Warning: Permanently added '10.128.0.64' (ECDSA) to the list of known hosts.
2019/10/22 19:21:02 fuzzer started
2019/10/22 19:21:03 dialing manager at 10.128.0.105:33369
2019/10/22 19:21:03 syscalls: 2524
2019/10/22 19:21:03 code coverage: enabled
2019/10/22 19:21:03 comparison tracing: enabled
2019/10/22 19:21:03 extra coverage: extra coverage is not supported by the kernel
2019/10/22 19:21:03 setuid sandbox: enabled
2019/10/22 19:21:03 namespace sandbox: enabled
2019/10/22 19:21:03 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/22 19:21:03 fault injection: enabled
2019/10/22 19:21:03 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/22 19:21:03 net packet injection: enabled
2019/10/22 19:21:03 net device setup: enabled
2019/10/22 19:21:03 concurrency sanitizer: enabled
gin: [   49.574315][ T7235] ==================================================================
[   49.582442][ T7235] BUG: KCSAN: data-race in __tcp_select_window / tcp_add_backlog
[   49.590270][ T7235] 
[   49.592576][ T7235] write to 0xffff888123a70a2c of 4 bytes by interrupt on cpu 1:
[   49.600235][ T7235]  tcp_add_backlog+0x4a0/0xcc0
[   49.605036][ T7235]  tcp_v4_rcv+0x1a60/0x1bb0
[   49.609518][ T7235]  ip_protocol_deliver_rcu+0x4d/0x420
[   49.614869][ T7235]  ip_local_deliver_finish+0x110/0x140
[   49.620301][ T7235]  ip_local_deliver+0x133/0x210
[   49.625136][ T7235]  ip_rcv_finish+0x121/0x160
[   49.629706][ T7235]  ip_rcv+0x18f/0x1a0
[   49.633677][ T7235]  __netif_receive_skb_one_core+0xa7/0xe0
[   49.639377][ T7235]  __netif_receive_skb+0x37/0xf0
[   49.644294][ T7235]  netif_receive_skb_internal+0x59/0x190
[   49.649913][ T7235]  napi_gro_receive+0x28f/0x330
[   49.655179][ T7235]  receive_buf+0x284/0x30b0
[   49.659655][ T7235]  virtnet_poll+0x436/0x7d0
[   49.664132][ T7235]  net_rx_action+0x3ae/0xa90
[   49.668691][ T7235] 
[   49.670996][ T7235] read to 0xffff888123a70a2c of 4 bytes by task 7235 on cpu 0:
[   49.678511][ T7235]  __tcp_select_window+0x6b/0x4d0
[   49.683519][ T7235]  __tcp_transmit_skb+0x700/0x1d60
[   49.688605][ T7235]  __tcp_send_ack+0x246/0x300
[   49.693257][ T7235]  tcp_send_ack+0x34/0x40
[   49.697570][ T7235]  tcp_cleanup_rbuf+0x130/0x360
[   49.702401][ T7235]  tcp_recvmsg+0x633/0x1a30
[   49.706877][ T7235]  inet_recvmsg+0xbb/0x250
[   49.711269][ T7235]  sock_recvmsg+0x92/0xb0
[   49.715573][ T7235]  sock_read_iter+0x15f/0x1e0
[   49.720225][ T7235]  new_sync_read+0x389/0x4f0
[   49.724797][ T7235]  __vfs_read+0xb1/0xc0
[   49.728928][ T7235]  vfs_read+0x143/0x2c0
[   49.733056][ T7235]  ksys_read+0xd5/0x1b0
[   49.737352][ T7235] 
[   49.739654][ T7235] Reported by Kernel Concurrency Sanitizer on:
[   49.745792][ T7235] CPU: 0 PID: 7235 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   49.753216][ T7235] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   49.763241][ T7235] ==================================================================
[   49.771274][ T7235] Kernel panic - not syncing: panic_on_warn set ...
[   49.777845][ T7235] CPU: 0 PID: 7235 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   49.785268][ T7235] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   49.795294][ T7235] Call Trace:
[   49.798561][ T7235]  dump_stack+0xf5/0x159
[   49.802782][ T7235]  panic+0x210/0x640
[   49.806655][ T7235]  ? sock_read_iter+0x15f/0x1e0
[   49.811492][ T7235]  ? vprintk_func+0x8d/0x140
[   49.816158][ T7235]  kcsan_report.cold+0xc/0x10
[   49.820813][ T7235]  __kcsan_setup_watchpoint+0x32e/0x4a0
[   49.826340][ T7235]  __tsan_read4+0x2c/0x30
[   49.830669][ T7235]  __tcp_select_window+0x6b/0x4d0
[   49.835685][ T7235]  __tcp_transmit_skb+0x700/0x1d60
[   49.840782][ T7235]  __tcp_send_ack+0x246/0x300
[   49.845439][ T7235]  tcp_send_ack+0x34/0x40
[   49.849746][ T7235]  tcp_cleanup_rbuf+0x130/0x360
[   49.854577][ T7235]  tcp_recvmsg+0x633/0x1a30
[   49.859078][ T7235]  inet_recvmsg+0xbb/0x250
[   49.863485][ T7235]  ? __tsan_read8+0x2c/0x30
[   49.867966][ T7235]  ? inet_sendpage+0x100/0x100
[   49.872720][ T7235]  sock_recvmsg+0x92/0xb0
[   49.877032][ T7235]  sock_read_iter+0x15f/0x1e0
[   49.881694][ T7235]  new_sync_read+0x389/0x4f0
[   49.886450][ T7235]  __vfs_read+0xb1/0xc0
[   49.890586][ T7235]  vfs_read+0x143/0x2c0
[   49.894721][ T7235]  ksys_read+0xd5/0x1b0
[   49.898857][ T7235]  __x64_sys_read+0x4c/0x60
[   49.903342][ T7235]  do_syscall_64+0xcc/0x370
[   49.907824][ T7235]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   49.913692][ T7235] RIP: 0033:0x47c530
[   49.917569][ T7235] 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
[   49.937162][ T7235] RSP: 002b:000000c42014b7d8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000
[   49.945548][ T7235] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   49.953509][ T7235] RDX: 0000000000001000 RSI: 000000c4203b0000 RDI: 0000000000000003
[   49.961456][ T7235] RBP: 000000c42014b830 R08: 0000000000000000 R09: 0000000000000000
[   49.969404][ T7235] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000003
[   49.977368][ T7235] R13: 000000c420020b78 R14: 0000000000000002 R15: ffffffffffffffff
[   49.986065][ T7235] Kernel Offset: disabled
[   49.990394][ T7235] Rebooting in 86400 seconds..