Warning: Permanently added '10.128.0.178' (ECDSA) to the list of known hosts. 2019/10/04 18:39:21 fuzzer started 2019/10/04 18:39:23 dialing manager at 10.128.0.105:44881 2019/10/04 18:39:23 syscalls: 2523 2019/10/04 18:39:23 code coverage: enabled 2019/10/04 18:39:23 comparison tracing: enabled 2019/10/04 18:39:23 extra coverage: extra coverage is not supported by the kernel 2019/10/04 18:39:23 setuid sandbox: enabled 2019/10/04 18:39:23 namespace sandbox: enabled 2019/10/04 18:39:23 Android sandbox: /sys/fs/selinux/policy does not exist 2019/10/04 18:39:23 fault injection: enabled gin: [ 46.547892][ T7269] ================================================================== [ 46.556130][ T7269] BUG: KCSAN: data-race in tcp_ack / tcp_poll [ 46.562237][ T7269] [ 46.564612][ T7269] write to 0xffff888126448188 of 4 bytes by interrupt on cpu 0: [ 46.572784][ T7269] tcp_ack+0xf2c/0x3160 [ 46.576959][ T7269] tcp_rcv_established+0x37e/0xf50 [ 46.582120][ T7269] tcp_v4_do_rcv+0x381/0x4e0 [ 46.586730][ T7269] tcp_v4_rcv+0x1a03/0x1bf0 [ 46.591251][ T7269] ip_protocol_deliver_rcu+0x51/0x470 [ 46.596649][ T7269] ip_local_deliver_finish+0x110/0x140 [ 46.602336][ T7269] ip_local_deliver+0x133/0x210 [ 46.607300][ T7269] ip_rcv_finish+0x121/0x160 [ 46.611907][ T7269] ip_rcv+0x18f/0x1a0 [ 46.615906][ T7269] __netif_receive_skb_one_core+0xa7/0xe0 [ 46.621662][ T7269] __netif_receive_skb+0x37/0xf0 [ 46.626635][ T7269] netif_receive_skb_internal+0x59/0x190 [ 46.632294][ T7269] napi_gro_receive+0x28f/0x330 [ 46.637187][ T7269] receive_buf+0x284/0x30b0 [ 46.641686][ T7269] [ 46.644020][ T7269] read to 0xffff888126448188 of 4 bytes by task 7269 on cpu 1: [ 46.651610][ T7269] tcp_poll+0x422/0x6b0 [ 46.655765][ T7269] sock_poll+0xed/0x250 [ 46.660035][ T7269] do_select+0x7d0/0x1020 [ 46.664587][ T7269] core_sys_select+0x38b/0x520 [ 46.669689][ T7269] kern_select+0x106/0x170 [ 46.674295][ T7269] __x64_sys_select+0x70/0x90 [ 46.679000][ T7269] do_syscall_64+0xcf/0x2f0 [ 46.684510][ T7269] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 46.690489][ T7269] [ 46.692824][ T7269] Reported by Kernel Concurrency Sanitizer on: [ 46.699124][ T7269] CPU: 1 PID: 7269 Comm: sshd Not tainted 5.3.0+ #0 [ 46.705718][ T7269] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.716022][ T7269] ================================================================== [ 46.724307][ T7269] Kernel panic - not syncing: panic_on_warn set ... [ 46.731429][ T7269] CPU: 1 PID: 7269 Comm: sshd Not tainted 5.3.0+ #0 [ 46.738333][ T7269] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.749017][ T7269] Call Trace: [ 46.754601][ T7269] dump_stack+0xf5/0x159 [ 46.761068][ T7269] panic+0x209/0x639 [ 46.765180][ T7269] ? vprintk_func+0x8d/0x140 [ 46.770043][ T7269] kcsan_report.cold+0x57/0xeb [ 46.775569][ T7269] __kcsan_setup_watchpoint+0x342/0x500 [ 46.781172][ T7269] __tsan_read4+0x2c/0x30 [ 46.785531][ T7269] tcp_poll+0x422/0x6b0 [ 46.789909][ T7269] ? tcp_alloc_md5sig_pool+0x320/0x320 [ 46.795663][ T7269] sock_poll+0xed/0x250 [ 46.799838][ T7269] ? sock_read_iter+0x1e0/0x1e0 [ 46.804908][ T7269] do_select+0x7d0/0x1020 [ 46.809328][ T7269] ? poll_initwait+0xa0/0xa0 [ 46.815470][ T7269] ? set_fd_set.part.0+0x60/0x60 [ 46.820437][ T7269] ? tcp_push+0x1f3/0x3d0 [ 46.825361][ T7269] ? sock_zerocopy_put+0x78/0x90 [ 46.830448][ T7269] ? tcp_sendmsg_locked+0xc0a/0x1ef0 [ 46.837951][ T7269] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 46.844670][ T7269] ? __this_cpu_preempt_check+0x4a/0x170 [ 46.850458][ T7269] ? __local_bh_enable_ip+0x32/0x80 [ 46.855700][ T7269] ? _raw_spin_unlock_bh+0x44/0x50 [ 46.860938][ T7269] ? __tsan_read8+0x2c/0x30 [ 46.865465][ T7269] ? check_stack_object+0xda/0x110 [ 46.870857][ T7269] ? __tsan_read8+0x2c/0x30 [ 46.875402][ T7269] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 46.882031][ T7269] core_sys_select+0x38b/0x520 [ 46.886838][ T7269] ? __tsan_read8+0x2c/0x30 [ 46.891415][ T7269] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 46.897356][ T7269] ? __tsan_write8+0x32/0x40 [ 46.902154][ T7269] ? ktime_get_ts64+0x286/0x2b0 [ 46.907316][ T7269] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 46.913197][ T7269] ? timespec64_add_safe+0xae/0xd0 [ 46.918819][ T7269] kern_select+0x106/0x170 [ 46.923466][ T7269] __x64_sys_select+0x70/0x90 [ 46.928174][ T7269] do_syscall_64+0xcf/0x2f0 [ 46.932970][ T7269] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 46.938915][ T7269] RIP: 0033:0x7f39b9b2add3 [ 46.943379][ T7269] Code: 48 29 c2 64 89 11 48 83 c8 ff eb ea 90 90 90 90 90 90 90 90 90 90 90 83 3d 25 48 2b 00 00 75 13 49 89 ca b8 17 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 34 c3 48 83 ec 08 e8 ab 2f 01 00 48 89 04 24 [ 46.963263][ T7269] RSP: 002b:00007fffe65705f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000017 [ 46.973347][ T7269] RAX: ffffffffffffffda RBX: 00007fffe6570680 RCX: 00007f39b9b2add3 [ 46.981700][ T7269] RDX: 00005649e263eb10 RSI: 00005649e263eb30 RDI: 000000000000000c [ 46.990177][ T7269] RBP: 00005649e1b278dc R08: 00007fffe6570620 R09: 0101010101010101 [ 46.998174][ T7269] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffe6570688 [ 47.006163][ T7269] R13: 0000000000000000 R14: 00007fffe6570678 R15: 00007fffe657067c [ 47.015896][ T7269] Kernel Offset: disabled [ 47.020252][ T7269] Rebooting in 86400 seconds..