Warning: Permanently added '10.128.0.8' (ECDSA) to the list of known hosts.
2019/10/14 00:18:53 fuzzer started
2019/10/14 00:18:54 dialing manager at 10.128.0.105:40973
2019/10/14 00:18:54 syscalls: 2523
2019/10/14 00:18:54 code coverage: enabled
2019/10/14 00:18:54 comparison tracing: enabled
2019/10/14 00:18:54 extra coverage: extra coverage is not supported by the kernel
2019/10/14 00:18:54 setuid sandbox: enabled
2019/10/14 00:18:54 namespace sandbox: enabled
2019/10/14 00:18:54 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/14 00:18:54 fault injection: enabled
2019/10/14 00:18:54 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/14 00:18:54 net packet injection: enabled
2019/10/14 00:18:54 net device setup: enabled
2019/10/14 00:18:54 concurrency sanitizer: enabled
[   46.876627][ T7308] ==================================================================
[   46.884739][ T7308] BUG: KCSAN: data-race in __zone_watermark_ok / free_one_page
[   46.892266][ T7308] 
[   46.894580][ T7308] read to 0xffff88812fffcf58 of 8 bytes by interrupt on cpu 0:
[   46.902107][ T7308]  __zone_watermark_ok+0x106/0x240
[   46.907213][ T7308]  get_page_from_freelist+0x629/0x2300
[   46.912655][ T7308]  __alloc_pages_nodemask+0x255/0x4d0
[   46.918010][ T7308]  page_frag_alloc+0x11e/0x2d0
[   46.922759][ T7308]  __napi_alloc_skb+0x172/0x210
[   46.927592][ T7308]  page_to_skb+0x8d/0x480
[   46.931905][ T7308]  receive_buf+0x17c7/0x30b0
[   46.936488][ T7308]  virtnet_poll+0x436/0x7d0
[   46.940980][ T7308]  net_rx_action+0x3ae/0xa50
[   46.945550][ T7308]  __do_softirq+0x115/0x33f
[   46.950033][ T7308]  run_ksoftirqd+0x46/0x60
[   46.954432][ T7308]  smpboot_thread_fn+0x37d/0x4a0
[   46.959359][ T7308]  kthread+0x1d4/0x200
[   46.963416][ T7308]  ret_from_fork+0x1f/0x30
[   46.967804][ T7308] 
[   46.970128][ T7308] write to 0xffff88812fffcf58 of 8 bytes by task 7308 on cpu 1:
[   46.977737][ T7308]  free_one_page+0x214/0x840
[   46.982320][ T7308]  __free_pages_ok+0x370/0x640
[   46.987065][ T7308]  free_compound_page+0x3d/0x50
[   46.991902][ T7308]  __put_compound_page+0x4e/0x70
[   46.996817][ T7308]  __put_page+0x54/0xd0
[   47.000955][ T7308]  skb_release_data+0x1ba/0x3a0
[   47.005801][ T7308]  skb_release_all+0x44/0x60
[   47.010374][ T7308]  __kfree_skb+0x1f/0x30
[   47.014602][ T7308]  tcp_recvmsg+0xf59/0x1a30
[   47.019091][ T7308]  inet_recvmsg+0xbb/0x250
[   47.023494][ T7308]  sock_recvmsg+0x92/0xb0
[   47.027808][ T7308]  sock_read_iter+0x15f/0x1e0
[   47.032470][ T7308]  new_sync_read+0x389/0x4f0
[   47.037046][ T7308] 
[   47.039354][ T7308] Reported by Kernel Concurrency Sanitizer on:
[   47.045494][ T7308] CPU: 1 PID: 7308 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   47.052579][ T7308] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   47.062614][ T7308] ==================================================================
[   47.070654][ T7308] Kernel panic - not syncing: panic_on_warn set ...
[   47.077221][ T7308] CPU: 1 PID: 7308 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   47.084311][ T7308] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   47.094342][ T7308] Call Trace:
[   47.097618][ T7308]  dump_stack+0xf5/0x159
[   47.101862][ T7308]  panic+0x209/0x639
[   47.105749][ T7308]  ? tcp_recvmsg+0xf59/0x1a30
[   47.110414][ T7308]  ? vprintk_func+0x8d/0x140
[   47.114997][ T7308]  kcsan_report.cold+0xc/0x1b
[   47.119667][ T7308]  __kcsan_setup_watchpoint+0x3ee/0x510
[   47.125217][ T7308]  __tsan_write8+0x32/0x40
[   47.129628][ T7308]  free_one_page+0x214/0x840
[   47.134213][ T7308]  __free_pages_ok+0x370/0x640
[   47.138971][ T7308]  free_compound_page+0x3d/0x50
[   47.143813][ T7308]  __put_compound_page+0x4e/0x70
[   47.148740][ T7308]  __put_page+0x54/0xd0
[   47.152884][ T7308]  skb_release_data+0x1ba/0x3a0
[   47.157722][ T7308]  skb_release_all+0x44/0x60
[   47.162295][ T7308]  __kfree_skb+0x1f/0x30
[   47.166523][ T7308]  tcp_recvmsg+0xf59/0x1a30
[   47.171023][ T7308]  inet_recvmsg+0xbb/0x250
[   47.175423][ T7308]  ? __tsan_read8+0x2c/0x30
[   47.179913][ T7308]  ? inet_sendpage+0x100/0x100
[   47.184661][ T7308]  sock_recvmsg+0x92/0xb0
[   47.188974][ T7308]  sock_read_iter+0x15f/0x1e0
[   47.193643][ T7308]  new_sync_read+0x389/0x4f0
[   47.198226][ T7308]  __vfs_read+0xb1/0xc0
[   47.202369][ T7308]  vfs_read+0x143/0x2c0
[   47.206509][ T7308]  ksys_read+0xd5/0x1b0
[   47.210650][ T7308]  __x64_sys_read+0x4c/0x60
[   47.215138][ T7308]  do_syscall_64+0xcf/0x2f0
[   47.219631][ T7308]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   47.225506][ T7308] RIP: 0033:0x47c530
[   47.229390][ T7308] 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
[   47.248984][ T7308] RSP: 002b:000000c4203bf7d8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000
[   47.257401][ T7308] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   47.265381][ T7308] RDX: 0000000000001000 RSI: 000000c420170000 RDI: 0000000000000003
[   47.273342][ T7308] RBP: 000000c4203bf830 R08: 0000000000000000 R09: 0000000000000000
[   47.281306][ T7308] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000004
[   47.289261][ T7308] R13: ffffffffffffffff R14: 0000000000000004 R15: ffffffffffffffff
[   48.428429][ T7308] Shutting down cpus with NMI
[   48.434302][ T7308] Kernel Offset: disabled
[   48.438622][ T7308] Rebooting in 86400 seconds..