Warning: Permanently added '10.128.0.124' (ECDSA) to the list of known hosts.
2019/10/12 03:20:33 fuzzer started
2019/10/12 03:20:34 dialing manager at 10.128.0.105:43913
2019/10/12 03:20:34 syscalls: 2523
2019/10/12 03:20:34 code coverage: enabled
2019/10/12 03:20:34 comparison tracing: enabled
2019/10/12 03:20:34 extra coverage: extra coverage is not supported by the kernel
2019/10/12 03:20:34 setuid sandbox: enabled
2019/10/12 03:20:34 namespace sandbox: enabled
2019/10/12 03:20:34 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/12 03:20:34 fault injection: enabled
2019/10/12 03:20:34 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/12 03:20:34 net packet injection: enabled
2019/10/12 03:20:34 net device setup: enabled
2019/10/12 03:20:34 concurrency sanitizer: enabled
syzkaller login: [   52.633812][ T7213] ==================================================================
[   52.641943][ T7213] BUG: KCSAN: data-race in __zone_watermark_ok / free_one_page
[   52.649464][ T7213] 
[   52.651779][ T7213] read to 0xffff88812fffcf58 of 8 bytes by interrupt on cpu 0:
[   52.659325][ T7213]  __zone_watermark_ok+0x106/0x240
[   52.664435][ T7213]  get_page_from_freelist+0x629/0x2300
[   52.669916][ T7213]  __alloc_pages_nodemask+0x255/0x4d0
[   52.675290][ T7213]  page_frag_alloc+0x11e/0x2d0
[   52.680042][ T7213]  __napi_alloc_skb+0x172/0x210
[   52.684878][ T7213]  page_to_skb+0x8d/0x480
[   52.689306][ T7213]  receive_buf+0x17c7/0x30b0
[   52.693887][ T7213]  virtnet_poll+0x436/0x7d0
[   52.698396][ T7213]  net_rx_action+0x3ae/0xa50
[   52.702973][ T7213]  __do_softirq+0x115/0x33f
[   52.707489][ T7213]  run_ksoftirqd+0x46/0x60
[   52.711911][ T7213]  smpboot_thread_fn+0x37d/0x4a0
[   52.716850][ T7213]  kthread+0x1d4/0x200
[   52.720903][ T7213]  ret_from_fork+0x1f/0x30
[   52.725293][ T7213] 
[   52.727608][ T7213] write to 0xffff88812fffcf58 of 8 bytes by task 7213 on cpu 1:
[   52.735225][ T7213]  free_one_page+0x214/0x840
[   52.739802][ T7213]  __free_pages_ok+0x370/0x640
[   52.744558][ T7213]  free_compound_page+0x3d/0x50
[   52.749410][ T7213]  __put_compound_page+0x4e/0x70
[   52.754328][ T7213]  __put_page+0x54/0xd0
[   52.758466][ T7213]  skb_release_data+0x1ba/0x3a0
[   52.764105][ T7213]  skb_release_all+0x44/0x60
[   52.768685][ T7213]  __kfree_skb+0x1f/0x30
[   52.772916][ T7213]  tcp_recvmsg+0xf59/0x1a30
[   52.777427][ T7213]  inet_recvmsg+0xbb/0x250
[   52.781832][ T7213]  sock_recvmsg+0x92/0xb0
[   52.786150][ T7213]  sock_read_iter+0x15f/0x1e0
[   52.790818][ T7213]  new_sync_read+0x389/0x4f0
[   52.795399][ T7213] 
[   52.797710][ T7213] Reported by Kernel Concurrency Sanitizer on:
[   52.803848][ T7213] CPU: 1 PID: 7213 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   52.810934][ T7213] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   52.820970][ T7213] ==================================================================
[   52.829016][ T7213] Kernel panic - not syncing: panic_on_warn set ...
[   52.835599][ T7213] CPU: 1 PID: 7213 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   52.842692][ T7213] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   52.852725][ T7213] Call Trace:
[   52.856004][ T7213]  dump_stack+0xf5/0x159
[   52.860237][ T7213]  panic+0x209/0x639
[   52.864119][ T7213]  ? tcp_recvmsg+0xf59/0x1a30
[   52.868783][ T7213]  ? vprintk_func+0x8d/0x140
[   52.873360][ T7213]  kcsan_report.cold+0xc/0x1b
[   52.878041][ T7213]  __kcsan_setup_watchpoint+0x3ee/0x510
[   52.883578][ T7213]  __tsan_write8+0x32/0x40
[   52.887998][ T7213]  free_one_page+0x214/0x840
[   52.892605][ T7213]  __free_pages_ok+0x370/0x640
[   52.897372][ T7213]  free_compound_page+0x3d/0x50
[   52.902209][ T7213]  __put_compound_page+0x4e/0x70
[   52.907131][ T7213]  __put_page+0x54/0xd0
[   52.911274][ T7213]  skb_release_data+0x1ba/0x3a0
[   52.916131][ T7213]  skb_release_all+0x44/0x60
[   52.920710][ T7213]  __kfree_skb+0x1f/0x30
[   52.924937][ T7213]  tcp_recvmsg+0xf59/0x1a30
[   52.929439][ T7213]  inet_recvmsg+0xbb/0x250
[   52.933865][ T7213]  ? __tsan_read8+0x2c/0x30
[   52.938357][ T7213]  ? inet_sendpage+0x100/0x100
[   52.943106][ T7213]  sock_recvmsg+0x92/0xb0
[   52.947436][ T7213]  sock_read_iter+0x15f/0x1e0
[   52.952107][ T7213]  new_sync_read+0x389/0x4f0
[   52.956729][ T7213]  __vfs_read+0xb1/0xc0
[   52.960876][ T7213]  vfs_read+0x143/0x2c0
[   52.965019][ T7213]  ksys_read+0xd5/0x1b0
[   52.969199][ T7213]  __x64_sys_read+0x4c/0x60
[   52.973691][ T7213]  do_syscall_64+0xcf/0x2f0
[   52.978185][ T7213]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   52.984062][ T7213] RIP: 0033:0x47c530
[   52.987951][ T7213] 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
[   53.007726][ T7213] RSP: 002b:000000c4204d97d8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000
[   53.016122][ T7213] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   53.024094][ T7213] RDX: 0000000000001000 RSI: 000000c4203d8000 RDI: 0000000000000003
[   53.032054][ T7213] RBP: 000000c4204d9830 R08: 0000000000000000 R09: 0000000000000000
[   53.040023][ T7213] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000080
[   53.047985][ T7213] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff
[   54.184092][ T7213] Shutting down cpus with NMI
[   54.190320][ T7213] Kernel Offset: disabled
[   54.194642][ T7213] Rebooting in 86400 seconds..