Warning: Permanently added '10.128.10.61' (ECDSA) to the list of known hosts.
2019/10/22 15:00:47 fuzzer started
2019/10/22 15:00:49 dialing manager at 10.128.0.105:33369
2019/10/22 15:00:49 syscalls: 2524
2019/10/22 15:00:49 code coverage: enabled
2019/10/22 15:00:49 comparison tracing: enabled
2019/10/22 15:00:49 extra coverage: extra coverage is not supported by the kernel
2019/10/22 15:00:49 setuid sandbox: enabled
2019/10/22 15:00:49 namespace sandbox: enabled
2019/10/22 15:00:49 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/22 15:00:49 fault injection: enabled
2019/10/22 15:00:49 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/22 15:00:49 net packet injection: enabled
2019/10/22 15:00:49 net device setup: enabled
2019/10/22 15:00:49 concurrency sanitizer: enabled
syzkaller login: [   54.845856][ T7286] ==================================================================
[   54.853974][ T7286] BUG: KCSAN: data-race in tcp_add_backlog / tcp_rcv_space_adjust
[   54.861750][ T7286] 
[   54.864062][ T7286] read to 0xffff8881251db30c of 4 bytes by interrupt on cpu 0:
[   54.871769][ T7286]  tcp_add_backlog+0x43/0xcc0
[   54.876439][ T7286]  tcp_v4_rcv+0x1a60/0x1bb0
[   54.880918][ T7286]  ip_protocol_deliver_rcu+0x4d/0x420
[   54.886272][ T7286]  ip_local_deliver_finish+0x110/0x140
[   54.891729][ T7286]  ip_local_deliver+0x133/0x210
[   54.896551][ T7286]  ip_rcv_finish+0x121/0x160
[   54.901114][ T7286]  ip_rcv+0x18f/0x1a0
[   54.905073][ T7286]  __netif_receive_skb_one_core+0xa7/0xe0
[   54.910765][ T7286]  __netif_receive_skb+0x37/0xf0
[   54.915688][ T7286]  netif_receive_skb_internal+0x59/0x190
[   54.921305][ T7286]  napi_gro_receive+0x28f/0x330
[   54.926139][ T7286]  receive_buf+0x284/0x30b0
[   54.930618][ T7286]  virtnet_poll+0x436/0x7d0
[   54.935094][ T7286]  net_rx_action+0x3ae/0xa90
[   54.940364][ T7286] 
[   54.942679][ T7286] write to 0xffff8881251db30c of 4 bytes by task 7286 on cpu 1:
[   54.950333][ T7286]  tcp_rcv_space_adjust+0x40f/0x4c0
[   54.955503][ T7286]  tcp_recvmsg+0xdaa/0x1a30
[   54.959983][ T7286]  inet_recvmsg+0xbb/0x250
[   54.964377][ T7286]  sock_recvmsg+0x92/0xb0
[   54.968686][ T7286]  sock_read_iter+0x15f/0x1e0
[   54.973341][ T7286]  new_sync_read+0x389/0x4f0
[   54.977938][ T7286]  __vfs_read+0xb1/0xc0
[   54.982075][ T7286]  vfs_read+0x143/0x2c0
[   54.986203][ T7286]  ksys_read+0xd5/0x1b0
[   54.990341][ T7286]  __x64_sys_read+0x4c/0x60
[   54.994819][ T7286]  do_syscall_64+0xcc/0x370
[   54.999299][ T7286]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   55.005161][ T7286] 
[   55.007461][ T7286] Reported by Kernel Concurrency Sanitizer on:
[   55.013600][ T7286] CPU: 1 PID: 7286 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   55.021027][ T7286] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   55.031151][ T7286] ==================================================================
[   55.041580][ T7286] Kernel panic - not syncing: panic_on_warn set ...
[   55.049947][ T7286] CPU: 1 PID: 7286 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   55.065393][ T7286] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   55.081010][ T7286] Call Trace:
[   55.084339][ T7286]  dump_stack+0xf5/0x159
[   55.089295][ T7286]  panic+0x210/0x640
[   55.094478][ T7286]  ? ksys_read+0xd5/0x1b0
[   55.099991][ T7286]  ? vprintk_func+0x8d/0x140
[   55.110923][ T7286]  kcsan_report.cold+0xc/0x10
[   55.117767][ T7286]  __kcsan_setup_watchpoint+0x32e/0x4a0
[   55.125817][ T7286]  __tsan_write4+0x32/0x40
[   55.134687][ T7286]  tcp_rcv_space_adjust+0x40f/0x4c0
[   55.143635][ T7286]  tcp_recvmsg+0xdaa/0x1a30
[   55.159098][ T7286]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   55.168821][ T7286]  inet_recvmsg+0xbb/0x250
[   55.174521][ T7286]  ? __tsan_read8+0x2c/0x30
[   55.180423][ T7286]  ? inet_sendpage+0x100/0x100
[   55.186844][ T7286]  sock_recvmsg+0x92/0xb0
[   55.192283][ T7286]  sock_read_iter+0x15f/0x1e0
[   55.197032][ T7286]  new_sync_read+0x389/0x4f0
[   55.201638][ T7286]  __vfs_read+0xb1/0xc0
[   55.205811][ T7286]  vfs_read+0x143/0x2c0
[   55.210303][ T7286]  ksys_read+0xd5/0x1b0
[   55.215229][ T7286]  __x64_sys_read+0x4c/0x60
[   55.220565][ T7286]  do_syscall_64+0xcc/0x370
[   55.225172][ T7286]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   55.231911][ T7286] RIP: 0033:0x47c530
[   55.237642][ T7286] 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
[   55.270618][ T7286] RSP: 002b:000000c4202f17d8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000
[   55.280206][ T7286] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   55.292284][ T7286] RDX: 0000000000001000 RSI: 000000c420158000 RDI: 0000000000000003
[   55.304345][ T7286] RBP: 000000c4202f1830 R08: 0000000000000000 R09: 0000000000000000
[   55.313197][ T7286] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000004
[   55.321412][ T7286] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff
[   55.330880][ T7286] Kernel Offset: disabled
[   55.335209][ T7286] Rebooting in 86400 seconds..