Warning: Permanently added '10.128.1.9' (ECDSA) to the list of known hosts.
2019/10/18 16:18:51 fuzzer started
2019/10/18 16:18:53 dialing manager at 10.128.0.105:43535
2019/10/18 16:18:53 syscalls: 2524
2019/10/18 16:18:53 code coverage: enabled
2019/10/18 16:18:53 comparison tracing: enabled
2019/10/18 16:18:53 extra coverage: extra coverage is not supported by the kernel
2019/10/18 16:18:53 setuid sandbox: enabled
2019/10/18 16:18:53 namespace sandbox: enabled
2019/10/18 16:18:53 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/18 16:18:53 fault injection: enabled
2019/10/18 16:18:53 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/18 16:18:53 net packet injection: enabled
2019/10/18 16:18:53 net device setup: enabled
2019/10/18 16:18:53 concurrency sanitizer: enabled
syzkaller login: [   45.994633][ T7212] ==================================================================
[   46.002783][ T7212] BUG: KCSAN: data-race in tcp_add_backlog / tcp_rcv_space_adjust
[   46.010551][ T7212] 
[   46.012854][ T7212] read to 0xffff888122564a4c of 4 bytes by interrupt on cpu 1:
[   46.020403][ T7212]  tcp_add_backlog+0x43/0xcc0
[   46.025053][ T7212]  tcp_v4_rcv+0x1a60/0x1bb0
[   46.029558][ T7212]  ip_protocol_deliver_rcu+0x4d/0x420
[   46.034902][ T7212]  ip_local_deliver_finish+0x110/0x140
[   46.040339][ T7212]  ip_local_deliver+0x133/0x210
[   46.045161][ T7212]  ip_rcv_finish+0x121/0x160
[   46.049721][ T7212]  ip_rcv+0x18f/0x1a0
[   46.053677][ T7212]  __netif_receive_skb_one_core+0xa7/0xe0
[   46.059370][ T7212]  __netif_receive_skb+0x37/0xf0
[   46.064283][ T7212]  netif_receive_skb_internal+0x59/0x190
[   46.069995][ T7212]  napi_gro_receive+0x28f/0x330
[   46.074818][ T7212]  receive_buf+0x284/0x30b0
[   46.079292][ T7212]  virtnet_poll+0x436/0x7d0
[   46.083769][ T7212]  net_rx_action+0x3ae/0xa90
[   46.088323][ T7212] 
[   46.090628][ T7212] write to 0xffff888122564a4c of 4 bytes by task 7212 on cpu 0:
[   46.098228][ T7212]  tcp_rcv_space_adjust+0x40f/0x4c0
[   46.103416][ T7212]  tcp_recvmsg+0xdaa/0x1a30
[   46.107893][ T7212]  inet_recvmsg+0xbb/0x250
[   46.112300][ T7212]  sock_recvmsg+0x92/0xb0
[   46.116602][ T7212]  sock_read_iter+0x15f/0x1e0
[   46.121253][ T7212]  new_sync_read+0x389/0x4f0
[   46.125818][ T7212]  __vfs_read+0xb1/0xc0
[   46.129944][ T7212]  vfs_read+0x143/0x2c0
[   46.134069][ T7212]  ksys_read+0xd5/0x1b0
[   46.138209][ T7212]  __x64_sys_read+0x4c/0x60
[   46.142685][ T7212]  do_syscall_64+0xcc/0x370
[   46.147160][ T7212]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   46.153015][ T7212] 
[   46.155362][ T7212] Reported by Kernel Concurrency Sanitizer on:
[   46.161488][ T7212] CPU: 0 PID: 7212 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   46.168914][ T7212] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   46.178939][ T7212] ==================================================================
[   46.186972][ T7212] Kernel panic - not syncing: panic_on_warn set ...
[   46.193531][ T7212] CPU: 0 PID: 7212 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   46.200962][ T7212] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   46.211001][ T7212] Call Trace:
[   46.214268][ T7212]  dump_stack+0xf5/0x159
[   46.218486][ T7212]  panic+0x210/0x640
[   46.222366][ T7212]  ? ksys_read+0xd5/0x1b0
[   46.226671][ T7212]  ? vprintk_func+0x8d/0x140
[   46.231240][ T7212]  kcsan_report.cold+0xc/0x10
[   46.235892][ T7212]  __kcsan_setup_watchpoint+0x32e/0x4a0
[   46.241422][ T7212]  __tsan_write4+0x32/0x40
[   46.245810][ T7212]  tcp_rcv_space_adjust+0x40f/0x4c0
[   46.250989][ T7212]  tcp_recvmsg+0xdaa/0x1a30
[   46.255472][ T7212]  ? preempt_schedule_common+0x37/0x90
[   46.260904][ T7212]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   46.266515][ T7212]  inet_recvmsg+0xbb/0x250
[   46.270913][ T7212]  ? __tsan_read8+0x2c/0x30
[   46.275401][ T7212]  ? inet_sendpage+0x100/0x100
[   46.280141][ T7212]  sock_recvmsg+0x92/0xb0
[   46.284446][ T7212]  sock_read_iter+0x15f/0x1e0
[   46.289100][ T7212]  new_sync_read+0x389/0x4f0
[   46.293671][ T7212]  __vfs_read+0xb1/0xc0
[   46.297802][ T7212]  vfs_read+0x143/0x2c0
[   46.301931][ T7212]  ksys_read+0xd5/0x1b0
[   46.306062][ T7212]  __x64_sys_read+0x4c/0x60
[   46.310542][ T7212]  do_syscall_64+0xcc/0x370
[   46.315019][ T7212]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   46.320882][ T7212] RIP: 0033:0x47c530
[   46.324756][ T7212] 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
[   46.344332][ T7212] RSP: 002b:000000c4202f57d8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000
[   46.352712][ T7212] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   46.360653][ T7212] RDX: 0000000000001000 RSI: 000000c420314000 RDI: 0000000000000003
[   46.368596][ T7212] RBP: 000000c4202f5830 R08: 0000000000000000 R09: 0000000000000000
[   46.376538][ T7212] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000004
[   46.384569][ T7212] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff
[   46.394066][ T7212] Kernel Offset: disabled
[   46.398396][ T7212] Rebooting in 86400 seconds..