Warning: Permanently added '10.128.0.188' (ECDSA) to the list of known hosts.
2019/10/15 07:31:33 fuzzer started
2019/10/15 07:31:35 dialing manager at 10.128.0.105:33683
2019/10/15 07:31:35 syscalls: 2523
2019/10/15 07:31:35 code coverage: enabled
2019/10/15 07:31:35 comparison tracing: enabled
2019/10/15 07:31:35 extra coverage: extra coverage is not supported by the kernel
2019/10/15 07:31:35 setuid sandbox: enabled
2019/10/15 07:31:35 namespace sandbox: enabled
2019/10/15 07:31:35 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/15 07:31:35 fault injection: enabled
2019/10/15 07:31:35 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/15 07:31:35 net packet injection: enabled
2019/10/15 07:31:35 net device setup: enabled
2019/10/15 07:31:35 concurrency sanitizer: enabled
syzkaller login: [   50.412289][    C0] ==================================================================
[   50.420427][    C0] BUG: KCSAN: data-race in __zone_watermark_ok / free_one_page
[   50.427953][    C0] 
[   50.430283][    C0] write to 0xffff88812fffcf58 of 8 bytes by task 7331 on cpu 1:
[   50.438002][    C0]  free_one_page+0x214/0x840
[   50.442590][    C0]  __free_pages_ok+0x370/0x640
[   50.447347][    C0]  free_compound_page+0x3d/0x50
[   50.452261][    C0]  __put_compound_page+0x4e/0x70
[   50.457191][    C0]  __put_page+0x54/0xd0
[   50.461327][    C0]  skb_release_data+0x1ba/0x3a0
[   50.466170][    C0]  skb_release_all+0x44/0x60
[   50.470752][    C0]  __kfree_skb+0x1f/0x30
[   50.474984][    C0]  tcp_recvmsg+0xf59/0x1a30
[   50.479467][    C0]  inet_recvmsg+0xbb/0x250
[   50.483858][    C0]  sock_recvmsg+0x92/0xb0
[   50.488179][    C0]  sock_read_iter+0x15f/0x1e0
[   50.492836][    C0]  new_sync_read+0x389/0x4f0
[   50.497403][    C0]  __vfs_read+0xb1/0xc0
[   50.501526][    C0] 
[   50.503838][    C0] read to 0xffff88812fffcf58 of 8 bytes by interrupt on cpu 0:
[   50.511383][    C0]  __zone_watermark_ok+0x106/0x240
[   50.516485][    C0]  get_page_from_freelist+0x629/0x2300
[   50.521948][    C0]  __alloc_pages_nodemask+0x255/0x4d0
[   50.527301][    C0]  page_frag_alloc+0x11e/0x2d0
[   50.532046][    C0]  __napi_alloc_skb+0x172/0x210
[   50.536897][    C0]  page_to_skb+0x8d/0x480
[   50.541205][    C0]  receive_buf+0x17c7/0x30b0
[   50.545772][    C0]  virtnet_poll+0x436/0x7d0
[   50.550250][    C0]  net_rx_action+0x3ae/0xa50
[   50.554832][    C0]  __do_softirq+0x115/0x33f
[   50.559332][    C0]  run_ksoftirqd+0x46/0x60
[   50.563722][    C0]  smpboot_thread_fn+0x37d/0x4a0
[   50.568636][    C0]  kthread+0x1d4/0x200
[   50.572685][    C0] 
[   50.574985][    C0] Reported by Kernel Concurrency Sanitizer on:
[   50.581115][    C0] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 5.3.0+ #0
[   50.588038][    C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   50.598087][    C0] ==================================================================
[   50.610296][    C0] Kernel panic - not syncing: panic_on_warn set ...
[   50.616886][    C0] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 5.3.0+ #0
[   50.623807][    C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   50.633853][    C0] Call Trace:
[   50.637134][    C0]  dump_stack+0xf5/0x159
[   50.641358][    C0]  panic+0x209/0x639
[   50.645240][    C0]  ? net_rx_action+0x3ae/0xa50
[   50.649990][    C0]  ? vprintk_func+0x8d/0x140
[   50.654763][    C0]  kcsan_report.cold+0xc/0x1b
[   50.659422][    C0]  __kcsan_setup_watchpoint+0x3ee/0x510
[   50.664946][    C0]  __tsan_read8+0x2c/0x30
[   50.669257][    C0]  __zone_watermark_ok+0x106/0x240
[   50.677564][    C0]  get_page_from_freelist+0x629/0x2300
[   50.683008][    C0]  ? __kcsan_setup_watchpoint+0x96/0x510
[   50.689576][    C0]  ? __tsan_read8+0x2c/0x30
[   50.694063][    C0]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[   50.700309][    C0]  ? __kcsan_setup_watchpoint+0x96/0x510
[   50.705946][    C0]  __alloc_pages_nodemask+0x255/0x4d0
[   50.711313][    C0]  page_frag_alloc+0x11e/0x2d0
[   50.716054][    C0]  ? __kcsan_setup_watchpoint+0x96/0x510
[   50.721681][    C0]  __napi_alloc_skb+0x172/0x210
[   50.726511][    C0]  page_to_skb+0x8d/0x480
[   50.730841][    C0]  receive_buf+0x17c7/0x30b0
[   50.735428][    C0]  ? __tsan_write8+0x32/0x40
[   50.740016][    C0]  ? virtqueue_get_buf_ctx+0x4fd/0x5c0
[   50.745451][    C0]  ? __kcsan_setup_watchpoint+0x96/0x510
[   50.751065][    C0]  ? __kcsan_setup_watchpoint+0x96/0x510
[   50.756698][    C0]  virtnet_poll+0x436/0x7d0
[   50.761184][    C0]  ? __queue_work+0x910/0x910
[   50.765892][    C0]  net_rx_action+0x3ae/0xa50
[   50.770507][    C0]  __do_softirq+0x115/0x33f
[   50.775005][    C0]  ? takeover_tasklets+0x250/0x250
[   50.780092][    C0]  run_ksoftirqd+0x46/0x60
[   50.789269][    C0]  smpboot_thread_fn+0x37d/0x4a0
[   50.795343][    C0]  kthread+0x1d4/0x200
[   50.799498][    C0]  ? constant_test_bit.constprop.0+0x30/0x30
[   50.805471][    C0]  ? kthread_bind+0x50/0x50
[   50.809953][    C0]  ret_from_fork+0x1f/0x30
[   50.815664][    C0] Kernel Offset: disabled
[   50.825379][    C0] Rebooting in 86400 seconds..