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 '10.128.0.15' (ECDSA) to the list of known hosts. 2018/04/14 13:12:10 parsed 1 programs 2018/04/14 13:12:10 executed programs: 0 2018/04/14 13:12:15 executed programs: 149 2018/04/14 13:12:20 executed programs: 283 2018/04/14 13:12:25 executed programs: 417 2018/04/14 13:12:30 executed programs: 550 2018/04/14 13:12:35 executed programs: 689 2018/04/14 13:12:40 executed programs: 822 2018/04/14 13:12:45 executed programs: 958 2018/04/14 13:12:50 executed programs: 1092 2018/04/14 13:12:55 executed programs: 1228 2018/04/14 13:13:00 executed programs: 1364 2018/04/14 13:13:05 executed programs: 1500 2018/04/14 13:13:10 executed programs: 1633 2018/04/14 13:13:15 executed programs: 1768 2018/04/14 13:13:20 executed programs: 1902 2018/04/14 13:13:25 executed programs: 2037 2018/04/14 13:13:30 executed programs: 2172 2018/04/14 13:13:35 executed programs: 2306 2018/04/14 13:13:40 executed programs: 2442 2018/04/14 13:13:45 executed programs: 2577 2018/04/14 13:13:51 executed programs: 2714 2018/04/14 13:13:56 executed programs: 2851 2018/04/14 13:14:01 executed programs: 2986 2018/04/14 13:14:06 executed programs: 3121 2018/04/14 13:14:11 executed programs: 3253 2018/04/14 13:14:16 executed programs: 3391 2018/04/14 13:14:21 executed programs: 3526 2018/04/14 13:14:26 executed programs: 3659 2018/04/14 13:14:31 executed programs: 3796 2018/04/14 13:14:36 executed programs: 3933 2018/04/14 13:14:41 executed programs: 4070 2018/04/14 13:14:46 executed programs: 4205 2018/04/14 13:14:51 executed programs: 4340 2018/04/14 13:14:56 executed programs: 4474 2018/04/14 13:15:01 executed programs: 4610 2018/04/14 13:15:06 executed programs: 4743 2018/04/14 13:15:11 executed programs: 4878 2018/04/14 13:15:16 executed programs: 5012 2018/04/14 13:15:21 executed programs: 5146 2018/04/14 13:15:26 executed programs: 5279 2018/04/14 13:15:31 executed programs: 5413 2018/04/14 13:15:36 executed programs: 5543 syzkaller login: [ 1066.721232] random: crng init done 2018/04/14 13:15:41 executed programs: 5678 2018/04/14 13:15:46 executed programs: 5811 2018/04/14 13:15:51 executed programs: 5946 2018/04/14 13:15:56 executed programs: 6081 2018/04/14 13:16:01 executed programs: 6217 2018/04/14 13:16:06 executed programs: 6350 2018/04/14 13:16:12 executed programs: 6485 2018/04/14 13:16:17 executed programs: 6619 2018/04/14 13:16:22 executed programs: 6754 2018/04/14 13:16:27 executed programs: 6885 2018/04/14 13:16:32 executed programs: 7017 2018/04/14 13:16:37 executed programs: 7150 2018/04/14 13:16:42 executed programs: 7282 2018/04/14 13:16:47 executed programs: 7416 2018/04/14 13:16:52 executed programs: 7550 2018/04/14 13:16:57 executed programs: 7683 2018/04/14 13:17:02 executed programs: 7818 2018/04/14 13:17:07 executed programs: 7952 2018/04/14 13:17:12 executed programs: 8083 2018/04/14 13:17:17 executed programs: 8217 [ 1170.714927] ================================================================== [ 1170.722489] BUG: KMSAN: uninit-value in update_cfs_rq_load_avg+0x1344/0x1aa0 [ 1170.729725] CPU: 0 PID: 3603 Comm: syz-executor4 Not tainted 4.16.0+ #83 [ 1170.736557] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1170.745898] Call Trace: [ 1170.748529] dump_stack+0x185/0x1d0 [ 1170.752142] ? update_cfs_rq_load_avg+0x1344/0x1aa0 [ 1170.757179] kmsan_report+0x142/0x240 [ 1170.760963] __msan_warning_32+0x6c/0xb0 [ 1170.765004] update_cfs_rq_load_avg+0x1344/0x1aa0 [ 1170.769833] update_load_avg+0xde6/0x2c20 [ 1170.773978] dequeue_task_fair+0x2988/0x2ea0 [ 1170.778371] ? enqueue_task_fair+0x43a0/0x43a0 [ 1170.782961] deactivate_task+0x50d/0x780 [ 1170.787023] __schedule+0x164/0x730 [ 1170.790628] ? schedule+0x1cc/0x2f0 [ 1170.794236] schedule+0x1cc/0x2f0 [ 1170.797669] do_nanosleep+0x2c3/0x9b0 [ 1170.801480] SYSC_nanosleep+0x420/0x6a0 [ 1170.805439] ? hrtimer_init_sleeper+0xc0/0xc0 [ 1170.809917] SyS_nanosleep+0x46/0x70 [ 1170.813624] do_syscall_64+0x309/0x430 [ 1170.817496] ? hrtimer_nanosleep+0x560/0x560 [ 1170.821887] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 1170.827054] RIP: 0033:0x480a20 [ 1170.830225] RSP: 002b:0000000000a3ea98 EFLAGS: 00000246 ORIG_RAX: 0000000000000023 [ 1170.837948] RAX: ffffffffffffffda RBX: 0000000000000407 RCX: 0000000000480a20 [ 1170.845196] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000a3eaa0 [ 1170.852446] RBP: 000000000011dcbd R08: 0000000000000001 R09: 0000000000d6e940 [ 1170.859696] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 1170.866944] R13: 0000000000000008 R14: 0000000000000ff1 R15: 000000000011dc7d [ 1170.874195] [ 1170.875800] Uninit was stored to memory at: [ 1170.880103] kmsan_internal_chain_origin+0x12b/0x210 [ 1170.885184] __msan_chain_origin+0x69/0xc0 [ 1170.889400] reweight_entity+0x1607/0x1a30 [ 1170.893612] enqueue_task_fair+0x40ea/0x43a0 [ 1170.897999] try_to_wake_up+0x13cc/0x20a0 [ 1170.902125] wake_up_process+0x34/0x40 [ 1170.905989] hrtimer_wakeup+0xac/0x100 [ 1170.909856] __hrtimer_run_queues+0xc03/0x15d0 [ 1170.914416] hrtimer_interrupt+0x426/0xaf0 [ 1170.918659] local_apic_timer_interrupt+0x66/0x230 [ 1170.923569] smp_apic_timer_interrupt+0x5a/0x90 [ 1170.928217] Uninit was stored to memory at: [ 1170.932518] kmsan_internal_chain_origin+0x12b/0x210 [ 1170.937599] __msan_chain_origin+0x69/0xc0 [ 1170.941815] reweight_entity+0x126b/0x1a30 [ 1170.946028] enqueue_task_fair+0x40ea/0x43a0 [ 1170.950418] try_to_wake_up+0x13cc/0x20a0 [ 1170.954542] wake_up_process+0x34/0x40 [ 1170.958405] hrtimer_wakeup+0xac/0x100 [ 1170.962270] __hrtimer_run_queues+0xc03/0x15d0 [ 1170.966829] hrtimer_interrupt+0x426/0xaf0 [ 1170.971045] local_apic_timer_interrupt+0x66/0x230 [ 1170.975955] smp_apic_timer_interrupt+0x5a/0x90 [ 1170.980598] Local variable description: ----tlb.i@ldt_arch_exit_mmap [ 1170.987063] Variable was created at: [ 1170.990792] ldt_arch_exit_mmap+0x46/0x160 [ 1170.995024] exit_mmap+0x30f/0x950 [ 1170.998536] ================================================================== [ 1171.005868] Disabling lock debugging due to kernel taint [ 1171.011293] Kernel panic - not syncing: panic_on_warn set ... [ 1171.011293] [ 1171.018636] CPU: 0 PID: 3603 Comm: syz-executor4 Tainted: G B 4.16.0+ #83 [ 1171.026751] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1171.036083] Call Trace: [ 1171.038651] dump_stack+0x185/0x1d0 [ 1171.042291] panic+0x39d/0x940 [ 1171.045480] ? update_cfs_rq_load_avg+0x1344/0x1aa0 [ 1171.050485] kmsan_report+0x238/0x240 [ 1171.054266] __msan_warning_32+0x6c/0xb0 [ 1171.058309] update_cfs_rq_load_avg+0x1344/0x1aa0 [ 1171.063137] update_load_avg+0xde6/0x2c20 [ 1171.067275] dequeue_task_fair+0x2988/0x2ea0 [ 1171.071669] ? enqueue_task_fair+0x43a0/0x43a0 [ 1171.076230] deactivate_task+0x50d/0x780 [ 1171.080276] __schedule+0x164/0x730 [ 1171.084235] ? schedule+0x1cc/0x2f0 [ 1171.087930] schedule+0x1cc/0x2f0 [ 1171.091363] do_nanosleep+0x2c3/0x9b0 [ 1171.095149] SYSC_nanosleep+0x420/0x6a0 [ 1171.099103] ? hrtimer_init_sleeper+0xc0/0xc0 [ 1171.103579] SyS_nanosleep+0x46/0x70 [ 1171.107273] do_syscall_64+0x309/0x430 [ 1171.111140] ? hrtimer_nanosleep+0x560/0x560 [ 1171.115531] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 1171.120697] RIP: 0033:0x480a20 [ 1171.123864] RSP: 002b:0000000000a3ea98 EFLAGS: 00000246 ORIG_RAX: 0000000000000023 [ 1171.131552] RAX: ffffffffffffffda RBX: 0000000000000407 RCX: 0000000000480a20 [ 1171.138802] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000a3eaa0 [ 1171.146049] RBP: 000000000011dcbd R08: 0000000000000001 R09: 0000000000d6e940 [ 1171.153298] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 1171.160546] R13: 0000000000000008 R14: 0000000000000ff1 R15: 000000000011dc7d [ 1172.283228] Shutting down cpus with NMI [ 1172.298834] Dumping ftrace buffer: [ 1172.302351] (ftrace buffer empty) [ 1172.306040] Kernel Offset: disabled [ 1172.309689] Rebooting in 86400 seconds..