Warning: Permanently added '10.128.0.158' (ECDSA) to the list of known hosts.
2019/10/04 12:26:30 fuzzer started
2019/10/04 12:26:32 dialing manager at 10.128.0.105:38119
2019/10/04 12:26:32 syscalls: 2523
2019/10/04 12:26:32 code coverage: enabled
2019/10/04 12:26:32 comparison tracing: enabled
2019/10/04 12:26:32 extra coverage: extra coverage is not supported by the kernel
2019/10/04 12:26:32 setuid sandbox: enabled
2019/10/04 12:26:32 namespace sandbox: enabled
2019/10/04 12:26:32 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/04 12:26:32 fault injection: enabled
2019/10/04 12:26:32 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/04 12:26:32 net packet injection: enabled
2019/10/04 12:26:32 net device setup: enabled
2019/10/04 12:26:32 concurrency sanitizer: enabled
syzkaller login: [   54.882387][ T7329] ==================================================================
[   54.890648][ T7329] BUG: KCSAN: data-race in __tcp_select_window+0x6b/0x4d0 and tcp_add_backlog+0x4a0/0xcc0
[   54.900589][ T7329] 
[   54.902927][ T7329] write to 0xffff88811e09812c of 4 bytes by interrupt on cpu 1:
[   54.910538][ T7329]  tcp_add_backlog+0x4a0/0xcc0
[   54.915278][ T7329]  tcp_v4_rcv+0x1aba/0x1bf0
[   54.919794][ T7329]  ip_protocol_deliver_rcu+0x51/0x470
[   54.925143][ T7329]  ip_local_deliver_finish+0x110/0x140
[   54.930575][ T7329]  ip_local_deliver+0x133/0x210
[   54.935398][ T7329]  ip_rcv_finish+0x121/0x160
[   54.939963][ T7329]  ip_rcv+0x18f/0x1a0
[   54.944050][ T7329]  __netif_receive_skb_one_core+0xa7/0xe0
[   54.949747][ T7329]  __netif_receive_skb+0x37/0xf0
[   54.954688][ T7329]  netif_receive_skb_internal+0x59/0x190
[   54.960295][ T7329]  napi_gro_receive+0x28f/0x330
[   54.965129][ T7329]  receive_buf+0x284/0x30b0
[   54.969617][ T7329]  virtnet_poll+0x436/0x7d0
[   54.974107][ T7329]  net_rx_action+0x3ae/0xa50
[   54.978666][ T7329] 
[   54.980978][ T7329] read to 0xffff88811e09812c of 4 bytes by task 7329 on cpu 0:
[   54.988503][ T7329]  __tcp_select_window+0x6b/0x4d0
[   54.993520][ T7329]  __tcp_transmit_skb+0x679/0x1cd0
[   54.998624][ T7329]  __tcp_send_ack+0x246/0x300
[   55.003286][ T7329]  tcp_send_ack+0x34/0x40
[   55.007599][ T7329]  tcp_cleanup_rbuf+0x130/0x360
[   55.012432][ T7329]  tcp_recvmsg+0x633/0x1a30
[   55.016909][ T7329]  inet_recvmsg+0xbb/0x250
[   55.021299][ T7329]  sock_recvmsg+0x92/0xb0
[   55.025618][ T7329]  sock_read_iter+0x15f/0x1e0
[   55.030276][ T7329]  new_sync_read+0x389/0x4f0
[   55.034843][ T7329]  __vfs_read+0xb1/0xc0
[   55.038980][ T7329]  vfs_read+0x143/0x2c0
[   55.043109][ T7329]  ksys_read+0xd5/0x1b0
[   55.047234][ T7329] 
[   55.049538][ T7329] Reported by Kernel Concurrency Sanitizer on:
[   55.055691][ T7329] CPU: 0 PID: 7329 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   55.062777][ T7329] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   55.072812][ T7329] ==================================================================
[   55.080854][ T7329] Kernel panic - not syncing: panic_on_warn set ...
[   55.087417][ T7329] CPU: 0 PID: 7329 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   55.094495][ T7329] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   55.104529][ T7329] Call Trace:
[   55.107798][ T7329]  dump_stack+0xf5/0x159
[   55.112023][ T7329]  panic+0x209/0x639
[   55.115897][ T7329]  ? vprintk_func+0x8d/0x140
[   55.120477][ T7329]  kcsan_report.cold+0x57/0xeb
[   55.125242][ T7329]  __kcsan_setup_watchpoint+0x342/0x500
[   55.130770][ T7329]  __tsan_read4+0x2c/0x30
[   55.135091][ T7329]  __tcp_select_window+0x6b/0x4d0
[   55.140121][ T7329]  __tcp_transmit_skb+0x679/0x1cd0
[   55.145225][ T7329]  __tcp_send_ack+0x246/0x300
[   55.149883][ T7329]  tcp_send_ack+0x34/0x40
[   55.154191][ T7329]  tcp_cleanup_rbuf+0x130/0x360
[   55.159017][ T7329]  tcp_recvmsg+0x633/0x1a30
[   55.163525][ T7329]  inet_recvmsg+0xbb/0x250
[   55.167919][ T7329]  ? __tsan_read8+0x2c/0x30
[   55.172401][ T7329]  ? inet_sendpage+0x100/0x100
[   55.177142][ T7329]  sock_recvmsg+0x92/0xb0
[   55.181446][ T7329]  sock_read_iter+0x15f/0x1e0
[   55.186104][ T7329]  new_sync_read+0x389/0x4f0
[   55.190684][ T7329]  __vfs_read+0xb1/0xc0
[   55.194817][ T7329]  vfs_read+0x143/0x2c0
[   55.198959][ T7329]  ksys_read+0xd5/0x1b0
[   55.203093][ T7329]  __x64_sys_read+0x4c/0x60
[   55.207587][ T7329]  do_syscall_64+0xcf/0x2f0
[   55.212267][ T7329]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   55.218137][ T7329] RIP: 0033:0x47c530
[   55.222020][ T7329] 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
[   55.241600][ T7329] RSP: 002b:000000c42014b810 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
[   55.249996][ T7329] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   55.257945][ T7329] RDX: 0000000000001000 RSI: 000000c42031e000 RDI: 0000000000000003
[   55.265894][ T7329] RBP: 000000c42014b868 R08: 0000000000000000 R09: 0000000000000000
[   55.273841][ T7329] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000200
[   55.281801][ T7329] R13: ffffffffffffffff R14: 0000000000000004 R15: ffffffffffffffff
[   55.291085][ T7329] Kernel Offset: disabled
[   55.295404][ T7329] Rebooting in 86400 seconds..