Warning: Permanently added '10.128.10.48' (ECDSA) to the list of known hosts.
2019/10/23 14:19:59 fuzzer started
2019/10/23 14:20:00 dialing manager at 10.128.0.105:40369
2019/10/23 14:20:00 syscalls: 2524
2019/10/23 14:20:00 code coverage: enabled
2019/10/23 14:20:00 comparison tracing: enabled
2019/10/23 14:20:00 extra coverage: extra coverage is not supported by the kernel
2019/10/23 14:20:00 setuid sandbox: enabled
2019/10/23 14:20:00 namespace sandbox: enabled
2019/10/23 14:20:00 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/23 14:20:00 fault injection: enabled
2019/10/23 14:20:00 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/23 14:20:00 net packet injection: enabled
2019/10/23 14:20:00 net device setup: enabled
2019/10/23 14:20:00 concurrency sanitizer: enabled
2019/10/23 14:20:01 adding functions to KCSAN blacklist: 'taskstats_exit' 'generic_write_end' 'common_perm_cond' 'tomoyo_supervisor' 'generic_fillattr' '__hrtimer_run_queues' 
syzkaller login: [   46.964452][ T7317] ==================================================================
[   46.972589][ T7317] BUG: KCSAN: data-race in tcp_add_backlog / tcp_grow_window.isra.0
[   46.980550][ T7317] 
[   46.982887][ T7317] write to 0xffff888122d132ec of 4 bytes by interrupt on cpu 0:
[   46.990498][ T7317]  tcp_add_backlog+0x4a0/0xcc0
[   46.995248][ T7317]  tcp_v4_rcv+0x1a60/0x1bb0
[   47.000694][ T7317]  ip_protocol_deliver_rcu+0x4d/0x420
[   47.006037][ T7317]  ip_local_deliver_finish+0x110/0x140
[   47.011470][ T7317]  ip_local_deliver+0x133/0x210
[   47.016291][ T7317]  ip_rcv_finish+0x121/0x160
[   47.020850][ T7317]  ip_rcv+0x18f/0x1a0
[   47.024819][ T7317]  __netif_receive_skb_one_core+0xa7/0xe0
[   47.030514][ T7317]  __netif_receive_skb+0x37/0xf0
[   47.035439][ T7317]  netif_receive_skb_internal+0x59/0x190
[   47.041048][ T7317]  napi_gro_receive+0x28f/0x330
[   47.045891][ T7317]  receive_buf+0x284/0x30b0
[   47.050372][ T7317]  virtnet_poll+0x436/0x7d0
[   47.054858][ T7317]  net_rx_action+0x3ae/0xa90
[   47.059419][ T7317] 
[   47.061726][ T7317] read to 0xffff888122d132ec of 4 bytes by task 7317 on cpu 1:
[   47.069252][ T7317]  tcp_grow_window.isra.0+0x6b/0x480
[   47.074509][ T7317]  tcp_event_data_recv+0x68f/0x990
[   47.079601][ T7317]  tcp_rcv_established+0xbfe/0xf50
[   47.084688][ T7317]  tcp_v4_do_rcv+0x381/0x4e0
[   47.089252][ T7317]  __release_sock+0x135/0x1e0
[   47.093903][ T7317]  release_sock+0x61/0x160
[   47.098300][ T7317]  tcp_recvmsg+0x63b/0x1a30
[   47.102775][ T7317]  inet_recvmsg+0xbb/0x250
[   47.107174][ T7317]  sock_recvmsg+0x92/0xb0
[   47.111477][ T7317]  sock_read_iter+0x15f/0x1e0
[   47.116134][ T7317]  new_sync_read+0x389/0x4f0
[   47.120706][ T7317]  __vfs_read+0xb1/0xc0
[   47.124833][ T7317]  vfs_read+0x143/0x2c0
[   47.128963][ T7317] 
[   47.131265][ T7317] Reported by Kernel Concurrency Sanitizer on:
[   47.137400][ T7317] CPU: 1 PID: 7317 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   47.144826][ T7317] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   47.154865][ T7317] ==================================================================
[   47.163107][ T7317] Kernel panic - not syncing: panic_on_warn set ...
[   47.169712][ T7317] CPU: 1 PID: 7317 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   47.177138][ T7317] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   47.187169][ T7317] Call Trace:
[   47.190444][ T7317]  dump_stack+0xf5/0x159
[   47.194662][ T7317]  panic+0x210/0x640
[   47.198533][ T7317]  ? sock_recvmsg+0x92/0xb0
[   47.203013][ T7317]  ? vprintk_func+0x8d/0x140
[   47.207582][ T7317]  kcsan_report.cold+0xc/0x10
[   47.212235][ T7317]  __kcsan_setup_watchpoint+0x32e/0x4a0
[   47.217756][ T7317]  __tsan_read4+0x2c/0x30
[   47.222069][ T7317]  tcp_grow_window.isra.0+0x6b/0x480
[   47.227336][ T7317]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   47.232953][ T7317]  tcp_event_data_recv+0x68f/0x990
[   47.238041][ T7317]  tcp_rcv_established+0xbfe/0xf50
[   47.243747][ T7317]  ? ipv4_dst_check+0xc6/0xf0
[   47.248416][ T7317]  tcp_v4_do_rcv+0x381/0x4e0
[   47.252989][ T7317]  __release_sock+0x135/0x1e0
[   47.257653][ T7317]  release_sock+0x61/0x160
[   47.262054][ T7317]  tcp_recvmsg+0x63b/0x1a30
[   47.266543][ T7317]  inet_recvmsg+0xbb/0x250
[   47.270941][ T7317]  ? __tsan_read8+0x2c/0x30
[   47.275425][ T7317]  ? inet_sendpage+0x100/0x100
[   47.280169][ T7317]  sock_recvmsg+0x92/0xb0
[   47.284483][ T7317]  sock_read_iter+0x15f/0x1e0
[   47.289149][ T7317]  new_sync_read+0x389/0x4f0
[   47.293741][ T7317]  __vfs_read+0xb1/0xc0
[   47.297884][ T7317]  vfs_read+0x143/0x2c0
[   47.302071][ T7317]  ksys_read+0xd5/0x1b0
[   47.306214][ T7317]  __x64_sys_read+0x4c/0x60
[   47.310697][ T7317]  do_syscall_64+0xcc/0x370
[   47.315179][ T7317]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   47.321056][ T7317] RIP: 0033:0x47c530
[   47.324931][ T7317] 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
[   47.344509][ T7317] RSP: 002b:000000c4205417d8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000
[   47.352894][ T7317] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   47.360841][ T7317] RDX: 0000000000001000 RSI: 000000c420054000 RDI: 0000000000000003
[   47.368786][ T7317] RBP: 000000c420541830 R08: 0000000000000000 R09: 0000000000000000
[   47.376739][ T7317] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000200
[   47.384686][ T7317] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff
[   47.393962][ T7317] Kernel Offset: disabled
[   47.398281][ T7317] Rebooting in 86400 seconds..