Warning: Permanently added '10.128.0.172' (ECDSA) to the list of known hosts. 2019/10/17 12:29:38 fuzzer started 2019/10/17 12:29:40 dialing manager at 10.128.0.105:33899 2019/10/17 12:29:40 syscalls: 2524 2019/10/17 12:29:40 code coverage: enabled 2019/10/17 12:29:40 comparison tracing: enabled 2019/10/17 12:29:40 extra coverage: extra coverage is not supported by the kernel 2019/10/17 12:29:40 setuid sandbox: enabled 2019/10/17 12:29:40 namespace sandbox: enabled 2019/10/17 12:29:40 Android sandbox: /sys/fs/selinux/policy does not exist 2019/10/17 12:29:40 fault injection: enabled 2019/10/17 12:29:40 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/10/17 12:29:40 net packet injection: enabled 2019/10/17 12:29:40 net device setup: enabled 2019/10/17 12:29:40 concurrency sanitizer: enabled syzkaller login: [ 48.637869][ C1] ================================================================== [ 48.646390][ C1] BUG: KCSAN: data-race in tick_do_update_jiffies64 / tick_do_update_jiffies64 [ 48.655465][ C1] [ 48.657783][ C1] write to 0xffffffff86042008 of 8 bytes by interrupt on cpu 0: [ 48.665727][ C1] tick_do_update_jiffies64+0x105/0x260 [ 48.671418][ C1] tick_sched_do_timer+0xd4/0xe0 [ 48.676335][ C1] tick_sched_timer+0x43/0xe0 [ 48.681230][ C1] __hrtimer_run_queues+0x288/0x600 [ 48.686454][ C1] hrtimer_interrupt+0x22a/0x480 [ 48.691376][ C1] smp_apic_timer_interrupt+0xdc/0x280 [ 48.696834][ C1] apic_timer_interrupt+0xf/0x20 [ 48.701742][ C1] [ 48.704050][ C1] read to 0xffffffff86042008 of 8 bytes by interrupt on cpu 1: [ 48.711609][ C1] tick_do_update_jiffies64+0x2b/0x260 [ 48.717070][ C1] tick_sched_do_timer+0xd4/0xe0 [ 48.722007][ C1] tick_sched_timer+0x43/0xe0 [ 48.726660][ C1] __hrtimer_run_queues+0x288/0x600 [ 48.731923][ C1] hrtimer_interrupt+0x22a/0x480 [ 48.736841][ C1] smp_apic_timer_interrupt+0xdc/0x280 [ 48.742296][ C1] apic_timer_interrupt+0xf/0x20 [ 48.747246][ C1] __tsan_read4+0x1/0x30 [ 48.751476][ C1] nf_nat_ipv4_fn+0x99/0x160 [ 48.756047][ C1] nf_nat_ipv4_in+0x75/0x100 [ 48.760631][ C1] nf_hook_slow+0x83/0x160 [ 48.765039][ C1] ip_rcv+0x12f/0x1a0 [ 48.769000][ C1] __netif_receive_skb_one_core+0xa7/0xe0 [ 48.774705][ C1] [ 48.777014][ C1] Reported by Kernel Concurrency Sanitizer on: [ 48.783160][ C1] CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.4.0-rc3+ #0 [ 48.790509][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.800575][ C1] ================================================================== [ 48.808616][ C1] Kernel panic - not syncing: panic_on_warn set ... [ 48.815230][ C1] CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.4.0-rc3+ #0 [ 48.823187][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.833369][ C1] Call Trace: [ 48.836650][ C1] [ 48.839502][ C1] dump_stack+0xf5/0x159 [ 48.843831][ C1] panic+0x210/0x640 [ 48.847868][ C1] ? nf_nat_ipv4_fn+0x99/0x160 [ 48.852853][ C1] ? vprintk_func+0x8d/0x140 [ 48.857448][ C1] kcsan_report.cold+0xc/0x1b [ 48.862287][ C1] __kcsan_setup_watchpoint+0x3ee/0x510 [ 48.867825][ C1] ? __kcsan_setup_watchpoint+0x96/0x510 [ 48.873542][ C1] __tsan_read8+0x2c/0x30 [ 48.879617][ C1] tick_do_update_jiffies64+0x2b/0x260 [ 48.885081][ C1] tick_sched_do_timer+0xd4/0xe0 [ 48.890021][ C1] tick_sched_timer+0x43/0xe0 [ 48.894931][ C1] __hrtimer_run_queues+0x288/0x600 [ 48.900142][ C1] ? tick_sched_do_timer+0xe0/0xe0 [ 48.905440][ C1] hrtimer_interrupt+0x22a/0x480 [ 48.910378][ C1] smp_apic_timer_interrupt+0xdc/0x280 [ 48.916199][ C1] ? do_IRQ+0xcb/0x180 [ 48.920274][ C1] apic_timer_interrupt+0xf/0x20 [ 48.925305][ C1] [ 48.928237][ C1] RIP: 0010:__tsan_read4+0x1/0x30 [ 48.933510][ C1] Code: 00 84 c0 75 04 41 5c 5d c3 4c 89 e7 ba 01 00 00 00 be 02 00 00 00 e8 0e 03 00 00 41 5c 5d c3 66 2e 0f 1f 84 00 00 00 00 00 55 <31> d2 be 04 00 00 00 48 89 e5 41 54 49 89 fc e8 6b 01 00 00 84 c0 [ 48.953119][ C1] RSP: 0018:ffffc90000cf38f0 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 [ 48.961524][ C1] RAX: ffff88812b3a7080 RBX: ffffc90000cf3a30 RCX: ffffffff83d6b400 [ 48.969477][ C1] RDX: 0000000000000100 RSI: ffffffff83d687e8 RDI: ffffc90000cf3a30 [ 48.977426][ C1] RBP: ffffc90000cf3960 R08: ffff88812b3a7080 R09: 0000888125123a6f [ 48.985377][ C1] R10: 00000000aaaaaaab R11: ffffffff86045d30 R12: ffff888125123a00 [ 48.993440][ C1] R13: ffff888125123a00 R14: ffffc90000cf3a30 R15: ffff888126cea800 [ 49.001437][ C1] ? nf_nat_ipv4_fn+0x80/0x160 [ 49.006205][ C1] ? nf_nat_inet_fn+0x38/0x500 [ 49.011049][ C1] ? nf_nat_inet_fn+0x40/0x500 [ 49.015810][ C1] ? __kcsan_setup_watchpoint+0x96/0x510 [ 49.021456][ C1] nf_nat_ipv4_fn+0x99/0x160 [ 49.026033][ C1] nf_nat_ipv4_in+0x75/0x100 [ 49.030608][ C1] nf_hook_slow+0x83/0x160 [ 49.035004][ C1] ? nf_nat_ipv4_in.part.0+0xa0/0xa0 [ 49.040266][ C1] ip_rcv+0x12f/0x1a0 [ 49.044226][ C1] ? ip_sublist_rcv+0x5e0/0x5e0 [ 49.049074][ C1] ? ip_local_deliver+0x210/0x210 [ 49.054097][ C1] __netif_receive_skb_one_core+0xa7/0xe0 [ 49.059861][ C1] __netif_receive_skb+0x37/0xf0 [ 49.064813][ C1] netif_receive_skb_internal+0x59/0x190 [ 49.070447][ C1] napi_gro_receive+0x28f/0x330 [ 49.075287][ C1] receive_buf+0x284/0x30b0 [ 49.079779][ C1] ? __tsan_write8+0x32/0x40 [ 49.086792][ C1] ? virtqueue_get_buf_ctx+0x4fd/0x5c0 [ 49.092419][ C1] ? __kcsan_setup_watchpoint+0x96/0x510 [ 49.098052][ C1] ? __kcsan_setup_watchpoint+0x96/0x510 [ 49.103673][ C1] virtnet_poll+0x436/0x7d0 [ 49.108166][ C1] net_rx_action+0x3ae/0xa90 [ 49.112849][ C1] __do_softirq+0x115/0x33f [ 49.117347][ C1] ? takeover_tasklets+0x250/0x250 [ 49.122447][ C1] run_ksoftirqd+0x46/0x60 [ 49.126854][ C1] smpboot_thread_fn+0x37d/0x4a0 [ 49.131772][ C1] kthread+0x1d4/0x200 [ 49.135820][ C1] ? constant_test_bit.constprop.0+0x30/0x30 [ 49.141776][ C1] ? kthread_stop+0x2d0/0x2d0 [ 49.146430][ C1] ret_from_fork+0x1f/0x30 [ 49.152364][ C1] Kernel Offset: disabled [ 49.156683][ C1] Rebooting in 86400 seconds..