Warning: Permanently added '10.128.1.18' (ECDSA) to the list of known hosts.
2019/10/21 18:52:09 fuzzer started
2019/10/21 18:52:10 dialing manager at 10.128.0.105:39747
2019/10/21 18:52:10 syscalls: 2524
2019/10/21 18:52:10 code coverage: enabled
2019/10/21 18:52:10 comparison tracing: enabled
2019/10/21 18:52:10 extra coverage: extra coverage is not supported by the kernel
2019/10/21 18:52:10 setuid sandbox: enabled
2019/10/21 18:52:10 namespace sandbox: enabled
2019/10/21 18:52:10 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/21 18:52:10 fault injection: enabled
2019/10/21 18:52:10 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/21 18:52:10 net packet injection: enabled
2019/10/21 18:52:10 net device setup: enabled
2019/10/21 18:52:10 concurrency sanitizer: enabled
syzkaller login: [   45.569974][ T7183] ==================================================================
[   45.578124][ T7183] BUG: KCSAN: data-race in tcp_poll / tcp_queue_rcv
[   45.585665][ T7183] 
[   45.588010][ T7183] write to 0xffff888125c36e78 of 4 bytes by interrupt on cpu 0:
[   45.595706][ T7183]  tcp_queue_rcv+0xe9/0x380
[   45.600236][ T7183]  tcp_rcv_established+0xbf1/0xf50
[   45.605348][ T7183]  tcp_v4_do_rcv+0x381/0x4e0
[   45.609926][ T7183]  tcp_v4_rcv+0x19dc/0x1bb0
[   45.614618][ T7183]  ip_protocol_deliver_rcu+0x4d/0x420
[   45.620511][ T7183]  ip_local_deliver_finish+0x110/0x140
[   45.625964][ T7183]  ip_local_deliver+0x133/0x210
[   45.630880][ T7183]  ip_rcv_finish+0x121/0x160
[   45.635459][ T7183]  ip_rcv+0x18f/0x1a0
[   45.639439][ T7183]  __netif_receive_skb_one_core+0xa7/0xe0
[   45.645236][ T7183]  __netif_receive_skb+0x37/0xf0
[   45.650238][ T7183]  netif_receive_skb_internal+0x59/0x190
[   45.655852][ T7183]  napi_gro_receive+0x28f/0x330
[   45.660717][ T7183]  receive_buf+0x284/0x30b0
[   45.665193][ T7183] 
[   45.667516][ T7183] read to 0xffff888125c36e78 of 4 bytes by task 7183 on cpu 1:
[   45.675165][ T7183]  tcp_poll+0x204/0x6b0
[   45.685042][ T7183]  sock_poll+0xed/0x250
[   45.689210][ T7183]  ep_item_poll.isra.0+0x90/0x190
[   45.694213][ T7183]  ep_send_events_proc+0x113/0x590
[   45.700103][ T7183]  ep_scan_ready_list.constprop.0+0x189/0x500
[   45.706147][ T7183]  ep_poll+0xe3/0x900
[   45.710118][ T7183]  do_epoll_wait+0x162/0x180
[   45.714791][ T7183]  __x64_sys_epoll_pwait+0xcd/0x180
[   45.719969][ T7183]  do_syscall_64+0xcc/0x370
[   45.724464][ T7183]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   45.730340][ T7183] 
[   45.732642][ T7183] Reported by Kernel Concurrency Sanitizer on:
[   45.738771][ T7183] CPU: 1 PID: 7183 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   45.746210][ T7183] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   45.756261][ T7183] ==================================================================
[   45.764330][ T7183] Kernel panic - not syncing: panic_on_warn set ...
[   45.770921][ T7183] CPU: 1 PID: 7183 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   45.778468][ T7183] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   45.788515][ T7183] Call Trace:
[   45.791843][ T7183]  dump_stack+0xf5/0x159
[   45.796079][ T7183]  panic+0x210/0x640
[   45.800016][ T7183]  ? do_syscall_64+0xcc/0x370
[   45.805283][ T7183]  ? vprintk_func+0x8d/0x140
[   45.809855][ T7183]  kcsan_report.cold+0xc/0x10
[   45.814527][ T7183]  __kcsan_setup_watchpoint+0x32e/0x4a0
[   45.820145][ T7183]  __tsan_read4+0x2c/0x30
[   45.825239][ T7183]  tcp_poll+0x204/0x6b0
[   45.829383][ T7183]  ? tcp_alloc_md5sig_pool+0x320/0x320
[   45.834826][ T7183]  sock_poll+0xed/0x250
[   45.838965][ T7183]  ? sock_read_iter+0x1e0/0x1e0
[   45.843974][ T7183]  ep_item_poll.isra.0+0x90/0x190
[   45.849000][ T7183]  ep_send_events_proc+0x113/0x590
[   45.854112][ T7183]  ? __schedule+0x319/0x640
[   45.858620][ T7183]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   45.864238][ T7183]  ep_scan_ready_list.constprop.0+0x189/0x500
[   45.870328][ T7183]  ? ep_loop_check_proc+0x2f0/0x2f0
[   45.875504][ T7183]  ep_poll+0xe3/0x900
[   45.879472][ T7183]  ? wake_up_q+0x70/0x70
[   45.883694][ T7183]  do_epoll_wait+0x162/0x180
[   45.888266][ T7183]  __x64_sys_epoll_pwait+0xcd/0x180
[   45.893466][ T7183]  do_syscall_64+0xcc/0x370
[   45.897950][ T7183]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   45.903819][ T7183] RIP: 0033:0x45b300
[   45.907698][ T7183] 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
[   45.927281][ T7183] RSP: 002b:000000c42004b860 EFLAGS: 00000246 ORIG_RAX: 0000000000000119
[   45.935683][ T7183] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 000000000045b300
[   45.944244][ T7183] RDX: 0000000000000080 RSI: 000000c42004b8a0 RDI: 0000000000000004
[   45.952397][ T7183] RBP: 000000c42004bea0 R08: 0000000000000000 R09: 0000000000000000
[   45.960455][ T7183] R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000000010
[   45.968416][ T7183] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff
[   45.977925][ T7183] Kernel Offset: disabled
[   45.982250][ T7183] Rebooting in 86400 seconds..