Warning: Permanently added '10.128.0.114' (ECDSA) to the list of known hosts.
2019/10/22 23:30:16 fuzzer started
2019/10/22 23:30:17 dialing manager at 10.128.0.105:33369
2019/10/22 23:30:17 syscalls: 2524
2019/10/22 23:30:17 code coverage: enabled
2019/10/22 23:30:17 comparison tracing: enabled
2019/10/22 23:30:17 extra coverage: extra coverage is not supported by the kernel
2019/10/22 23:30:17 setuid sandbox: enabled
2019/10/22 23:30:17 namespace sandbox: enabled
2019/10/22 23:30:17 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/22 23:30:17 fault injection: enabled
2019/10/22 23:30:17 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/22 23:30:17 net packet injection: enabled
2019/10/22 23:30:17 net device setup: enabled
2019/10/22 23:30:17 concurrency sanitizer: enabled
syzkaller login: [   57.189941][ T7328] ==================================================================
[   57.198101][ T7328] BUG: KCSAN: data-race in tcp_add_backlog / tcp_recvmsg
[   57.205110][ T7328] 
[   57.207573][ T7328] write to 0xffff8881264e89f8 of 8 bytes by interrupt on cpu 0:
[   57.215232][ T7328]  tcp_add_backlog+0x45a/0xcc0
[   57.219973][ T7328]  tcp_v4_rcv+0x1a60/0x1bb0
[   57.224465][ T7328]  ip_protocol_deliver_rcu+0x4d/0x420
[   57.229827][ T7328]  ip_local_deliver_finish+0x110/0x140
[   57.235265][ T7328]  ip_local_deliver+0x133/0x210
[   57.240105][ T7328]  ip_rcv_finish+0x121/0x160
[   57.244669][ T7328]  ip_rcv+0x18f/0x1a0
[   57.248641][ T7328]  __netif_receive_skb_one_core+0xa7/0xe0
[   57.254348][ T7328]  __netif_receive_skb+0x37/0xf0
[   57.259272][ T7328]  netif_receive_skb_internal+0x59/0x190
[   57.264885][ T7328]  napi_gro_receive+0x28f/0x330
[   57.269716][ T7328]  receive_buf+0x284/0x30b0
[   57.274196][ T7328]  virtnet_poll+0x436/0x7d0
[   57.278776][ T7328]  net_rx_action+0x3ae/0xa90
[   57.283350][ T7328] 
[   57.285669][ T7328] read to 0xffff8881264e89f8 of 8 bytes by task 7328 on cpu 1:
[   57.293275][ T7328]  tcp_recvmsg+0x470/0x1a30
[   57.297768][ T7328]  inet_recvmsg+0xbb/0x250
[   57.302160][ T7328]  sock_recvmsg+0x92/0xb0
[   57.306478][ T7328]  sock_read_iter+0x15f/0x1e0
[   57.311146][ T7328]  new_sync_read+0x389/0x4f0
[   57.315710][ T7328]  __vfs_read+0xb1/0xc0
[   57.319873][ T7328]  vfs_read+0x143/0x2c0
[   57.324020][ T7328]  ksys_read+0xd5/0x1b0
[   57.328168][ T7328]  __x64_sys_read+0x4c/0x60
[   57.332665][ T7328]  do_syscall_64+0xcc/0x370
[   57.337145][ T7328]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   57.343008][ T7328] 
[   57.345314][ T7328] Reported by Kernel Concurrency Sanitizer on:
[   57.351446][ T7328] CPU: 1 PID: 7328 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   57.358872][ T7328] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   57.369009][ T7328] ==================================================================
[   57.377081][ T7328] Kernel panic - not syncing: panic_on_warn set ...
[   57.383658][ T7328] CPU: 1 PID: 7328 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   57.391087][ T7328] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   57.401140][ T7328] Call Trace:
[   57.404413][ T7328]  dump_stack+0xf5/0x159
[   57.408634][ T7328]  panic+0x210/0x640
[   57.412509][ T7328]  ? __x64_sys_read+0x4c/0x60
[   57.417164][ T7328]  ? vprintk_func+0x8d/0x140
[   57.421749][ T7328]  kcsan_report.cold+0xc/0x10
[   57.426408][ T7328]  __kcsan_setup_watchpoint+0x32e/0x4a0
[   57.431945][ T7328]  __tsan_read8+0x2c/0x30
[   57.436256][ T7328]  tcp_recvmsg+0x470/0x1a30
[   57.440745][ T7328]  inet_recvmsg+0xbb/0x250
[   57.445153][ T7328]  ? __tsan_read8+0x2c/0x30
[   57.449635][ T7328]  ? inet_sendpage+0x100/0x100
[   57.454424][ T7328]  sock_recvmsg+0x92/0xb0
[   57.458927][ T7328]  sock_read_iter+0x15f/0x1e0
[   57.463612][ T7328]  new_sync_read+0x389/0x4f0
[   57.468194][ T7328]  __vfs_read+0xb1/0xc0
[   57.472332][ T7328]  vfs_read+0x143/0x2c0
[   57.476510][ T7328]  ksys_read+0xd5/0x1b0
[   57.480683][ T7328]  __x64_sys_read+0x4c/0x60
[   57.485181][ T7328]  do_syscall_64+0xcc/0x370
[   57.489667][ T7328]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   57.495555][ T7328] RIP: 0033:0x47c530
[   57.499452][ T7328] 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
[   57.519479][ T7328] RSP: 002b:000000c4203b37d8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000
[   57.527993][ T7328] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   57.539267][ T7328] RDX: 0000000000001000 RSI: 000000c420306000 RDI: 0000000000000003
[   57.547228][ T7328] RBP: 000000c4203b3830 R08: 0000000000000000 R09: 0000000000000000
[   57.555179][ T7328] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000200
[   57.563128][ T7328] R13: ffffffffffffffff R14: 0000000000000004 R15: ffffffffffffffff
[   57.572586][ T7328] Kernel Offset: disabled
[   57.576930][ T7328] Rebooting in 86400 seconds..