Warning: Permanently added '10.128.0.238' (ECDSA) to the list of known hosts.
2019/10/22 14:49:29 fuzzer started
2019/10/22 14:49:30 dialing manager at 10.128.0.105:33369
2019/10/22 14:49:30 syscalls: 2524
2019/10/22 14:49:30 code coverage: enabled
2019/10/22 14:49:30 comparison tracing: enabled
2019/10/22 14:49:30 extra coverage: extra coverage is not supported by the kernel
2019/10/22 14:49:30 setuid sandbox: enabled
2019/10/22 14:49:30 namespace sandbox: enabled
2019/10/22 14:49:30 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/22 14:49:30 fault injection: enabled
2019/10/22 14:49:30 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/22 14:49:30 net packet injection: enabled
2019/10/22 14:49:30 net device setup: enabled
2019/10/22 14:49:30 concurrency sanitizer: enabled
syzkaller login: [ 46.896107][ C1] ==================================================================
[ 46.904260][ C1] BUG: KCSAN: data-race in tcp_add_backlog / tcp_recvmsg
[ 46.911257][ C1]
[ 46.913578][ C1] read to 0xffff8881264a2178 of 8 bytes by task 7186 on cpu 0:
[ 46.921103][ C1] tcp_recvmsg+0x470/0x1a30
[ 46.925590][ C1] inet_recvmsg+0xbb/0x250
[ 46.929989][ C1] sock_recvmsg+0x92/0xb0
[ 46.934307][ C1] sock_read_iter+0x15f/0x1e0
[ 46.938965][ C1] new_sync_read+0x389/0x4f0
[ 46.943538][ C1] __vfs_read+0xb1/0xc0
[ 46.947681][ C1] vfs_read+0x143/0x2c0
[ 46.951827][ C1] ksys_read+0xd5/0x1b0
[ 46.955964][ C1] __x64_sys_read+0x4c/0x60
[ 46.960452][ C1] do_syscall_64+0xcc/0x370
[ 46.964947][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 46.970823][ C1]
[ 46.973139][ C1] write to 0xffff8881264a2178 of 8 bytes by interrupt on cpu 1:
[ 46.980759][ C1] tcp_add_backlog+0x45a/0xcc0
[ 46.985505][ C1] tcp_v4_rcv+0x1a60/0x1bb0
[ 46.989989][ C1] ip_protocol_deliver_rcu+0x4d/0x420
[ 46.995341][ C1] ip_local_deliver_finish+0x110/0x140
[ 47.000964][ C1] ip_local_deliver+0x133/0x210
[ 47.005812][ C1] ip_rcv_finish+0x121/0x160
[ 47.010381][ C1] ip_rcv+0x18f/0x1a0
[ 47.014347][ C1] __netif_receive_skb_one_core+0xa7/0xe0
[ 47.020050][ C1] __netif_receive_skb+0x37/0xf0
[ 47.024979][ C1] netif_receive_skb_internal+0x59/0x190
[ 47.030594][ C1] napi_gro_receive+0x28f/0x330
[ 47.035435][ C1] receive_buf+0x284/0x30b0
[ 47.039920][ C1] virtnet_poll+0x436/0x7d0
[ 47.044412][ C1]
[ 47.046719][ C1] Reported by Kernel Concurrency Sanitizer on:
[ 47.052856][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.4.0-rc3+ #0
[ 47.059940][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 47.069977][ C1] ==================================================================
[ 47.078025][ C1] Kernel panic - not syncing: panic_on_warn set ...
[ 47.084622][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.4.0-rc3+ #0
[ 47.091727][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 47.101774][ C1] Call Trace:
[ 47.105046][ C1]
[ 47.107893][ C1] dump_stack+0xf5/0x159
[ 47.112125][ C1] panic+0x210/0x640
[ 47.116022][ C1] ? __netif_receive_skb+0x37/0xf0
[ 47.121123][ C1] ? vprintk_func+0x8d/0x140
[ 47.125707][ C1] kcsan_report.cold+0xc/0x10
[ 47.130380][ C1] __kcsan_setup_watchpoint+0x32e/0x4a0
[ 47.135913][ C1] ? __sanitizer_cov_trace_cmp4+0x16/0x20
[ 47.141733][ C1] __tsan_write8+0x32/0x40
[ 47.146141][ C1] tcp_add_backlog+0x45a/0xcc0
[ 47.150905][ C1] tcp_v4_rcv+0x1a60/0x1bb0
[ 47.155395][ C1] ? __tsan_read8+0x2c/0x30
[ 47.159888][ C1] ip_protocol_deliver_rcu+0x4d/0x420
[ 47.165258][ C1] ip_local_deliver_finish+0x110/0x140
[ 47.170705][ C1] ip_local_deliver+0x133/0x210
[ 47.175552][ C1] ? ip_protocol_deliver_rcu+0x420/0x420
[ 47.181169][ C1] ip_rcv_finish+0x121/0x160
[ 47.185743][ C1] ip_rcv+0x18f/0x1a0
[ 47.189708][ C1] ? ip_sublist_rcv+0x5e0/0x5e0
[ 47.194545][ C1] ? ip_local_deliver+0x210/0x210
[ 47.199577][ C1] __netif_receive_skb_one_core+0xa7/0xe0
[ 47.205312][ C1] __netif_receive_skb+0x37/0xf0
[ 47.210243][ C1] netif_receive_skb_internal+0x59/0x190
[ 47.215877][ C1] napi_gro_receive+0x28f/0x330
[ 47.220804][ C1] receive_buf+0x284/0x30b0
[ 47.225306][ C1] ? __tsan_write8+0x32/0x40
[ 47.229890][ C1] ? virtqueue_get_buf_ctx+0x4fd/0x5c0
[ 47.235333][ C1] ? __kcsan_setup_watchpoint+0x6b/0x4a0
[ 47.240959][ C1] ? __kcsan_setup_watchpoint+0x6b/0x4a0
[ 47.246585][ C1] virtnet_poll+0x436/0x7d0
[ 47.251079][ C1] ? common_interrupt+0xf/0xf
[ 47.255749][ C1] net_rx_action+0x3ae/0xa90
[ 47.260347][ C1] __do_softirq+0x115/0x33f
[ 47.264870][ C1] irq_exit+0xbb/0xe0
[ 47.268861][ C1] do_IRQ+0xa6/0x180
[ 47.272753][ C1] common_interrupt+0xf/0xf
[ 47.277268][ C1]
[ 47.280198][ C1] RIP: 0010:native_safe_halt+0xe/0x10
[ 47.285834][ 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
[ 47.305422][ C1] RSP: 0018:ffffc90000cd3e48 EFLAGS: 00000282 ORIG_RAX: ffffffffffffffde
[ 47.313825][ C1] RAX: f7ced916872b0323 RBX: ffff88812b3850c0 RCX: 000000000000079c
[ 47.321793][ C1] RDX: 000000000000ea60 RSI: 020c49ba5e353f7d RDI: ffffffff85a563b8
[ 47.329747][ C1] RBP: ffffc90000cd3e80 R08: 0000000000000000 R09: 0000ffff85a563bf
[ 47.337711][ C1] R10: 00000000aaaaaaab R11: ffffffff86045cc8 R12: 0000000000000001
[ 47.345678][ C1] R13: ffff88812b3850c0 R14: 0000000000000000 R15: 0000000000000000
[ 47.353653][ C1] ? default_idle+0x50/0x230
[ 47.358234][ C1] arch_cpu_idle+0x1f/0x30
[ 47.362662][ C1] default_idle_call+0x1e/0x40
[ 47.367412][ C1] do_idle+0x1af/0x280
[ 47.371468][ C1] ? complete+0x44/0x50
[ 47.375614][ C1] cpu_startup_entry+0x1b/0x20
[ 47.380371][ C1] start_secondary+0x208/0x260
[ 47.385123][ C1] secondary_startup_64+0xa4/0xb0
[ 47.391359][ C1] Kernel Offset: disabled
[ 47.395819][ C1] Rebooting in 86400 seconds..