Warning: Permanently added '10.128.1.40' (ECDSA) to the list of known hosts.
2019/11/20 22:09:28 fuzzer started
2019/11/20 22:09:29 dialing manager at 10.128.0.105:37585
2019/11/20 22:09:29 syscalls: 2566
2019/11/20 22:09:29 code coverage: enabled
2019/11/20 22:09:29 comparison tracing: enabled
2019/11/20 22:09:29 extra coverage: extra coverage is not supported by the kernel
2019/11/20 22:09:29 setuid sandbox: enabled
2019/11/20 22:09:29 namespace sandbox: enabled
2019/11/20 22:09:29 Android sandbox: /sys/fs/selinux/policy does not exist
2019/11/20 22:09:29 fault injection: enabled
2019/11/20 22:09:29 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/11/20 22:09:29 net packet injection: enabled
2019/11/20 22:09:29 net device setup: enabled
2019/11/20 22:09:29 concurrency sanitizer: enabled
2019/11/20 22:09:29 devlink PCI setup: PCI device 0000:00:10.0 is not available
2019/11/20 22:09:29 adding functions to KCSAN blacklist: '__hrtimer_run_queues' 'rcu_gp_fqs_check_wake' 
syzkaller login: [   54.718640][ T7553] ==================================================================
[   54.726824][ T7553] BUG: KCSAN: data-race in tcp_add_backlog / tcp_recvmsg
[   54.733874][ T7553] 
[   54.736187][ T7553] write to 0xffff888121671338 of 8 bytes by interrupt on cpu 1:
[   54.743795][ T7553]  tcp_add_backlog+0x476/0xce0
[   54.748536][ T7553]  tcp_v4_rcv+0x1a70/0x1bd0
[   54.753038][ T7553]  ip_protocol_deliver_rcu+0x4d/0x420
[   54.758391][ T7553]  ip_local_deliver_finish+0x110/0x140
[   54.763826][ T7553]  ip_local_deliver+0x133/0x210
[   54.768659][ T7553]  ip_rcv_finish+0x121/0x160
[   54.773234][ T7553]  ip_rcv+0x18f/0x1a0
[   54.777193][ T7553]  __netif_receive_skb_one_core+0xa7/0xe0
[   54.782887][ T7553]  __netif_receive_skb+0x37/0xf0
[   54.787800][ T7553]  netif_receive_skb_internal+0x59/0x190
[   54.793418][ T7553]  napi_gro_receive+0x28f/0x330
[   54.798276][ T7553]  receive_buf+0x284/0x30b0
[   54.802766][ T7553]  virtnet_poll+0x436/0x7d0
[   54.807244][ T7553]  net_rx_action+0x3ae/0xa90
[   54.811812][ T7553]  __do_softirq+0x115/0x33f
[   54.816297][ T7553]  irq_exit+0xbb/0xe0
[   54.820253][ T7553]  do_IRQ+0x81/0x130
[   54.824133][ T7553]  ret_from_intr+0x0/0x19
[   54.828435][ T7553]  native_safe_halt+0xe/0x10
[   54.833002][ T7553]  arch_cpu_idle+0xa/0x10
[   54.837333][ T7553]  default_idle_call+0x1e/0x40
[   54.842073][ T7553]  do_idle+0x1af/0x280
[   54.846120][ T7553]  cpu_startup_entry+0x1b/0x20
[   54.850859][ T7553]  start_secondary+0x168/0x1b0
[   54.855613][ T7553]  secondary_startup_64+0xa4/0xb0
[   54.860614][ T7553] 
[   54.862931][ T7553] read to 0xffff888121671338 of 8 bytes by task 7553 on cpu 0:
[   54.870451][ T7553]  tcp_recvmsg+0x46e/0x1b40
[   54.874933][ T7553]  inet_recvmsg+0xbb/0x250
[   54.879326][ T7553]  sock_recvmsg+0x92/0xb0
[   54.883630][ T7553]  sock_read_iter+0x15f/0x1e0
[   54.888283][ T7553]  new_sync_read+0x389/0x4f0
[   54.892848][ T7553]  __vfs_read+0xb1/0xc0
[   54.896990][ T7553]  vfs_read+0x143/0x2c0
[   54.901124][ T7553]  ksys_read+0xd5/0x1b0
[   54.905260][ T7553]  __x64_sys_read+0x4c/0x60
[   54.909739][ T7553]  do_syscall_64+0xcc/0x370
[   54.914233][ T7553]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   54.920118][ T7553] 
[   54.922423][ T7553] Reported by Kernel Concurrency Sanitizer on:
[   54.928553][ T7553] CPU: 0 PID: 7553 Comm: syz-fuzzer Not tainted 5.4.0-rc7+ #0
[   54.935990][ T7553] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   54.946020][ T7553] ==================================================================
[   54.954063][ T7553] Kernel panic - not syncing: panic_on_warn set ...
[   54.960639][ T7553] CPU: 0 PID: 7553 Comm: syz-fuzzer Not tainted 5.4.0-rc7+ #0
[   54.968171][ T7553] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   54.978202][ T7553] Call Trace:
[   54.981485][ T7553]  dump_stack+0x11d/0x181
[   54.985796][ T7553]  panic+0x210/0x640
[   54.989673][ T7553]  ? vprintk_func+0x8d/0x140
[   54.994246][ T7553]  kcsan_report.cold+0xc/0xd
[   54.998832][ T7553]  kcsan_setup_watchpoint+0x3fe/0x460
[   55.004199][ T7553]  __tsan_read8+0xc6/0x100
[   55.008598][ T7553]  tcp_recvmsg+0x46e/0x1b40
[   55.013092][ T7553]  inet_recvmsg+0xbb/0x250
[   55.017486][ T7553]  ? apparmor_socket_recvmsg+0x3b/0x50
[   55.022935][ T7553]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[   55.029153][ T7553]  ? security_socket_recvmsg+0x92/0xb0
[   55.034594][ T7553]  ? inet_sendpage+0x100/0x100
[   55.040319][ T7553]  sock_recvmsg+0x92/0xb0
[   55.044638][ T7553]  sock_read_iter+0x15f/0x1e0
[   55.049326][ T7553]  new_sync_read+0x389/0x4f0
[   55.053909][ T7553]  __vfs_read+0xb1/0xc0
[   55.058055][ T7553]  vfs_read+0x143/0x2c0
[   55.062285][ T7553]  ksys_read+0xd5/0x1b0
[   55.066456][ T7553]  __x64_sys_read+0x4c/0x60
[   55.070945][ T7553]  do_syscall_64+0xcc/0x370
[   55.075521][ T7553]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   55.081408][ T7553] RIP: 0033:0x47c530
[   55.085290][ T7553] 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
[   55.104893][ T7553] RSP: 002b:000000c42032b810 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
[   55.113298][ T7553] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   55.121258][ T7553] RDX: 0000000000001000 RSI: 000000c420356000 RDI: 0000000000000003
[   55.129254][ T7553] RBP: 000000c42032b868 R08: 0000000000000000 R09: 0000000000000000
[   55.137361][ T7553] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000008
[   55.145325][ T7553] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff
[   55.154916][ T7553] Kernel Offset: disabled
[   55.159301][ T7553] Rebooting in 86400 seconds..