Warning: Permanently added '10.128.0.71' (ECDSA) to the list of known hosts. 2019/10/22 02:59:59 fuzzer started 2019/10/22 03:00:00 dialing manager at 10.128.0.105:37053 2019/10/22 03:00:00 syscalls: 2524 2019/10/22 03:00:00 code coverage: enabled 2019/10/22 03:00:00 comparison tracing: enabled 2019/10/22 03:00:00 extra coverage: extra coverage is not supported by the kernel 2019/10/22 03:00:00 setuid sandbox: enabled 2019/10/22 03:00:00 namespace sandbox: enabled 2019/10/22 03:00:00 Android sandbox: /sys/fs/selinux/policy does not exist 2019/10/22 03:00:00 fault injection: enabled 2019/10/22 03:00:00 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/10/22 03:00:00 net packet injection: enabled 2019/10/22 03:00:00 net device setup: enabled 2019/10/22 03:00:00 concurrency sanitizer: enabled syzkaller login: [ 57.804771][ T7347] ================================================================== [ 57.813274][ T7347] BUG: KCSAN: data-race in __nf_conntrack_find_get / __nf_ct_refresh_acct [ 57.822094][ T7347] [ 57.824411][ T7347] read to 0xffff88811d530708 of 4 bytes by interrupt on cpu 0: [ 57.831944][ T7347] __nf_conntrack_find_get+0x284/0x880 [ 57.837666][ T7347] nf_conntrack_in+0x2ef/0xa80 [ 57.842421][ T7347] ipv4_conntrack_in+0x27/0x40 [ 57.847168][ T7347] nf_hook_slow+0x83/0x160 [ 57.851571][ T7347] ip_rcv+0x12f/0x1a0 [ 57.855652][ T7347] __netif_receive_skb_one_core+0xa7/0xe0 [ 57.865303][ T7347] __netif_receive_skb+0x37/0xf0 [ 57.870661][ T7347] netif_receive_skb_internal+0x59/0x190 [ 57.876485][ T7347] napi_gro_receive+0x28f/0x330 [ 57.881355][ T7347] receive_buf+0x284/0x30b0 [ 57.888464][ T7347] virtnet_poll+0x436/0x7d0 [ 57.892987][ T7347] net_rx_action+0x3ae/0xa90 [ 57.897584][ T7347] __do_softirq+0x115/0x33f [ 57.902074][ T7347] run_ksoftirqd+0x46/0x60 [ 57.906503][ T7347] [ 57.908999][ T7347] write to 0xffff88811d530708 of 4 bytes by task 7347 on cpu 1: [ 57.917206][ T7347] __nf_ct_refresh_acct+0xfb/0x1b0 [ 57.922304][ T7347] nf_conntrack_tcp_packet+0xd40/0x3390 [ 57.928440][ T7347] nf_conntrack_in+0x410/0xa80 [ 57.933794][ T7347] ipv4_conntrack_local+0xbe/0x130 [ 57.938919][ T7347] nf_hook_slow+0x83/0x160 [ 57.943416][ T7347] __ip_local_out+0x1f7/0x2b0 [ 57.948657][ T7347] ip_local_out+0x31/0x90 [ 57.953116][ T7347] __ip_queue_xmit+0x3a8/0xa40 [ 57.958716][ T7347] ip_queue_xmit+0x45/0x60 [ 57.963314][ T7347] __tcp_transmit_skb+0xe81/0x1d60 [ 57.968503][ T7347] __tcp_send_ack+0x246/0x300 [ 57.973171][ T7347] tcp_send_ack+0x34/0x40 [ 57.977706][ T7347] tcp_cleanup_rbuf+0x130/0x360 [ 57.983317][ T7347] [ 57.985712][ T7347] Reported by Kernel Concurrency Sanitizer on: [ 57.992084][ T7347] CPU: 1 PID: 7347 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0 [ 57.999527][ T7347] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.009562][ T7347] ================================================================== [ 58.017879][ T7347] Kernel panic - not syncing: panic_on_warn set ... [ 58.024543][ T7347] CPU: 1 PID: 7347 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0 [ 58.031993][ T7347] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.042036][ T7347] Call Trace: [ 58.045321][ T7347] dump_stack+0xf5/0x159 [ 58.049620][ T7347] panic+0x210/0x640 [ 58.053537][ T7347] ? ip_queue_xmit+0x45/0x60 [ 58.058238][ T7347] ? vprintk_func+0x8d/0x140 [ 58.062841][ T7347] kcsan_report.cold+0xc/0x10 [ 58.067528][ T7347] __kcsan_setup_watchpoint+0x32e/0x4a0 [ 58.073165][ T7347] __tsan_write4+0x32/0x40 [ 58.078136][ T7347] __nf_ct_refresh_acct+0xfb/0x1b0 [ 58.083487][ T7347] nf_conntrack_tcp_packet+0xd40/0x3390 [ 58.089327][ T7347] ? __kcsan_setup_watchpoint+0x6b/0x4a0 [ 58.095140][ T7347] nf_conntrack_in+0x410/0xa80 [ 58.100162][ T7347] ipv4_conntrack_local+0xbe/0x130 [ 58.105261][ T7347] nf_hook_slow+0x83/0x160 [ 58.109659][ T7347] ? nf_ct_tcp_fixup+0xe0/0xe0 [ 58.114685][ T7347] __ip_local_out+0x1f7/0x2b0 [ 58.119726][ T7347] ? constant_test_bit+0x30/0x30 [ 58.124698][ T7347] ip_local_out+0x31/0x90 [ 58.129035][ T7347] __ip_queue_xmit+0x3a8/0xa40 [ 58.133865][ T7347] ip_queue_xmit+0x45/0x60 [ 58.138305][ T7347] __tcp_transmit_skb+0xe81/0x1d60 [ 58.143413][ T7347] __tcp_send_ack+0x246/0x300 [ 58.148101][ T7347] tcp_send_ack+0x34/0x40 [ 58.152487][ T7347] tcp_cleanup_rbuf+0x130/0x360 [ 58.157489][ T7347] tcp_recvmsg+0x633/0x1a30 [ 58.162399][ T7347] inet_recvmsg+0xbb/0x250 [ 58.166806][ T7347] ? __tsan_read8+0x2c/0x30 [ 58.171300][ T7347] ? inet_sendpage+0x100/0x100 [ 58.176053][ T7347] sock_recvmsg+0x92/0xb0 [ 58.180418][ T7347] sock_read_iter+0x15f/0x1e0 [ 58.185116][ T7347] new_sync_read+0x389/0x4f0 [ 58.189702][ T7347] __vfs_read+0xb1/0xc0 [ 58.193863][ T7347] vfs_read+0x143/0x2c0 [ 58.198009][ T7347] ksys_read+0xd5/0x1b0 [ 58.202348][ T7347] __x64_sys_read+0x4c/0x60 [ 58.206852][ T7347] do_syscall_64+0xcc/0x370 [ 58.211375][ T7347] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 58.217253][ T7347] RIP: 0033:0x47c530 [ 58.221156][ T7347] 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 [ 58.241156][ T7347] RSP: 002b:000000c4203b7850 EFLAGS: 00000206 ORIG_RAX: 0000000000000000 [ 58.249554][ T7347] RAX: ffffffffffffffda RBX: 000000c4202d2c00 RCX: 000000000047c530 [ 58.257524][ T7347] RDX: 0000000000001000 RSI: 000000c42019a000 RDI: 0000000000000003 [ 58.266328][ T7347] RBP: 000000c4203b78a8 R08: 0000000000000000 R09: 0000000000000000 [ 58.274488][ T7347] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000003 [ 58.282459][ T7347] R13: 000000c42007f938 R14: 0000000000000002 R15: ffffffffffffffff [ 58.292646][ T7347] Kernel Offset: disabled [ 58.297108][ T7347] Rebooting in 86400 seconds..