Warning: Permanently added '10.128.1.25' (ECDSA) to the list of known hosts.
2019/10/22 21:43:12 fuzzer started
2019/10/22 21:43:14 dialing manager at 10.128.0.105:33369
2019/10/22 21:43:14 syscalls: 2524
2019/10/22 21:43:14 code coverage: enabled
2019/10/22 21:43:14 comparison tracing: enabled
2019/10/22 21:43:14 extra coverage: extra coverage is not supported by the kernel
2019/10/22 21:43:14 setuid sandbox: enabled
2019/10/22 21:43:14 namespace sandbox: enabled
2019/10/22 21:43:14 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/22 21:43:14 fault injection: enabled
2019/10/22 21:43:14 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/22 21:43:14 net packet injection: enabled
2019/10/22 21:43:14 net device setup: enabled
2019/10/22 21:43:14 concurrency sanitizer: enabled
syzkaller login: [   52.764730][ T7344] ==================================================================
[   52.772990][ T7344] BUG: KCSAN: data-race in tcp_add_backlog / tcp_recvmsg
[   52.779996][ T7344] 
[   52.782309][ T7344] write to 0xffff888120410138 of 8 bytes by interrupt on cpu 0:
[   52.790066][ T7344]  tcp_add_backlog+0x45a/0xcc0
[   52.794814][ T7344]  tcp_v4_rcv+0x1a60/0x1bb0
[   52.799296][ T7344]  ip_protocol_deliver_rcu+0x4d/0x420
[   52.804647][ T7344]  ip_local_deliver_finish+0x110/0x140
[   52.810080][ T7344]  ip_local_deliver+0x133/0x210
[   52.814917][ T7344]  ip_rcv_finish+0x121/0x160
[   52.819482][ T7344]  ip_rcv+0x18f/0x1a0
[   52.823442][ T7344]  __netif_receive_skb_one_core+0xa7/0xe0
[   52.829152][ T7344]  __netif_receive_skb+0x37/0xf0
[   52.834067][ T7344]  netif_receive_skb_internal+0x59/0x190
[   52.839678][ T7344]  napi_gro_receive+0x28f/0x330
[   52.844517][ T7344]  receive_buf+0x284/0x30b0
[   52.849001][ T7344]  virtnet_poll+0x436/0x7d0
[   52.853493][ T7344]  net_rx_action+0x3ae/0xa90
[   52.858201][ T7344] 
[   52.860530][ T7344] read to 0xffff888120410138 of 8 bytes by task 7344 on cpu 1:
[   52.868336][ T7344]  tcp_recvmsg+0x470/0x1a30
[   52.872828][ T7344]  inet_recvmsg+0xbb/0x250
[   52.877225][ T7344]  sock_recvmsg+0x92/0xb0
[   52.881536][ T7344]  sock_read_iter+0x15f/0x1e0
[   52.886201][ T7344]  new_sync_read+0x389/0x4f0
[   52.890786][ T7344]  __vfs_read+0xb1/0xc0
[   52.894919][ T7344]  vfs_read+0x143/0x2c0
[   52.899053][ T7344]  ksys_read+0xd5/0x1b0
[   52.903186][ T7344]  __x64_sys_read+0x4c/0x60
[   52.907669][ T7344]  do_syscall_64+0xcc/0x370
[   52.912163][ T7344]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   52.918038][ T7344] 
[   52.920343][ T7344] Reported by Kernel Concurrency Sanitizer on:
[   52.926474][ T7344] CPU: 1 PID: 7344 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   52.933905][ T7344] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   52.943945][ T7344] ==================================================================
[   52.951993][ T7344] Kernel panic - not syncing: panic_on_warn set ...
[   52.958571][ T7344] CPU: 1 PID: 7344 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   52.965998][ T7344] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   52.976116][ T7344] Call Trace:
[   52.979392][ T7344]  dump_stack+0xf5/0x159
[   52.983614][ T7344]  panic+0x210/0x640
[   52.987490][ T7344]  ? __x64_sys_read+0x4c/0x60
[   52.992157][ T7344]  ? vprintk_func+0x8d/0x140
[   52.996730][ T7344]  kcsan_report.cold+0xc/0x10
[   53.001388][ T7344]  __kcsan_setup_watchpoint+0x32e/0x4a0
[   53.006923][ T7344]  __tsan_read8+0x2c/0x30
[   53.011753][ T7344]  tcp_recvmsg+0x470/0x1a30
[   53.016260][ T7344]  inet_recvmsg+0xbb/0x250
[   53.020656][ T7344]  ? __tsan_read8+0x2c/0x30
[   53.025150][ T7344]  ? inet_sendpage+0x100/0x100
[   53.029914][ T7344]  sock_recvmsg+0x92/0xb0
[   53.034223][ T7344]  sock_read_iter+0x15f/0x1e0
[   53.039070][ T7344]  new_sync_read+0x389/0x4f0
[   53.043678][ T7344]  __vfs_read+0xb1/0xc0
[   53.047830][ T7344]  vfs_read+0x143/0x2c0
[   53.051971][ T7344]  ksys_read+0xd5/0x1b0
[   53.056105][ T7344]  __x64_sys_read+0x4c/0x60
[   53.060602][ T7344]  do_syscall_64+0xcc/0x370
[   53.065100][ T7344]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   53.070983][ T7344] RIP: 0033:0x47c530
[   53.074859][ T7344] 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
[   53.094538][ T7344] RSP: 002b:000000c4203bb7d8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000
[   53.102925][ T7344] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   53.110885][ T7344] RDX: 0000000000001000 RSI: 000000c420054000 RDI: 0000000000000003
[   53.118836][ T7344] RBP: 000000c4203bb830 R08: 0000000000000000 R09: 0000000000000000
[   53.127058][ T7344] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000040
[   53.135014][ T7344] R13: ffffffffffffffff R14: 0000000000000004 R15: ffffffffffffffff
[   53.144653][ T7344] Kernel Offset: disabled
[   53.148983][ T7344] Rebooting in 86400 seconds..