Warning: Permanently added '10.128.1.1' (ECDSA) to the list of known hosts. 2019/10/21 17:27:40 fuzzer started 2019/10/21 17:27:42 dialing manager at 10.128.0.105:39747 2019/10/21 17:27:42 syscalls: 2524 2019/10/21 17:27:42 code coverage: enabled 2019/10/21 17:27:42 comparison tracing: enabled 2019/10/21 17:27:42 extra coverage: extra coverage is not supported by the kernel 2019/10/21 17:27:42 setuid sandbox: enabled 2019/10/21 17:27:42 namespace sandbox: enabled 2019/10/21 17:27:42 Android sandbox: /sys/fs/selinux/policy does not exist 2019/10/21 17:27:42 fault injection: enabled 2019/10/21 17:27:42 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/10/21 17:27:42 net packet injection: enabled 2019/10/21 17:27:42 net device setup: enabled 2019/10/21 17:27:42 concurrency sanitizer: enabled syzkaller login: [ 52.126735][ T7238] ================================================================== [ 52.134881][ T7238] BUG: KCSAN: data-race in __nf_ct_refresh_acct / __nf_ct_refresh_acct [ 52.143102][ T7238] [ 52.145433][ T7238] read to 0xffff888124990508 of 4 bytes by interrupt on cpu 1: [ 52.152967][ T7238] __nf_ct_refresh_acct+0xd4/0x1b0 [ 52.158052][ T7238] nf_conntrack_tcp_packet+0xd40/0x3390 [ 52.163573][ T7238] nf_conntrack_in+0x410/0xa80 [ 52.168309][ T7238] ipv4_conntrack_in+0x27/0x40 [ 52.173047][ T7238] nf_hook_slow+0x83/0x160 [ 52.177438][ T7238] ip_rcv+0x12f/0x1a0 [ 52.181407][ T7238] __netif_receive_skb_one_core+0xa7/0xe0 [ 52.187108][ T7238] __netif_receive_skb+0x37/0xf0 [ 52.192019][ T7238] netif_receive_skb_internal+0x59/0x190 [ 52.197625][ T7238] napi_gro_receive+0x28f/0x330 [ 52.202458][ T7238] receive_buf+0x284/0x30b0 [ 52.206943][ T7238] virtnet_poll+0x436/0x7d0 [ 52.211420][ T7238] net_rx_action+0x3ae/0xa90 [ 52.215983][ T7238] __do_softirq+0x115/0x33f [ 52.220454][ T7238] [ 52.222760][ T7238] write to 0xffff888124990508 of 4 bytes by task 7238 on cpu 0: [ 52.230799][ T7238] __nf_ct_refresh_acct+0xfb/0x1b0 [ 52.235882][ T7238] nf_conntrack_tcp_packet+0xd40/0x3390 [ 52.241490][ T7238] nf_conntrack_in+0x410/0xa80 [ 52.246237][ T7238] ipv4_conntrack_local+0xbe/0x130 [ 52.251326][ T7238] nf_hook_slow+0x83/0x160 [ 52.255717][ T7238] __ip_local_out+0x1f7/0x2b0 [ 52.260366][ T7238] ip_local_out+0x31/0x90 [ 52.264677][ T7238] __ip_queue_xmit+0x3a8/0xa40 [ 52.269416][ T7238] ip_queue_xmit+0x45/0x60 [ 52.273806][ T7238] __tcp_transmit_skb+0xe81/0x1d60 [ 52.278888][ T7238] __tcp_send_ack+0x246/0x300 [ 52.283535][ T7238] tcp_send_ack+0x34/0x40 [ 52.287837][ T7238] tcp_cleanup_rbuf+0x130/0x360 [ 52.292654][ T7238] [ 52.294953][ T7238] Reported by Kernel Concurrency Sanitizer on: [ 52.301081][ T7238] CPU: 0 PID: 7238 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0 [ 52.308513][ T7238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.318547][ T7238] ================================================================== [ 52.326587][ T7238] Kernel panic - not syncing: panic_on_warn set ... [ 52.333289][ T7238] CPU: 0 PID: 7238 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0 [ 52.340721][ T7238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.350756][ T7238] Call Trace: [ 52.354033][ T7238] dump_stack+0xf5/0x159 [ 52.358254][ T7238] panic+0x210/0x640 [ 52.362129][ T7238] ? ip_queue_xmit+0x45/0x60 [ 52.366698][ T7238] ? vprintk_func+0x8d/0x140 [ 52.371267][ T7238] kcsan_report.cold+0xc/0x10 [ 52.375925][ T7238] __kcsan_setup_watchpoint+0x32e/0x4a0 [ 52.381448][ T7238] __tsan_write4+0x32/0x40 [ 52.385860][ T7238] __nf_ct_refresh_acct+0xfb/0x1b0 [ 52.390949][ T7238] nf_conntrack_tcp_packet+0xd40/0x3390 [ 52.396490][ T7238] ? __kcsan_setup_watchpoint+0x6b/0x4a0 [ 52.402102][ T7238] nf_conntrack_in+0x410/0xa80 [ 52.406843][ T7238] ipv4_conntrack_local+0xbe/0x130 [ 52.411939][ T7238] nf_hook_slow+0x83/0x160 [ 52.416329][ T7238] ? nf_ct_tcp_fixup+0xe0/0xe0 [ 52.421086][ T7238] __ip_local_out+0x1f7/0x2b0 [ 52.425746][ T7238] ? constant_test_bit+0x30/0x30 [ 52.430662][ T7238] ip_local_out+0x31/0x90 [ 52.435022][ T7238] __ip_queue_xmit+0x3a8/0xa40 [ 52.439808][ T7238] ip_queue_xmit+0x45/0x60 [ 52.444267][ T7238] __tcp_transmit_skb+0xe81/0x1d60 [ 52.449368][ T7238] __tcp_send_ack+0x246/0x300 [ 52.454035][ T7238] tcp_send_ack+0x34/0x40 [ 52.458347][ T7238] tcp_cleanup_rbuf+0x130/0x360 [ 52.463182][ T7238] tcp_recvmsg+0x633/0x1a30 [ 52.467682][ T7238] inet_recvmsg+0xbb/0x250 [ 52.472078][ T7238] ? __tsan_read8+0x2c/0x30 [ 52.476556][ T7238] ? inet_sendpage+0x100/0x100 [ 52.481296][ T7238] sock_recvmsg+0x92/0xb0 [ 52.485607][ T7238] sock_read_iter+0x15f/0x1e0 [ 52.490265][ T7238] new_sync_read+0x389/0x4f0 [ 52.494835][ T7238] __vfs_read+0xb1/0xc0 [ 52.498964][ T7238] vfs_read+0x143/0x2c0 [ 52.503098][ T7238] ksys_read+0xd5/0x1b0 [ 52.507256][ T7238] __x64_sys_read+0x4c/0x60 [ 52.511736][ T7238] do_syscall_64+0xcc/0x370 [ 52.516218][ T7238] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 52.522082][ T7238] RIP: 0033:0x47c530 [ 52.526042][ T7238] 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 [ 52.545796][ T7238] RSP: 002b:000000c420339810 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 [ 52.554181][ T7238] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530 [ 52.562126][ T7238] RDX: 0000000000001000 RSI: 000000c42030a000 RDI: 0000000000000003 [ 52.570070][ T7238] RBP: 000000c420339868 R08: 0000000000000000 R09: 0000000000000000 [ 52.578026][ T7238] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000009 [ 52.585986][ T7238] R13: 000000c4200230c0 R14: 0000000000000004 R15: ffffffffffffffff [ 52.595527][ T7238] Kernel Offset: disabled [ 52.599847][ T7238] Rebooting in 86400 seconds..