20 [ 32.283359] ? netlink_skb_destructor+0x210/0x210 [ 32.288182] rtnetlink_rcv+0x1c/0x20 [ 32.291875] netlink_unicast+0x58b/0x740 [ 32.296353] ? netlink_attachskb+0x970/0x970 [ 32.300743] ? import_iovec+0x24b/0x420 [ 32.304700] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 32.309697] ? security_netlink_send+0x88/0xb0 [ 32.314258] netlink_sendmsg+0x9f0/0xfa0 [ 32.318301] ? netlink_unicast+0x740/0x740 [ 32.322517] ? security_socket_sendmsg+0x94/0xc0 [ 32.327254] ? netlink_unicast+0x740/0x740 [ 32.331469] sock_sendmsg+0xd5/0x120 [ 32.335164] ___sys_sendmsg+0x805/0x940 [ 32.339119] ? copy_msghdr_from_user+0x560/0x560 [ 32.343854] ? vm_insert_mixed_mkwrite+0x40/0x40 [ 32.348589] ? graph_lock+0x170/0x170 [ 32.352372] ? graph_lock+0x170/0x170 [ 32.356149] ? find_held_lock+0x36/0x1c0 [ 32.360192] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 32.365710] ? __fget_light+0x2ef/0x430 [ 32.369664] ? fget_raw+0x20/0x20 [ 32.373096] ? find_held_lock+0x36/0x1c0 [ 32.377140] ? lock_downgrade+0x8e0/0x8e0 [ 32.381270] ? handle_mm_fault+0x8c0/0xc70 [ 32.385581] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 32.391098] ? sockfd_lookup_light+0xc5/0x160 [ 32.395573] __sys_sendmsg+0x115/0x270 [ 32.399440] ? SyS_shutdown+0x30/0x30 [ 32.403222] ? __do_page_fault+0x441/0xe40 [ 32.407442] ? syscall_slow_exit_work+0x4f0/0x4f0 [ 32.412269] SyS_sendmsg+0x29/0x30 [ 32.415787] ? __sys_sendmsg+0x270/0x270 [ 32.419826] do_syscall_64+0x29e/0x9d0 [ 32.423692] ? vmalloc_sync_all+0x30/0x30 [ 32.427818] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 32.432556] ? syscall_return_slowpath+0x5c0/0x5c0 [ 32.437465] ? syscall_return_slowpath+0x30f/0x5c0 [ 32.442378] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 32.447896] ? retint_user+0x18/0x18 [ 32.451596] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 32.456423] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 32.461590] RIP: 0033:0x7fa87f852320 [ 32.465279] RSP: 002b:00007ffc173eba38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 32.472966] RAX: ffffffffffffffda RBX: 00007ffc173efb30 RCX: 00007fa87f852320 [ 32.480212] RDX: 0000000000000000 RSI: 00007ffc173eba70 RDI: 0000000000000003 [ 32.487462] RBP: 00007ffc173eba70 R08: 0000000000000000 R09: 0000000000000003 [ 32.494714] R10: 0000000000000000 R11: 0000000000000246 R12: 000000005accc697 [ 32.501971] R13: 0000000000000000 R14: 00000000006395c0 R15: 00007ffc173f0308 [ 32.509651] Dumping ftrace buffer: [ 32.513164] (ftrace buffer empty) [ 32.516850] Kernel Offset: disabled [ 32.520460] Rebooting in 86400 seconds..