Warning: Permanently added '10.128.0.208' (ECDSA) to the list of known hosts. 2019/10/04 15:36:21 fuzzer started 2019/10/04 15:36:22 dialing manager at 10.128.0.105:44881 2019/10/04 15:36:22 syscalls: 2523 2019/10/04 15:36:22 code coverage: enabled 2019/10/04 15:36:22 comparison tracing: enabled 2019/10/04 15:36:22 extra coverage: extra coverage is not supported by the kernel 2019/10/04 15:36:22 setuid sandbox: enabled 2019/10/04 15:36:22 namespace sandbox: enabled 2019/10/04 15:36:22 Android sandbox: /sys/fs/selinux/policy does not exist 2019/10/04 15:36:22 fault injection: enabled 2019/10/04 15:36:22 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/10/04 15:36:22 net packet injection: enabled 2019/10/04 15:36:22 net device setup: enabled 2019/10/04 15:36:22 concurrency sanitizer: enabled syzkaller login: [ 46.751618][ T7191] ================================================================== [ 46.759788][ T7191] BUG: KCSAN: data-race in __nf_ct_refresh_acct / __nf_ct_refresh_acct [ 46.767997][ T7191] [ 46.770309][ T7191] read to 0xffff888123eb4f08 of 4 bytes by interrupt on cpu 0: [ 46.777873][ T7191] __nf_ct_refresh_acct+0xd4/0x1b0 [ 46.782998][ T7191] nf_conntrack_tcp_packet+0xd40/0x3390 [ 46.788557][ T7191] nf_conntrack_in+0x410/0xaa0 [ 46.793299][ T7191] ipv4_conntrack_in+0x27/0x40 [ 46.798050][ T7191] nf_hook_slow+0x83/0x160 [ 46.802443][ T7191] ip_rcv+0x12f/0x1a0 [ 46.806403][ T7191] __netif_receive_skb_one_core+0xa7/0xe0 [ 46.812146][ T7191] __netif_receive_skb+0x37/0xf0 [ 46.817092][ T7191] netif_receive_skb_internal+0x59/0x190 [ 46.822699][ T7191] napi_gro_receive+0x28f/0x330 [ 46.827566][ T7191] receive_buf+0x284/0x30b0 [ 46.832052][ T7191] virtnet_poll+0x436/0x7d0 [ 46.836531][ T7191] net_rx_action+0x3ae/0xa50 [ 46.841099][ T7191] __do_softirq+0x115/0x33f [ 46.845572][ T7191] [ 46.847890][ T7191] write to 0xffff888123eb4f08 of 4 bytes by task 7191 on cpu 1: [ 46.855499][ T7191] __nf_ct_refresh_acct+0xfb/0x1b0 [ 46.860608][ T7191] nf_conntrack_tcp_packet+0xd40/0x3390 [ 46.866140][ T7191] nf_conntrack_in+0x410/0xaa0 [ 46.870893][ T7191] ipv4_conntrack_local+0xbe/0x130 [ 46.875986][ T7191] nf_hook_slow+0x83/0x160 [ 46.880395][ T7191] __ip_local_out+0x1f7/0x2b0 [ 46.885051][ T7191] ip_local_out+0x31/0x90 [ 46.889357][ T7191] __ip_queue_xmit+0x3a8/0xa40 [ 46.894095][ T7191] ip_queue_xmit+0x45/0x60 [ 46.898490][ T7191] __tcp_transmit_skb+0xdeb/0x1cd0 [ 46.903580][ T7191] __tcp_send_ack+0x246/0x300 [ 46.908247][ T7191] tcp_send_ack+0x34/0x40 [ 46.912551][ T7191] tcp_cleanup_rbuf+0x130/0x360 [ 46.917382][ T7191] [ 46.919696][ T7191] Reported by Kernel Concurrency Sanitizer on: [ 46.925835][ T7191] CPU: 1 PID: 7191 Comm: syz-fuzzer Not tainted 5.3.0+ #0 [ 46.932930][ T7191] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.943070][ T7191] ================================================================== [ 46.951108][ T7191] Kernel panic - not syncing: panic_on_warn set ... [ 46.957751][ T7191] CPU: 1 PID: 7191 Comm: syz-fuzzer Not tainted 5.3.0+ #0 [ 46.964851][ T7191] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.974889][ T7191] Call Trace: [ 46.978175][ T7191] dump_stack+0xf5/0x159 [ 46.982398][ T7191] panic+0x209/0x639 [ 46.986285][ T7191] ? vprintk_func+0x8d/0x140 [ 46.990866][ T7191] kcsan_report.cold+0x57/0xeb [ 46.995637][ T7191] __kcsan_setup_watchpoint+0x342/0x500 [ 47.001160][ T7191] __tsan_write4+0x32/0x40 [ 47.005558][ T7191] __nf_ct_refresh_acct+0xfb/0x1b0 [ 47.010650][ T7191] nf_conntrack_tcp_packet+0xd40/0x3390 [ 47.016194][ T7191] nf_conntrack_in+0x410/0xaa0 [ 47.020943][ T7191] ipv4_conntrack_local+0xbe/0x130 [ 47.026047][ T7191] nf_hook_slow+0x83/0x160 [ 47.030451][ T7191] ? nf_ct_tcp_fixup+0xe0/0xe0 [ 47.035206][ T7191] __ip_local_out+0x1f7/0x2b0 [ 47.039874][ T7191] ? constant_test_bit+0x30/0x30 [ 47.044806][ T7191] ip_local_out+0x31/0x90 [ 47.049128][ T7191] __ip_queue_xmit+0x3a8/0xa40 [ 47.053878][ T7191] ip_queue_xmit+0x45/0x60 [ 47.058276][ T7191] __tcp_transmit_skb+0xdeb/0x1cd0 [ 47.063386][ T7191] __tcp_send_ack+0x246/0x300 [ 47.068060][ T7191] tcp_send_ack+0x34/0x40 [ 47.072381][ T7191] tcp_cleanup_rbuf+0x130/0x360 [ 47.077211][ T7191] tcp_recvmsg+0x633/0x1a30 [ 47.081711][ T7191] ? __tsan_read8+0x2c/0x30 [ 47.086219][ T7191] inet_recvmsg+0xbb/0x250 [ 47.090627][ T7191] ? __tsan_read8+0x2c/0x30 [ 47.095117][ T7191] ? inet_sendpage+0x100/0x100 [ 47.099871][ T7191] sock_recvmsg+0x92/0xb0 [ 47.104177][ T7191] sock_read_iter+0x15f/0x1e0 [ 47.108840][ T7191] new_sync_read+0x389/0x4f0 [ 47.113415][ T7191] __vfs_read+0xb1/0xc0 [ 47.117553][ T7191] vfs_read+0x143/0x2c0 [ 47.121691][ T7191] ksys_read+0xd5/0x1b0 [ 47.125839][ T7191] __x64_sys_read+0x4c/0x60 [ 47.130336][ T7191] do_syscall_64+0xcf/0x2f0 [ 47.134834][ T7191] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 47.140703][ T7191] RIP: 0033:0x47c530 [ 47.144589][ T7191] 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 [ 47.164613][ T7191] RSP: 002b:000000c4203397d8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 47.173012][ T7191] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530 [ 47.180972][ T7191] RDX: 0000000000001000 RSI: 000000c4202e6000 RDI: 0000000000000003 [ 47.188933][ T7191] RBP: 000000c420339830 R08: 0000000000000000 R09: 0000000000000000 [ 47.196896][ T7191] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000002 [ 47.204846][ T7191] R13: ffffffffffffffff R14: 0000000000000008 R15: ffffffffffffffff [ 47.214125][ T7191] Kernel Offset: disabled [ 47.218471][ T7191] Rebooting in 86400 seconds..