Warning: Permanently added '10.128.10.22' (ECDSA) to the list of known hosts.
2019/10/22 20:14:04 fuzzer started
2019/10/22 20:14:06 dialing manager at 10.128.0.105:33369
2019/10/22 20:14:06 syscalls: 2524
2019/10/22 20:14:06 code coverage: enabled
2019/10/22 20:14:06 comparison tracing: enabled
2019/10/22 20:14:06 extra coverage: extra coverage is not supported by the kernel
2019/10/22 20:14:06 setuid sandbox: enabled
2019/10/22 20:14:06 namespace sandbox: enabled
2019/10/22 20:14:06 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/22 20:14:06 fault injection: enabled
2019/10/22 20:14:06 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/22 20:14:06 net packet injection: enabled
2019/10/22 20:14:06 net device setup: enabled
2019/10/22 20:14:06 concurrency sanitizer: enabled
syzkaller login: [   45.574101][ T7241] ==================================================================
[   45.582261][ T7241] BUG: KCSAN: data-race in tcp_add_backlog / tcp_recvmsg
[   45.589301][ T7241] 
[   45.591609][ T7241] write to 0xffff888123083338 of 8 bytes by interrupt on cpu 0:
[   45.600343][ T7241]  tcp_add_backlog+0x45a/0xcc0
[   45.605082][ T7241]  tcp_v4_rcv+0x1a60/0x1bb0
[   45.609560][ T7241]  ip_protocol_deliver_rcu+0x4d/0x420
[   45.614905][ T7241]  ip_local_deliver_finish+0x110/0x140
[   45.620348][ T7241]  ip_local_deliver+0x133/0x210
[   45.625206][ T7241]  ip_rcv_finish+0x121/0x160
[   45.629772][ T7241]  ip_rcv+0x18f/0x1a0
[   45.633728][ T7241]  __netif_receive_skb_one_core+0xa7/0xe0
[   45.639432][ T7241]  __netif_receive_skb+0x37/0xf0
[   45.644349][ T7241]  netif_receive_skb_internal+0x59/0x190
[   45.649954][ T7241]  napi_gro_receive+0x28f/0x330
[   45.654783][ T7241]  receive_buf+0x284/0x30b0
[   45.659265][ T7241]  virtnet_poll+0x436/0x7d0
[   45.663746][ T7241]  net_rx_action+0x3ae/0xa90
[   45.668307][ T7241] 
[   45.670615][ T7241] read to 0xffff888123083338 of 8 bytes by task 7241 on cpu 1:
[   45.678134][ T7241]  tcp_recvmsg+0x470/0x1a30
[   45.682628][ T7241]  inet_recvmsg+0xbb/0x250
[   45.687021][ T7241]  sock_recvmsg+0x92/0xb0
[   45.691332][ T7241]  sock_read_iter+0x15f/0x1e0
[   45.695986][ T7241]  new_sync_read+0x389/0x4f0
[   45.700570][ T7241]  __vfs_read+0xb1/0xc0
[   45.704701][ T7241]  vfs_read+0x143/0x2c0
[   45.708841][ T7241]  ksys_read+0xd5/0x1b0
[   45.713005][ T7241]  __x64_sys_read+0x4c/0x60
[   45.717489][ T7241]  do_syscall_64+0xcc/0x370
[   45.721968][ T7241]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   45.727828][ T7241] 
[   45.730142][ T7241] Reported by Kernel Concurrency Sanitizer on:
[   45.736270][ T7241] CPU: 1 PID: 7241 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   45.743781][ T7241] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   45.753855][ T7241] ==================================================================
[   45.761926][ T7241] Kernel panic - not syncing: panic_on_warn set ...
[   45.768488][ T7241] CPU: 1 PID: 7241 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   45.775910][ T7241] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   45.785946][ T7241] Call Trace:
[   45.789242][ T7241]  dump_stack+0xf5/0x159
[   45.793471][ T7241]  panic+0x210/0x640
[   45.797360][ T7241]  ? __x64_sys_read+0x4c/0x60
[   45.802019][ T7241]  ? vprintk_func+0x8d/0x140
[   45.806602][ T7241]  kcsan_report.cold+0xc/0x10
[   45.811261][ T7241]  __kcsan_setup_watchpoint+0x32e/0x4a0
[   45.816782][ T7241]  __tsan_read8+0x2c/0x30
[   45.821100][ T7241]  tcp_recvmsg+0x470/0x1a30
[   45.825587][ T7241]  inet_recvmsg+0xbb/0x250
[   45.829988][ T7241]  ? __tsan_read8+0x2c/0x30
[   45.834471][ T7241]  ? inet_sendpage+0x100/0x100
[   45.839223][ T7241]  sock_recvmsg+0x92/0xb0
[   45.843558][ T7241]  sock_read_iter+0x15f/0x1e0
[   45.848217][ T7241]  new_sync_read+0x389/0x4f0
[   45.852825][ T7241]  __vfs_read+0xb1/0xc0
[   45.856980][ T7241]  vfs_read+0x143/0x2c0
[   45.861395][ T7241]  ksys_read+0xd5/0x1b0
[   45.865531][ T7241]  __x64_sys_read+0x4c/0x60
[   45.870014][ T7241]  do_syscall_64+0xcc/0x370
[   45.874497][ T7241]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   45.880370][ T7241] RIP: 0033:0x47c530
[   45.884253][ T7241] 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
[   45.903854][ T7241] RSP: 002b:000000c4203cd810 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
[   45.912329][ T7241] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   45.920283][ T7241] RDX: 0000000000001000 RSI: 000000c42008e000 RDI: 0000000000000003
[   45.928231][ T7241] RBP: 000000c4203cd868 R08: 0000000000000000 R09: 0000000000000000
[   45.936175][ T7241] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000020
[   45.944126][ T7241] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff
[   45.953459][ T7241] Kernel Offset: disabled
[   45.957776][ T7241] Rebooting in 86400 seconds..