Warning: Permanently added '10.128.10.12' (ECDSA) to the list of known hosts.
2019/11/05 12:09:23 fuzzer started
2019/11/05 12:09:24 dialing manager at 10.128.0.105:39277
2019/11/05 12:09:24 syscalls: 2553
2019/11/05 12:09:24 code coverage: enabled
2019/11/05 12:09:24 comparison tracing: enabled
2019/11/05 12:09:24 extra coverage: extra coverage is not supported by the kernel
2019/11/05 12:09:24 setuid sandbox: enabled
2019/11/05 12:09:24 namespace sandbox: enabled
2019/11/05 12:09:24 Android sandbox: /sys/fs/selinux/policy does not exist
2019/11/05 12:09:24 fault injection: enabled
2019/11/05 12:09:24 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/11/05 12:09:24 net packet injection: enabled
2019/11/05 12:09:24 net device setup: enabled
2019/11/05 12:09:24 concurrency sanitizer: enabled
2019/11/05 12:09:24 devlink PCI setup: PCI device 0000:00:10.0 is not available
2019/11/05 12:09:24 adding functions to KCSAN blacklist: '__hrtimer_run_queues' 'find_next_bit' 'ep_insert' 'ep_poll' 
syzkaller login: [   69.556865][ T7971] ==================================================================
[   69.565049][ T7971] BUG: KCSAN: data-race in tcp_add_backlog / tcp_recvmsg
[   69.572142][ T7971] 
[   69.574458][ T7971] write to 0xffff8881221949f8 of 8 bytes by interrupt on cpu 1:
[   69.582073][ T7971]  tcp_add_backlog+0x476/0xce0
[   69.586821][ T7971]  tcp_v4_rcv+0x1a70/0x1bd0
[   69.591304][ T7971]  ip_protocol_deliver_rcu+0x4d/0x420
[   69.596681][ T7971]  ip_local_deliver_finish+0x110/0x140
[   69.602121][ T7971]  ip_local_deliver+0x133/0x210
[   69.606951][ T7971]  ip_rcv_finish+0x121/0x160
[   69.611518][ T7971]  ip_rcv+0x18f/0x1a0
[   69.615483][ T7971]  __netif_receive_skb_one_core+0xa7/0xe0
[   69.621182][ T7971]  __netif_receive_skb+0x37/0xf0
[   69.626114][ T7971]  netif_receive_skb_internal+0x59/0x190
[   69.631731][ T7971]  napi_gro_receive+0x28f/0x330
[   69.636573][ T7971]  receive_buf+0x284/0x30b0
[   69.641052][ T7971]  virtnet_poll+0x436/0x7d0
[   69.645825][ T7971]  net_rx_action+0x3ae/0xa90
[   69.650398][ T7971]  __do_softirq+0x115/0x33f
[   69.654892][ T7971]  irq_exit+0xbb/0xe0
[   69.658856][ T7971]  do_IRQ+0xa6/0x180
[   69.662736][ T7971]  ret_from_intr+0x0/0x19
[   69.667045][ T7971]  native_safe_halt+0xe/0x10
[   69.671617][ T7971]  arch_cpu_idle+0x1f/0x30
[   69.676017][ T7971]  default_idle_call+0x1e/0x40
[   69.680760][ T7971]  do_idle+0x1af/0x280
[   69.684814][ T7971]  cpu_startup_entry+0x1b/0x20
[   69.689566][ T7971]  start_secondary+0x208/0x260
[   69.694312][ T7971]  secondary_startup_64+0xa4/0xb0
[   69.699305][ T7971] 
[   69.701617][ T7971] read to 0xffff8881221949f8 of 8 bytes by task 7971 on cpu 0:
[   69.709155][ T7971]  tcp_recvmsg+0x46e/0x1b40
[   69.713649][ T7971]  inet_recvmsg+0xbb/0x250
[   69.718048][ T7971]  sock_recvmsg+0x92/0xb0
[   69.722368][ T7971]  sock_read_iter+0x15f/0x1e0
[   69.727037][ T7971]  new_sync_read+0x389/0x4f0
[   69.731605][ T7971]  __vfs_read+0xb1/0xc0
[   69.735739][ T7971]  vfs_read+0x143/0x2c0
[   69.739882][ T7971]  ksys_read+0xd5/0x1b0
[   69.744017][ T7971]  __x64_sys_read+0x4c/0x60
[   69.748511][ T7971]  do_syscall_64+0xcc/0x370
[   69.752999][ T7971]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   69.758864][ T7971] 
[   69.761178][ T7971] Reported by Kernel Concurrency Sanitizer on:
[   69.767321][ T7971] CPU: 0 PID: 7971 Comm: syz-fuzzer Not tainted 5.4.0-rc6+ #0
[   69.774753][ T7971] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   69.784894][ T7971] ==================================================================
[   69.793063][ T7971] Kernel panic - not syncing: panic_on_warn set ...
[   69.799639][ T7971] CPU: 0 PID: 7971 Comm: syz-fuzzer Not tainted 5.4.0-rc6+ #0
[   69.807080][ T7971] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   69.817121][ T7971] Call Trace:
[   69.820403][ T7971]  dump_stack+0xf5/0x159
[   69.824628][ T7971]  panic+0x210/0x640
[   69.828506][ T7971]  ? vprintk_func+0x8d/0x140
[   69.833089][ T7971]  kcsan_report.cold+0xc/0xe
[   69.837666][ T7971]  kcsan_setup_watchpoint+0x3fe/0x410
[   69.843020][ T7971]  __tsan_read8+0x145/0x1f0
[   69.847506][ T7971]  tcp_recvmsg+0x46e/0x1b40
[   69.852007][ T7971]  inet_recvmsg+0xbb/0x250
[   69.856407][ T7971]  ? apparmor_socket_recvmsg+0x3b/0x50
[   69.861848][ T7971]  ? security_socket_recvmsg+0x92/0xb0
[   69.867288][ T7971]  ? inet_sendpage+0x100/0x100
[   69.872048][ T7971]  sock_recvmsg+0x92/0xb0
[   69.876367][ T7971]  sock_read_iter+0x15f/0x1e0
[   69.881120][ T7971]  new_sync_read+0x389/0x4f0
[   69.885699][ T7971]  __vfs_read+0xb1/0xc0
[   69.889860][ T7971]  vfs_read+0x143/0x2c0
[   69.894018][ T7971]  ksys_read+0xd5/0x1b0
[   69.898176][ T7971]  __x64_sys_read+0x4c/0x60
[   69.902671][ T7971]  do_syscall_64+0xcc/0x370
[   69.907174][ T7971]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   69.913059][ T7971] RIP: 0033:0x47c530
[   69.917033][ T7971] 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
[   69.936622][ T7971] RSP: 002b:000000c4204fb7d8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000
[   69.945124][ T7971] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   69.953098][ T7971] RDX: 0000000000001000 RSI: 000000c420320000 RDI: 0000000000000003
[   69.961055][ T7971] RBP: 000000c4204fb830 R08: 0000000000000000 R09: 0000000000000000
[   69.969006][ T7971] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000200
[   69.977924][ T7971] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff
[   69.987220][ T7971] Kernel Offset: disabled
[   69.991552][ T7971] Rebooting in 86400 seconds..