Warning: Permanently added '10.128.0.39' (ECDSA) to the list of known hosts. 2019/10/11 20:09:25 fuzzer started 2019/10/11 20:09:26 dialing manager at 10.128.0.105:43913 2019/10/11 20:09:26 syscalls: 2523 2019/10/11 20:09:26 code coverage: enabled 2019/10/11 20:09:26 comparison tracing: enabled 2019/10/11 20:09:26 extra coverage: extra coverage is not supported by the kernel 2019/10/11 20:09:26 setuid sandbox: enabled 2019/10/11 20:09:26 namespace sandbox: enabled 2019/10/11 20:09:26 Android sandbox: /sys/fs/selinux/policy does not exist 2019/10/11 20:09:26 fault injection: enabled 2019/10/11 20:09:26 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/10/11 20:09:26 net packet injection: enabled 2019/10/11 20:09:26 net device setup: enabled 2019/10/11 20:09:26 concurrency sanitizer: enabled syzkaller login: [ 46.072376][ C0] ================================================================== [ 46.081004][ C0] BUG: KCSAN: data-race in tick_do_update_jiffies64 / tick_do_update_jiffies64 [ 46.089999][ C0] [ 46.092315][ C0] write to 0xffffffff8603f008 of 8 bytes by interrupt on cpu 1: [ 46.099936][ C0] tick_do_update_jiffies64+0x105/0x260 [ 46.105458][ C0] tick_sched_do_timer+0xd4/0xe0 [ 46.111412][ C0] tick_sched_timer+0x43/0xe0 [ 46.116260][ C0] __hrtimer_run_queues+0x288/0x600 [ 46.122329][ C0] hrtimer_interrupt+0x22a/0x480 [ 46.127257][ C0] smp_apic_timer_interrupt+0xdc/0x280 [ 46.132952][ C0] apic_timer_interrupt+0xf/0x20 [ 46.138142][ C0] [ 46.140645][ C0] read to 0xffffffff8603f008 of 8 bytes by interrupt on cpu 0: [ 46.149088][ C0] tick_do_update_jiffies64+0x2b/0x260 [ 46.154742][ C0] tick_sched_do_timer+0xd4/0xe0 [ 46.159661][ C0] tick_sched_timer+0x43/0xe0 [ 46.164333][ C0] __hrtimer_run_queues+0x288/0x600 [ 46.170145][ C0] hrtimer_interrupt+0x22a/0x480 [ 46.177900][ C0] smp_apic_timer_interrupt+0xdc/0x280 [ 46.183942][ C0] apic_timer_interrupt+0xf/0x20 [ 46.188855][ C0] __kcsan_check_watchpoint+0x7c/0x180 [ 46.194472][ C0] __tsan_write4+0x18/0x40 [ 46.198879][ C0] __skb_clone+0xac/0x380 [ 46.203201][ C0] skb_clone+0x128/0x280 [ 46.207432][ C0] packet_rcv_spkt+0x2e2/0x350 [ 46.212969][ C0] __netif_receive_skb_core+0xe13/0x1a90 [ 46.219270][ C0] [ 46.221833][ C0] Reported by Kernel Concurrency Sanitizer on: [ 46.228939][ C0] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 5.3.0+ #0 [ 46.236633][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.247269][ C0] ================================================================== [ 46.257936][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 46.264941][ C0] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 5.3.0+ #0 [ 46.271868][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.282174][ C0] Call Trace: [ 46.285876][ C0] [ 46.288714][ C0] dump_stack+0xf5/0x159 [ 46.292946][ C0] panic+0x209/0x639 [ 46.296883][ C0] ? __tsan_write4+0x18/0x40 [ 46.301677][ C0] ? vprintk_func+0x8d/0x140 [ 46.306273][ C0] kcsan_report.cold+0xc/0x1b [ 46.311019][ C0] __kcsan_setup_watchpoint+0x3ee/0x510 [ 46.316749][ C0] ? __kcsan_setup_watchpoint+0x96/0x510 [ 46.322374][ C0] __tsan_read8+0x2c/0x30 [ 46.326773][ C0] tick_do_update_jiffies64+0x2b/0x260 [ 46.332209][ C0] tick_sched_do_timer+0xd4/0xe0 [ 46.337395][ C0] tick_sched_timer+0x43/0xe0 [ 46.342141][ C0] __hrtimer_run_queues+0x288/0x600 [ 46.347316][ C0] ? tick_sched_do_timer+0xe0/0xe0 [ 46.352410][ C0] hrtimer_interrupt+0x22a/0x480 [ 46.357439][ C0] smp_apic_timer_interrupt+0xdc/0x280 [ 46.362961][ C0] apic_timer_interrupt+0xf/0x20 [ 46.367959][ C0] [ 46.370927][ C0] RIP: 0010:__kcsan_check_watchpoint+0x7c/0x180 [ 46.377526][ C0] Code: 89 ee 4c 89 ef 44 0f b6 e2 48 b9 ff ff ff ff ff ff 00 00 48 c1 ee 0c 31 d2 48 21 cf 83 e6 3f 41 ba ab aa aa aa 4e 8d 4c 37 ff <8d> 42 01 48 89 c2 49 0f af c2 89 d3 48 c1 e8 21 8d 04 40 29 c3 8d [ 46.401489][ C0] RSP: 0018:ffffc90000cb3888 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 46.410158][ C0] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000ffffffffffff [ 46.418922][ C0] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000888124000774 [ 46.427051][ C0] RBP: ffffc90000cb38b0 R08: 0000000000000001 R09: 0000888124000777 [ 46.435986][ C0] R10: 00000000aaaaaaab R11: ffffffff86042c20 R12: 0000000000000001 [ 46.444405][ C0] R13: ffff888124000774 R14: 0000000000000004 R15: ffff888124d63b7e [ 46.453886][ C0] __tsan_write4+0x18/0x40 [ 46.459110][ C0] __skb_clone+0xac/0x380 [ 46.464137][ C0] skb_clone+0x128/0x280 [ 46.468448][ C0] ? packet_mmap+0x3d0/0x3d0 [ 46.473021][ C0] packet_rcv_spkt+0x2e2/0x350 [ 46.478750][ C0] ? packet_mmap+0x3d0/0x3d0 [ 46.486208][ C0] __netif_receive_skb_core+0xe13/0x1a90 [ 46.491841][ C0] ? __tsan_write2+0x32/0x40 [ 46.496855][ C0] ? __kcsan_setup_watchpoint+0x96/0x510 [ 46.502491][ C0] __netif_receive_skb_one_core+0x67/0xe0 [ 46.508807][ C0] __netif_receive_skb+0x37/0xf0 [ 46.513916][ C0] netif_receive_skb_internal+0x59/0x190 [ 46.519525][ C0] napi_gro_receive+0x28f/0x330 [ 46.524370][ C0] receive_buf+0x284/0x30b0 [ 46.528871][ C0] ? __tsan_write8+0x32/0x40 [ 46.533968][ C0] ? virtqueue_get_buf_ctx+0x4fd/0x5c0 [ 46.539409][ C0] ? __kcsan_setup_watchpoint+0x96/0x510 [ 46.545013][ C0] ? __kcsan_setup_watchpoint+0x96/0x510 [ 46.550646][ C0] virtnet_poll+0x436/0x7d0 [ 46.555140][ C0] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 46.561357][ C0] net_rx_action+0x3ae/0xa50 [ 46.565928][ C0] __do_softirq+0x115/0x33f [ 46.570410][ C0] ? takeover_tasklets+0x250/0x250 [ 46.575496][ C0] run_ksoftirqd+0x46/0x60 [ 46.579900][ C0] smpboot_thread_fn+0x37d/0x4a0 [ 46.584822][ C0] kthread+0x1d4/0x200 [ 46.588869][ C0] ? constant_test_bit.constprop.0+0x30/0x30 [ 46.594821][ C0] ? kthread_bind+0x50/0x50 [ 46.599308][ C0] ret_from_fork+0x1f/0x30 [ 46.604928][ C0] Kernel Offset: disabled [ 46.609247][ C0] Rebooting in 86400 seconds..