Warning: Permanently added '10.128.0.254' (ECDSA) to the list of known hosts.
2019/10/15 12:55:56 fuzzer started
2019/10/15 12:55:57 dialing manager at 10.128.0.105:38903
2019/10/15 12:55:58 syscalls: 2523
2019/10/15 12:55:58 code coverage: enabled
2019/10/15 12:55:58 comparison tracing: enabled
2019/10/15 12:55:58 extra coverage: extra coverage is not supported by the kernel
2019/10/15 12:55:58 setuid sandbox: enabled
2019/10/15 12:55:58 namespace sandbox: enabled
2019/10/15 12:55:58 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/15 12:55:58 fault injection: enabled
2019/10/15 12:55:58 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/15 12:55:58 net packet injection: enabled
2019/10/15 12:55:58 net device setup: enabled
2019/10/15 12:55:58 concurrency sanitizer: enabled
syzkaller login: [   48.970306][ T7323] ==================================================================
[   48.978445][ T7323] BUG: KCSAN: data-race in __zone_watermark_ok / free_one_page
[   48.985995][ T7323] 
[   48.988310][ T7323] read to 0xffff88812fffcf58 of 8 bytes by interrupt on cpu 0:
[   48.995855][ T7323]  __zone_watermark_ok+0x106/0x240
[   49.000962][ T7323]  get_page_from_freelist+0x629/0x2300
[   49.006415][ T7323]  __alloc_pages_nodemask+0x255/0x4d0
[   49.011772][ T7323]  alloc_pages_current+0xd1/0x170
[   49.016812][ T7323]  skb_page_frag_refill+0x16f/0x260
[   49.022352][ T7323]  try_fill_recv+0x51f/0xdc0
[   49.026931][ T7323]  virtnet_poll+0x64c/0x7d0
[   49.031419][ T7323]  net_rx_action+0x3ae/0xa50
[   49.035995][ T7323]  __do_softirq+0x115/0x33f
[   49.040567][ T7323]  run_ksoftirqd+0x46/0x60
[   49.044995][ T7323]  smpboot_thread_fn+0x37d/0x4a0
[   49.049946][ T7323]  kthread+0x1d4/0x200
[   49.054001][ T7323]  ret_from_fork+0x1f/0x30
[   49.058399][ T7323] 
[   49.060717][ T7323] write to 0xffff88812fffcf58 of 8 bytes by task 7323 on cpu 1:
[   49.068367][ T7323]  free_one_page+0x783/0x840
[   49.072964][ T7323]  __free_pages_ok+0x370/0x640
[   49.077714][ T7323]  free_compound_page+0x3d/0x50
[   49.082571][ T7323]  __put_compound_page+0x4e/0x70
[   49.087582][ T7323]  __put_page+0x54/0xd0
[   49.091726][ T7323]  skb_release_data+0x1ba/0x3a0
[   49.096566][ T7323]  skb_release_all+0x44/0x60
[   49.101142][ T7323]  __kfree_skb+0x1f/0x30
[   49.105372][ T7323]  tcp_recvmsg+0xf59/0x1a30
[   49.109953][ T7323]  inet_recvmsg+0xbb/0x250
[   49.114356][ T7323]  sock_recvmsg+0x92/0xb0
[   49.118688][ T7323]  sock_read_iter+0x15f/0x1e0
[   49.123354][ T7323]  new_sync_read+0x389/0x4f0
[   49.127928][ T7323] 
[   49.130253][ T7323] Reported by Kernel Concurrency Sanitizer on:
[   49.136402][ T7323] CPU: 1 PID: 7323 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   49.143577][ T7323] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   49.153617][ T7323] ==================================================================
[   49.162095][ T7323] Kernel panic - not syncing: panic_on_warn set ...
[   49.168670][ T7323] CPU: 1 PID: 7323 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   49.175846][ T7323] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   49.185882][ T7323] Call Trace:
[   49.189165][ T7323]  dump_stack+0xf5/0x159
[   49.193401][ T7323]  panic+0x209/0x639
[   49.197285][ T7323]  ? tcp_recvmsg+0xf59/0x1a30
[   49.201947][ T7323]  ? vprintk_func+0x8d/0x140
[   49.206527][ T7323]  kcsan_report.cold+0xc/0x1b
[   49.211196][ T7323]  __kcsan_setup_watchpoint+0x3ee/0x510
[   49.216742][ T7323]  __tsan_write8+0x32/0x40
[   49.221153][ T7323]  free_one_page+0x783/0x840
[   49.225744][ T7323]  __free_pages_ok+0x370/0x640
[   49.230501][ T7323]  free_compound_page+0x3d/0x50
[   49.235339][ T7323]  __put_compound_page+0x4e/0x70
[   49.240280][ T7323]  __put_page+0x54/0xd0
[   49.244426][ T7323]  skb_release_data+0x1ba/0x3a0
[   49.249268][ T7323]  skb_release_all+0x44/0x60
[   49.253848][ T7323]  __kfree_skb+0x1f/0x30
[   49.258102][ T7323]  tcp_recvmsg+0xf59/0x1a30
[   49.263304][ T7323]  inet_recvmsg+0xbb/0x250
[   49.267706][ T7323]  ? __tsan_read8+0x2c/0x30
[   49.272197][ T7323]  ? inet_sendpage+0x100/0x100
[   49.276948][ T7323]  sock_recvmsg+0x92/0xb0
[   49.281265][ T7323]  sock_read_iter+0x15f/0x1e0
[   49.285937][ T7323]  new_sync_read+0x389/0x4f0
[   49.290538][ T7323]  __vfs_read+0xb1/0xc0
[   49.294685][ T7323]  vfs_read+0x143/0x2c0
[   49.299004][ T7323]  ksys_read+0xd5/0x1b0
[   49.303151][ T7323]  __x64_sys_read+0x4c/0x60
[   49.307652][ T7323]  do_syscall_64+0xcf/0x2f0
[   49.312151][ T7323]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   49.318050][ T7323] RIP: 0033:0x47c530
[   49.321949][ T7323] 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
[   49.341538][ T7323] RSP: 002b:000000c4204ed7d8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000
[   49.349947][ T7323] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   49.357904][ T7323] RDX: 0000000000001000 RSI: 000000c420056000 RDI: 0000000000000003
[   49.365863][ T7323] RBP: 000000c4204ed830 R08: 0000000000000000 R09: 0000000000000000
[   49.373822][ T7323] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000004
[   49.381802][ T7323] R13: ffffffffffffffff R14: 0000000000000004 R15: ffffffffffffffff
[   50.516002][ T7323] Shutting down cpus with NMI
[   50.522585][ T7323] Kernel Offset: disabled
[   50.527034][ T7323] Rebooting in 86400 seconds..