Warning: Permanently added '10.128.0.28' (ECDSA) to the list of known hosts.
2019/11/29 10:21:29 fuzzer started
2019/11/29 10:21:31 dialing manager at 10.128.0.105:40749
2019/11/29 10:21:31 syscalls: 2589
2019/11/29 10:21:31 code coverage: enabled
2019/11/29 10:21:31 comparison tracing: enabled
2019/11/29 10:21:31 extra coverage: extra coverage is not supported by the kernel
2019/11/29 10:21:31 setuid sandbox: enabled
2019/11/29 10:21:31 namespace sandbox: enabled
2019/11/29 10:21:31 Android sandbox: /sys/fs/selinux/policy does not exist
2019/11/29 10:21:31 fault injection: enabled
2019/11/29 10:21:31 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/11/29 10:21:31 net packet injection: enabled
2019/11/29 10:21:31 net device setup: enabled
2019/11/29 10:21:31 concurrency sanitizer: enabled
2019/11/29 10:21:31 devlink PCI setup: PCI device 0000:00:10.0 is not available
2019/11/29 10:21:32 adding functions to KCSAN blacklist: 'pipe_poll' 'tomoyo_supervisor' '__hrtimer_run_queues' 'find_next_bit' 'run_timer_softirq' 
syzkaller login: [   56.974352][ T7630] ==================================================================
[   56.982661][ T7630] BUG: KCSAN: data-race in tcp_add_backlog / tcp_recvmsg
[   56.989780][ T7630] 
[   56.992101][ T7630] write to 0xffff888122a96138 of 8 bytes by interrupt on cpu 1:
[   56.999896][ T7630]  tcp_add_backlog+0x476/0xce0
[   57.004750][ T7630]  tcp_v4_rcv+0x1a70/0x1bd0
[   57.009252][ T7630]  ip_protocol_deliver_rcu+0x4d/0x420
[   57.014639][ T7630]  ip_local_deliver_finish+0x110/0x140
[   57.020182][ T7630]  ip_local_deliver+0x133/0x210
[   57.025022][ T7630]  ip_rcv_finish+0x121/0x160
[   57.029787][ T7630]  ip_rcv+0x18f/0x1a0
[   57.033751][ T7630]  __netif_receive_skb_one_core+0xa7/0xe0
[   57.039446][ T7630]  __netif_receive_skb+0x37/0xf0
[   57.044378][ T7630]  netif_receive_skb_internal+0x59/0x190
[   57.050003][ T7630]  napi_gro_receive+0x28f/0x330
[   57.054853][ T7630]  receive_buf+0x284/0x30b0
[   57.059690][ T7630]  virtnet_poll+0x436/0x7d0
[   57.064173][ T7630]  net_rx_action+0x3ae/0xa90
[   57.068844][ T7630]  __do_softirq+0x115/0x33f
[   57.073344][ T7630]  run_ksoftirqd+0x46/0x60
[   57.077740][ T7630]  smpboot_thread_fn+0x37d/0x4a0
[   57.082760][ T7630]  kthread+0x1d4/0x200
[   57.086816][ T7630]  ret_from_fork+0x1f/0x30
[   57.091227][ T7630] 
[   57.093551][ T7630] read to 0xffff888122a96138 of 8 bytes by task 7630 on cpu 0:
[   57.101199][ T7630]  tcp_recvmsg+0x46e/0x1b40
[   57.105795][ T7630]  inet_recvmsg+0xbb/0x250
[   57.110260][ T7630]  sock_recvmsg+0x92/0xb0
[   57.114587][ T7630]  sock_read_iter+0x15f/0x1e0
[   57.119538][ T7630]  new_sync_read+0x389/0x4f0
[   57.124145][ T7630]  __vfs_read+0xb1/0xc0
[   57.128286][ T7630]  vfs_read+0x143/0x2c0
[   57.132425][ T7630]  ksys_read+0xd5/0x1b0
[   57.136667][ T7630]  __x64_sys_read+0x4c/0x60
[   57.141152][ T7630]  do_syscall_64+0xcc/0x370
[   57.145651][ T7630]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   57.151611][ T7630] 
[   57.153928][ T7630] Reported by Kernel Concurrency Sanitizer on:
[   57.160074][ T7630] CPU: 0 PID: 7630 Comm: syz-fuzzer Not tainted 5.4.0-syzkaller #0
[   57.168064][ T7630] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   57.178106][ T7630] ==================================================================
[   57.186236][ T7630] Kernel panic - not syncing: panic_on_warn set ...
[   57.193324][ T7630] CPU: 0 PID: 7630 Comm: syz-fuzzer Not tainted 5.4.0-syzkaller #0
[   57.201363][ T7630] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   57.211395][ T7630] Call Trace:
[   57.214856][ T7630]  dump_stack+0x11d/0x181
[   57.219168][ T7630]  panic+0x210/0x640
[   57.223744][ T7630]  ? vprintk_func+0x8d/0x140
[   57.228346][ T7630]  kcsan_report.cold+0xc/0xd
[   57.233147][ T7630]  kcsan_setup_watchpoint+0x3fe/0x460
[   57.238510][ T7630]  __tsan_read8+0xc6/0x100
[   57.242934][ T7630]  tcp_recvmsg+0x46e/0x1b40
[   57.247434][ T7630]  inet_recvmsg+0xbb/0x250
[   57.251873][ T7630]  ? apparmor_socket_recvmsg+0x3b/0x50
[   57.257336][ T7630]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[   57.263894][ T7630]  ? security_socket_recvmsg+0x92/0xb0
[   57.269346][ T7630]  ? inet_sendpage+0x100/0x100
[   57.274093][ T7630]  sock_recvmsg+0x92/0xb0
[   57.278412][ T7630]  sock_read_iter+0x15f/0x1e0
[   57.283129][ T7630]  new_sync_read+0x389/0x4f0
[   57.287763][ T7630]  __vfs_read+0xb1/0xc0
[   57.292049][ T7630]  vfs_read+0x143/0x2c0
[   57.296210][ T7630]  ksys_read+0xd5/0x1b0
[   57.300345][ T7630]  __x64_sys_read+0x4c/0x60
[   57.304831][ T7630]  do_syscall_64+0xcc/0x370
[   57.309332][ T7630]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   57.315215][ T7630] RIP: 0033:0x47c530
[   57.319095][ T7630] 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
[   57.339321][ T7630] RSP: 002b:000000c4203d17d8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000
[   57.348085][ T7630] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   57.356059][ T7630] RDX: 0000000000001000 RSI: 000000c4203dc000 RDI: 0000000000000003
[   57.364965][ T7630] RBP: 000000c4203d1830 R08: 0000000000000000 R09: 0000000000000000
[   57.372919][ T7630] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000004
[   57.380871][ T7630] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff
[   57.392431][ T7630] Kernel Offset: disabled
[   57.396776][ T7630] Rebooting in 86400 seconds..