Warning: Permanently added '10.128.0.244' (ECDSA) to the list of known hosts. 2019/10/13 16:23:12 fuzzer started 2019/10/13 16:23:14 dialing manager at 10.128.0.105:40973 2019/10/13 16:23:14 syscalls: 2523 2019/10/13 16:23:14 code coverage: enabled 2019/10/13 16:23:14 comparison tracing: enabled 2019/10/13 16:23:14 extra coverage: extra coverage is not supported by the kernel 2019/10/13 16:23:14 setuid sandbox: enabled 2019/10/13 16:23:14 namespace sandbox: enabled 2019/10/13 16:23:14 Android sandbox: /sys/fs/selinux/policy does not exist 2019/10/13 16:23:14 fault injection: enabled 2019/10/13 16:23:14 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/10/13 16:23:14 net packet injection: enabled 2019/10/13 16:23:14 net device setup: enabled 2019/10/13 16:23:14 concurrency sanitizer: enabled syzkaller login: [ 49.243547][ C1] ================================================================== [ 49.251731][ C1] BUG: KCSAN: data-race in tick_sched_do_timer / tick_sched_do_timer [ 49.259766][ C1] [ 49.262088][ C1] write to 0xffffffff85caf310 of 4 bytes by interrupt on cpu 0: [ 49.269710][ C1] tick_sched_do_timer+0xc0/0xe0 [ 49.274624][ C1] tick_sched_timer+0x43/0xe0 [ 49.279287][ C1] __hrtimer_run_queues+0x288/0x600 [ 49.284468][ C1] hrtimer_interrupt+0x22a/0x480 [ 49.289384][ C1] smp_apic_timer_interrupt+0xdc/0x280 [ 49.294824][ C1] apic_timer_interrupt+0xf/0x20 [ 49.299755][ C1] __kcsan_check_watchpoint+0xed/0x180 [ 49.305189][ C1] __tsan_read8+0x15/0x30 [ 49.309496][ C1] iptable_raw_hook+0x27/0x60 [ 49.314153][ C1] nf_hook_slow+0x83/0x160 [ 49.318548][ C1] __ip_local_out+0x1f7/0x2b0 [ 49.323200][ C1] ip_local_out+0x31/0x90 [ 49.327507][ C1] __ip_queue_xmit+0x3a8/0xa40 [ 49.332253][ C1] ip_queue_xmit+0x45/0x60 [ 49.336640][ C1] [ 49.338948][ C1] read to 0xffffffff85caf310 of 4 bytes by interrupt on cpu 1: [ 49.346464][ C1] tick_sched_do_timer+0x33/0xe0 [ 49.351376][ C1] tick_sched_timer+0x43/0xe0 [ 49.356032][ C1] __hrtimer_run_queues+0x288/0x600 [ 49.361206][ C1] hrtimer_interrupt+0x22a/0x480 [ 49.366129][ C1] smp_apic_timer_interrupt+0xdc/0x280 [ 49.371580][ C1] apic_timer_interrupt+0xf/0x20 [ 49.376504][ C1] __kcsan_setup_watchpoint+0x8/0x510 [ 49.381860][ C1] __tsan_read4+0x2c/0x30 [ 49.386178][ C1] __rcu_read_lock+0x2a/0x50 [ 49.390753][ C1] ip_rcv+0x84/0x1a0 [ 49.394624][ C1] __netif_receive_skb_one_core+0xa7/0xe0 [ 49.400320][ C1] __netif_receive_skb+0x37/0xf0 [ 49.405235][ C1] netif_receive_skb_internal+0x59/0x190 [ 49.410860][ C1] [ 49.413174][ C1] Reported by Kernel Concurrency Sanitizer on: [ 49.419305][ C1] CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.3.0+ #0 [ 49.426309][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.436339][ C1] ================================================================== [ 49.444374][ C1] Kernel panic - not syncing: panic_on_warn set ... [ 49.450949][ C1] CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.3.0+ #0 [ 49.457939][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.467967][ C1] Call Trace: [ 49.471224][ C1] [ 49.474070][ C1] dump_stack+0xf5/0x159 [ 49.478291][ C1] panic+0x209/0x639 [ 49.482181][ C1] ? __rcu_read_lock+0x2a/0x50 [ 49.486939][ C1] ? vprintk_func+0x8d/0x140 [ 49.491552][ C1] kcsan_report.cold+0xc/0x1b [ 49.496257][ C1] __kcsan_setup_watchpoint+0x3ee/0x510 [ 49.501790][ C1] __tsan_read4+0x2c/0x30 [ 49.506129][ C1] tick_sched_do_timer+0x33/0xe0 [ 49.511045][ C1] tick_sched_timer+0x43/0xe0 [ 49.515752][ C1] __hrtimer_run_queues+0x288/0x600 [ 49.521018][ C1] ? tick_sched_do_timer+0xe0/0xe0 [ 49.526109][ C1] hrtimer_interrupt+0x22a/0x480 [ 49.531029][ C1] smp_apic_timer_interrupt+0xdc/0x280 [ 49.536475][ C1] apic_timer_interrupt+0xf/0x20 [ 49.541394][ C1] [ 49.544312][ C1] RIP: 0010:__kcsan_setup_watchpoint+0x8/0x510 [ 49.550443][ C1] Code: 41 5e 41 5f 5d c3 c3 bf 04 00 00 00 41 bf 02 00 00 00 e8 3b 0b 00 00 eb bc 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 57 41 56 <41> 55 49 89 fd 41 54 49 89 f4 53 89 d3 48 83 ec 18 66 0f 1f 44 00 [ 49.570025][ C1] RSP: 0018:ffffc90000cf39d0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 49.578415][ C1] RAX: 0000000000000001 RBX: ffff88812b3a4080 RCX: 0000ffffffffffff [ 49.586366][ C1] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88812b3a43f8 [ 49.594315][ C1] RBP: ffffc90000cf39e0 R08: 0000000000000000 R09: 000088812b3a43fb [ 49.602276][ C1] R10: 00000000aaaaaaab R11: ffffffff86042d38 R12: ffff88812b3a43f8 [ 49.610226][ C1] R13: ffff88812b3a43f8 R14: ffffffff85bf8040 R15: ffff88812ae3e000 [ 49.618189][ C1] __tsan_read4+0x2c/0x30 [ 49.622497][ C1] __rcu_read_lock+0x2a/0x50 [ 49.627076][ C1] ip_rcv+0x84/0x1a0 [ 49.630961][ C1] ? __kcsan_setup_watchpoint+0x96/0x510 [ 49.636574][ C1] ? __kcsan_setup_watchpoint+0x96/0x510 [ 49.642196][ C1] ? ip_local_deliver+0x210/0x210 [ 49.647210][ C1] ? ip_local_deliver+0x210/0x210 [ 49.652219][ C1] __netif_receive_skb_one_core+0xa7/0xe0 [ 49.657969][ C1] __netif_receive_skb+0x37/0xf0 [ 49.662907][ C1] netif_receive_skb_internal+0x59/0x190 [ 49.668527][ C1] napi_gro_receive+0x28f/0x330 [ 49.673360][ C1] receive_buf+0x284/0x30b0 [ 49.677853][ C1] ? __tsan_write8+0x32/0x40 [ 49.682435][ C1] ? virtqueue_get_buf_ctx+0x4fd/0x5c0 [ 49.687871][ C1] ? __kcsan_setup_watchpoint+0x96/0x510 [ 49.693489][ C1] ? __kcsan_setup_watchpoint+0x96/0x510 [ 49.699112][ C1] virtnet_poll+0x436/0x7d0 [ 49.703963][ C1] net_rx_action+0x3ae/0xa50 [ 49.708546][ C1] __do_softirq+0x115/0x33f [ 49.713028][ C1] ? takeover_tasklets+0x250/0x250 [ 49.718117][ C1] run_ksoftirqd+0x46/0x60 [ 49.722513][ C1] smpboot_thread_fn+0x37d/0x4a0 [ 49.727427][ C1] kthread+0x1d4/0x200 [ 49.731472][ C1] ? constant_test_bit.constprop.0+0x30/0x30 [ 49.737425][ C1] ? kthread_bind+0x50/0x50 [ 49.741925][ C1] ret_from_fork+0x1f/0x30 [ 49.747707][ C1] Kernel Offset: disabled [ 49.752029][ C1] Rebooting in 86400 seconds..