Warning: Permanently added '10.128.10.28' (ECDSA) to the list of known hosts.
2019/10/21 16:09:31 fuzzer started
2019/10/21 16:09:32 dialing manager at 10.128.0.105:39747
2019/10/21 16:09:32 syscalls: 2524
2019/10/21 16:09:32 code coverage: enabled
2019/10/21 16:09:32 comparison tracing: enabled
2019/10/21 16:09:32 extra coverage: extra coverage is not supported by the kernel
2019/10/21 16:09:32 setuid sandbox: enabled
2019/10/21 16:09:32 namespace sandbox: enabled
2019/10/21 16:09:32 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/21 16:09:32 fault injection: enabled
2019/10/21 16:09:32 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/21 16:09:32 net packet injection: enabled
2019/10/21 16:09:32 net device setup: enabled
2019/10/21 16:09:32 concurrency sanitizer: enabled
syzkaller login: [   48.399872][ T7188] ==================================================================
[   48.408024][ T7188] BUG: KCSAN: data-race in tcp_poll / tcp_queue_rcv
[   48.414697][ T7188] 
[   48.417052][ T7188] write to 0xffff888125704e78 of 4 bytes by interrupt on cpu 1:
[   48.425526][ T7188]  tcp_queue_rcv+0xe9/0x380
[   48.430006][ T7188]  tcp_rcv_established+0xbf1/0xf50
[   48.435094][ T7188]  tcp_v4_do_rcv+0x381/0x4e0
[   48.439694][ T7188]  tcp_v4_rcv+0x19dc/0x1bb0
[   48.444175][ T7188]  ip_protocol_deliver_rcu+0x4d/0x420
[   48.449697][ T7188]  ip_local_deliver_finish+0x110/0x140
[   48.455162][ T7188]  ip_local_deliver+0x133/0x210
[   48.459999][ T7188]  ip_rcv_finish+0x121/0x160
[   48.464579][ T7188]  ip_rcv+0x18f/0x1a0
[   48.468539][ T7188]  __netif_receive_skb_one_core+0xa7/0xe0
[   48.474235][ T7188]  __netif_receive_skb+0x37/0xf0
[   48.479148][ T7188]  netif_receive_skb_internal+0x59/0x190
[   48.484758][ T7188]  napi_gro_receive+0x28f/0x330
[   48.489585][ T7188]  receive_buf+0x284/0x30b0
[   48.494074][ T7188] 
[   48.496381][ T7188] read to 0xffff888125704e78 of 4 bytes by task 7188 on cpu 0:
[   48.503911][ T7188]  tcp_poll+0x204/0x6b0
[   48.508069][ T7188]  sock_poll+0xed/0x250
[   48.512205][ T7188]  ep_item_poll.isra.0+0x90/0x190
[   48.517207][ T7188]  ep_send_events_proc+0x113/0x590
[   48.522294][ T7188]  ep_scan_ready_list.constprop.0+0x189/0x500
[   48.528347][ T7188]  ep_poll+0xe3/0x900
[   48.532302][ T7188]  do_epoll_wait+0x162/0x180
[   48.536869][ T7188]  __x64_sys_epoll_pwait+0xcd/0x180
[   48.542055][ T7188]  do_syscall_64+0xcc/0x370
[   48.546558][ T7188]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   48.552416][ T7188] 
[   48.554716][ T7188] Reported by Kernel Concurrency Sanitizer on:
[   48.560860][ T7188] CPU: 0 PID: 7188 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   48.568300][ T7188] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   48.578331][ T7188] ==================================================================
[   48.586366][ T7188] Kernel panic - not syncing: panic_on_warn set ...
[   48.592932][ T7188] CPU: 0 PID: 7188 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   48.600370][ T7188] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   48.610471][ T7188] Call Trace:
[   48.613759][ T7188]  dump_stack+0xf5/0x159
[   48.617982][ T7188]  panic+0x210/0x640
[   48.621860][ T7188]  ? do_syscall_64+0xcc/0x370
[   48.626513][ T7188]  ? vprintk_func+0x8d/0x140
[   48.631088][ T7188]  kcsan_report.cold+0xc/0x10
[   48.635745][ T7188]  __kcsan_setup_watchpoint+0x32e/0x4a0
[   48.641364][ T7188]  __tsan_read4+0x2c/0x30
[   48.645674][ T7188]  tcp_poll+0x204/0x6b0
[   48.649821][ T7188]  ? tcp_alloc_md5sig_pool+0x320/0x320
[   48.655281][ T7188]  sock_poll+0xed/0x250
[   48.659475][ T7188]  ? sock_read_iter+0x1e0/0x1e0
[   48.664309][ T7188]  ep_item_poll.isra.0+0x90/0x190
[   48.669317][ T7188]  ep_send_events_proc+0x113/0x590
[   48.674415][ T7188]  ? __schedule+0x319/0x640
[   48.678893][ T7188]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   48.684506][ T7188]  ep_scan_ready_list.constprop.0+0x189/0x500
[   48.690554][ T7188]  ? ep_loop_check_proc+0x2f0/0x2f0
[   48.695733][ T7188]  ep_poll+0xe3/0x900
[   48.699701][ T7188]  ? wake_up_q+0x70/0x70
[   48.703936][ T7188]  do_epoll_wait+0x162/0x180
[   48.708517][ T7188]  __x64_sys_epoll_pwait+0xcd/0x180
[   48.713708][ T7188]  do_syscall_64+0xcc/0x370
[   48.718190][ T7188]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   48.724070][ T7188] RIP: 0033:0x45b300
[   48.727956][ T7188] 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
[   48.747537][ T7188] RSP: 002b:000000c420149858 EFLAGS: 00000246 ORIG_RAX: 0000000000000119
[   48.755922][ T7188] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 000000000045b300
[   48.763871][ T7188] RDX: 0000000000000080 RSI: 000000c420149898 RDI: 0000000000000004
[   48.771826][ T7188] RBP: 000000c420149e98 R08: 0000000000000000 R09: 000000c420001680
[   48.779785][ T7188] R10: 00000000ffffffff R11: 0000000000000246 R12: 000000c4200666f8
[   48.787733][ T7188] R13: 00000000000000f3 R14: 0000000000000033 R15: 0000000000000007
[   48.797214][ T7188] Kernel Offset: disabled
[   48.801552][ T7188] Rebooting in 86400 seconds..