Warning: Permanently added '10.128.15.213' (ECDSA) to the list of known hosts.
2019/12/06 10:41:27 fuzzer started
2019/12/06 10:41:29 dialing manager at 10.128.0.105:36601
2019/12/06 10:41:29 syscalls: 2684
2019/12/06 10:41:29 code coverage: enabled
2019/12/06 10:41:29 comparison tracing: enabled
2019/12/06 10:41:29 extra coverage: extra coverage is not supported by the kernel
2019/12/06 10:41:29 setuid sandbox: enabled
2019/12/06 10:41:29 namespace sandbox: enabled
2019/12/06 10:41:29 Android sandbox: /sys/fs/selinux/policy does not exist
2019/12/06 10:41:29 fault injection: enabled
2019/12/06 10:41:29 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/12/06 10:41:29 net packet injection: enabled
2019/12/06 10:41:29 net device setup: enabled
2019/12/06 10:41:29 concurrency sanitizer: enabled
2019/12/06 10:41:29 devlink PCI setup: PCI device 0000:00:10.0 is not available
2019/12/06 10:41:29 adding functions to KCSAN blacklist: '__hrtimer_run_queues' 
syzkaller login: [   63.526770][ T7580] ==================================================================
[   63.535182][ T7580] BUG: KCSAN: data-race in tcp_add_backlog / tcp_recvmsg
[   63.542198][ T7580] 
[   63.544577][ T7580] write to 0xffff8881260689f8 of 8 bytes by interrupt on cpu 0:
[   63.552196][ T7580]  tcp_add_backlog+0x476/0xce0
[   63.556941][ T7580]  tcp_v4_rcv+0x1a70/0x1bd0
[   63.561454][ T7580]  ip_protocol_deliver_rcu+0x4d/0x420
[   63.566810][ T7580]  ip_local_deliver_finish+0x110/0x140
[   63.572267][ T7580]  ip_local_deliver+0x133/0x210
[   63.577116][ T7580]  ip_rcv_finish+0x121/0x160
[   63.581695][ T7580]  ip_rcv+0x18f/0x1a0
[   63.585659][ T7580]  __netif_receive_skb_one_core+0xa7/0xe0
[   63.591382][ T7580]  __netif_receive_skb+0x37/0xf0
[   63.596300][ T7580]  netif_receive_skb_internal+0x59/0x190
[   63.601924][ T7580]  napi_gro_receive+0x28f/0x330
[   63.606771][ T7580]  receive_buf+0x284/0x30b0
[   63.611277][ T7580]  virtnet_poll+0x436/0x7d0
[   63.615775][ T7580]  net_rx_action+0x3ae/0xa90
[   63.620426][ T7580]  __do_softirq+0x115/0x33f
[   63.625153][ T7580]  run_ksoftirqd+0x46/0x60
[   63.629571][ T7580]  smpboot_thread_fn+0x37d/0x4a0
[   63.634499][ T7580]  kthread+0x1d4/0x200
[   63.638558][ T7580]  ret_from_fork+0x1f/0x30
[   63.642971][ T7580] 
[   63.645302][ T7580] read to 0xffff8881260689f8 of 8 bytes by task 7580 on cpu 1:
[   63.652837][ T7580]  tcp_recvmsg+0x46e/0x1b40
[   63.657343][ T7580]  inet_recvmsg+0xbb/0x250
[   63.661744][ T7580]  sock_recvmsg+0x92/0xb0
[   63.666068][ T7580]  sock_read_iter+0x15f/0x1e0
[   63.670763][ T7580]  new_sync_read+0x389/0x4f0
[   63.675333][ T7580]  __vfs_read+0xb1/0xc0
[   63.679481][ T7580]  vfs_read+0x143/0x2c0
[   63.683637][ T7580]  ksys_read+0xd5/0x1b0
[   63.687778][ T7580]  __x64_sys_read+0x4c/0x60
[   63.692371][ T7580]  do_syscall_64+0xcc/0x370
[   63.696868][ T7580]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   63.703175][ T7580] 
[   63.705489][ T7580] Reported by Kernel Concurrency Sanitizer on:
[   63.711819][ T7580] CPU: 1 PID: 7580 Comm: syz-fuzzer Not tainted 5.4.0-syzkaller #0
[   63.719783][ T7580] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   63.729829][ T7580] ==================================================================
[   63.737893][ T7580] Kernel panic - not syncing: panic_on_warn set ...
[   63.744575][ T7580] CPU: 1 PID: 7580 Comm: syz-fuzzer Not tainted 5.4.0-syzkaller #0
[   63.752543][ T7580] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   63.762643][ T7580] Call Trace:
[   63.765940][ T7580]  dump_stack+0x11d/0x181
[   63.770276][ T7580]  panic+0x210/0x640
[   63.774183][ T7580]  ? vprintk_func+0x8d/0x140
[   63.778775][ T7580]  kcsan_report.cold+0xc/0xd
[   63.783795][ T7580]  kcsan_setup_watchpoint+0x3fe/0x460
[   63.789177][ T7580]  __tsan_read8+0xc6/0x100
[   63.793615][ T7580]  tcp_recvmsg+0x46e/0x1b40
[   63.798130][ T7580]  inet_recvmsg+0xbb/0x250
[   63.802595][ T7580]  ? apparmor_socket_recvmsg+0x3b/0x50
[   63.808178][ T7580]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[   63.814567][ T7580]  ? security_socket_recvmsg+0x92/0xb0
[   63.820037][ T7580]  ? inet_sendpage+0x100/0x100
[   63.824830][ T7580]  sock_recvmsg+0x92/0xb0
[   63.829151][ T7580]  sock_read_iter+0x15f/0x1e0
[   63.833945][ T7580]  new_sync_read+0x389/0x4f0
[   63.838544][ T7580]  __vfs_read+0xb1/0xc0
[   63.842715][ T7580]  vfs_read+0x143/0x2c0
[   63.846996][ T7580]  ksys_read+0xd5/0x1b0
[   63.851157][ T7580]  __x64_sys_read+0x4c/0x60
[   63.855745][ T7580]  do_syscall_64+0xcc/0x370
[   63.860367][ T7580]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   63.866411][ T7580] RIP: 0033:0x47c530
[   63.870315][ T7580] 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
[   63.890218][ T7580] RSP: 002b:000000c4203157d8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000
[   63.898747][ T7580] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   63.906909][ T7580] RDX: 0000000000001000 RSI: 000000c4203fc000 RDI: 0000000000000003
[   63.914882][ T7580] RBP: 000000c420315830 R08: 0000000000000000 R09: 0000000000000000
[   63.923083][ T7580] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000008
[   63.931171][ T7580] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff
[   63.941456][ T7580] Kernel Offset: disabled
[   63.945897][ T7580] Rebooting in 86400 seconds..