Warning: Permanently added '10.128.1.59' (ECDSA) to the list of known hosts.
2019/10/22 21:55:49 fuzzer started
2019/10/22 21:55:51 dialing manager at 10.128.0.105:33369
2019/10/22 21:55:51 syscalls: 2524
2019/10/22 21:55:51 code coverage: enabled
2019/10/22 21:55:51 comparison tracing: enabled
2019/10/22 21:55:51 extra coverage: extra coverage is not supported by the kernel
2019/10/22 21:55:51 setuid sandbox: enabled
2019/10/22 21:55:51 namespace sandbox: enabled
2019/10/22 21:55:51 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/22 21:55:51 fault injection: enabled
2019/10/22 21:55:51 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/22 21:55:51 net packet injection: enabled
2019/10/22 21:55:51 net device setup: enabled
2019/10/22 21:55:51 concurrency sanitizer: enabled
syzkaller login: [   46.558127][ T7198] ==================================================================
[   46.566255][ T7198] BUG: KCSAN: data-race in tcp_add_backlog / tcp_grow_window.isra.0
[   46.574463][ T7198] 
[   46.576779][ T7198] write to 0xffff8881293cc9ec of 4 bytes by interrupt on cpu 0:
[   46.584479][ T7198]  tcp_add_backlog+0x4a0/0xcc0
[   46.589233][ T7198]  tcp_v4_rcv+0x1a60/0x1bb0
[   46.593722][ T7198]  ip_protocol_deliver_rcu+0x4d/0x420
[   46.599074][ T7198]  ip_local_deliver_finish+0x110/0x140
[   46.604509][ T7198]  ip_local_deliver+0x133/0x210
[   46.609348][ T7198]  ip_rcv_finish+0x121/0x160
[   46.613911][ T7198]  ip_rcv+0x18f/0x1a0
[   46.618408][ T7198]  __netif_receive_skb_one_core+0xa7/0xe0
[   46.624104][ T7198]  __netif_receive_skb+0x37/0xf0
[   46.632091][ T7198]  netif_receive_skb_internal+0x59/0x190
[   46.637703][ T7198]  napi_gro_receive+0x28f/0x330
[   46.642545][ T7198]  receive_buf+0x284/0x30b0
[   46.647022][ T7198]  virtnet_poll+0x436/0x7d0
[   46.651689][ T7198]  net_rx_action+0x3ae/0xa90
[   46.656336][ T7198] 
[   46.658661][ T7198] read to 0xffff8881293cc9ec of 4 bytes by task 7198 on cpu 1:
[   46.666179][ T7198]  tcp_grow_window.isra.0+0x6b/0x480
[   46.671438][ T7198]  tcp_event_data_recv+0x68f/0x990
[   46.676536][ T7198]  tcp_rcv_established+0xbfe/0xf50
[   46.681739][ T7198]  tcp_v4_do_rcv+0x381/0x4e0
[   46.686342][ T7198]  __release_sock+0x135/0x1e0
[   46.691372][ T7198]  release_sock+0x61/0x160
[   46.695783][ T7198]  tcp_recvmsg+0x63b/0x1a30
[   46.700269][ T7198]  inet_recvmsg+0xbb/0x250
[   46.704668][ T7198]  sock_recvmsg+0x92/0xb0
[   46.708997][ T7198]  sock_read_iter+0x15f/0x1e0
[   46.713665][ T7198]  new_sync_read+0x389/0x4f0
[   46.718249][ T7198]  __vfs_read+0xb1/0xc0
[   46.722388][ T7198]  vfs_read+0x143/0x2c0
[   46.726524][ T7198] 
[   46.728840][ T7198] Reported by Kernel Concurrency Sanitizer on:
[   46.734987][ T7198] CPU: 1 PID: 7198 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   46.742423][ T7198] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   46.752459][ T7198] ==================================================================
[   46.760500][ T7198] Kernel panic - not syncing: panic_on_warn set ...
[   46.767079][ T7198] CPU: 1 PID: 7198 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   46.774508][ T7198] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   46.784634][ T7198] Call Trace:
[   46.787911][ T7198]  dump_stack+0xf5/0x159
[   46.792134][ T7198]  panic+0x210/0x640
[   46.796013][ T7198]  ? sock_recvmsg+0x92/0xb0
[   46.800493][ T7198]  ? vprintk_func+0x8d/0x140
[   46.805063][ T7198]  kcsan_report.cold+0xc/0x10
[   46.809724][ T7198]  __kcsan_setup_watchpoint+0x32e/0x4a0
[   46.815261][ T7198]  __tsan_read4+0x2c/0x30
[   46.819656][ T7198]  tcp_grow_window.isra.0+0x6b/0x480
[   46.825353][ T7198]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   46.831139][ T7198]  tcp_event_data_recv+0x68f/0x990
[   46.836233][ T7198]  tcp_rcv_established+0xbfe/0xf50
[   46.841499][ T7198]  ? ipv4_dst_check+0xc6/0xf0
[   46.846254][ T7198]  tcp_v4_do_rcv+0x381/0x4e0
[   46.851083][ T7198]  __release_sock+0x135/0x1e0
[   46.855742][ T7198]  release_sock+0x61/0x160
[   46.860141][ T7198]  tcp_recvmsg+0x63b/0x1a30
[   46.864992][ T7198]  inet_recvmsg+0xbb/0x250
[   46.869399][ T7198]  ? __tsan_read8+0x2c/0x30
[   46.873880][ T7198]  ? inet_sendpage+0x100/0x100
[   46.878637][ T7198]  sock_recvmsg+0x92/0xb0
[   46.882970][ T7198]  sock_read_iter+0x15f/0x1e0
[   46.887638][ T7198]  new_sync_read+0x389/0x4f0
[   46.892211][ T7198]  __vfs_read+0xb1/0xc0
[   46.896350][ T7198]  vfs_read+0x143/0x2c0
[   46.900483][ T7198]  ksys_read+0xd5/0x1b0
[   46.904640][ T7198]  __x64_sys_read+0x4c/0x60
[   46.909169][ T7198]  do_syscall_64+0xcc/0x370
[   46.913654][ T7198]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   46.919532][ T7198] RIP: 0033:0x47c530
[   46.923416][ T7198] 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
[   46.943008][ T7198] RSP: 002b:000000c42014f810 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
[   46.951396][ T7198] RAX: ffffffffffffffda RBX: 000000c4202c2c00 RCX: 000000000047c530
[   46.959350][ T7198] RDX: 0000000000001000 RSI: 000000c420318000 RDI: 0000000000000003
[   46.967299][ T7198] RBP: 000000c42014f868 R08: 0000000000000000 R09: 0000000000000000
[   46.975524][ T7198] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000020
[   46.990006][ T7198] R13: ffffffffffffffff R14: 0000000000000004 R15: ffffffffffffffff
[   46.999332][ T7198] Kernel Offset: disabled
[   47.003666][ T7198] Rebooting in 86400 seconds..