Warning: Permanently added '10.128.0.37' (ECDSA) to the list of known hosts. 2019/10/22 13:53:17 fuzzer started 2019/10/22 13:53:18 dialing manager at 10.128.0.105:37053 2019/10/22 13:53:19 syscalls: 2524 2019/10/22 13:53:19 code coverage: enabled 2019/10/22 13:53:19 comparison tracing: enabled 2019/10/22 13:53:19 extra coverage: extra coverage is not supported by the kernel 2019/10/22 13:53:19 setuid sandbox: enabled 2019/10/22 13:53:19 namespace sandbox: enabled 2019/10/22 13:53:19 Android sandbox: /sys/fs/selinux/policy does not exist 2019/10/22 13:53:19 fault injection: enabled 2019/10/22 13:53:19 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/10/22 13:53:19 net packet injection: enabled 2019/10/22 13:53:19 net device setup: enabled 2019/10/22 13:53:19 concurrency sanitizer: enabled syzkaller login: [ 48.873147][ T7239] ================================================================== [ 48.881305][ T7239] BUG: KCSAN: data-race in __nf_ct_refresh_acct / __nf_ct_refresh_acct [ 48.889589][ T7239] [ 48.891923][ T7239] read to 0xffff888124e50308 of 4 bytes by interrupt on cpu 0: [ 48.899583][ T7239] __nf_ct_refresh_acct+0xd4/0x1b0 [ 48.904802][ T7239] nf_conntrack_tcp_packet+0xd40/0x3390 [ 48.910775][ T7239] nf_conntrack_in+0x410/0xa80 [ 48.915524][ T7239] ipv4_conntrack_in+0x27/0x40 [ 48.920270][ T7239] nf_hook_slow+0x83/0x160 [ 48.924713][ T7239] ip_rcv+0x12f/0x1a0 [ 48.928680][ T7239] __netif_receive_skb_one_core+0xa7/0xe0 [ 48.934384][ T7239] __netif_receive_skb+0x37/0xf0 [ 48.939301][ T7239] netif_receive_skb_internal+0x59/0x190 [ 48.944912][ T7239] napi_gro_receive+0x28f/0x330 [ 48.949742][ T7239] receive_buf+0x284/0x30b0 [ 48.954501][ T7239] virtnet_poll+0x436/0x7d0 [ 48.958984][ T7239] net_rx_action+0x3ae/0xa90 [ 48.963663][ T7239] __do_softirq+0x115/0x33f [ 48.968138][ T7239] [ 48.970455][ T7239] write to 0xffff888124e50308 of 4 bytes by task 7239 on cpu 1: [ 48.978156][ T7239] __nf_ct_refresh_acct+0xfb/0x1b0 [ 48.983248][ T7239] nf_conntrack_tcp_packet+0xd40/0x3390 [ 48.988775][ T7239] nf_conntrack_in+0x410/0xa80 [ 48.993516][ T7239] ipv4_conntrack_local+0xbe/0x130 [ 48.998607][ T7239] nf_hook_slow+0x83/0x160 [ 49.003013][ T7239] __ip_local_out+0x1f7/0x2b0 [ 49.007676][ T7239] ip_local_out+0x31/0x90 [ 49.012009][ T7239] __ip_queue_xmit+0x3a8/0xa40 [ 49.016800][ T7239] ip_queue_xmit+0x45/0x60 [ 49.021203][ T7239] __tcp_transmit_skb+0xe81/0x1d60 [ 49.026328][ T7239] __tcp_send_ack+0x246/0x300 [ 49.031014][ T7239] tcp_send_ack+0x34/0x40 [ 49.035417][ T7239] tcp_cleanup_rbuf+0x130/0x360 [ 49.040241][ T7239] [ 49.042549][ T7239] Reported by Kernel Concurrency Sanitizer on: [ 49.048858][ T7239] CPU: 1 PID: 7239 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0 [ 49.056309][ T7239] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.066364][ T7239] ================================================================== [ 49.074458][ T7239] Kernel panic - not syncing: panic_on_warn set ... [ 49.081048][ T7239] CPU: 1 PID: 7239 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0 [ 49.088543][ T7239] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.098600][ T7239] Call Trace: [ 49.101898][ T7239] dump_stack+0xf5/0x159 [ 49.106123][ T7239] panic+0x210/0x640 [ 49.110007][ T7239] ? ip_queue_xmit+0x45/0x60 [ 49.114668][ T7239] ? vprintk_func+0x8d/0x140 [ 49.119264][ T7239] kcsan_report.cold+0xc/0x10 [ 49.124030][ T7239] __kcsan_setup_watchpoint+0x32e/0x4a0 [ 49.129558][ T7239] __tsan_write4+0x32/0x40 [ 49.133974][ T7239] __nf_ct_refresh_acct+0xfb/0x1b0 [ 49.139068][ T7239] nf_conntrack_tcp_packet+0xd40/0x3390 [ 49.144691][ T7239] ? __kcsan_setup_watchpoint+0x6b/0x4a0 [ 49.150310][ T7239] nf_conntrack_in+0x410/0xa80 [ 49.155060][ T7239] ipv4_conntrack_local+0xbe/0x130 [ 49.160162][ T7239] nf_hook_slow+0x83/0x160 [ 49.164732][ T7239] ? nf_ct_tcp_fixup+0xe0/0xe0 [ 49.169581][ T7239] __ip_local_out+0x1f7/0x2b0 [ 49.174345][ T7239] ? constant_test_bit+0x30/0x30 [ 49.179273][ T7239] ip_local_out+0x31/0x90 [ 49.183602][ T7239] __ip_queue_xmit+0x3a8/0xa40 [ 49.188364][ T7239] ip_queue_xmit+0x45/0x60 [ 49.192787][ T7239] __tcp_transmit_skb+0xe81/0x1d60 [ 49.197903][ T7239] __tcp_send_ack+0x246/0x300 [ 49.202562][ T7239] tcp_send_ack+0x34/0x40 [ 49.206905][ T7239] tcp_cleanup_rbuf+0x130/0x360 [ 49.211771][ T7239] tcp_recvmsg+0x633/0x1a30 [ 49.216273][ T7239] inet_recvmsg+0xbb/0x250 [ 49.220677][ T7239] ? __tsan_read8+0x2c/0x30 [ 49.225162][ T7239] ? inet_sendpage+0x100/0x100 [ 49.230123][ T7239] sock_recvmsg+0x92/0xb0 [ 49.234455][ T7239] sock_read_iter+0x15f/0x1e0 [ 49.239148][ T7239] new_sync_read+0x389/0x4f0 [ 49.243743][ T7239] __vfs_read+0xb1/0xc0 [ 49.247914][ T7239] vfs_read+0x143/0x2c0 [ 49.252089][ T7239] ksys_read+0xd5/0x1b0 [ 49.256327][ T7239] __x64_sys_read+0x4c/0x60 [ 49.260917][ T7239] do_syscall_64+0xcc/0x370 [ 49.265422][ T7239] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 49.271426][ T7239] RIP: 0033:0x47c530 [ 49.275313][ T7239] Code: 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 49 c7 c2 00 00 00 00 49 c7 c0 00 00 00 00 49 c7 c1 00 00 00 00 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30 [ 49.294903][ T7239] RSP: 002b:000000c42014f7d8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 49.304262][ T7239] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530 [ 49.312214][ T7239] RDX: 0000000000001000 RSI: 000000c4200ae000 RDI: 0000000000000003 [ 49.320347][ T7239] RBP: 000000c42014f830 R08: 0000000000000000 R09: 0000000000000000 [ 49.328303][ T7239] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000100 [ 49.336265][ T7239] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff [ 49.345753][ T7239] Kernel Offset: disabled [ 49.350242][ T7239] Rebooting in 86400 seconds..