Warning: Permanently added '10.128.0.44' (ECDSA) to the list of known hosts.
2020/07/30 08:12:53 fuzzer started
2020/07/30 08:12:53 dialing manager at 10.128.0.105:32987
2020/07/30 08:12:54 syscalls: 3255
2020/07/30 08:12:54 code coverage: enabled
2020/07/30 08:12:54 comparison tracing: enabled
2020/07/30 08:12:54 extra coverage: enabled
2020/07/30 08:12:54 setuid sandbox: enabled
2020/07/30 08:12:54 namespace sandbox: enabled
2020/07/30 08:12:54 Android sandbox: /sys/fs/selinux/policy does not exist
2020/07/30 08:12:54 fault injection: enabled
2020/07/30 08:12:54 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/07/30 08:12:54 net packet injection: enabled
2020/07/30 08:12:54 net device setup: enabled
2020/07/30 08:12:54 concurrency sanitizer: enabled
2020/07/30 08:12:54 devlink PCI setup: PCI device 0000:00:10.0 is not available
2020/07/30 08:12:54 USB emulation: enabled
2020/07/30 08:12:54 suppressing KCSAN reports in functions: '__ext4_new_inode' 'alloc_pid' 'xas_clear_mark' 'generic_write_end' 
syzkaller login: [   31.788696][ T8640] ==================================================================
[   31.796800][ T8640] BUG: KCSAN: data-race in do_epoll_wait / ep_poll_callback
[   31.804058][ T8640] 
[   31.806375][ T8640] write to 0xffff888125db4dd0 of 8 bytes by interrupt on cpu 1:
[   31.813987][ T8640]  ep_poll_callback+0x29c/0x510
[   31.818829][ T8640]  __wake_up_common+0xbc/0x130
[   31.823573][ T8640]  __wake_up_sync_key+0x83/0xc0
[   31.828401][ T8640]  sock_def_readable+0x61/0xe0
[   31.833138][ T8640]  tcp_rcv_established+0x13c0/0x1520
[   31.838394][ T8640]  tcp_v4_do_rcv+0x25e/0x480
[   31.842953][ T8640]  tcp_v4_rcv+0x219b/0x2420
[   31.847424][ T8640]  ip_protocol_deliver_rcu+0x1f9/0x400
[   31.852852][ T8640]  ip_local_deliver+0x1d6/0x2a0
[   31.857673][ T8640]  ip_sublist_rcv+0x4d4/0x5a0
[   31.862420][ T8640]  ip_list_rcv+0x262/0x290
[   31.866808][ T8640]  __netif_receive_skb_list_core+0x34b/0x450
[   31.872756][ T8640]  __netif_receive_skb_list+0x298/0x310
[   31.878278][ T8640]  netif_receive_skb_list_internal+0xda/0x330
[   31.884324][ T8640]  napi_gro_receive+0x329/0x5a0
[   31.889150][ T8640]  receive_buf+0x7a4/0xcf0
[   31.893542][ T8640]  virtnet_poll+0x2fa/0x780
[   31.898033][ T8640]  napi_poll+0x178/0x4a0
[   31.902246][ T8640]  net_rx_action+0x1ba/0x530
[   31.906810][ T8640]  __do_softirq+0x198/0x360
[   31.911293][ T8640]  asm_call_on_stack+0xf/0x20
[   31.915954][ T8640]  do_softirq_own_stack+0x5d/0x80
[   31.920955][ T8640]  __irq_exit_rcu+0x115/0x120
[   31.925611][ T8640]  common_interrupt+0x14e/0x1e0
[   31.930431][ T8640]  asm_common_interrupt+0x1e/0x40
[   31.935427][ T8640] 
[   31.937729][ T8640] read to 0xffff888125db4dd0 of 8 bytes by task 8640 on cpu 0:
[   31.945243][ T8640]  do_epoll_wait+0x2e2/0x870
[   31.949803][ T8640]  __x64_sys_epoll_pwait+0x92/0x150
[   31.954968][ T8640]  do_syscall_64+0x51/0xb0
[   31.959356][ T8640]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   31.965226][ T8640] 
[   31.967524][ T8640] Reported by Kernel Concurrency Sanitizer on:
[   31.973647][ T8640] CPU: 0 PID: 8640 Comm: syz-fuzzer Not tainted 5.8.0-rc7-syzkaller #0
[   31.981847][ T8640] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   31.991870][ T8640] ==================================================================
[   31.999899][ T8640] Kernel panic - not syncing: panic_on_warn set ...
[   32.006456][ T8640] CPU: 0 PID: 8640 Comm: syz-fuzzer Not tainted 5.8.0-rc7-syzkaller #0
[   32.014657][ T8640] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   32.024681][ T8640] Call Trace:
[   32.027942][ T8640]  dump_stack+0x10f/0x19d
[   32.032243][ T8640]  panic+0x207/0x64a
[   32.036112][ T8640]  ? vprintk_emit+0x44a/0x4f0
[   32.040758][ T8640]  kcsan_report+0x684/0x690
[   32.045234][ T8640]  ? kcsan_setup_watchpoint+0x453/0x4d0
[   32.050749][ T8640]  ? do_epoll_wait+0x2e2/0x870
[   32.055482][ T8640]  ? __x64_sys_epoll_pwait+0x92/0x150
[   32.060820][ T8640]  ? do_syscall_64+0x51/0xb0
[   32.065384][ T8640]  ? entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   32.071453][ T8640]  ? ep_send_events_proc+0x4fd/0x620
[   32.076716][ T8640]  kcsan_setup_watchpoint+0x453/0x4d0
[   32.082068][ T8640]  do_epoll_wait+0x2e2/0x870
[   32.086643][ T8640]  ? debug_smp_processor_id+0x18/0x20
[   32.091989][ T8640]  __x64_sys_epoll_pwait+0x92/0x150
[   32.097169][ T8640]  do_syscall_64+0x51/0xb0
[   32.101556][ T8640]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   32.107416][ T8640] RIP: 0033:0x469240
[   32.111283][ T8640] 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
[   32.130977][ T8640] RSP: 002b:000000c00004f7f0 EFLAGS: 00000246 ORIG_RAX: 0000000000000119
[   32.139356][ T8640] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000469240
[   32.147298][ T8640] RDX: 0000000000000080 RSI: 000000c00004f840 RDI: 0000000000000003
[   32.155240][ T8640] RBP: 000000c00004fe40 R08: 0000000000000000 R09: 0000000000000000
[   32.163181][ T8640] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000003
[   32.171131][ T8640] R13: 000000c000000900 R14: 0000000000000040 R15: 0000000000000020
[   32.180108][ T8640] Kernel Offset: disabled
[   32.184414][ T8640] Rebooting in 86400 seconds..