Warning: Permanently added '10.128.0.88' (ECDSA) to the list of known hosts.
2019/12/18 13:53:37 fuzzer started
2019/12/18 13:53:39 dialing manager at 10.128.0.105:36065
2019/12/18 13:53:39 syscalls: 2686
2019/12/18 13:53:39 code coverage: enabled
2019/12/18 13:53:39 comparison tracing: enabled
2019/12/18 13:53:39 extra coverage: enabled
2019/12/18 13:53:39 setuid sandbox: enabled
2019/12/18 13:53:39 namespace sandbox: enabled
2019/12/18 13:53:39 Android sandbox: /sys/fs/selinux/policy does not exist
2019/12/18 13:53:39 fault injection: enabled
2019/12/18 13:53:39 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/12/18 13:53:39 net packet injection: enabled
2019/12/18 13:53:39 net device setup: enabled
2019/12/18 13:53:39 concurrency sanitizer: enabled
2019/12/18 13:53:39 devlink PCI setup: PCI device 0000:00:10.0 is not available
syzkaller login: [ 70.337966][ T7890] KCSAN: could not find function: 'poll_schedule_timeout'
2019/12/18 13:53:49 adding functions to KCSAN blacklist: 'find_get_pages_range_tag' 'ext4_nonda_switch' 'tomoyo_supervisor' 'ext4_has_free_clusters' 'blk_mq_dispatch_rq_list' 'add_timer' 'blk_mq_get_request' 'integrity_iint_find' 'futex_wait_queue_me' '__writeback_single_inode' 'find_next_bit' 'tick_do_update_jiffies64' 'blk_mq_run_hw_queue' 'tick_sched_do_timer' 'xas_find_marked' 'do_exit' 'blk_mq_sched_dispatch_requests' 'pcpu_alloc' '__delete_from_page_cache' 'process_srcu' 'common_perm_cond' '__hrtimer_run_queues' 'generic_fillattr' 'exit_signals' 'pid_update_inode' 'lruvec_lru_size' 'iomap_dio_bio_actor' 'tick_nohz_idle_stop_tick' 'ext4_free_inodes_count' 'fsnotify' 'watchdog' 'taskstats_exit' 'run_timer_softirq' 'dccp_fin' 'fasync_remove_entry' 'sit_tunnel_xmit' 'do_nanosleep' 'arch_perf_update_userpage' 'timer_clear_idle' 'yama_ptracer_del' 'evict' '__dentry_kill' '__neigh_event_send' 'ext4_writepages' 'kcm_rfree' 'ext4_mark_iloc_dirty' 'padata_find_next' 'commit_echoes' 'kauditd_thread' '__filemap_fdatawrite_range' 'iput' 'ktime_get_real_seconds' 'dd_has_work' 'echo_char' 'rcu_gp_fqs_loop' 'vm_area_dup' 'mod_timer' '__snd_rawmidi_transmit_ack' 'copy_process' 'ep_poll' 'ext4_free_inode' 'wbt_issue' 'generic_write_end' '__add_to_page_cache_locked' 'poll_schedule_timeout' 'generic_file_read_iter' 'do_signal_stop' 'rcu_gp_fqs_check_wake' '__perf_event_overflow' 'ext4_mpage_readpages' '__ext4_new_inode' 'do_try_to_free_pages' 'audit_log_start' 'wbt_done' 'do_syslog'
[ 259.671837][ C0] ==================================================================
[ 259.680008][ C0] BUG: KCSAN: data-race in virtqueue_disable_cb / virtqueue_get_buf_ctx
[ 259.688384][ C0]
[ 259.690758][ C0] read to 0xffff88821ab3c970 of 2 bytes by interrupt on cpu 1:
[ 259.698487][ C0] virtqueue_get_buf_ctx+0x4da/0x5c0
[ 259.703779][ C0] virtqueue_get_buf+0x29/0x40
[ 259.710102][ C0] free_old_xmit_skbs+0x9e/0x170
[ 259.716841][ C0] start_xmit+0xd3/0xbe0
[ 259.722141][ C0] dev_hard_start_xmit+0xef/0x430
[ 259.727821][ C0] sch_direct_xmit+0x2b3/0x900
[ 259.733660][ C0] __dev_queue_xmit+0x13e2/0x1ba0
[ 259.739229][ C0] dev_queue_xmit+0x21/0x30
[ 259.744007][ C0] ip_finish_output2+0x89b/0xea0
[ 259.749225][ C0] __ip_finish_output+0x23a/0x490
[ 259.755503][ C0] ip_finish_output+0x41/0x160
[ 259.760694][ C0] ip_output+0xfe/0x230
[ 259.765319][ C0] ip_local_out+0x74/0x90
[ 259.769845][ C0] __ip_queue_xmit+0x3a8/0xa40
[ 259.774996][ C0] ip_queue_xmit+0x45/0x60
[ 259.779594][ C0] __tcp_transmit_skb+0xea3/0x1df0
[ 259.785106][ C0] __tcp_send_ack+0x246/0x300
[ 259.790127][ C0] tcp_send_ack+0x34/0x40
[ 259.794729][ C0] __tcp_ack_snd_check+0xd9/0x580
[ 259.800496][ C0] tcp_rcv_established+0xce9/0xf50
[ 259.805974][ C0] tcp_v4_do_rcv+0x3b5/0x520
[ 259.811020][ C0] tcp_v4_rcv+0x1b2a/0x1d20
[ 259.816663][ C0] ip_protocol_deliver_rcu+0x4d/0x420
[ 259.822042][ C0] ip_local_deliver_finish+0x110/0x140
[ 259.827742][ C0] ip_local_deliver+0x133/0x210
[ 259.833481][ C0] ip_sublist_rcv_finish+0xf8/0x140
[ 259.839838][ C0] ip_sublist_rcv+0x418/0x550
[ 259.845272][ C0] ip_list_rcv+0x2f5/0x322
[ 259.849721][ C0] __netif_receive_skb_list_core+0x350/0x5c0
[ 259.855819][ C0] netif_receive_skb_list_internal+0x5d8/0x830
[ 259.862118][ C0] gro_normal_list.part.0+0x3a/0xb0
[ 259.867311][ C0] gro_normal_one+0x162/0x170
[ 259.871992][ C0] napi_gro_receive+0x288/0x300
[ 259.876934][ C0] receive_buf+0x284/0x30b0
[ 259.881533][ C0] virtnet_poll+0x436/0x7d0
[ 259.886522][ C0] net_rx_action+0x3ae/0xa90
[ 259.891124][ C0] __do_softirq+0x115/0x33f
[ 259.895999][ C0] irq_exit+0xbb/0xe0
[ 259.900109][ C0] do_IRQ+0x81/0x130
[ 259.904027][ C0] ret_from_intr+0x0/0x21
[ 259.908377][ C0] native_safe_halt+0xe/0x10
[ 259.912980][ C0] arch_cpu_idle+0xa/0x10
[ 259.917409][ C0] default_idle_call+0x1e/0x40
[ 259.922264][ C0] do_idle+0x1c2/0x290
[ 259.926337][ C0] cpu_startup_entry+0x1b/0x20
[ 259.931943][ C0] start_secondary+0x168/0x1b0
[ 259.936807][ C0] secondary_startup_64+0xa4/0xb0
[ 259.942191][ C0]
[ 259.944517][ C0] write to 0xffff88821ab3c970 of 2 bytes by interrupt on cpu 0:
[ 259.952159][ C0] virtqueue_disable_cb+0xe9/0x130
[ 259.957294][ C0] skb_xmit_done+0x6a/0x110
[ 259.965744][ C0] vring_interrupt+0x1a1/0x1c0
[ 259.970514][ C0] __handle_irq_event_percpu+0x9a/0x430
[ 259.976313][ C0] handle_irq_event_percpu+0x4b/0xe0
[ 259.981804][ C0] handle_irq_event+0x85/0xca
[ 259.986569][ C0] handle_edge_irq+0x1a4/0x4a0
[ 259.991416][ C0] do_IRQ+0x7c/0x130
[ 259.995884][ C0] ret_from_intr+0x0/0x21
[ 260.000313][ C0] native_safe_halt+0xe/0x10
[ 260.004910][ C0] arch_cpu_idle+0xa/0x10
[ 260.009348][ C0] default_idle_call+0x1e/0x40
[ 260.015162][ C0] do_idle+0x1c2/0x290
[ 260.019249][ C0] cpu_startup_entry+0x1b/0x20
[ 260.024024][ C0] rest_init+0xec/0xf6
[ 260.028192][ C0] arch_call_rest_init+0x17/0x37
[ 260.034015][ C0] start_kernel+0x838/0x85e
[ 260.038534][ C0] x86_64_start_reservations+0x29/0x2b
[ 260.044164][ C0] x86_64_start_kernel+0x72/0x76
[ 260.050069][ C0] secondary_startup_64+0xa4/0xb0
[ 260.056225][ C0]
[ 260.059008][ C0] Reported by Kernel Concurrency Sanitizer on:
[ 260.065982][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.5.0-rc1-syzkaller #0
[ 260.075697][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 260.086740][ C0] ==================================================================
[ 260.095976][ C0] Kernel panic - not syncing: panic_on_warn set ...
[ 260.102552][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.5.0-rc1-syzkaller #0
[ 260.110424][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 260.120469][ C0] Call Trace:
[ 260.123742][ C0]
[ 260.126623][ C0] dump_stack+0x11d/0x181
[ 260.130965][ C0] panic+0x210/0x640
[ 260.135116][ C0] ? vprintk_func+0x8d/0x140
[ 260.140099][ C0] kcsan_report.cold+0xc/0xd
[ 260.144737][ C0] kcsan_setup_watchpoint+0x3fe/0x460
[ 260.150561][ C0] __tsan_unaligned_write2+0xc7/0x110
[ 260.156649][ C0] virtqueue_disable_cb+0xe9/0x130
[ 260.162433][ C0] skb_xmit_done+0x6a/0x110
[ 260.167369][ C0] ? virtnet_poll_tx+0x1d0/0x1d0
[ 260.172405][ C0] vring_interrupt+0x1a1/0x1c0
[ 260.177446][ C0] ? virtqueue_enable_cb+0x40/0x40
[ 260.182626][ C0] __handle_irq_event_percpu+0x9a/0x430
[ 260.188190][ C0] handle_irq_event_percpu+0x4b/0xe0
[ 260.193691][ C0] handle_irq_event+0x85/0xca
[ 260.198783][ C0] handle_edge_irq+0x1a4/0x4a0
[ 260.204171][ C0] do_IRQ+0x7c/0x130
[ 260.208077][ C0] common_interrupt+0xf/0xf
[ 260.212758][ C0]
[ 260.215705][ C0] RIP: 0010:native_safe_halt+0xe/0x10
[ 260.221112][ 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
[ 260.241393][ C0] RSP: 0018:ffffffff85c03df8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffffd6
[ 260.249828][ C0] RAX: 0000000000000000 RBX: ffffffff85c2b780 RCX: ffffffff82546f95
[ 260.257836][ C0] RDX: 0000000000000000 RSI: ffffffff82546f9e RDI: 0000000000000005
[ 260.266104][ C0] RBP: ffffffff85c03e18 R08: ffffffff85c2b780 R09: 0000ffff85a2f160
[ 260.274251][ C0] R10: 0000ffff85c03e08 R11: 0000ffff85a2f167 R12: 0000000000000000
[ 260.282417][ C0] R13: ffffffff85c2b780 R14: 0000000000000000 R15: 0000000000000000
[ 260.290489][ C0] ? debug_smp_processor_id+0x35/0x137
[ 260.295951][ C0] ? debug_smp_processor_id+0x3e/0x137
[ 260.301792][ C0] ? default_idle+0x26/0x180
[ 260.306381][ C0] arch_cpu_idle+0xa/0x10
[ 260.310710][ C0] default_idle_call+0x1e/0x40
[ 260.315689][ C0] do_idle+0x1c2/0x290
[ 260.319871][ C0] cpu_startup_entry+0x1b/0x20
[ 260.324636][ C0] rest_init+0xec/0xf6
[ 260.328734][ C0] ? trace_event_define_fields_vector_free_moved+0xb4/0xb4
[ 260.335939][ C0] arch_call_rest_init+0x17/0x37
[ 260.340888][ C0] start_kernel+0x838/0x85e
[ 260.345421][ C0] x86_64_start_reservations+0x29/0x2b
[ 260.350891][ C0] x86_64_start_kernel+0x72/0x76
[ 260.356446][ C0] secondary_startup_64+0xa4/0xb0
[ 260.362333][ C0] Kernel Offset: disabled
[ 260.366821][ C0] Rebooting in 86400 seconds..