Warning: Permanently added '10.128.0.101' (ECDSA) to the list of known hosts. 2019/10/22 08:39:16 fuzzer started 2019/10/22 08:39:18 dialing manager at 10.128.0.105:37053 2019/10/22 08:39:18 syscalls: 2524 2019/10/22 08:39:18 code coverage: enabled 2019/10/22 08:39:18 comparison tracing: enabled 2019/10/22 08:39:18 extra coverage: extra coverage is not supported by the kernel 2019/10/22 08:39:18 setuid sandbox: enabled 2019/10/22 08:39:18 namespace sandbox: enabled 2019/10/22 08:39:18 Android sandbox: /sys/fs/selinux/policy does not exist 2019/10/22 08:39:18 fault injection: enabled 2019/10/22 08:39:18 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/10/22 08:39:18 net packet injection: enabled 2019/10/22 08:39:18 net device setup: enabled 2019/10/22 08:39:18 concurrency sanitizer: enabled syzkaller login: [ 50.543261][ T7278] ================================================================== [ 50.551422][ T7278] BUG: KCSAN: data-race in __nf_ct_refresh_acct / __nf_ct_refresh_acct [ 50.559665][ T7278] [ 50.561998][ T7278] write to 0xffff8881245aad08 of 4 bytes by interrupt on cpu 1: [ 50.570118][ T7278] __nf_ct_refresh_acct+0xfb/0x1b0 [ 50.575395][ T7278] nf_conntrack_tcp_packet+0xd40/0x3390 [ 50.580948][ T7278] nf_conntrack_in+0x410/0xa80 [ 50.585707][ T7278] ipv4_conntrack_in+0x27/0x40 [ 50.590452][ T7278] nf_hook_slow+0x83/0x160 [ 50.594843][ T7278] ip_rcv+0x12f/0x1a0 [ 50.598821][ T7278] __netif_receive_skb_one_core+0xa7/0xe0 [ 50.604517][ T7278] __netif_receive_skb+0x37/0xf0 [ 50.609451][ T7278] netif_receive_skb_internal+0x59/0x190 [ 50.615150][ T7278] napi_gro_receive+0x28f/0x330 [ 50.619996][ T7278] receive_buf+0x284/0x30b0 [ 50.624477][ T7278] virtnet_poll+0x436/0x7d0 [ 50.628979][ T7278] net_rx_action+0x3ae/0xa90 [ 50.633545][ T7278] __do_softirq+0x115/0x33f [ 50.638019][ T7278] [ 50.640327][ T7278] read to 0xffff8881245aad08 of 4 bytes by task 7278 on cpu 0: [ 50.647852][ T7278] __nf_ct_refresh_acct+0xd4/0x1b0 [ 50.653038][ T7278] nf_conntrack_tcp_packet+0xd40/0x3390 [ 50.658572][ T7278] nf_conntrack_in+0x410/0xa80 [ 50.663311][ T7278] ipv4_conntrack_local+0xbe/0x130 [ 50.668408][ T7278] nf_hook_slow+0x83/0x160 [ 50.672801][ T7278] __ip_local_out+0x1f7/0x2b0 [ 50.677466][ T7278] ip_local_out+0x31/0x90 [ 50.681797][ T7278] __ip_queue_xmit+0x3a8/0xa40 [ 50.686539][ T7278] ip_queue_xmit+0x45/0x60 [ 50.691031][ T7278] __tcp_transmit_skb+0xe81/0x1d60 [ 50.696133][ T7278] __tcp_send_ack+0x246/0x300 [ 50.700821][ T7278] tcp_send_ack+0x34/0x40 [ 50.705136][ T7278] tcp_cleanup_rbuf+0x130/0x360 [ 50.709964][ T7278] [ 50.712275][ T7278] Reported by Kernel Concurrency Sanitizer on: [ 50.718407][ T7278] CPU: 0 PID: 7278 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0 [ 50.725933][ T7278] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.735966][ T7278] ================================================================== [ 50.746442][ T7278] Kernel panic - not syncing: panic_on_warn set ... [ 50.753103][ T7278] CPU: 0 PID: 7278 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0 [ 50.760538][ T7278] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.770574][ T7278] Call Trace: [ 50.773930][ T7278] dump_stack+0xf5/0x159 [ 50.778157][ T7278] panic+0x210/0x640 [ 50.782048][ T7278] ? ip_queue_xmit+0x45/0x60 [ 50.786624][ T7278] ? vprintk_func+0x8d/0x140 [ 50.791204][ T7278] kcsan_report.cold+0xc/0x10 [ 50.795886][ T7278] __kcsan_setup_watchpoint+0x32e/0x4a0 [ 50.801417][ T7278] __tsan_read4+0x2c/0x30 [ 50.805730][ T7278] __nf_ct_refresh_acct+0xd4/0x1b0 [ 50.810826][ T7278] nf_conntrack_tcp_packet+0xd40/0x3390 [ 50.816389][ T7278] ? __kcsan_setup_watchpoint+0x6b/0x4a0 [ 50.822012][ T7278] nf_conntrack_in+0x410/0xa80 [ 50.826768][ T7278] ipv4_conntrack_local+0xbe/0x130 [ 50.831859][ T7278] nf_hook_slow+0x83/0x160 [ 50.836254][ T7278] ? nf_ct_tcp_fixup+0xe0/0xe0 [ 50.841013][ T7278] __ip_local_out+0x1f7/0x2b0 [ 50.845669][ T7278] ? constant_test_bit+0x30/0x30 [ 50.850583][ T7278] ip_local_out+0x31/0x90 [ 50.854890][ T7278] __ip_queue_xmit+0x3a8/0xa40 [ 50.859810][ T7278] ip_queue_xmit+0x45/0x60 [ 50.864208][ T7278] __tcp_transmit_skb+0xe81/0x1d60 [ 50.869304][ T7278] __tcp_send_ack+0x246/0x300 [ 50.874933][ T7278] tcp_send_ack+0x34/0x40 [ 50.879247][ T7278] tcp_cleanup_rbuf+0x130/0x360 [ 50.884178][ T7278] tcp_recvmsg+0x633/0x1a30 [ 50.888685][ T7278] inet_recvmsg+0xbb/0x250 [ 50.893146][ T7278] ? __tsan_read8+0x2c/0x30 [ 50.897632][ T7278] ? inet_sendpage+0x100/0x100 [ 50.902379][ T7278] sock_recvmsg+0x92/0xb0 [ 50.906705][ T7278] sock_read_iter+0x15f/0x1e0 [ 50.911371][ T7278] new_sync_read+0x389/0x4f0 [ 50.915948][ T7278] __vfs_read+0xb1/0xc0 [ 50.920082][ T7278] vfs_read+0x143/0x2c0 [ 50.924223][ T7278] ksys_read+0xd5/0x1b0 [ 50.928367][ T7278] __x64_sys_read+0x4c/0x60 [ 50.932851][ T7278] do_syscall_64+0xcc/0x370 [ 50.937336][ T7278] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 50.943817][ T7278] RIP: 0033:0x47c530 [ 50.947691][ T7278] 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 [ 50.967269][ T7278] RSP: 002b:000000c420391810 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 [ 50.975656][ T7278] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530 [ 50.983798][ T7278] RDX: 0000000000001000 RSI: 000000c42009a000 RDI: 0000000000000003 [ 50.991911][ T7278] RBP: 000000c420391868 R08: 0000000000000000 R09: 0000000000000000 [ 51.000149][ T7278] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000002 [ 51.008119][ T7278] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff [ 51.017587][ T7278] Kernel Offset: disabled [ 51.021927][ T7278] Rebooting in 86400 seconds..