Warning: Permanently added '10.128.0.28' (ECDSA) to the list of known hosts. 2019/10/22 01:00:16 fuzzer started 2019/10/22 01:00:18 dialing manager at 10.128.0.105:37053 2019/10/22 01:00:18 syscalls: 2524 2019/10/22 01:00:18 code coverage: enabled 2019/10/22 01:00:18 comparison tracing: enabled 2019/10/22 01:00:18 extra coverage: extra coverage is not supported by the kernel 2019/10/22 01:00:18 setuid sandbox: enabled 2019/10/22 01:00:18 namespace sandbox: enabled 2019/10/22 01:00:18 Android sandbox: /sys/fs/selinux/policy does not exist 2019/10/22 01:00:18 fault injection: enabled 2019/10/22 01:00:18 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/10/22 01:00:18 net packet injection: enabled 2019/10/22 01:00:18 net device setup: enabled 2019/10/22 01:00:18 concurrency sanitizer: enabled syzkaller login: [ 47.658813][ T7276] ================================================================== [ 47.666959][ T7276] BUG: KCSAN: data-race in __nf_ct_refresh_acct / __nf_ct_refresh_acct [ 47.675365][ T7276] [ 47.677722][ T7276] read to 0xffff8881256fb108 of 4 bytes by interrupt on cpu 0: [ 47.685259][ T7276] __nf_ct_refresh_acct+0xd4/0x1b0 [ 47.690345][ T7276] nf_conntrack_tcp_packet+0xd40/0x3390 [ 47.695873][ T7276] nf_conntrack_in+0x410/0xa80 [ 47.700639][ T7276] ipv4_conntrack_in+0x27/0x40 [ 47.705391][ T7276] nf_hook_slow+0x83/0x160 [ 47.709782][ T7276] ip_rcv+0x12f/0x1a0 [ 47.713841][ T7276] __netif_receive_skb_one_core+0xa7/0xe0 [ 47.719555][ T7276] __netif_receive_skb+0x37/0xf0 [ 47.724472][ T7276] netif_receive_skb_internal+0x59/0x190 [ 47.730080][ T7276] napi_gro_receive+0x28f/0x330 [ 47.734913][ T7276] receive_buf+0x284/0x30b0 [ 47.739395][ T7276] virtnet_poll+0x436/0x7d0 [ 47.743875][ T7276] net_rx_action+0x3ae/0xa90 [ 47.748443][ T7276] __do_softirq+0x115/0x33f [ 47.752930][ T7276] [ 47.755243][ T7276] write to 0xffff8881256fb108 of 4 bytes by task 7276 on cpu 1: [ 47.762874][ T7276] __nf_ct_refresh_acct+0xfb/0x1b0 [ 47.767962][ T7276] nf_conntrack_tcp_packet+0xd40/0x3390 [ 47.773498][ T7276] nf_conntrack_in+0x410/0xa80 [ 47.778252][ T7276] ipv4_conntrack_local+0xbe/0x130 [ 47.783353][ T7276] nf_hook_slow+0x83/0x160 [ 47.787747][ T7276] __ip_local_out+0x1f7/0x2b0 [ 47.792400][ T7276] ip_local_out+0x31/0x90 [ 47.796795][ T7276] __ip_queue_xmit+0x3a8/0xa40 [ 47.801552][ T7276] ip_queue_xmit+0x45/0x60 [ 47.805964][ T7276] __tcp_transmit_skb+0xe81/0x1d60 [ 47.811053][ T7276] __tcp_send_ack+0x246/0x300 [ 47.815799][ T7276] tcp_send_ack+0x34/0x40 [ 47.820279][ T7276] tcp_cleanup_rbuf+0x130/0x360 [ 47.825112][ T7276] [ 47.827415][ T7276] Reported by Kernel Concurrency Sanitizer on: [ 47.833547][ T7276] CPU: 1 PID: 7276 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0 [ 47.840983][ T7276] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.851013][ T7276] ================================================================== [ 47.859225][ T7276] Kernel panic - not syncing: panic_on_warn set ... [ 47.865794][ T7276] CPU: 1 PID: 7276 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0 [ 47.873221][ T7276] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.885162][ T7276] Call Trace: [ 47.888443][ T7276] dump_stack+0xf5/0x159 [ 47.892675][ T7276] panic+0x210/0x640 [ 47.896549][ T7276] ? ip_queue_xmit+0x45/0x60 [ 47.901115][ T7276] ? vprintk_func+0x8d/0x140 [ 47.905682][ T7276] kcsan_report.cold+0xc/0x10 [ 47.910597][ T7276] __kcsan_setup_watchpoint+0x32e/0x4a0 [ 47.916219][ T7276] __tsan_write4+0x32/0x40 [ 47.920628][ T7276] __nf_ct_refresh_acct+0xfb/0x1b0 [ 47.925733][ T7276] nf_conntrack_tcp_packet+0xd40/0x3390 [ 47.931272][ T7276] ? __kcsan_setup_watchpoint+0x6b/0x4a0 [ 47.936991][ T7276] nf_conntrack_in+0x410/0xa80 [ 47.941752][ T7276] ipv4_conntrack_local+0xbe/0x130 [ 47.946861][ T7276] nf_hook_slow+0x83/0x160 [ 47.951267][ T7276] ? nf_ct_tcp_fixup+0xe0/0xe0 [ 47.956015][ T7276] __ip_local_out+0x1f7/0x2b0 [ 47.960777][ T7276] ? constant_test_bit+0x30/0x30 [ 47.966649][ T7276] ip_local_out+0x31/0x90 [ 47.970956][ T7276] __ip_queue_xmit+0x3a8/0xa40 [ 47.975714][ T7276] ip_queue_xmit+0x45/0x60 [ 47.980107][ T7276] __tcp_transmit_skb+0xe81/0x1d60 [ 47.985472][ T7276] __tcp_send_ack+0x246/0x300 [ 47.990126][ T7276] tcp_send_ack+0x34/0x40 [ 47.994434][ T7276] tcp_cleanup_rbuf+0x130/0x360 [ 47.999436][ T7276] tcp_recvmsg+0x633/0x1a30 [ 48.003920][ T7276] ? __kcsan_setup_watchpoint+0x6b/0x4a0 [ 48.009534][ T7276] inet_recvmsg+0xbb/0x250 [ 48.013958][ T7276] ? __tsan_read8+0x2c/0x30 [ 48.018527][ T7276] ? inet_sendpage+0x100/0x100 [ 48.023269][ T7276] sock_recvmsg+0x92/0xb0 [ 48.027578][ T7276] sock_read_iter+0x15f/0x1e0 [ 48.032859][ T7276] new_sync_read+0x389/0x4f0 [ 48.037439][ T7276] __vfs_read+0xb1/0xc0 [ 48.041938][ T7276] vfs_read+0x143/0x2c0 [ 48.046070][ T7276] ksys_read+0xd5/0x1b0 [ 48.050202][ T7276] __x64_sys_read+0x4c/0x60 [ 48.055021][ T7276] do_syscall_64+0xcc/0x370 [ 48.059610][ T7276] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 48.066015][ T7276] RIP: 0033:0x47c530 [ 48.069893][ T7276] 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 [ 48.089476][ T7276] RSP: 002b:000000c4204d97d8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 48.097867][ T7276] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530 [ 48.105847][ T7276] RDX: 0000000000001000 RSI: 000000c42039a000 RDI: 0000000000000003 [ 48.113976][ T7276] RBP: 000000c4204d9830 R08: 0000000000000000 R09: 0000000000000000 [ 48.121936][ T7276] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000008 [ 48.129974][ T7276] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff [ 48.139563][ T7276] Kernel Offset: disabled [ 48.144070][ T7276] Rebooting in 86400 seconds..