Warning: Permanently added '10.128.0.13' (ECDSA) to the list of known hosts.
2019/10/13 07:40:22 fuzzer started
2019/10/13 07:40:24 dialing manager at 10.128.0.105:43913
2019/10/13 07:40:24 syscalls: 2523
2019/10/13 07:40:24 code coverage: enabled
2019/10/13 07:40:24 comparison tracing: enabled
2019/10/13 07:40:24 extra coverage: extra coverage is not supported by the kernel
2019/10/13 07:40:24 setuid sandbox: enabled
2019/10/13 07:40:24 namespace sandbox: enabled
2019/10/13 07:40:24 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/13 07:40:24 fault injection: enabled
2019/10/13 07:40:24 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/13 07:40:24 net packet injection: enabled
2019/10/13 07:40:24 net device setup: enabled
2019/10/13 07:40:24 concurrency sanitizer: enabled
syzkaller login: [   58.050833][ T7187] ==================================================================
[   58.058962][ T7187] BUG: KCSAN: data-race in __zone_watermark_ok / free_one_page
[   58.066479][ T7187] 
[   58.068791][ T7187] read to 0xffff88812fffcf58 of 8 bytes by interrupt on cpu 1:
[   58.076416][ T7187]  __zone_watermark_ok+0x106/0x240
[   58.081515][ T7187]  get_page_from_freelist+0x629/0x2300
[   58.086957][ T7187]  __alloc_pages_nodemask+0x255/0x4d0
[   58.092311][ T7187]  alloc_pages_current+0xd1/0x170
[   58.097320][ T7187]  skb_page_frag_refill+0x16f/0x260
[   58.102504][ T7187]  try_fill_recv+0x51f/0xdc0
[   58.107085][ T7187]  virtnet_poll+0x64c/0x7d0
[   58.111568][ T7187]  net_rx_action+0x3ae/0xa50
[   58.116151][ T7187]  __do_softirq+0x115/0x33f
[   58.120643][ T7187]  run_ksoftirqd+0x46/0x60
[   58.125044][ T7187]  smpboot_thread_fn+0x37d/0x4a0
[   58.129983][ T7187]  kthread+0x1d4/0x200
[   58.134033][ T7187]  ret_from_fork+0x1f/0x30
[   58.138424][ T7187] 
[   58.140741][ T7187] write to 0xffff88812fffcf58 of 8 bytes by task 7187 on cpu 0:
[   58.148357][ T7187]  free_one_page+0x783/0x840
[   58.152929][ T7187]  __free_pages_ok+0x370/0x640
[   58.157682][ T7187]  free_compound_page+0x3d/0x50
[   58.162528][ T7187]  __put_compound_page+0x4e/0x70
[   58.167446][ T7187]  __put_page+0x54/0xd0
[   58.171602][ T7187]  skb_release_data+0x1ba/0x3a0
[   58.176432][ T7187]  skb_release_all+0x44/0x60
[   58.181006][ T7187]  __kfree_skb+0x1f/0x30
[   58.185244][ T7187]  tcp_recvmsg+0xf59/0x1a30
[   58.189730][ T7187]  inet_recvmsg+0xbb/0x250
[   58.194149][ T7187]  sock_recvmsg+0x92/0xb0
[   58.198461][ T7187]  sock_read_iter+0x15f/0x1e0
[   58.203123][ T7187]  new_sync_read+0x389/0x4f0
[   58.207697][ T7187] 
[   58.210004][ T7187] Reported by Kernel Concurrency Sanitizer on:
[   58.216148][ T7187] CPU: 0 PID: 7187 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   58.223234][ T7187] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   58.233269][ T7187] ==================================================================
[   58.241311][ T7187] Kernel panic - not syncing: panic_on_warn set ...
[   58.247883][ T7187] CPU: 0 PID: 7187 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   58.254980][ T7187] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   58.265024][ T7187] Call Trace:
[   58.268305][ T7187]  dump_stack+0xf5/0x159
[   58.272536][ T7187]  panic+0x209/0x639
[   58.276447][ T7187]  ? tcp_recvmsg+0xf59/0x1a30
[   58.281106][ T7187]  ? vprintk_func+0x8d/0x140
[   58.285688][ T7187]  kcsan_report.cold+0xc/0x1b
[   58.290354][ T7187]  __kcsan_setup_watchpoint+0x3ee/0x510
[   58.295884][ T7187]  __tsan_write8+0x32/0x40
[   58.300286][ T7187]  free_one_page+0x783/0x840
[   58.304869][ T7187]  __free_pages_ok+0x370/0x640
[   58.309628][ T7187]  free_compound_page+0x3d/0x50
[   58.314465][ T7187]  __put_compound_page+0x4e/0x70
[   58.319386][ T7187]  __put_page+0x54/0xd0
[   58.323531][ T7187]  skb_release_data+0x1ba/0x3a0
[   58.328370][ T7187]  skb_release_all+0x44/0x60
[   58.332951][ T7187]  __kfree_skb+0x1f/0x30
[   58.337198][ T7187]  tcp_recvmsg+0xf59/0x1a30
[   58.341703][ T7187]  inet_recvmsg+0xbb/0x250
[   58.346104][ T7187]  ? __tsan_read8+0x2c/0x30
[   58.350599][ T7187]  ? inet_sendpage+0x100/0x100
[   58.355434][ T7187]  sock_recvmsg+0x92/0xb0
[   58.359778][ T7187]  sock_read_iter+0x15f/0x1e0
[   58.364448][ T7187]  new_sync_read+0x389/0x4f0
[   58.369032][ T7187]  __vfs_read+0xb1/0xc0
[   58.373178][ T7187]  vfs_read+0x143/0x2c0
[   58.377330][ T7187]  ksys_read+0xd5/0x1b0
[   58.381475][ T7187]  __x64_sys_read+0x4c/0x60
[   58.385986][ T7187]  do_syscall_64+0xcf/0x2f0
[   58.390487][ T7187]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   58.396362][ T7187] RIP: 0033:0x47c530
[   58.400254][ T7187] 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
[   58.419858][ T7187] RSP: 002b:000000c4204eb810 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
[   58.428429][ T7187] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   58.436383][ T7187] RDX: 0000000000001000 RSI: 000000c420372000 RDI: 0000000000000003
[   58.444426][ T7187] RBP: 000000c4204eb868 R08: 0000000000000000 R09: 0000000000000000
[   58.452380][ T7187] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000010
[   58.460778][ T7187] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff
[   59.598099][ T7187] Shutting down cpus with NMI
[   59.604534][ T7187] Kernel Offset: disabled
[   59.608928][ T7187] Rebooting in 86400 seconds..