Warning: Permanently added '10.128.0.43' (ECDSA) to the list of known hosts.
2019/10/22 17:51:43 fuzzer started
2019/10/22 17:51:45 dialing manager at 10.128.0.105:33369
2019/10/22 17:51:45 syscalls: 2524
2019/10/22 17:51:45 code coverage: enabled
2019/10/22 17:51:45 comparison tracing: enabled
2019/10/22 17:51:45 extra coverage: extra coverage is not supported by the kernel
2019/10/22 17:51:45 setuid sandbox: enabled
2019/10/22 17:51:45 namespace sandbox: enabled
2019/10/22 17:51:45 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/22 17:51:45 fault injection: enabled
2019/10/22 17:51:45 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/22 17:51:45 net packet injection: enabled
2019/10/22 17:51:45 net device setup: enabled
2019/10/22 17:51:45 concurrency sanitizer: enabled
syzkaller login: [   48.205301][ T7213] ==================================================================
[   48.213501][ T7213] BUG: KCSAN: data-race in tcp_poll / tcp_queue_rcv
[   48.220074][ T7213] 
[   48.222387][ T7213] write to 0xffff88812516f778 of 4 bytes by interrupt on cpu 0:
[   48.230095][ T7213]  tcp_queue_rcv+0xe9/0x380
[   48.234585][ T7213]  tcp_rcv_established+0xbf1/0xf50
[   48.239740][ T7213]  tcp_v4_do_rcv+0x381/0x4e0
[   48.244315][ T7213]  tcp_v4_rcv+0x19dc/0x1bb0
[   48.248874][ T7213]  ip_protocol_deliver_rcu+0x4d/0x420
[   48.254235][ T7213]  ip_local_deliver_finish+0x110/0x140
[   48.259678][ T7213]  ip_local_deliver+0x133/0x210
[   48.264595][ T7213]  ip_rcv_finish+0x121/0x160
[   48.269162][ T7213]  ip_rcv+0x18f/0x1a0
[   48.273151][ T7213]  __netif_receive_skb_one_core+0xa7/0xe0
[   48.278977][ T7213]  __netif_receive_skb+0x37/0xf0
[   48.283899][ T7213]  netif_receive_skb_internal+0x59/0x190
[   48.289552][ T7213]  napi_gro_receive+0x28f/0x330
[   48.294393][ T7213]  receive_buf+0x284/0x30b0
[   48.298873][ T7213] 
[   48.301188][ T7213] read to 0xffff88812516f778 of 4 bytes by task 7213 on cpu 1:
[   48.308744][ T7213]  tcp_poll+0x204/0x6b0
[   48.312983][ T7213]  sock_poll+0xed/0x250
[   48.317125][ T7213]  ep_item_poll.isra.0+0x90/0x190
[   48.322130][ T7213]  ep_send_events_proc+0x113/0x590
[   48.327252][ T7213]  ep_scan_ready_list.constprop.0+0x189/0x500
[   48.333302][ T7213]  ep_poll+0xe3/0x900
[   48.337267][ T7213]  do_epoll_wait+0x162/0x180
[   48.341869][ T7213]  __x64_sys_epoll_pwait+0xcd/0x180
[   48.347054][ T7213]  do_syscall_64+0xcc/0x370
[   48.351640][ T7213]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   48.357511][ T7213] 
[   48.360516][ T7213] Reported by Kernel Concurrency Sanitizer on:
[   48.366688][ T7213] CPU: 1 PID: 7213 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   48.374121][ T7213] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   48.384160][ T7213] ==================================================================
[   48.392236][ T7213] Kernel panic - not syncing: panic_on_warn set ...
[   48.398808][ T7213] CPU: 1 PID: 7213 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   48.406272][ T7213] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   48.416349][ T7213] Call Trace:
[   48.419626][ T7213]  dump_stack+0xf5/0x159
[   48.423857][ T7213]  panic+0x210/0x640
[   48.427739][ T7213]  ? do_syscall_64+0xcc/0x370
[   48.432420][ T7213]  ? vprintk_func+0x8d/0x140
[   48.437008][ T7213]  kcsan_report.cold+0xc/0x10
[   48.441698][ T7213]  __kcsan_setup_watchpoint+0x32e/0x4a0
[   48.447241][ T7213]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[   48.452948][ T7213]  __tsan_read4+0x2c/0x30
[   48.457264][ T7213]  tcp_poll+0x204/0x6b0
[   48.461450][ T7213]  ? tcp_alloc_md5sig_pool+0x320/0x320
[   48.466898][ T7213]  sock_poll+0xed/0x250
[   48.471044][ T7213]  ? sock_read_iter+0x1e0/0x1e0
[   48.475880][ T7213]  ep_item_poll.isra.0+0x90/0x190
[   48.480893][ T7213]  ep_send_events_proc+0x113/0x590
[   48.485992][ T7213]  ? __schedule+0x319/0x640
[   48.490477][ T7213]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   48.496101][ T7213]  ep_scan_ready_list.constprop.0+0x189/0x500
[   48.502153][ T7213]  ? ep_loop_check_proc+0x2f0/0x2f0
[   48.507516][ T7213]  ep_poll+0xe3/0x900
[   48.511488][ T7213]  ? wake_up_q+0x70/0x70
[   48.515721][ T7213]  do_epoll_wait+0x162/0x180
[   48.520329][ T7213]  __x64_sys_epoll_pwait+0xcd/0x180
[   48.525546][ T7213]  do_syscall_64+0xcc/0x370
[   48.530036][ T7213]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   48.536355][ T7213] RIP: 0033:0x45b300
[   48.540268][ T7213] 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
[   48.559854][ T7213] RSP: 002b:00007ffc2a7bbbf0 EFLAGS: 00000246 ORIG_RAX: 0000000000000119
[   48.568277][ T7213] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 000000000045b300
[   48.576235][ T7213] RDX: 0000000000000080 RSI: 00007ffc2a7bbc30 RDI: 0000000000000004
[   48.584275][ T7213] RBP: 00007ffc2a7bc230 R08: 0000000000000000 R09: 0000000000000000
[   48.592350][ T7213] R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000000010
[   48.600338][ T7213] R13: ffffffffffffffff R14: 0000000000000004 R15: ffffffffffffffff
[   48.610015][ T7213] Kernel Offset: disabled
[   48.614338][ T7213] Rebooting in 86400 seconds..