Warning: Permanently added '10.128.0.80' (ECDSA) to the list of known hosts. 2019/10/22 16:55:55 fuzzer started 2019/10/22 16:55:57 dialing manager at 10.128.0.105:33369 2019/10/22 16:55:57 syscalls: 2524 2019/10/22 16:55:57 code coverage: enabled 2019/10/22 16:55:57 comparison tracing: enabled 2019/10/22 16:55:57 extra coverage: extra coverage is not supported by the kernel 2019/10/22 16:55:57 setuid sandbox: enabled 2019/10/22 16:55:57 namespace sandbox: enabled 2019/10/22 16:55:57 Android sandbox: /sys/fs/selinux/policy does not exist 2019/10/22 16:55:57 fault injection: enabled 2019/10/22 16:55:57 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/10/22 16:55:57 net packet injection: enabled 2019/10/22 16:55:57 net device setup: enabled 2019/10/22 16:55:57 concurrency sanitizer: enabled syzkaller login: [ 49.151429][ T7242] ================================================================== [ 49.159997][ T7242] BUG: KCSAN: data-race in __nf_ct_refresh_acct / __nf_ct_refresh_acct [ 49.168215][ T7242] [ 49.170545][ T7242] read to 0xffff88812320ff08 of 4 bytes by interrupt on cpu 0: [ 49.178078][ T7242] __nf_ct_refresh_acct+0xd4/0x1b0 [ 49.183206][ T7242] nf_conntrack_tcp_packet+0xd40/0x3390 [ 49.188727][ T7242] nf_conntrack_in+0x410/0xa80 [ 49.193470][ T7242] ipv4_conntrack_in+0x27/0x40 [ 49.198211][ T7242] nf_hook_slow+0x83/0x160 [ 49.202610][ T7242] ip_rcv+0x12f/0x1a0 [ 49.206570][ T7242] __netif_receive_skb_one_core+0xa7/0xe0 [ 49.212266][ T7242] __netif_receive_skb+0x37/0xf0 [ 49.217206][ T7242] netif_receive_skb_internal+0x59/0x190 [ 49.222833][ T7242] napi_gro_receive+0x28f/0x330 [ 49.227664][ T7242] receive_buf+0x284/0x30b0 [ 49.232156][ T7242] virtnet_poll+0x436/0x7d0 [ 49.236634][ T7242] net_rx_action+0x3ae/0xa90 [ 49.241203][ T7242] __do_softirq+0x115/0x33f [ 49.245688][ T7242] [ 49.247996][ T7242] write to 0xffff88812320ff08 of 4 bytes by task 7242 on cpu 1: [ 49.255601][ T7242] __nf_ct_refresh_acct+0xfb/0x1b0 [ 49.260699][ T7242] nf_conntrack_tcp_packet+0xd40/0x3390 [ 49.266221][ T7242] nf_conntrack_in+0x410/0xa80 [ 49.270958][ T7242] ipv4_conntrack_local+0xbe/0x130 [ 49.276046][ T7242] nf_hook_slow+0x83/0x160 [ 49.280438][ T7242] __ip_local_out+0x1f7/0x2b0 [ 49.285090][ T7242] ip_local_out+0x31/0x90 [ 49.289395][ T7242] __ip_queue_xmit+0x3a8/0xa40 [ 49.294150][ T7242] ip_queue_xmit+0x45/0x60 [ 49.298540][ T7242] __tcp_transmit_skb+0xe81/0x1d60 [ 49.303649][ T7242] __tcp_send_ack+0x246/0x300 [ 49.308318][ T7242] tcp_send_ack+0x34/0x40 [ 49.312637][ T7242] tcp_cleanup_rbuf+0x130/0x360 [ 49.317470][ T7242] [ 49.319771][ T7242] Reported by Kernel Concurrency Sanitizer on: [ 49.325907][ T7242] CPU: 1 PID: 7242 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0 [ 49.333332][ T7242] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.343361][ T7242] ================================================================== [ 49.351397][ T7242] Kernel panic - not syncing: panic_on_warn set ... [ 49.357958][ T7242] CPU: 1 PID: 7242 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0 [ 49.365386][ T7242] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.375412][ T7242] Call Trace: [ 49.378698][ T7242] dump_stack+0xf5/0x159 [ 49.382933][ T7242] panic+0x210/0x640 [ 49.386808][ T7242] ? ip_queue_xmit+0x45/0x60 [ 49.391376][ T7242] ? vprintk_func+0x8d/0x140 [ 49.395945][ T7242] kcsan_report.cold+0xc/0x10 [ 49.400615][ T7242] __kcsan_setup_watchpoint+0x32e/0x4a0 [ 49.406145][ T7242] __tsan_write4+0x32/0x40 [ 49.410541][ T7242] __nf_ct_refresh_acct+0xfb/0x1b0 [ 49.415658][ T7242] nf_conntrack_tcp_packet+0xd40/0x3390 [ 49.421209][ T7242] ? __kcsan_setup_watchpoint+0x6b/0x4a0 [ 49.426820][ T7242] nf_conntrack_in+0x410/0xa80 [ 49.431566][ T7242] ipv4_conntrack_local+0xbe/0x130 [ 49.436663][ T7242] nf_hook_slow+0x83/0x160 [ 49.441057][ T7242] ? nf_ct_tcp_fixup+0xe0/0xe0 [ 49.445800][ T7242] __ip_local_out+0x1f7/0x2b0 [ 49.450480][ T7242] ? constant_test_bit+0x30/0x30 [ 49.455408][ T7242] ip_local_out+0x31/0x90 [ 49.459729][ T7242] __ip_queue_xmit+0x3a8/0xa40 [ 49.464479][ T7242] ip_queue_xmit+0x45/0x60 [ 49.468874][ T7242] __tcp_transmit_skb+0xe81/0x1d60 [ 49.473969][ T7242] __tcp_send_ack+0x246/0x300 [ 49.478623][ T7242] tcp_send_ack+0x34/0x40 [ 49.482937][ T7242] tcp_cleanup_rbuf+0x130/0x360 [ 49.487771][ T7242] tcp_recvmsg+0x633/0x1a30 [ 49.492259][ T7242] inet_recvmsg+0xbb/0x250 [ 49.496655][ T7242] ? __tsan_read8+0x2c/0x30 [ 49.501137][ T7242] ? inet_sendpage+0x100/0x100 [ 49.505896][ T7242] sock_recvmsg+0x92/0xb0 [ 49.510204][ T7242] sock_read_iter+0x15f/0x1e0 [ 49.514860][ T7242] new_sync_read+0x389/0x4f0 [ 49.519444][ T7242] __vfs_read+0xb1/0xc0 [ 49.523597][ T7242] vfs_read+0x143/0x2c0 [ 49.527733][ T7242] ksys_read+0xd5/0x1b0 [ 49.531868][ T7242] __x64_sys_read+0x4c/0x60 [ 49.536366][ T7242] do_syscall_64+0xcc/0x370 [ 49.540935][ T7242] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 49.546802][ T7242] RIP: 0033:0x47c530 [ 49.550677][ T7242] 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 [ 49.570271][ T7242] RSP: 002b:000000c4203217d8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 49.578675][ T7242] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530 [ 49.586628][ T7242] RDX: 0000000000001000 RSI: 000000c4202a6000 RDI: 0000000000000003 [ 49.594576][ T7242] RBP: 000000c420321830 R08: 0000000000000000 R09: 0000000000000000 [ 49.602789][ T7242] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000020 [ 49.610748][ T7242] R13: ffffffffffffffff R14: 0000000000000008 R15: ffffffffffffffff [ 49.620000][ T7242] Kernel Offset: disabled [ 49.624338][ T7242] Rebooting in 86400 seconds..