Warning: Permanently added '10.128.10.25' (ECDSA) to the list of known hosts.
2019/10/22 18:15:51 fuzzer started
2019/10/22 18:15:53 dialing manager at 10.128.0.105:33369
2019/10/22 18:15:53 syscalls: 2524
2019/10/22 18:15:53 code coverage: enabled
2019/10/22 18:15:53 comparison tracing: enabled
2019/10/22 18:15:53 extra coverage: extra coverage is not supported by the kernel
2019/10/22 18:15:53 setuid sandbox: enabled
2019/10/22 18:15:53 namespace sandbox: enabled
2019/10/22 18:15:53 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/22 18:15:53 fault injection: enabled
2019/10/22 18:15:53 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/22 18:15:53 net packet injection: enabled
2019/10/22 18:15:53 net device setup: enabled
2019/10/22 18:15:53 concurrency sanitizer: enabled
syzkaller login: [   53.310892][ T7229] ==================================================================
[   53.319043][ T7229] BUG: KCSAN: data-race in tcp_add_backlog / tcp_recvmsg
[   53.326048][ T7229] 
[   53.328377][ T7229] write to 0xffff8881264f09f8 of 8 bytes by interrupt on cpu 1:
[   53.336008][ T7229]  tcp_add_backlog+0x45a/0xcc0
[   53.340774][ T7229]  tcp_v4_rcv+0x1a60/0x1bb0
[   53.345297][ T7229]  ip_protocol_deliver_rcu+0x4d/0x420
[   53.350665][ T7229]  ip_local_deliver_finish+0x110/0x140
[   53.356115][ T7229]  ip_local_deliver+0x133/0x210
[   53.360973][ T7229]  ip_rcv_finish+0x121/0x160
[   53.365554][ T7229]  ip_rcv+0x18f/0x1a0
[   53.369533][ T7229]  __netif_receive_skb_one_core+0xa7/0xe0
[   53.375236][ T7229]  __netif_receive_skb+0x37/0xf0
[   53.380290][ T7229]  netif_receive_skb_internal+0x59/0x190
[   53.385926][ T7229]  napi_gro_receive+0x28f/0x330
[   53.390886][ T7229]  receive_buf+0x284/0x30b0
[   53.395377][ T7229]  virtnet_poll+0x436/0x7d0
[   53.399859][ T7229]  net_rx_action+0x3ae/0xa90
[   53.404435][ T7229] 
[   53.406749][ T7229] read to 0xffff8881264f09f8 of 8 bytes by task 7229 on cpu 0:
[   53.414374][ T7229]  tcp_recvmsg+0x470/0x1a30
[   53.418892][ T7229]  inet_recvmsg+0xbb/0x250
[   53.423306][ T7229]  sock_recvmsg+0x92/0xb0
[   53.427777][ T7229]  sock_read_iter+0x15f/0x1e0
[   53.432449][ T7229]  new_sync_read+0x389/0x4f0
[   53.437039][ T7229]  __vfs_read+0xb1/0xc0
[   53.441308][ T7229]  vfs_read+0x143/0x2c0
[   53.445449][ T7229]  ksys_read+0xd5/0x1b0
[   53.449727][ T7229]  __x64_sys_read+0x4c/0x60
[   53.454226][ T7229]  do_syscall_64+0xcc/0x370
[   53.458715][ T7229]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   53.464580][ T7229] 
[   53.466891][ T7229] Reported by Kernel Concurrency Sanitizer on:
[   53.473022][ T7229] CPU: 0 PID: 7229 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   53.480462][ T7229] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   53.490504][ T7229] ==================================================================
[   53.498555][ T7229] Kernel panic - not syncing: panic_on_warn set ...
[   53.505123][ T7229] CPU: 0 PID: 7229 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   53.512562][ T7229] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   53.522609][ T7229] Call Trace:
[   53.525887][ T7229]  dump_stack+0xf5/0x159
[   53.530108][ T7229]  panic+0x210/0x640
[   53.533984][ T7229]  ? __x64_sys_read+0x4c/0x60
[   53.538914][ T7229]  ? vprintk_func+0x8d/0x140
[   53.543487][ T7229]  kcsan_report.cold+0xc/0x10
[   53.548231][ T7229]  __kcsan_setup_watchpoint+0x32e/0x4a0
[   53.553756][ T7229]  __tsan_read8+0x2c/0x30
[   53.558160][ T7229]  tcp_recvmsg+0x470/0x1a30
[   53.562650][ T7229]  inet_recvmsg+0xbb/0x250
[   53.567046][ T7229]  ? __tsan_read8+0x2c/0x30
[   53.571530][ T7229]  ? inet_sendpage+0x100/0x100
[   53.576283][ T7229]  sock_recvmsg+0x92/0xb0
[   53.580672][ T7229]  sock_read_iter+0x15f/0x1e0
[   53.585367][ T7229]  new_sync_read+0x389/0x4f0
[   53.589947][ T7229]  __vfs_read+0xb1/0xc0
[   53.594085][ T7229]  vfs_read+0x143/0x2c0
[   53.598221][ T7229]  ksys_read+0xd5/0x1b0
[   53.603488][ T7229]  __x64_sys_read+0x4c/0x60
[   53.607993][ T7229]  do_syscall_64+0xcc/0x370
[   53.612480][ T7229]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   53.618351][ T7229] RIP: 0033:0x47c530
[   53.622343][ T7229] 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
[   53.641938][ T7229] RSP: 002b:000000c4203b3810 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
[   53.651045][ T7229] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   53.659010][ T7229] RDX: 0000000000001000 RSI: 000000c4203ca000 RDI: 0000000000000003
[   53.666974][ T7229] RBP: 000000c4203b3868 R08: 0000000000000000 R09: 0000000000000000
[   53.674931][ T7229] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000010
[   53.682910][ T7229] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff
[   53.692369][ T7229] Kernel Offset: disabled
[   53.696707][ T7229] Rebooting in 86400 seconds..