Warning: Permanently added '10.128.0.14' (ECDSA) to the list of known hosts.
2019/10/22 08:47:17 fuzzer started
2019/10/22 08:47:19 dialing manager at 10.128.0.105:37053
2019/10/22 08:47:19 syscalls: 2524
2019/10/22 08:47:19 code coverage: enabled
2019/10/22 08:47:19 comparison tracing: enabled
2019/10/22 08:47:19 extra coverage: extra coverage is not supported by the kernel
2019/10/22 08:47:19 setuid sandbox: enabled
2019/10/22 08:47:19 namespace sandbox: enabled
2019/10/22 08:47:19 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/22 08:47:19 fault injection: enabled
2019/10/22 08:47:19 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/22 08:47:19 net packet injection: enabled
2019/10/22 08:47:19 net device setup: enabled
2019/10/22 08:47:19 concurrency sanitizer: enabled
syzkaller login: [   44.633532][ T7185] ==================================================================
[   44.641649][ T7185] BUG: KCSAN: data-race in tcp_add_backlog / tcp_recvmsg
[   44.648638][ T7185] 
[   44.651044][ T7185] write to 0xffff888126b7e138 of 8 bytes by interrupt on cpu 0:
[   44.658662][ T7185]  tcp_add_backlog+0x45a/0xcc0
[   44.663429][ T7185]  tcp_v4_rcv+0x1a60/0x1bb0
[   44.667913][ T7185]  ip_protocol_deliver_rcu+0x4d/0x420
[   44.673268][ T7185]  ip_local_deliver_finish+0x110/0x140
[   44.678705][ T7185]  ip_local_deliver+0x133/0x210
[   44.683531][ T7185]  ip_rcv_finish+0x121/0x160
[   44.688094][ T7185]  ip_rcv+0x18f/0x1a0
[   44.692059][ T7185]  __netif_receive_skb_one_core+0xa7/0xe0
[   44.697758][ T7185]  __netif_receive_skb+0x37/0xf0
[   44.702673][ T7185]  netif_receive_skb_internal+0x59/0x190
[   44.708280][ T7185]  napi_gro_receive+0x28f/0x330
[   44.713120][ T7185]  receive_buf+0x284/0x30b0
[   44.717598][ T7185]  virtnet_poll+0x436/0x7d0
[   44.722080][ T7185]  net_rx_action+0x3ae/0xa90
[   44.726636][ T7185] 
[   44.728944][ T7185] read to 0xffff888126b7e138 of 8 bytes by task 7185 on cpu 1:
[   44.736462][ T7185]  tcp_recvmsg+0x470/0x1a30
[   44.740941][ T7185]  inet_recvmsg+0xbb/0x250
[   44.745339][ T7185]  sock_recvmsg+0x92/0xb0
[   44.749643][ T7185]  sock_read_iter+0x15f/0x1e0
[   44.754298][ T7185]  new_sync_read+0x389/0x4f0
[   44.758862][ T7185]  __vfs_read+0xb1/0xc0
[   44.762993][ T7185]  vfs_read+0x143/0x2c0
[   44.767122][ T7185]  ksys_read+0xd5/0x1b0
[   44.771249][ T7185]  __x64_sys_read+0x4c/0x60
[   44.775732][ T7185]  do_syscall_64+0xcc/0x370
[   44.780211][ T7185]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   44.786068][ T7185] 
[   44.788371][ T7185] Reported by Kernel Concurrency Sanitizer on:
[   44.794499][ T7185] CPU: 1 PID: 7185 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   44.801922][ T7185] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   44.812126][ T7185] ==================================================================
[   44.820166][ T7185] Kernel panic - not syncing: panic_on_warn set ...
[   44.826728][ T7185] CPU: 1 PID: 7185 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   44.834151][ T7185] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   44.844177][ T7185] Call Trace:
[   44.847443][ T7185]  dump_stack+0xf5/0x159
[   44.851660][ T7185]  panic+0x210/0x640
[   44.855534][ T7185]  ? __x64_sys_read+0x4c/0x60
[   44.860197][ T7185]  ? vprintk_func+0x8d/0x140
[   44.864767][ T7185]  kcsan_report.cold+0xc/0x10
[   44.869433][ T7185]  __kcsan_setup_watchpoint+0x32e/0x4a0
[   44.874957][ T7185]  __tsan_read8+0x2c/0x30
[   44.879266][ T7185]  tcp_recvmsg+0x470/0x1a30
[   44.883750][ T7185]  inet_recvmsg+0xbb/0x250
[   44.888140][ T7185]  ? __tsan_read8+0x2c/0x30
[   44.892619][ T7185]  ? inet_sendpage+0x100/0x100
[   44.897365][ T7185]  sock_recvmsg+0x92/0xb0
[   44.901670][ T7185]  sock_read_iter+0x15f/0x1e0
[   44.906325][ T7185]  new_sync_read+0x389/0x4f0
[   44.910900][ T7185]  __vfs_read+0xb1/0xc0
[   44.915035][ T7185]  vfs_read+0x143/0x2c0
[   44.919180][ T7185]  ksys_read+0xd5/0x1b0
[   44.923328][ T7185]  __x64_sys_read+0x4c/0x60
[   44.927809][ T7185]  do_syscall_64+0xcc/0x370
[   44.932291][ T7185]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   44.938166][ T7185] RIP: 0033:0x47c530
[   44.942040][ T7185] 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
[   44.961642][ T7185] RSP: 002b:000000c42033d7d8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000
[   44.970028][ T7185] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   44.977979][ T7185] RDX: 0000000000001000 RSI: 000000c420304000 RDI: 0000000000000003
[   44.985936][ T7185] RBP: 000000c42033d830 R08: 0000000000000000 R09: 0000000000000000
[   44.993884][ T7185] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000004
[   45.001842][ T7185] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff
[   45.011377][ T7185] Kernel Offset: disabled
[   45.015694][ T7185] Rebooting in 86400 seconds..