Warning: Permanently added '10.128.1.9' (ECDSA) to the list of known hosts.
2019/10/22 17:07:02 fuzzer started
2019/10/22 17:07:03 dialing manager at 10.128.0.105:33369
2019/10/22 17:07:03 syscalls: 2524
2019/10/22 17:07:03 code coverage: enabled
2019/10/22 17:07:03 comparison tracing: enabled
2019/10/22 17:07:03 extra coverage: extra coverage is not supported by the kernel
2019/10/22 17:07:03 setuid sandbox: enabled
2019/10/22 17:07:03 namespace sandbox: enabled
2019/10/22 17:07:03 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/22 17:07:03 fault injection: enabled
2019/10/22 17:07:03 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/22 17:07:03 net packet injection: enabled
2019/10/22 17:07:03 net device setup: enabled
2019/10/22 17:07:03 concurrency sanitizer: enabled
syzkaller login: [   46.187184][ T7152] ==================================================================
[   46.195491][ T7152] BUG: KCSAN: data-race in tcp_add_backlog / tcp_grow_window.isra.0
[   46.203450][ T7152] 
[   46.205760][ T7152] write to 0xffff8881235752ec of 4 bytes by interrupt on cpu 1:
[   46.213370][ T7152]  tcp_add_backlog+0x4a0/0xcc0
[   46.218127][ T7152]  tcp_v4_rcv+0x1a60/0x1bb0
[   46.222620][ T7152]  ip_protocol_deliver_rcu+0x4d/0x420
[   46.227976][ T7152]  ip_local_deliver_finish+0x110/0x140
[   46.233410][ T7152]  ip_local_deliver+0x133/0x210
[   46.238234][ T7152]  ip_rcv_finish+0x121/0x160
[   46.242834][ T7152]  ip_rcv+0x18f/0x1a0
[   46.246807][ T7152]  __netif_receive_skb_one_core+0xa7/0xe0
[   46.252502][ T7152]  __netif_receive_skb+0x37/0xf0
[   46.257416][ T7152]  netif_receive_skb_internal+0x59/0x190
[   46.263111][ T7152]  napi_gro_receive+0x28f/0x330
[   46.267952][ T7152]  receive_buf+0x284/0x30b0
[   46.272724][ T7152]  virtnet_poll+0x436/0x7d0
[   46.277349][ T7152]  net_rx_action+0x3ae/0xa90
[   46.281948][ T7152] 
[   46.284264][ T7152] read to 0xffff8881235752ec of 4 bytes by task 7152 on cpu 0:
[   46.291791][ T7152]  tcp_grow_window.isra.0+0x6b/0x480
[   46.297054][ T7152]  tcp_event_data_recv+0x68f/0x990
[   46.302151][ T7152]  tcp_rcv_established+0xbfe/0xf50
[   46.307239][ T7152]  tcp_v4_do_rcv+0x381/0x4e0
[   46.311825][ T7152]  __release_sock+0x135/0x1e0
[   46.316499][ T7152]  release_sock+0x61/0x160
[   46.320905][ T7152]  tcp_recvmsg+0x63b/0x1a30
[   46.325387][ T7152]  inet_recvmsg+0xbb/0x250
[   46.329798][ T7152]  sock_recvmsg+0x92/0xb0
[   46.334104][ T7152]  sock_read_iter+0x15f/0x1e0
[   46.338769][ T7152]  new_sync_read+0x389/0x4f0
[   46.343334][ T7152]  __vfs_read+0xb1/0xc0
[   46.347465][ T7152]  vfs_read+0x143/0x2c0
[   46.351599][ T7152] 
[   46.353900][ T7152] Reported by Kernel Concurrency Sanitizer on:
[   46.360052][ T7152] CPU: 0 PID: 7152 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   46.367500][ T7152] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   46.377545][ T7152] ==================================================================
[   46.385612][ T7152] Kernel panic - not syncing: panic_on_warn set ...
[   46.392303][ T7152] CPU: 0 PID: 7152 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   46.399758][ T7152] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   46.409795][ T7152] Call Trace:
[   46.413071][ T7152]  dump_stack+0xf5/0x159
[   46.417292][ T7152]  panic+0x210/0x640
[   46.421527][ T7152]  ? sock_recvmsg+0x92/0xb0
[   46.426008][ T7152]  ? vprintk_func+0x8d/0x140
[   46.430593][ T7152]  kcsan_report.cold+0xc/0x10
[   46.435249][ T7152]  __kcsan_setup_watchpoint+0x32e/0x4a0
[   46.440771][ T7152]  __tsan_read4+0x2c/0x30
[   46.445095][ T7152]  tcp_grow_window.isra.0+0x6b/0x480
[   46.450371][ T7152]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   46.455981][ T7152]  tcp_event_data_recv+0x68f/0x990
[   46.461074][ T7152]  tcp_rcv_established+0xbfe/0xf50
[   46.466166][ T7152]  ? ipv4_dst_check+0xc6/0xf0
[   46.470823][ T7152]  tcp_v4_do_rcv+0x381/0x4e0
[   46.475392][ T7152]  __release_sock+0x135/0x1e0
[   46.480051][ T7152]  release_sock+0x61/0x160
[   46.484474][ T7152]  tcp_recvmsg+0x63b/0x1a30
[   46.488980][ T7152]  inet_recvmsg+0xbb/0x250
[   46.493383][ T7152]  ? __tsan_read8+0x2c/0x30
[   46.497871][ T7152]  ? inet_sendpage+0x100/0x100
[   46.502699][ T7152]  sock_recvmsg+0x92/0xb0
[   46.507125][ T7152]  sock_read_iter+0x15f/0x1e0
[   46.511810][ T7152]  new_sync_read+0x389/0x4f0
[   46.516388][ T7152]  __vfs_read+0xb1/0xc0
[   46.520523][ T7152]  vfs_read+0x143/0x2c0
[   46.524660][ T7152]  ksys_read+0xd5/0x1b0
[   46.528797][ T7152]  __x64_sys_read+0x4c/0x60
[   46.533281][ T7152]  do_syscall_64+0xcc/0x370
[   46.537766][ T7152]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   46.543653][ T7152] RIP: 0033:0x47c530
[   46.547530][ T7152] 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
[   46.567122][ T7152] RSP: 002b:000000c4202e97d8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000
[   46.575523][ T7152] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   46.583481][ T7152] RDX: 0000000000001000 RSI: 000000c420378000 RDI: 0000000000000003
[   46.591584][ T7152] RBP: 000000c4202e9830 R08: 0000000000000000 R09: 0000000000000000
[   46.599557][ T7152] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000008
[   46.607513][ T7152] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff
[   46.617064][ T7152] Kernel Offset: disabled
[   46.621397][ T7152] Rebooting in 86400 seconds..