Warning: Permanently added '10.128.0.154' (ECDSA) to the list of known hosts.
2019/10/22 15:04:26 fuzzer started
2019/10/22 15:04:28 dialing manager at 10.128.0.105:33369
2019/10/22 15:04:28 syscalls: 2524
2019/10/22 15:04:28 code coverage: enabled
2019/10/22 15:04:28 comparison tracing: enabled
2019/10/22 15:04:28 extra coverage: extra coverage is not supported by the kernel
2019/10/22 15:04:28 setuid sandbox: enabled
2019/10/22 15:04:28 namespace sandbox: enabled
2019/10/22 15:04:28 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/22 15:04:28 fault injection: enabled
2019/10/22 15:04:28 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/22 15:04:28 net packet injection: enabled
2019/10/22 15:04:28 net device setup: enabled
2019/10/22 15:04:28 concurrency sanitizer: enabled
[   55.080836][ T7203] ==================================================================
[   55.088959][ T7203] BUG: KCSAN: data-race in tcp_add_backlog / tcp_grow_window.isra.0
[   55.096905][ T7203] 
[   55.099225][ T7203] write to 0xffff8881262249ec of 4 bytes by interrupt on cpu 0:
[   55.106831][ T7203]  tcp_add_backlog+0x4a0/0xcc0
[   55.111573][ T7203]  tcp_v4_rcv+0x1a60/0x1bb0
[   55.116054][ T7203]  ip_protocol_deliver_rcu+0x4d/0x420
[   55.121402][ T7203]  ip_local_deliver_finish+0x110/0x140
[   55.126847][ T7203]  ip_local_deliver+0x133/0x210
[   55.131674][ T7203]  ip_rcv_finish+0x121/0x160
[   55.136241][ T7203]  ip_rcv+0x18f/0x1a0
[   55.140214][ T7203]  __netif_receive_skb_one_core+0xa7/0xe0
[   55.145912][ T7203]  __netif_receive_skb+0x37/0xf0
[   55.150826][ T7203]  netif_receive_skb_internal+0x59/0x190
[   55.156442][ T7203]  napi_gro_receive+0x28f/0x330
[   55.161279][ T7203]  receive_buf+0x284/0x30b0
[   55.165776][ T7203]  virtnet_poll+0x436/0x7d0
[   55.170256][ T7203]  net_rx_action+0x3ae/0xa90
[   55.174823][ T7203] 
[   55.177129][ T7203] read to 0xffff8881262249ec of 4 bytes by task 7203 on cpu 1:
[   55.184648][ T7203]  tcp_grow_window.isra.0+0x6b/0x480
[   55.190186][ T7203]  tcp_event_data_recv+0x68f/0x990
[   55.195309][ T7203]  tcp_rcv_established+0xbfe/0xf50
[   55.200508][ T7203]  tcp_v4_do_rcv+0x381/0x4e0
[   55.205095][ T7203]  __release_sock+0x135/0x1e0
[   55.209848][ T7203]  release_sock+0x61/0x160
[   55.214263][ T7203]  tcp_recvmsg+0x63b/0x1a30
[   55.218746][ T7203]  inet_recvmsg+0xbb/0x250
[   55.223152][ T7203]  sock_recvmsg+0x92/0xb0
[   55.227457][ T7203]  sock_read_iter+0x15f/0x1e0
[   55.232110][ T7203]  new_sync_read+0x389/0x4f0
[   55.236688][ T7203]  __vfs_read+0xb1/0xc0
[   55.240829][ T7203]  vfs_read+0x143/0x2c0
[   55.244968][ T7203] 
[   55.247268][ T7203] Reported by Kernel Concurrency Sanitizer on:
[   55.253396][ T7203] CPU: 1 PID: 7203 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   55.260820][ T7203] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   55.270847][ T7203] ==================================================================
[   55.278884][ T7203] Kernel panic - not syncing: panic_on_warn set ...
[   55.285445][ T7203] CPU: 1 PID: 7203 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   55.292872][ T7203] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   55.302902][ T7203] Call Trace:
[   55.306181][ T7203]  dump_stack+0xf5/0x159
[   55.310414][ T7203]  panic+0x210/0x640
[   55.314299][ T7203]  ? sock_recvmsg+0x92/0xb0
[   55.318792][ T7203]  ? vprintk_func+0x8d/0x140
[   55.323471][ T7203]  kcsan_report.cold+0xc/0x10
[   55.328142][ T7203]  __kcsan_setup_watchpoint+0x32e/0x4a0
[   55.333665][ T7203]  __tsan_read4+0x2c/0x30
[   55.337970][ T7203]  tcp_grow_window.isra.0+0x6b/0x480
[   55.343234][ T7203]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   55.348860][ T7203]  tcp_event_data_recv+0x68f/0x990
[   55.353951][ T7203]  tcp_rcv_established+0xbfe/0xf50
[   55.359040][ T7203]  ? ipv4_dst_check+0xc6/0xf0
[   55.363709][ T7203]  tcp_v4_do_rcv+0x381/0x4e0
[   55.368288][ T7203]  __release_sock+0x135/0x1e0
[   55.372943][ T7203]  release_sock+0x61/0x160
[   55.377348][ T7203]  tcp_recvmsg+0x63b/0x1a30
[   55.381831][ T7203]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   55.387529][ T7203]  inet_recvmsg+0xbb/0x250
[   55.391918][ T7203]  ? __tsan_read8+0x2c/0x30
[   55.397706][ T7203]  ? inet_sendpage+0x100/0x100
[   55.402446][ T7203]  sock_recvmsg+0x92/0xb0
[   55.406754][ T7203]  sock_read_iter+0x15f/0x1e0
[   55.411420][ T7203]  new_sync_read+0x389/0x4f0
[   55.416004][ T7203]  __vfs_read+0xb1/0xc0
[   55.420148][ T7203]  vfs_read+0x143/0x2c0
[   55.424281][ T7203]  ksys_read+0xd5/0x1b0
[   55.428416][ T7203]  __x64_sys_read+0x4c/0x60
[   55.432902][ T7203]  do_syscall_64+0xcc/0x370
[   55.438080][ T7203]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   55.443946][ T7203] RIP: 0033:0x47c530
[   55.447821][ T7203] 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
[   55.467415][ T7203] RSP: 002b:000000c42021f810 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
[   55.475812][ T7203] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   55.483761][ T7203] RDX: 0000000000001000 RSI: 000000c4200c6000 RDI: 0000000000000003
[   55.491707][ T7203] RBP: 000000c42021f868 R08: 0000000000000000 R09: 0000000000000000
[   55.499739][ T7203] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005
[   55.507696][ T7203] R13: 000000c420143240 R14: 0000000000000002 R15: ffffffffffffffff
[   55.517007][ T7203] Kernel Offset: disabled
[   55.521359][ T7203] Rebooting in 86400 seconds..