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 '10.128.10.31' (ECDSA) to the list of known hosts. 2018/05/03 22:08:56 parsed 1 programs 2018/05/03 22:08:56 executed programs: 0 syzkaller login: [ 1233.550441] IPVS: ftp: loaded support on port[0] = 21 [ 1233.616589] IPVS: ftp: loaded support on port[0] = 21 [ 1233.690152] IPVS: ftp: loaded support on port[0] = 21 [ 1233.804913] IPVS: ftp: loaded support on port[0] = 21 [ 1233.975770] IPVS: ftp: loaded support on port[0] = 21 [ 1234.047866] IPVS: ftp: loaded support on port[0] = 21 [ 1234.108478] IPVS: ftp: loaded support on port[0] = 21 [ 1234.209398] IPVS: ftp: loaded support on port[0] = 21 2018/05/03 22:09:01 executed programs: 277 2018/05/03 22:09:06 executed programs: 572 2018/05/03 22:09:11 executed programs: 876 2018/05/03 22:09:16 executed programs: 1183 2018/05/03 22:09:21 executed programs: 1489 2018/05/03 22:09:26 executed programs: 1795 2018/05/03 22:09:31 executed programs: 2104 2018/05/03 22:09:36 executed programs: 2407 2018/05/03 22:09:41 executed programs: 2712 2018/05/03 22:09:46 executed programs: 3011 2018/05/03 22:09:51 executed programs: 3326 2018/05/03 22:09:56 executed programs: 3630 2018/05/03 22:10:01 executed programs: 3944 2018/05/03 22:10:06 executed programs: 4252 2018/05/03 22:10:11 executed programs: 4561 2018/05/03 22:10:16 executed programs: 4864 2018/05/03 22:10:21 executed programs: 5169 2018/05/03 22:10:26 executed programs: 5466 2018/05/03 22:10:31 executed programs: 5768 2018/05/03 22:10:36 executed programs: 6058 2018/05/03 22:10:41 executed programs: 6352 2018/05/03 22:10:46 executed programs: 6647 [ 1348.899603] random: crng init done 2018/05/03 22:10:51 executed programs: 6943 2018/05/03 22:10:56 executed programs: 7236 2018/05/03 22:11:02 executed programs: 7521 2018/05/03 22:11:07 executed programs: 7811 2018/05/03 22:11:12 executed programs: 8102 2018/05/03 22:11:17 executed programs: 8392 2018/05/03 22:11:22 executed programs: 8682 2018/05/03 22:11:27 executed programs: 8975 2018/05/03 22:11:32 executed programs: 9264 2018/05/03 22:11:37 executed programs: 9553 2018/05/03 22:11:42 executed programs: 9851 2018/05/03 22:11:47 executed programs: 10142 2018/05/03 22:11:52 executed programs: 10438 2018/05/03 22:11:57 executed programs: 10726 2018/05/03 22:12:02 executed programs: 11016 2018/05/03 22:12:07 executed programs: 11303 2018/05/03 22:12:12 executed programs: 11594 [ 1430.058524] ================================================================== [ 1430.066116] BUG: KMSAN: uninit-value in update_cfs_rq_load_avg+0x1344/0x1aa0 [ 1430.073310] CPU: 0 PID: 8 Comm: rcu_sched Not tainted 4.16.0+ #87 [ 1430.079520] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1430.088853] Call Trace: [ 1430.091422] [ 1430.093595] dump_stack+0x185/0x1d0 [ 1430.097209] ? update_cfs_rq_load_avg+0x1344/0x1aa0 [ 1430.102212] kmsan_report+0x142/0x240 [ 1430.105999] __msan_warning_32+0x6c/0xb0 [ 1430.110043] update_cfs_rq_load_avg+0x1344/0x1aa0 [ 1430.114877] update_load_avg+0xde6/0x2c20 [ 1430.119015] enqueue_task_fair+0x550/0x43a0 [ 1430.123326] ? update_load_avg+0x2c20/0x2c20 [ 1430.127719] try_to_wake_up+0x13cc/0x20a0 [ 1430.131870] wake_up_process+0x34/0x40 [ 1430.135743] hrtimer_wakeup+0xac/0x100 [ 1430.139617] ? hrtimer_init_sleeper+0xc0/0xc0 [ 1430.144097] __hrtimer_run_queues+0xc03/0x15d0 [ 1430.148680] hrtimer_interrupt+0x426/0xaf0 [ 1430.153337] ? hrtimer_init+0x5b0/0x5b0 [ 1430.157295] local_apic_timer_interrupt+0x66/0x230 [ 1430.162258] smp_apic_timer_interrupt+0x5a/0x90 [ 1430.166910] apic_timer_interrupt+0xf/0x20 [ 1430.171135] [ 1430.173360] RIP: 0010:finish_lock_switch+0x38/0x50 [ 1430.178268] RSP: 0018:ffff8801d960fbb0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff12 [ 1430.185969] RAX: ffff88021f0dab00 RBX: ffff8801d9556198 RCX: ffff880000000000 [ 1430.193222] RDX: ffff88021f0dbb00 RSI: aaaaaaaaaaaab000 RDI: ffffea0000000000 [ 1430.200477] RBP: ffff8801d960fbc8 R08: 0000000001080020 R09: 0000000000000002 [ 1430.207730] R10: 0000000000000000 R11: ffff8801bb400000 R12: ffff88021fc3eb00 [ 1430.214982] R13: 0000000000000000 R14: 0000000000000000 R15: ffff88021f0dab00 [ 1430.222332] finish_task_switch+0xdb/0x230 [ 1430.226565] __schedule+0x68e/0x730 [ 1430.230180] ? schedule+0x1cc/0x2f0 [ 1430.233794] schedule+0x1cc/0x2f0 [ 1430.237233] schedule_timeout+0x3e7/0x570 [ 1430.241379] ? run_local_timers+0x100/0x100 [ 1430.245700] rcu_gp_kthread+0x21e1/0x38d0 [ 1430.249851] ? rcu_barrier_func+0x120/0x120 [ 1430.254158] kthread+0x539/0x720 [ 1430.257511] ? rcu_barrier_func+0x120/0x120 [ 1430.261830] ? kthread_blkcg+0xf0/0xf0 [ 1430.265701] ret_from_fork+0x35/0x40 [ 1430.269395] [ 1430.271003] Uninit was stored to memory at: [ 1430.275362] kmsan_internal_chain_origin+0x12b/0x210 [ 1430.280472] __msan_chain_origin+0x69/0xc0 [ 1430.284692] enqueue_task_fair+0x15b1/0x43a0 [ 1430.289084] try_to_wake_up+0x13cc/0x20a0 [ 1430.293216] wake_up_process+0x34/0x40 [ 1430.297088] swake_up+0xfb/0x3b0 [ 1430.300455] rcu_report_qs_rnp+0x767/0x880 [ 1430.304673] rcu_process_callbacks+0x7b0/0x2070 [ 1430.309324] __do_softirq+0x56d/0x93d [ 1430.313100] Uninit was stored to memory at: [ 1430.317402] kmsan_internal_chain_origin+0x12b/0x210 [ 1430.322487] __msan_chain_origin+0x69/0xc0 [ 1430.326709] reweight_entity+0x1607/0x1a30 [ 1430.330924] task_tick_fair+0x5f1/0x1040 [ 1430.334978] scheduler_tick+0x28b/0x490 [ 1430.338935] update_process_times+0x157/0x1a0 [ 1430.343425] tick_sched_timer+0x33b/0x4b0 [ 1430.347574] __hrtimer_run_queues+0xc03/0x15d0 [ 1430.352138] hrtimer_interrupt+0x426/0xaf0 [ 1430.356357] local_apic_timer_interrupt+0x66/0x230 [ 1430.361284] smp_apic_timer_interrupt+0x5a/0x90 [ 1430.365930] Uninit was stored to memory at: [ 1430.370235] kmsan_internal_chain_origin+0x12b/0x210 [ 1430.375319] __msan_chain_origin+0x69/0xc0 [ 1430.379536] reweight_entity+0x126b/0x1a30 [ 1430.383760] task_tick_fair+0x5f1/0x1040 [ 1430.387815] scheduler_tick+0x28b/0x490 [ 1430.391772] update_process_times+0x157/0x1a0 [ 1430.396264] tick_sched_timer+0x33b/0x4b0 [ 1430.400397] __hrtimer_run_queues+0xc03/0x15d0 [ 1430.404963] hrtimer_interrupt+0x426/0xaf0 [ 1430.409183] local_apic_timer_interrupt+0x66/0x230 [ 1430.414094] smp_apic_timer_interrupt+0x5a/0x90 [ 1430.418753] Local variable description: ----flags.i.i.i.i@_raw_spin_lock_irqsave [ 1430.426275] Variable was created at: [ 1430.429970] _raw_spin_lock_irqsave+0x45/0xf0 [ 1430.434450] hrtimer_interrupt+0x101/0xaf0 [ 1430.438673] ================================================================== [ 1430.446019] Disabling lock debugging due to kernel taint [ 1430.451452] Kernel panic - not syncing: panic_on_warn set ... [ 1430.451452] [ 1430.458814] CPU: 0 PID: 8 Comm: rcu_sched Tainted: G B 4.16.0+ #87 [ 1430.466325] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1430.475661] Call Trace: [ 1430.478226] [ 1430.480362] dump_stack+0x185/0x1d0 [ 1430.483974] panic+0x39d/0x940 [ 1430.487167] ? update_cfs_rq_load_avg+0x1344/0x1aa0 [ 1430.492176] kmsan_report+0x238/0x240 [ 1430.495969] __msan_warning_32+0x6c/0xb0 [ 1430.500016] update_cfs_rq_load_avg+0x1344/0x1aa0 [ 1430.504859] update_load_avg+0xde6/0x2c20 [ 1430.509009] enqueue_task_fair+0x550/0x43a0 [ 1430.513320] ? update_load_avg+0x2c20/0x2c20 [ 1430.517724] try_to_wake_up+0x13cc/0x20a0 [ 1430.521860] wake_up_process+0x34/0x40 [ 1430.525732] hrtimer_wakeup+0xac/0x100 [ 1430.529613] ? hrtimer_init_sleeper+0xc0/0xc0 [ 1430.534095] __hrtimer_run_queues+0xc03/0x15d0 [ 1430.538755] hrtimer_interrupt+0x426/0xaf0 [ 1430.542980] ? hrtimer_init+0x5b0/0x5b0 [ 1430.547115] local_apic_timer_interrupt+0x66/0x230 [ 1430.552057] smp_apic_timer_interrupt+0x5a/0x90 [ 1430.556723] apic_timer_interrupt+0xf/0x20 [ 1430.560934] [ 1430.563155] RIP: 0010:finish_lock_switch+0x38/0x50 [ 1430.568064] RSP: 0018:ffff8801d960fbb0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff12 [ 1430.575755] RAX: ffff88021f0dab00 RBX: ffff8801d9556198 RCX: ffff880000000000 [ 1430.583007] RDX: ffff88021f0dbb00 RSI: aaaaaaaaaaaab000 RDI: ffffea0000000000 [ 1430.590259] RBP: ffff8801d960fbc8 R08: 0000000001080020 R09: 0000000000000002 [ 1430.597513] R10: 0000000000000000 R11: ffff8801bb400000 R12: ffff88021fc3eb00 [ 1430.604765] R13: 0000000000000000 R14: 0000000000000000 R15: ffff88021f0dab00 [ 1430.612039] finish_task_switch+0xdb/0x230 [ 1430.616269] __schedule+0x68e/0x730 [ 1430.619883] ? schedule+0x1cc/0x2f0 [ 1430.623505] schedule+0x1cc/0x2f0 [ 1430.626946] schedule_timeout+0x3e7/0x570 [ 1430.631090] ? run_local_timers+0x100/0x100 [ 1430.635401] rcu_gp_kthread+0x21e1/0x38d0 [ 1430.639542] ? rcu_barrier_func+0x120/0x120 [ 1430.643849] kthread+0x539/0x720 [ 1430.647199] ? rcu_barrier_func+0x120/0x120 [ 1430.651510] ? kthread_blkcg+0xf0/0xf0 [ 1430.655382] ret_from_fork+0x35/0x40 [ 1431.774298] Shutting down cpus with NMI [ 1431.790048] Dumping ftrace buffer: [ 1431.793588] (ftrace buffer empty) [ 1431.797289] Kernel Offset: disabled [ 1431.800903] Rebooting in 86400 seconds..