Warning: Permanently added '10.128.15.203' (ECDSA) to the list of known hosts.
2019/10/22 19:47:45 fuzzer started
2019/10/22 19:47:47 dialing manager at 10.128.0.105:33369
2019/10/22 19:47:47 syscalls: 2524
2019/10/22 19:47:47 code coverage: enabled
2019/10/22 19:47:47 comparison tracing: enabled
2019/10/22 19:47:47 extra coverage: extra coverage is not supported by the kernel
2019/10/22 19:47:47 setuid sandbox: enabled
2019/10/22 19:47:47 namespace sandbox: enabled
2019/10/22 19:47:47 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/22 19:47:47 fault injection: enabled
2019/10/22 19:47:47 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/22 19:47:47 net packet injection: enabled
2019/10/22 19:47:47 net device setup: enabled
2019/10/22 19:47:47 concurrency sanitizer: enabled
syzkaller login: [   50.210681][ T7221] ==================================================================
[   50.218927][ T7221] BUG: KCSAN: data-race in tcp_add_backlog / tcp_recvmsg
[   50.225925][ T7221] 
[   50.228239][ T7221] write to 0xffff88811fd409f8 of 8 bytes by interrupt on cpu 1:
[   50.235856][ T7221]  tcp_add_backlog+0x45a/0xcc0
[   50.240602][ T7221]  tcp_v4_rcv+0x1a60/0x1bb0
[   50.245094][ T7221]  ip_protocol_deliver_rcu+0x4d/0x420
[   50.250442][ T7221]  ip_local_deliver_finish+0x110/0x140
[   50.256569][ T7221]  ip_local_deliver+0x133/0x210
[   50.261408][ T7221]  ip_rcv_finish+0x121/0x160
[   50.266073][ T7221]  ip_rcv+0x18f/0x1a0
[   50.270031][ T7221]  __netif_receive_skb_one_core+0xa7/0xe0
[   50.275727][ T7221]  __netif_receive_skb+0x37/0xf0
[   50.280644][ T7221]  netif_receive_skb_internal+0x59/0x190
[   50.286268][ T7221]  napi_gro_receive+0x28f/0x330
[   50.291114][ T7221]  receive_buf+0x284/0x30b0
[   50.295594][ T7221]  virtnet_poll+0x436/0x7d0
[   50.300075][ T7221]  net_rx_action+0x3ae/0xa90
[   50.304635][ T7221] 
[   50.306943][ T7221] read to 0xffff88811fd409f8 of 8 bytes by task 7221 on cpu 0:
[   50.314466][ T7221]  tcp_recvmsg+0x470/0x1a30
[   50.318944][ T7221]  inet_recvmsg+0xbb/0x250
[   50.323339][ T7221]  sock_recvmsg+0x92/0xb0
[   50.327657][ T7221]  sock_read_iter+0x15f/0x1e0
[   50.332326][ T7221]  new_sync_read+0x389/0x4f0
[   50.336905][ T7221]  __vfs_read+0xb1/0xc0
[   50.341102][ T7221]  vfs_read+0x143/0x2c0
[   50.345239][ T7221]  ksys_read+0xd5/0x1b0
[   50.349422][ T7221]  __x64_sys_read+0x4c/0x60
[   50.353907][ T7221]  do_syscall_64+0xcc/0x370
[   50.358390][ T7221]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   50.364263][ T7221] 
[   50.366580][ T7221] Reported by Kernel Concurrency Sanitizer on:
[   50.372708][ T7221] CPU: 0 PID: 7221 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   50.380132][ T7221] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   50.390162][ T7221] ==================================================================
[   50.398198][ T7221] Kernel panic - not syncing: panic_on_warn set ...
[   50.404762][ T7221] CPU: 0 PID: 7221 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   50.412188][ T7221] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   50.422218][ T7221] Call Trace:
[   50.425501][ T7221]  dump_stack+0xf5/0x159
[   50.429721][ T7221]  panic+0x210/0x640
[   50.433683][ T7221]  ? __x64_sys_read+0x4c/0x60
[   50.438341][ T7221]  ? vprintk_func+0x8d/0x140
[   50.442912][ T7221]  kcsan_report.cold+0xc/0x10
[   50.447570][ T7221]  __kcsan_setup_watchpoint+0x32e/0x4a0
[   50.453095][ T7221]  __tsan_read8+0x2c/0x30
[   50.457405][ T7221]  tcp_recvmsg+0x470/0x1a30
[   50.461894][ T7221]  inet_recvmsg+0xbb/0x250
[   50.466299][ T7221]  ? __tsan_read8+0x2c/0x30
[   50.470779][ T7221]  ? inet_sendpage+0x100/0x100
[   50.475526][ T7221]  sock_recvmsg+0x92/0xb0
[   50.479837][ T7221]  sock_read_iter+0x15f/0x1e0
[   50.484520][ T7221]  new_sync_read+0x389/0x4f0
[   50.489098][ T7221]  __vfs_read+0xb1/0xc0
[   50.493233][ T7221]  vfs_read+0x143/0x2c0
[   50.497368][ T7221]  ksys_read+0xd5/0x1b0
[   50.501506][ T7221]  __x64_sys_read+0x4c/0x60
[   50.506002][ T7221]  do_syscall_64+0xcc/0x370
[   50.510584][ T7221]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   50.516450][ T7221] RIP: 0033:0x47c530
[   50.520326][ T7221] 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
[   50.539910][ T7221] RSP: 002b:000000c4203477d8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000
[   50.548314][ T7221] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   50.556279][ T7221] RDX: 0000000000001000 RSI: 000000c420094000 RDI: 0000000000000003
[   50.564400][ T7221] RBP: 000000c420347830 R08: 0000000000000000 R09: 0000000000000000
[   50.572364][ T7221] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000040
[   50.580313][ T7221] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff
[   50.589667][ T7221] Kernel Offset: disabled
[   50.593987][ T7221] Rebooting in 86400 seconds..