Warning: Permanently added '10.128.0.200' (ECDSA) to the list of known hosts. 2019/10/18 07:19:40 fuzzer started 2019/10/18 07:19:42 dialing manager at 10.128.0.105:43535 2019/10/18 07:19:42 syscalls: 2524 2019/10/18 07:19:42 code coverage: enabled 2019/10/18 07:19:42 comparison tracing: enabled 2019/10/18 07:19:42 extra coverage: extra coverage is not supported by the kernel 2019/10/18 07:19:42 setuid sandbox: enabled 2019/10/18 07:19:42 namespace sandbox: enabled 2019/10/18 07:19:42 Android sandbox: /sys/fs/selinux/policy does not exist 2019/10/18 07:19:42 fault injection: enabled 2019/10/18 07:19:42 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/10/18 07:19:42 net packet injection: enabled 2019/10/18 07:19:42 net device setup: enabled 2019/10/18 07:19:42 concurrency sanitizer: enabled syzkaller login: [ 49.303153][ C0] ================================================================== [ 49.311406][ C0] BUG: KCSAN: data-race in tick_do_update_jiffies64 / tick_do_update_jiffies64 [ 49.320410][ C0] [ 49.322744][ C0] write to 0xffffffff86042008 of 8 bytes by interrupt on cpu 1: [ 49.330390][ C0] tick_do_update_jiffies64+0x105/0x260 [ 49.335918][ C0] tick_sched_do_timer+0xd4/0xe0 [ 49.340849][ C0] tick_sched_timer+0x43/0xe0 [ 49.345521][ C0] __hrtimer_run_queues+0x288/0x600 [ 49.350699][ C0] hrtimer_interrupt+0x22a/0x480 [ 49.355620][ C0] smp_apic_timer_interrupt+0xdc/0x280 [ 49.361091][ C0] apic_timer_interrupt+0xf/0x20 [ 49.366018][ C0] __kcsan_check_watchpoint+0x76/0x180 [ 49.371463][ C0] __tsan_write8+0x18/0x40 [ 49.375858][ C0] ipt_do_table+0x16b/0xe60 [ 49.380350][ C0] iptable_mangle_hook+0x7a/0x260 [ 49.385358][ C0] nf_hook_slow+0x83/0x160 [ 49.389749][ C0] ip_output+0x1d3/0x210 [ 49.393971][ C0] ip_local_out+0x74/0x90 [ 49.398289][ C0] [ 49.400596][ C0] read to 0xffffffff86042008 of 8 bytes by interrupt on cpu 0: [ 49.408128][ C0] tick_do_update_jiffies64+0x2b/0x260 [ 49.413586][ C0] tick_sched_do_timer+0xd4/0xe0 [ 49.418513][ C0] tick_sched_timer+0x43/0xe0 [ 49.424224][ C0] __hrtimer_run_queues+0x288/0x600 [ 49.429396][ C0] hrtimer_interrupt+0x22a/0x480 [ 49.434326][ C0] smp_apic_timer_interrupt+0xdc/0x280 [ 49.439787][ C0] apic_timer_interrupt+0xf/0x20 [ 49.444714][ C0] __kcsan_check_watchpoint+0x28/0x180 [ 49.450173][ C0] __tsan_read8+0x15/0x30 [ 49.454613][ C0] ktime_get_with_offset+0x7b/0x230 [ 49.459798][ C0] netif_receive_skb_internal+0x13e/0x190 [ 49.465501][ C0] napi_gro_receive+0x28f/0x330 [ 49.470331][ C0] receive_buf+0x284/0x30b0 [ 49.474812][ C0] [ 49.477116][ C0] Reported by Kernel Concurrency Sanitizer on: [ 49.483259][ C0] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 5.4.0-rc3+ #0 [ 49.490871][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.501164][ C0] ================================================================== [ 49.509203][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 49.515769][ C0] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 5.4.0-rc3+ #0 [ 49.523109][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.533152][ C0] Call Trace: [ 49.536492][ C0] [ 49.539530][ C0] dump_stack+0xf5/0x159 [ 49.543758][ C0] panic+0x210/0x640 [ 49.547635][ C0] ? __tsan_read8+0x15/0x30 [ 49.552151][ C0] ? vprintk_func+0x8d/0x140 [ 49.556868][ C0] kcsan_report.cold+0xc/0x10 [ 49.561540][ C0] __kcsan_setup_watchpoint+0x32e/0x4a0 [ 49.567181][ C0] ? __kcsan_setup_watchpoint+0x6b/0x4a0 [ 49.572905][ C0] __tsan_read8+0x2c/0x30 [ 49.577232][ C0] tick_do_update_jiffies64+0x2b/0x260 [ 49.582674][ C0] tick_sched_do_timer+0xd4/0xe0 [ 49.587594][ C0] tick_sched_timer+0x43/0xe0 [ 49.592249][ C0] __hrtimer_run_queues+0x288/0x600 [ 49.597428][ C0] ? tick_sched_do_timer+0xe0/0xe0 [ 49.602647][ C0] hrtimer_interrupt+0x22a/0x480 [ 49.607571][ C0] smp_apic_timer_interrupt+0xdc/0x280 [ 49.613021][ C0] ? do_IRQ+0xcb/0x180 [ 49.617073][ C0] apic_timer_interrupt+0xf/0x20 [ 49.621998][ C0] [ 49.624928][ C0] RIP: 0010:__kcsan_check_watchpoint+0x28/0x180 [ 49.631164][ C0] Code: 00 00 0f b6 0d 99 93 b1 04 31 c0 84 c9 0f 84 59 01 00 00 55 41 89 d0 65 8b 05 8c a3 ae 7e a9 00 01 1f 00 48 89 e5 41 57 41 56 <49> 89 f6 41 55 49 89 fd 41 54 53 0f 84 c8 00 00 00 48 c7 c0 b0 6f [ 49.650839][ C0] RSP: 0018:ffffc90000cb3a80 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 [ 49.659319][ C0] RAX: 0000000080000100 RBX: 0000000000000000 RCX: 0000000000000001 [ 49.667285][ C0] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff86040b30 [ 49.675276][ C0] RBP: ffffc90000cb3a90 R08: 0000000000000000 R09: 0000c90000cb3adb [ 49.683241][ C0] R10: 00000000aaaaaaab R11: ffffffff86045db0 R12: ffffffff86040b30 [ 49.691196][ C0] R13: ffffffff86040b98 R14: ffff888125f0d120 R15: ffff888125f0d100 [ 49.699185][ C0] __tsan_read8+0x15/0x30 [ 49.703598][ C0] ktime_get_with_offset+0x7b/0x230 [ 49.708797][ C0] netif_receive_skb_internal+0x13e/0x190 [ 49.714523][ C0] napi_gro_receive+0x28f/0x330 [ 49.719382][ C0] receive_buf+0x284/0x30b0 [ 49.723879][ C0] ? __tsan_write8+0x32/0x40 [ 49.728472][ C0] ? virtqueue_get_buf_ctx+0x4fd/0x5c0 [ 49.733927][ C0] ? __kcsan_setup_watchpoint+0x6b/0x4a0 [ 49.739539][ C0] ? __kcsan_setup_watchpoint+0x6b/0x4a0 [ 49.745152][ C0] virtnet_poll+0x436/0x7d0 [ 49.749652][ C0] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 49.755881][ C0] net_rx_action+0x3ae/0xa90 [ 49.760455][ C0] __do_softirq+0x115/0x33f [ 49.764958][ C0] ? takeover_tasklets+0x250/0x250 [ 49.770063][ C0] run_ksoftirqd+0x46/0x60 [ 49.774547][ C0] smpboot_thread_fn+0x37d/0x4a0 [ 49.779480][ C0] kthread+0x1d4/0x200 [ 49.783530][ C0] ? constant_test_bit.constprop.0+0x30/0x30 [ 49.789503][ C0] ? kthread_stop+0x2d0/0x2d0 [ 49.794203][ C0] ret_from_fork+0x1f/0x30 [ 49.800123][ C0] Kernel Offset: disabled [ 49.804457][ C0] Rebooting in 86400 seconds..