Warning: Permanently added '10.128.0.239' (ECDSA) to the list of known hosts. 2019/10/22 14:45:50 fuzzer started 2019/10/22 14:45:52 dialing manager at 10.128.0.105:33369 2019/10/22 14:45:52 syscalls: 2524 2019/10/22 14:45:52 code coverage: enabled 2019/10/22 14:45:52 comparison tracing: enabled 2019/10/22 14:45:52 extra coverage: extra coverage is not supported by the kernel 2019/10/22 14:45:52 setuid sandbox: enabled 2019/10/22 14:45:52 namespace sandbox: enabled 2019/10/22 14:45:52 Android sandbox: /sys/fs/selinux/policy does not exist 2019/10/22 14:45:52 fault injection: enabled 2019/10/22 14:45:52 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/10/22 14:45:52 net packet injection: enabled 2019/10/22 14:45:52 net device setup: enabled 2019/10/22 14:45:52 concurrency sanitizer: enabled syzkaller login: [ 43.896791][ C0] ================================================================== [ 43.904923][ C0] BUG: KCSAN: data-race in __nf_conntrack_find_get / __nf_ct_refresh_acct [ 43.913396][ C0] [ 43.915719][ C0] write to 0xffff888124ade908 of 4 bytes by task 7252 on cpu 1: [ 43.923345][ C0] __nf_ct_refresh_acct+0xfb/0x1b0 [ 43.928440][ C0] nf_conntrack_tcp_packet+0xd40/0x3390 [ 43.933974][ C0] nf_conntrack_in+0x410/0xa80 [ 43.938738][ C0] ipv4_conntrack_local+0xbe/0x130 [ 43.943837][ C0] nf_hook_slow+0x83/0x160 [ 43.948268][ C0] __ip_local_out+0x1f7/0x2b0 [ 43.952955][ C0] ip_local_out+0x31/0x90 [ 43.957265][ C0] __ip_queue_xmit+0x3a8/0xa40 [ 43.962010][ C0] ip_queue_xmit+0x45/0x60 [ 43.966412][ C0] __tcp_transmit_skb+0xe81/0x1d60 [ 43.971505][ C0] __tcp_send_ack+0x246/0x300 [ 43.976162][ C0] tcp_send_ack+0x34/0x40 [ 43.980474][ C0] tcp_cleanup_rbuf+0x130/0x360 [ 43.985306][ C0] tcp_recvmsg+0x633/0x1a30 [ 43.989870][ C0] [ 43.992201][ C0] read to 0xffff888124ade908 of 4 bytes by interrupt on cpu 0: [ 43.999748][ C0] __nf_conntrack_find_get+0x284/0x880 [ 44.005202][ C0] nf_conntrack_in+0x2ef/0xa80 [ 44.009945][ C0] ipv4_conntrack_in+0x27/0x40 [ 44.014694][ C0] nf_hook_slow+0x83/0x160 [ 44.019091][ C0] ip_rcv+0x12f/0x1a0 [ 44.023074][ C0] __netif_receive_skb_one_core+0xa7/0xe0 [ 44.028799][ C0] __netif_receive_skb+0x37/0xf0 [ 44.033727][ C0] netif_receive_skb_internal+0x59/0x190 [ 44.039357][ C0] napi_gro_receive+0x28f/0x330 [ 44.044199][ C0] receive_buf+0x284/0x30b0 [ 44.048693][ C0] virtnet_poll+0x436/0x7d0 [ 44.053195][ C0] net_rx_action+0x3ae/0xa90 [ 44.057787][ C0] __do_softirq+0x115/0x33f [ 44.062265][ C0] [ 44.064579][ C0] Reported by Kernel Concurrency Sanitizer on: [ 44.070729][ C0] CPU: 0 PID: 7239 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0 [ 44.078169][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.088203][ C0] ================================================================== [ 44.096258][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 44.102839][ C0] CPU: 0 PID: 7239 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0 [ 44.110285][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.120404][ C0] Call Trace: [ 44.123668][ C0] [ 44.126530][ C0] dump_stack+0xf5/0x159 [ 44.130754][ C0] panic+0x210/0x640 [ 44.134636][ C0] ? napi_gro_receive+0x28f/0x330 [ 44.139657][ C0] ? vprintk_func+0x8d/0x140 [ 44.144246][ C0] kcsan_report.cold+0xc/0x10 [ 44.148906][ C0] __kcsan_setup_watchpoint+0x32e/0x4a0 [ 44.154448][ C0] __tsan_read4+0x2c/0x30 [ 44.158763][ C0] __nf_conntrack_find_get+0x284/0x880 [ 44.164206][ C0] ? __tsan_write2+0x32/0x40 [ 44.168775][ C0] ? __kcsan_setup_watchpoint+0x6b/0x4a0 [ 44.174395][ C0] nf_conntrack_in+0x2ef/0xa80 [ 44.179159][ C0] ipv4_conntrack_in+0x27/0x40 [ 44.183907][ C0] nf_hook_slow+0x83/0x160 [ 44.188316][ C0] ? nf_ct_bridge_unregister+0x70/0x70 [ 44.193771][ C0] ip_rcv+0x12f/0x1a0 [ 44.197738][ C0] ? ip_sublist_rcv+0x5e0/0x5e0 [ 44.202695][ C0] ? ip_local_deliver+0x210/0x210 [ 44.207726][ C0] __netif_receive_skb_one_core+0xa7/0xe0 [ 44.213449][ C0] __netif_receive_skb+0x37/0xf0 [ 44.218381][ C0] netif_receive_skb_internal+0x59/0x190 [ 44.224005][ C0] napi_gro_receive+0x28f/0x330 [ 44.228851][ C0] receive_buf+0x284/0x30b0 [ 44.233337][ C0] ? __tsan_write8+0x32/0x40 [ 44.237920][ C0] ? virtqueue_get_buf_ctx+0x4fd/0x5c0 [ 44.243356][ C0] ? __kcsan_setup_watchpoint+0x6b/0x4a0 [ 44.248971][ C0] ? __kcsan_setup_watchpoint+0x6b/0x4a0 [ 44.254589][ C0] virtnet_poll+0x436/0x7d0 [ 44.259082][ C0] net_rx_action+0x3ae/0xa90 [ 44.263683][ C0] __do_softirq+0x115/0x33f [ 44.268177][ C0] irq_exit+0xbb/0xe0 [ 44.272153][ C0] do_IRQ+0xa6/0x180 [ 44.276039][ C0] common_interrupt+0xf/0xf [ 44.280549][ C0] [ 44.283476][ C0] RIP: 0033:0x45ac23 [ 44.287550][ C0] Code: 48 89 44 24 08 bf 00 00 00 00 be 00 00 00 00 ba 00 00 00 00 41 ba 00 00 00 00 49 89 e0 41 b9 00 00 00 00 b8 0e 01 00 00 0f 05 <48> 8b 6c 24 10 48 83 c4 18 c3 cc cc cc b8 ba 00 00 00 0f 05 89 44 [ 44.307138][ C0] RSP: 002b:000000c42004ff08 EFLAGS: 00000202 ORIG_RAX: ffffffffffffffda [ 44.315538][ C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000000045ac23 [ 44.325940][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 44.333982][ C0] RBP: 000000c42004ff18 R08: 000000c42004ff08 R09: 0000000000000000 [ 44.341935][ C0] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000042f0a0 [ 44.349988][ C0] R13: 00000000000000f1 R14: 0000000000000011 R15: 0000000000000000 [ 44.359448][ C0] Kernel Offset: disabled [ 44.363803][ C0] Rebooting in 86400 seconds..