Warning: Permanently added '10.128.0.191' (ECDSA) to the list of known hosts.
2019/10/22 11:43:53 fuzzer started
2019/10/22 11:43:54 dialing manager at 10.128.0.105:37053
2019/10/22 11:43:54 syscalls: 2524
2019/10/22 11:43:54 code coverage: enabled
2019/10/22 11:43:54 comparison tracing: enabled
2019/10/22 11:43:54 extra coverage: extra coverage is not supported by the kernel
2019/10/22 11:43:54 setuid sandbox: enabled
2019/10/22 11:43:54 namespace sandbox: enabled
2019/10/22 11:43:54 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/22 11:43:54 fault injection: enabled
2019/10/22 11:43:54 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/22 11:43:54 net packet injection: enabled
2019/10/22 11:43:54 net device setup: enabled
2019/10/22 11:43:54 concurrency sanitizer: enabled
syzkaller login: [   55.146492][ T7279] ==================================================================
[   55.154625][ T7279] BUG: KCSAN: data-race in tcp_poll / tcp_queue_rcv
[   55.161181][ T7279] 
[   55.163488][ T7279] write to 0xffff88811cfae5b8 of 4 bytes by interrupt on cpu 1:
[   55.171143][ T7279]  tcp_queue_rcv+0x180/0x380
[   55.175753][ T7279]  tcp_rcv_established+0xbf1/0xf50
[   55.180843][ T7279]  tcp_v4_do_rcv+0x381/0x4e0
[   55.185409][ T7279]  tcp_v4_rcv+0x19dc/0x1bb0
[   55.189911][ T7279]  ip_protocol_deliver_rcu+0x4d/0x420
[   55.195270][ T7279]  ip_local_deliver_finish+0x110/0x140
[   55.200716][ T7279]  ip_local_deliver+0x133/0x210
[   55.205542][ T7279]  ip_rcv_finish+0x121/0x160
[   55.210103][ T7279]  ip_rcv+0x18f/0x1a0
[   55.214061][ T7279]  __netif_receive_skb_one_core+0xa7/0xe0
[   55.219761][ T7279]  __netif_receive_skb+0x37/0xf0
[   55.224682][ T7279]  netif_receive_skb_internal+0x59/0x190
[   55.230287][ T7279]  napi_gro_receive+0x28f/0x330
[   55.235119][ T7279]  receive_buf+0x284/0x30b0
[   55.239590][ T7279] 
[   55.241899][ T7279] read to 0xffff88811cfae5b8 of 4 bytes by task 7279 on cpu 0:
[   55.249417][ T7279]  tcp_poll+0x204/0x6b0
[   55.253549][ T7279]  sock_poll+0xed/0x250
[   55.257688][ T7279]  ep_item_poll.isra.0+0x90/0x190
[   55.262699][ T7279]  ep_send_events_proc+0x113/0x590
[   55.267785][ T7279]  ep_scan_ready_list.constprop.0+0x189/0x500
[   55.274098][ T7279]  ep_poll+0xe3/0x900
[   55.278146][ T7279]  do_epoll_wait+0x162/0x180
[   55.282728][ T7279]  __x64_sys_epoll_pwait+0xcd/0x180
[   55.287933][ T7279]  do_syscall_64+0xcc/0x370
[   55.292430][ T7279]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   55.298288][ T7279] 
[   55.300590][ T7279] Reported by Kernel Concurrency Sanitizer on:
[   55.306717][ T7279] CPU: 0 PID: 7279 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   55.314145][ T7279] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   55.324186][ T7279] ==================================================================
[   55.332246][ T7279] Kernel panic - not syncing: panic_on_warn set ...
[   55.339069][ T7279] CPU: 0 PID: 7279 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   55.346494][ T7279] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   55.356542][ T7279] Call Trace:
[   55.359812][ T7279]  dump_stack+0xf5/0x159
[   55.364032][ T7279]  panic+0x210/0x640
[   55.367908][ T7279]  ? do_syscall_64+0xcc/0x370
[   55.372563][ T7279]  ? vprintk_func+0x8d/0x140
[   55.377148][ T7279]  kcsan_report.cold+0xc/0x10
[   55.381825][ T7279]  __kcsan_setup_watchpoint+0x32e/0x4a0
[   55.387350][ T7279]  ? tcp_recvmsg+0x65b/0x1a30
[   55.392006][ T7279]  __tsan_read4+0x2c/0x30
[   55.396312][ T7279]  tcp_poll+0x204/0x6b0
[   55.400448][ T7279]  ? tcp_alloc_md5sig_pool+0x320/0x320
[   55.405888][ T7279]  sock_poll+0xed/0x250
[   55.410024][ T7279]  ? sock_read_iter+0x1e0/0x1e0
[   55.414879][ T7279]  ep_item_poll.isra.0+0x90/0x190
[   55.419885][ T7279]  ep_send_events_proc+0x113/0x590
[   55.424973][ T7279]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   55.430603][ T7279]  ep_scan_ready_list.constprop.0+0x189/0x500
[   55.436664][ T7279]  ? ep_loop_check_proc+0x2f0/0x2f0
[   55.441991][ T7279]  ep_poll+0xe3/0x900
[   55.445952][ T7279]  ? __fget+0xb8/0x1d0
[   55.450003][ T7279]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   55.455633][ T7279]  ? __fget_light+0xaf/0x190
[   55.460201][ T7279]  do_epoll_wait+0x162/0x180
[   55.464769][ T7279]  __x64_sys_epoll_pwait+0xcd/0x180
[   55.470826][ T7279]  do_syscall_64+0xcc/0x370
[   55.475310][ T7279]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   55.481176][ T7279] RIP: 0033:0x45b300
[   55.485050][ T7279] Code: 0f 05 89 44 24 20 c3 cc cc cc 8b 7c 24 08 48 8b 74 24 10 8b 54 24 18 44 8b 54 24 1c 49 c7 c0 00 00 00 00 b8 19 01 00 00 0f 05 <89> 44 24 20 c3 cc cc cc cc cc cc cc cc cc cc cc 8b 7c 24 08 48 c7
[   55.504715][ T7279] RSP: 002b:000000c420051860 EFLAGS: 00000246 ORIG_RAX: 0000000000000119
[   55.513116][ T7279] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000045b300
[   55.521063][ T7279] RDX: 0000000000000080 RSI: 000000c4200518a0 RDI: 0000000000000004
[   55.529012][ T7279] RBP: 000000c420051ea0 R08: 0000000000000000 R09: 0000000000000000
[   55.536965][ T7279] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000f
[   55.544937][ T7279] R13: 000000c4200222a0 R14: 0000000000000008 R15: ffffffffffffffff
[   55.554841][ T7279] Kernel Offset: disabled
[   55.559162][ T7279] Rebooting in 86400 seconds..