Warning: Permanently added '10.128.1.52' (ECDSA) to the list of known hosts.
2019/10/10 22:11:07 fuzzer started
2019/10/10 22:11:08 dialing manager at 10.128.0.105:37331
2019/10/10 22:11:08 syscalls: 2523
2019/10/10 22:11:08 code coverage: enabled
2019/10/10 22:11:08 comparison tracing: enabled
2019/10/10 22:11:08 extra coverage: extra coverage is not supported by the kernel
2019/10/10 22:11:08 setuid sandbox: enabled
2019/10/10 22:11:08 namespace sandbox: enabled
2019/10/10 22:11:08 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/10 22:11:08 fault injection: enabled
2019/10/10 22:11:08 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/10 22:11:08 net packet injection: enabled
2019/10/10 22:11:08 net device setup: enabled
2019/10/10 22:11:08 concurrency sanitizer: enabled
syzkaller login: [   48.533522][ T7262] ==================================================================
[   48.541658][ T7262] BUG: KCSAN: data-race in tcp_add_backlog / tcp_rcv_space_adjust
[   48.549431][ T7262] 
[   48.551739][ T7262] read to 0xffff888126a2a14c of 4 bytes by interrupt on cpu 0:
[   48.559259][ T7262]  tcp_add_backlog+0x43/0xcc0
[   48.563913][ T7262]  tcp_v4_rcv+0x1aba/0x1bf0
[   48.568394][ T7262]  ip_protocol_deliver_rcu+0x51/0x470
[   48.573741][ T7262]  ip_local_deliver_finish+0x110/0x140
[   48.579172][ T7262]  ip_local_deliver+0x133/0x210
[   48.583994][ T7262]  ip_rcv_finish+0x121/0x160
[   48.588595][ T7262]  ip_rcv+0x18f/0x1a0
[   48.592564][ T7262]  __netif_receive_skb_one_core+0xa7/0xe0
[   48.598256][ T7262]  __netif_receive_skb+0x37/0xf0
[   48.603172][ T7262]  netif_receive_skb_internal+0x59/0x190
[   48.608808][ T7262]  napi_gro_receive+0x28f/0x330
[   48.613640][ T7262]  receive_buf+0x284/0x30b0
[   48.618132][ T7262]  virtnet_poll+0x436/0x7d0
[   48.622610][ T7262]  net_rx_action+0x3ae/0xa50
[   48.627168][ T7262] 
[   48.629475][ T7262] write to 0xffff888126a2a14c of 4 bytes by task 7262 on cpu 1:
[   48.637077][ T7262]  tcp_rcv_space_adjust+0x40f/0x4c0
[   48.642248][ T7262]  tcp_recvmsg+0xdaa/0x1a30
[   48.646750][ T7262]  inet_recvmsg+0xbb/0x250
[   48.651154][ T7262]  sock_recvmsg+0x92/0xb0
[   48.655459][ T7262]  sock_read_iter+0x15f/0x1e0
[   48.660132][ T7262]  new_sync_read+0x389/0x4f0
[   48.664703][ T7262]  __vfs_read+0xb1/0xc0
[   48.668832][ T7262]  vfs_read+0x143/0x2c0
[   48.672965][ T7262]  ksys_read+0xd5/0x1b0
[   48.677096][ T7262]  __x64_sys_read+0x4c/0x60
[   48.681574][ T7262]  do_syscall_64+0xcf/0x2f0
[   48.686068][ T7262]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   48.691929][ T7262] 
[   48.694230][ T7262] Reported by Kernel Concurrency Sanitizer on:
[   48.700359][ T7262] CPU: 1 PID: 7262 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   48.707456][ T7262] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   48.717484][ T7262] ==================================================================
[   48.725520][ T7262] Kernel panic - not syncing: panic_on_warn set ...
[   48.732083][ T7262] CPU: 1 PID: 7262 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   48.739162][ T7262] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   48.749191][ T7262] Call Trace:
[   48.752463][ T7262]  dump_stack+0xf5/0x159
[   48.756701][ T7262]  panic+0x209/0x639
[   48.760576][ T7262]  ? ksys_read+0xd5/0x1b0
[   48.764895][ T7262]  ? vprintk_func+0x8d/0x140
[   48.769473][ T7262]  kcsan_report.cold+0xc/0x1b
[   48.774314][ T7262]  __kcsan_setup_watchpoint+0x3ee/0x510
[   48.779838][ T7262]  __tsan_write4+0x32/0x40
[   48.784233][ T7262]  tcp_rcv_space_adjust+0x40f/0x4c0
[   48.789413][ T7262]  tcp_recvmsg+0xdaa/0x1a30
[   48.793910][ T7262]  ? __kcsan_setup_watchpoint+0x96/0x510
[   48.799522][ T7262]  inet_recvmsg+0xbb/0x250
[   48.803915][ T7262]  ? __tsan_read8+0x2c/0x30
[   48.808400][ T7262]  ? inet_sendpage+0x100/0x100
[   48.813140][ T7262]  sock_recvmsg+0x92/0xb0
[   48.817444][ T7262]  sock_read_iter+0x15f/0x1e0
[   48.822100][ T7262]  new_sync_read+0x389/0x4f0
[   48.826673][ T7262]  __vfs_read+0xb1/0xc0
[   48.830819][ T7262]  vfs_read+0x143/0x2c0
[   48.834953][ T7262]  ksys_read+0xd5/0x1b0
[   48.839087][ T7262]  __x64_sys_read+0x4c/0x60
[   48.843655][ T7262]  do_syscall_64+0xcf/0x2f0
[   48.848142][ T7262]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   48.854008][ T7262] RIP: 0033:0x47c530
[   48.857913][ T7262] 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
[   48.877659][ T7262] RSP: 002b:000000c4204db7d8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000
[   48.886053][ T7262] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   48.894004][ T7262] RDX: 0000000000001000 RSI: 000000c420054000 RDI: 0000000000000003
[   48.901971][ T7262] RBP: 000000c4204db830 R08: 0000000000000000 R09: 0000000000000000
[   48.909939][ T7262] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000004
[   48.917896][ T7262] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff
[   48.927148][ T7262] Kernel Offset: disabled
[   48.931470][ T7262] Rebooting in 86400 seconds..