Warning: Permanently added '10.128.0.198' (ECDSA) to the list of known hosts.
2020/01/04 08:07:46 fuzzer started
2020/01/04 08:07:48 dialing manager at 10.128.0.105:36587
2020/01/04 08:07:48 syscalls: 2787
2020/01/04 08:07:48 code coverage: enabled
2020/01/04 08:07:48 comparison tracing: enabled
2020/01/04 08:07:48 extra coverage: enabled
2020/01/04 08:07:48 setuid sandbox: enabled
2020/01/04 08:07:48 namespace sandbox: enabled
2020/01/04 08:07:48 Android sandbox: /sys/fs/selinux/policy does not exist
2020/01/04 08:07:48 fault injection: enabled
2020/01/04 08:07:48 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/01/04 08:07:48 net packet injection: enabled
2020/01/04 08:07:48 net device setup: enabled
2020/01/04 08:07:48 concurrency sanitizer: enabled
2020/01/04 08:07:48 devlink PCI setup: PCI device 0000:00:10.0 is not available
syzkaller login: [ 80.850177][ T7903] KCSAN: could not find function: 'poll_schedule_timeout'
[ 84.806706][ T7903] KCSAN: could not find function: 'do_ipv6_setsockopt'
2020/01/04 08:07:59 adding functions to KCSAN blacklist: 'lruvec_lru_size' 'blk_mq_sched_dispatch_requests' 'do_try_to_free_pages' 'blk_mq_free_request' '__snd_rawmidi_transmit_ack' 'generic_write_end' 'dd_has_work' 'pid_update_inode' 'blk_mq_get_request' 'xas_find_marked' 'sbitmap_queue_clear' 'ext4_mark_iloc_dirty' 'snd_seq_check_queue' 'vm_area_dup' '__mark_inode_dirty' 'pcpu_alloc' 'ext4_has_free_clusters' 'iomap_dio_bio_actor' 'filemap_map_pages' 'ktime_get_real_seconds' 'shmem_file_read_iter' 'find_next_bit' 'complete_signal' 'rcu_gp_fqs_check_wake' '__ext4_new_inode' 'yama_ptracer_del' '__hrtimer_run_queues' 'find_get_pages_range_tag' 'ext4_free_inodes_count' 'list_lru_count_one' 'do_signal_stop' 'snd_seq_prioq_cell_out' 'add_timer' 'ext4_nonda_switch' '__delete_from_page_cache' 'rcu_gp_fqs_loop' 'do_exit' 'audit_log_start' 'poll_schedule_timeout' 'timer_clear_idle' 'ext4_mb_good_group' 'ext4_da_write_end' 'tomoyo_supervisor' 'do_nanosleep' 'tick_nohz_idle_stop_tick' 'virtqueue_disable_cb' 'mm_update_next_owner' '__writeback_single_inode' 'ep_poll' 'copy_process' 'sit_tunnel_xmit' 'blk_mq_dispatch_rq_list' 'xas_clear_mark' 'inode_permission' 'do_syslog' 'wbt_done' 'generic_fillattr' '__perf_event_overflow' 'del_timer' 'tick_sched_do_timer' 'atime_needs_update' 'do_ipv6_setsockopt' 'pipe_double_lock' 'kcm_rfree' 'run_timer_softirq' 'blk_mq_run_hw_queue' 'page_counter_try_charge' 'taskstats_exit' 'ext4_free_inode' 'process_srcu' 'tick_do_update_jiffies64' 'mod_timer'
[ 254.702337][ C0] ==================================================================
[ 254.710692][ C0] BUG: KCSAN: data-race in virtqueue_enable_cb_delayed / virtqueue_enable_cb_prepare
[ 254.721325][ C0]
[ 254.723669][ C0] read to 0xffff88812978b130 of 2 bytes by interrupt on cpu 1:
[ 254.731230][ C0] virtqueue_enable_cb_delayed+0x1dc/0x4d0
[ 254.737088][ C0] start_xmit+0xb0f/0xbe0
[ 254.741434][ C0] dev_hard_start_xmit+0xef/0x430
[ 254.746460][ C0] sch_direct_xmit+0x2b3/0x900
[ 254.751573][ C0] __dev_queue_xmit+0x13e2/0x1ba0
[ 254.756601][ C0] dev_queue_xmit+0x21/0x30
[ 254.761236][ C0] ip_finish_output2+0x89b/0xea0
[ 254.766197][ C0] __ip_finish_output+0x23a/0x490
[ 254.771211][ C0] ip_finish_output+0x41/0x160
[ 254.776332][ C0] ip_output+0xfe/0x230
[ 254.780504][ C0] ip_local_out+0x74/0x90
[ 254.785033][ C0] __ip_queue_xmit+0x3a8/0xa40
[ 254.789815][ C0] ip_queue_xmit+0x45/0x60
[ 254.794297][ C0] __tcp_transmit_skb+0xea3/0x1df0
[ 254.799414][ C0] __tcp_send_ack+0x246/0x300
[ 254.804091][ C0] tcp_send_ack+0x34/0x40
[ 254.808419][ C0] __tcp_ack_snd_check+0xd9/0x580
[ 254.813433][ C0] tcp_rcv_established+0xce9/0xf50
[ 254.818559][ C0] tcp_v4_do_rcv+0x3b5/0x520
[ 254.823148][ C0] tcp_v4_rcv+0x1b2a/0x1d20
[ 254.827641][ C0] ip_protocol_deliver_rcu+0x4d/0x420
[ 254.833005][ C0] ip_local_deliver_finish+0x110/0x140
[ 254.838473][ C0] ip_local_deliver+0x133/0x210
[ 254.843433][ C0] ip_sublist_rcv_finish+0xf8/0x140
[ 254.848632][ C0] ip_sublist_rcv+0x418/0x550
[ 254.853301][ C0] ip_list_rcv+0x2f5/0x322
[ 254.857712][ C0] __netif_receive_skb_list_core+0x350/0x5c0
[ 254.863691][ C0] netif_receive_skb_list_internal+0x5d8/0x830
[ 254.869848][ C0] gro_normal_list.part.0+0x3a/0xb0
[ 254.875044][ C0] gro_normal_one+0x162/0x170
[ 254.879712][ C0] napi_gro_receive+0x288/0x300
[ 254.884552][ C0] receive_buf+0x284/0x30b0
[ 254.889057][ C0] virtnet_poll+0x436/0x7d0
[ 254.893569][ C0] net_rx_action+0x3ae/0xa90
[ 254.898157][ C0] __do_softirq+0x115/0x33f
[ 254.902650][ C0] irq_exit+0xbb/0xe0
[ 254.906621][ C0] do_IRQ+0x81/0x130
[ 254.910682][ C0] ret_from_intr+0x0/0x21
[ 254.915011][ C0] native_safe_halt+0xe/0x10
[ 254.919611][ C0] arch_cpu_idle+0xa/0x10
[ 254.923957][ C0] default_idle_call+0x1e/0x40
[ 254.928711][ C0] do_idle+0x1c2/0x290
[ 254.932767][ C0] cpu_startup_entry+0x1b/0x20
[ 254.937660][ C0] start_secondary+0x168/0x1b0
[ 254.942442][ C0] secondary_startup_64+0xa4/0xb0
[ 254.947443][ C0]
[ 254.949781][ C0] write to 0xffff88812978b130 of 2 bytes by interrupt on cpu 0:
[ 254.957410][ C0] virtqueue_enable_cb_prepare+0x1ce/0x2b0
[ 254.963212][ C0] virtqueue_napi_complete+0x2c/0xa0
[ 254.968515][ C0] virtnet_poll_tx+0x15f/0x1d0
[ 254.973273][ C0] net_rx_action+0x3ae/0xa90
[ 254.978120][ C0] __do_softirq+0x115/0x33f
[ 254.982632][ C0] irq_exit+0xbb/0xe0
[ 254.986621][ C0] do_IRQ+0x81/0x130
[ 254.990529][ C0] ret_from_intr+0x0/0x21
[ 254.994870][ C0] native_safe_halt+0xe/0x10
[ 254.999472][ C0] arch_cpu_idle+0xa/0x10
[ 255.003809][ C0] default_idle_call+0x1e/0x40
[ 255.008747][ C0] do_idle+0x1c2/0x290
[ 255.012832][ C0] cpu_startup_entry+0x1b/0x20
[ 255.017735][ C0] rest_init+0xec/0xf6
[ 255.021908][ C0] arch_call_rest_init+0x17/0x37
[ 255.026839][ C0] start_kernel+0x838/0x85e
[ 255.031503][ C0] x86_64_start_reservations+0x29/0x2b
[ 255.037025][ C0] x86_64_start_kernel+0x72/0x76
[ 255.041953][ C0] secondary_startup_64+0xa4/0xb0
[ 255.046959][ C0]
[ 255.049329][ C0] Reported by Kernel Concurrency Sanitizer on:
[ 255.055477][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.5.0-rc1-syzkaller #0
[ 255.063353][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 255.074050][ C0] ==================================================================
[ 255.082101][ C0] Kernel panic - not syncing: panic_on_warn set ...
[ 255.088689][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.5.0-rc1-syzkaller #0
[ 255.096597][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 255.106652][ C0] Call Trace:
[ 255.109925][ C0]
[ 255.112800][ C0] dump_stack+0x11d/0x181
[ 255.117184][ C0] panic+0x210/0x640
[ 255.121076][ C0] ? vprintk_func+0x8d/0x140
[ 255.125669][ C0] kcsan_report.cold+0xc/0xd
[ 255.130264][ C0] kcsan_setup_watchpoint+0x3fe/0x460
[ 255.135638][ C0] __tsan_unaligned_write2+0xc7/0x110
[ 255.141051][ C0] virtqueue_enable_cb_prepare+0x1ce/0x2b0
[ 255.146864][ C0] virtqueue_napi_complete+0x2c/0xa0
[ 255.152152][ C0] virtnet_poll_tx+0x15f/0x1d0
[ 255.156940][ C0] net_rx_action+0x3ae/0xa90
[ 255.161861][ C0] __do_softirq+0x115/0x33f
[ 255.166514][ C0] irq_exit+0xbb/0xe0
[ 255.170507][ C0] do_IRQ+0x81/0x130
[ 255.174436][ C0] common_interrupt+0xf/0xf
[ 255.178932][ C0]
[ 255.181885][ C0] RIP: 0010:native_safe_halt+0xe/0x10
[ 255.187256][ C0] Code: cc cc cc cc cc cc cc cc cc cc cc cc e9 07 00 00 00 0f 00 2d 4c b6 59 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d 3c b6 59 00 fb f4 cc 55 48 89 e5 41 55 41 54 53 e8 22 2b 91 fc e8 3d ae ab fd 0f
[ 255.206859][ C0] RSP: 0018:ffffffff85c03df8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffffd6
[ 255.215282][ C0] RAX: 0000000000000000 RBX: ffffffff85c2b780 RCX: ffffffff82546f95
[ 255.223252][ C0] RDX: 0000000000000000 RSI: ffffffff82546f9e RDI: 0000000000000005
[ 255.231240][ C0] RBP: ffffffff85c03e18 R08: ffffffff85c2b780 R09: 0000ffff85a2f160
[ 255.240002][ C0] R10: 0000ffff85c03e08 R11: 0000ffff85a2f167 R12: 0000000000000000
[ 255.248065][ C0] R13: ffffffff85c2b780 R14: 0000000000000000 R15: 0000000000000000
[ 255.256058][ C0] ? debug_smp_processor_id+0x35/0x137
[ 255.261523][ C0] ? debug_smp_processor_id+0x3e/0x137
[ 255.267427][ C0] ? default_idle+0x26/0x180
[ 255.272026][ C0] arch_cpu_idle+0xa/0x10
[ 255.276628][ C0] default_idle_call+0x1e/0x40
[ 255.281400][ C0] do_idle+0x1c2/0x290
[ 255.290920][ C0] cpu_startup_entry+0x1b/0x20
[ 255.296119][ C0] rest_init+0xec/0xf6
[ 255.300204][ C0] ? trace_event_define_fields_vector_free_moved+0xb4/0xb4
[ 255.307395][ C0] arch_call_rest_init+0x17/0x37
[ 255.312328][ C0] start_kernel+0x838/0x85e
[ 255.316838][ C0] x86_64_start_reservations+0x29/0x2b
[ 255.322412][ C0] x86_64_start_kernel+0x72/0x76
[ 255.327389][ C0] secondary_startup_64+0xa4/0xb0
[ 255.333884][ C0] Kernel Offset: disabled
[ 255.338648][ C0] Rebooting in 86400 seconds..