Warning: Permanently added '10.128.0.212' (ECDSA) to the list of known hosts.
2019/11/03 21:34:22 fuzzer started
2019/11/03 21:34:24 dialing manager at 10.128.0.105:42255
2019/11/03 21:34:24 syscalls: 2553
2019/11/03 21:34:24 code coverage: enabled
2019/11/03 21:34:24 comparison tracing: enabled
2019/11/03 21:34:24 extra coverage: extra coverage is not supported by the kernel
2019/11/03 21:34:24 setuid sandbox: enabled
2019/11/03 21:34:24 namespace sandbox: enabled
2019/11/03 21:34:24 Android sandbox: /sys/fs/selinux/policy does not exist
2019/11/03 21:34:24 fault injection: enabled
2019/11/03 21:34:24 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/11/03 21:34:24 net packet injection: enabled
2019/11/03 21:34:24 net device setup: enabled
2019/11/03 21:34:24 concurrency sanitizer: enabled
2019/11/03 21:34:24 devlink PCI setup: PCI device 0000:00:10.0 is not available
2019/11/03 21:34:27 adding functions to KCSAN blacklist: 'pid_update_inode' 'ktime_get_real_seconds' '__tcp_select_window' '__hrtimer_run_queues' 'tomoyo_supervisor' '__splice_from_pipe' 'generic_write_end' 'blk_mq_get_request' 'tcp_poll' 'tick_sched_do_timer' 'get_wchan' 'ext4_free_inode' 'tcp_add_backlog' 'vm_area_dup' 'generic_permission' 'audit_log_start' 'find_next_bit' 
syzkaller login: [   51.843587][ T7215] ==================================================================
[   51.851712][ T7215] BUG: KCSAN: data-race in __nf_conntrack_find_get / __nf_ct_refresh_acct
[   51.860190][ T7215] 
[   51.862497][ T7215] read to 0xffff888126911f08 of 4 bytes by interrupt on cpu 0:
[   51.870016][ T7215]  __nf_conntrack_find_get+0x284/0x880
[   51.875450][ T7215]  nf_conntrack_in+0x2ef/0xa80
[   51.880188][ T7215]  ipv4_conntrack_in+0x27/0x40
[   51.884929][ T7215]  nf_hook_slow+0x83/0x160
[   51.889321][ T7215]  ip_rcv+0x12f/0x1a0
[   51.893279][ T7215]  __netif_receive_skb_one_core+0xa7/0xe0
[   51.898969][ T7215]  __netif_receive_skb+0x37/0xf0
[   51.903879][ T7215]  netif_receive_skb_internal+0x59/0x190
[   51.909484][ T7215]  napi_gro_receive+0x28f/0x330
[   51.914310][ T7215]  receive_buf+0x284/0x30b0
[   51.918785][ T7215]  virtnet_poll+0x436/0x7d0
[   51.923278][ T7215]  net_rx_action+0x3ae/0xa90
[   51.927844][ T7215]  __do_softirq+0x115/0x33f
[   51.932319][ T7215]  irq_exit+0xbb/0xe0
[   51.936268][ T7215] 
[   51.938574][ T7215] write to 0xffff888126911f08 of 4 bytes by task 7215 on cpu 1:
[   51.946188][ T7215]  __nf_ct_refresh_acct+0xfb/0x1b0
[   51.951274][ T7215]  nf_conntrack_tcp_packet+0xd40/0x3390
[   51.956794][ T7215]  nf_conntrack_in+0x410/0xa80
[   51.961530][ T7215]  ipv4_conntrack_local+0xbe/0x130
[   51.966615][ T7215]  nf_hook_slow+0x83/0x160
[   51.971007][ T7215]  __ip_local_out+0x1f7/0x2b0
[   51.975655][ T7215]  ip_local_out+0x31/0x90
[   51.979958][ T7215]  __ip_queue_xmit+0x3a8/0xa40
[   51.984695][ T7215]  ip_queue_xmit+0x45/0x60
[   51.989097][ T7215]  __tcp_transmit_skb+0xe81/0x1d60
[   51.994180][ T7215]  __tcp_send_ack+0x246/0x300
[   51.998829][ T7215]  tcp_send_ack+0x34/0x40
[   52.003132][ T7215]  tcp_cleanup_rbuf+0x130/0x360
[   52.007948][ T7215] 
[   52.010248][ T7215] Reported by Kernel Concurrency Sanitizer on:
[   52.016374][ T7215] CPU: 1 PID: 7215 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   52.023797][ T7215] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   52.033824][ T7215] ==================================================================
[   52.041870][ T7215] Kernel panic - not syncing: panic_on_warn set ...
[   52.048518][ T7215] CPU: 1 PID: 7215 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   52.055943][ T7215] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   52.065982][ T7215] Call Trace:
[   52.069299][ T7215]  dump_stack+0xf5/0x159
[   52.073535][ T7215]  panic+0x210/0x640
[   52.077415][ T7215]  ? ip_queue_xmit+0x45/0x60
[   52.081986][ T7215]  ? vprintk_func+0x8d/0x140
[   52.086556][ T7215]  kcsan_report.cold+0xc/0x10
[   52.091209][ T7215]  __kcsan_setup_watchpoint+0x32e/0x4a0
[   52.096733][ T7215]  __tsan_write4+0x32/0x40
[   52.101125][ T7215]  __nf_ct_refresh_acct+0xfb/0x1b0
[   52.106230][ T7215]  nf_conntrack_tcp_packet+0xd40/0x3390
[   52.111760][ T7215]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   52.117369][ T7215]  nf_conntrack_in+0x410/0xa80
[   52.122113][ T7215]  ipv4_conntrack_local+0xbe/0x130
[   52.127214][ T7215]  nf_hook_slow+0x83/0x160
[   52.131602][ T7215]  ? nf_ct_tcp_fixup+0xe0/0xe0
[   52.136343][ T7215]  __ip_local_out+0x1f7/0x2b0
[   52.141006][ T7215]  ? constant_test_bit+0x30/0x30
[   52.145940][ T7215]  ip_local_out+0x31/0x90
[   52.150258][ T7215]  __ip_queue_xmit+0x3a8/0xa40
[   52.155016][ T7215]  ip_queue_xmit+0x45/0x60
[   52.159416][ T7215]  __tcp_transmit_skb+0xe81/0x1d60
[   52.164509][ T7215]  __tcp_send_ack+0x246/0x300
[   52.169162][ T7215]  tcp_send_ack+0x34/0x40
[   52.173466][ T7215]  tcp_cleanup_rbuf+0x130/0x360
[   52.178295][ T7215]  tcp_recvmsg+0x633/0x1a30
[   52.182780][ T7215]  inet_recvmsg+0xbb/0x250
[   52.187171][ T7215]  ? __tsan_read8+0x2c/0x30
[   52.191651][ T7215]  ? inet_sendpage+0x100/0x100
[   52.196392][ T7215]  sock_recvmsg+0x92/0xb0
[   52.200700][ T7215]  sock_read_iter+0x15f/0x1e0
[   52.205355][ T7215]  new_sync_read+0x389/0x4f0
[   52.209957][ T7215]  __vfs_read+0xb1/0xc0
[   52.214086][ T7215]  vfs_read+0x143/0x2c0
[   52.218218][ T7215]  ksys_read+0xd5/0x1b0
[   52.222351][ T7215]  __x64_sys_read+0x4c/0x60
[   52.226833][ T7215]  do_syscall_64+0xcc/0x370
[   52.231310][ T7215]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   52.237176][ T7215] RIP: 0033:0x47c530
[   52.241048][ T7215] Code: 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 49 c7 c2 00 00 00 00 49 c7 c0 00 00 00 00 49 c7 c1 00 00 00 00 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30
[   52.260638][ T7215] RSP: 002b:000000c4203c37d0 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
[   52.269148][ T7215] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   52.277137][ T7215] RDX: 0000000000001000 RSI: 000000c42019a000 RDI: 0000000000000003
[   52.285244][ T7215] RBP: 000000c4203c3828 R08: 0000000000000000 R09: 0000000000000000
[   52.293188][ T7215] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000008
[   52.301131][ T7215] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff
[   52.310395][ T7215] Kernel Offset: disabled
[   52.314711][ T7215] Rebooting in 86400 seconds..