Warning: Permanently added '10.128.0.138' (ECDSA) to the list of known hosts.
2019/10/28 16:08:37 fuzzer started
2019/10/28 16:08:39 dialing manager at 10.128.0.105:45117
2019/10/28 16:08:39 syscalls: 2540
2019/10/28 16:08:39 code coverage: enabled
2019/10/28 16:08:39 comparison tracing: enabled
2019/10/28 16:08:39 extra coverage: extra coverage is not supported by the kernel
2019/10/28 16:08:39 setuid sandbox: enabled
2019/10/28 16:08:39 namespace sandbox: enabled
2019/10/28 16:08:39 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/28 16:08:39 fault injection: enabled
2019/10/28 16:08:39 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/28 16:08:39 net packet injection: enabled
2019/10/28 16:08:39 net device setup: enabled
2019/10/28 16:08:39 concurrency sanitizer: enabled
2019/10/28 16:08:40 adding functions to KCSAN blacklist: '__hrtimer_run_queues' 'pid_update_inode' 'tick_sched_do_timer' 'rcu_gp_fqs_loop' '__tcp_select_window' 'tcp_add_backlog' 'blk_mq_sched_dispatch_requests'
syzkaller login: [ 49.754945][ C1] ==================================================================
[ 49.763196][ C1] BUG: KCSAN: data-race in __nf_conntrack_find_get / __nf_ct_refresh_acct
[ 49.771667][ C1]
[ 49.773995][ C1] write to 0xffff888122d78808 of 4 bytes by task 7180 on cpu 0:
[ 49.781694][ C1] __nf_ct_refresh_acct+0xfb/0x1b0
[ 49.786779][ C1] nf_conntrack_tcp_packet+0xd40/0x3390
[ 49.792299][ C1] nf_conntrack_in+0x410/0xa80
[ 49.797041][ C1] ipv4_conntrack_local+0xbe/0x130
[ 49.802147][ C1] nf_hook_slow+0x83/0x160
[ 49.806547][ C1] __ip_local_out+0x1f7/0x2b0
[ 49.811254][ C1] ip_local_out+0x31/0x90
[ 49.815617][ C1] __ip_queue_xmit+0x3a8/0xa40
[ 49.820409][ C1] ip_queue_xmit+0x45/0x60
[ 49.824979][ C1] __tcp_transmit_skb+0xe81/0x1d60
[ 49.830131][ C1] __tcp_send_ack+0x246/0x300
[ 49.834786][ C1] tcp_send_ack+0x34/0x40
[ 49.839135][ C1] tcp_cleanup_rbuf+0x130/0x360
[ 49.844105][ C1] tcp_recvmsg+0x633/0x1a30
[ 49.848587][ C1]
[ 49.850900][ C1] read to 0xffff888122d78808 of 4 bytes by interrupt on cpu 1:
[ 49.858438][ C1] __nf_conntrack_find_get+0x284/0x880
[ 49.863885][ C1] nf_conntrack_in+0x2ef/0xa80
[ 49.868629][ C1] ipv4_conntrack_in+0x27/0x40
[ 49.873394][ C1] nf_hook_slow+0x83/0x160
[ 49.877787][ C1] ip_rcv+0x12f/0x1a0
[ 49.881747][ C1] __netif_receive_skb_one_core+0xa7/0xe0
[ 49.887441][ C1] __netif_receive_skb+0x37/0xf0
[ 49.892355][ C1] netif_receive_skb_internal+0x59/0x190
[ 49.897964][ C1] napi_gro_receive+0x28f/0x330
[ 49.902807][ C1] receive_buf+0x284/0x30b0
[ 49.907283][ C1] virtnet_poll+0x436/0x7d0
[ 49.911775][ C1] net_rx_action+0x3ae/0xa90
[ 49.916343][ C1] __do_softirq+0x115/0x33f
[ 49.920831][ C1]
[ 49.923136][ C1] Reported by Kernel Concurrency Sanitizer on:
[ 49.929265][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.4.0-rc3+ #0
[ 49.936362][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 49.946414][ C1] ==================================================================
[ 49.954460][ C1] Kernel panic - not syncing: panic_on_warn set ...
[ 49.961077][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.4.0-rc3+ #0
[ 49.968172][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 49.978201][ C1] Call Trace:
[ 49.981475][ C1]
[ 49.984327][ C1] dump_stack+0xf5/0x159
[ 49.988548][ C1] panic+0x210/0x640
[ 49.992436][ C1] ? napi_gro_receive+0x28f/0x330
[ 49.997463][ C1] ? vprintk_func+0x8d/0x140
[ 50.002047][ C1] kcsan_report.cold+0xc/0x10
[ 50.006709][ C1] __kcsan_setup_watchpoint+0x32e/0x4a0
[ 50.012341][ C1] __tsan_read4+0x2c/0x30
[ 50.016682][ C1] __nf_conntrack_find_get+0x284/0x880
[ 50.022146][ C1] ? __tsan_write2+0x32/0x40
[ 50.026723][ C1] ? __kcsan_setup_watchpoint+0x6b/0x4a0
[ 50.032984][ C1] nf_conntrack_in+0x2ef/0xa80
[ 50.037827][ C1] ipv4_conntrack_in+0x27/0x40
[ 50.042586][ C1] nf_hook_slow+0x83/0x160
[ 50.046987][ C1] ? nf_ct_bridge_unregister+0x70/0x70
[ 50.052438][ C1] ip_rcv+0x12f/0x1a0
[ 50.056401][ C1] ? ip_sublist_rcv+0x5e0/0x5e0
[ 50.061243][ C1] ? ip_local_deliver+0x210/0x210
[ 50.066248][ C1] __netif_receive_skb_one_core+0xa7/0xe0
[ 50.071965][ C1] __netif_receive_skb+0x37/0xf0
[ 50.076903][ C1] netif_receive_skb_internal+0x59/0x190
[ 50.082521][ C1] napi_gro_receive+0x28f/0x330
[ 50.087369][ C1] receive_buf+0x284/0x30b0
[ 50.091852][ C1] ? __tsan_write8+0x32/0x40
[ 50.096426][ C1] ? virtqueue_get_buf_ctx+0x4fd/0x5c0
[ 50.101876][ C1] ? __kcsan_setup_watchpoint+0x6b/0x4a0
[ 50.107494][ C1] ? __kcsan_setup_watchpoint+0x6b/0x4a0
[ 50.113102][ C1] virtnet_poll+0x436/0x7d0
[ 50.117588][ C1] net_rx_action+0x3ae/0xa90
[ 50.122159][ C1] __do_softirq+0x115/0x33f
[ 50.126732][ C1] irq_exit+0xbb/0xe0
[ 50.130703][ C1] do_IRQ+0xa6/0x180
[ 50.134575][ C1] common_interrupt+0xf/0xf
[ 50.139050][ C1]
[ 50.141970][ C1] RIP: 0010:native_safe_halt+0xe/0x10
[ 50.147327][ C1] Code: 90 90 90 90 90 90 90 90 90 90 90 90 e9 07 00 00 00 0f 00 2d fc b2 4b 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d ec b2 4b 00 fb f4 90 55 48 89 e5 41 55 41 54 53 e8 72 12 a4 fc e8 6d 8e b8 fd 0f
[ 50.166920][ C1] RSP: 0018:ffffc90000cd3e48 EFLAGS: 00000282 ORIG_RAX: ffffffffffffffde
[ 50.175321][ C1] RAX: 47ae147ae14854f1 RBX: ffff88812b3850c0 RCX: 000000000000023a
[ 50.183279][ C1] RDX: 000000000090d620 RSI: 020c49ba5e353f7d RDI: ffffffff85a563b8
[ 50.191245][ C1] RBP: ffffc90000cd3e80 R08: 0000000000000000 R09: 0000ffff85a563bf
[ 50.199629][ C1] R10: 00000000aaaaaaab R11: ffffffff86045cc8 R12: 0000000000000001
[ 50.207582][ C1] R13: ffff88812b3850c0 R14: 0000000000000000 R15: 0000000000000000
[ 50.215557][ C1] ? default_idle+0x50/0x230
[ 50.220140][ C1] arch_cpu_idle+0x1f/0x30
[ 50.224560][ C1] default_idle_call+0x1e/0x40
[ 50.229661][ C1] do_idle+0x1af/0x280
[ 50.233708][ C1] ? complete+0x44/0x50
[ 50.237867][ C1] cpu_startup_entry+0x1b/0x20
[ 50.242612][ C1] start_secondary+0x208/0x260
[ 50.247354][ C1] secondary_startup_64+0xa4/0xb0
[ 50.253727][ C1] Kernel Offset: disabled
[ 50.258062][ C1] Rebooting in 86400 seconds..