Warning: Permanently added '10.128.0.187' (ECDSA) to the list of known hosts.
2019/10/15 04:44:59 fuzzer started
2019/10/15 04:45:00 dialing manager at 10.128.0.105:33683
2019/10/15 04:45:00 syscalls: 2523
2019/10/15 04:45:00 code coverage: enabled
2019/10/15 04:45:00 comparison tracing: enabled
2019/10/15 04:45:00 extra coverage: extra coverage is not supported by the kernel
2019/10/15 04:45:00 setuid sandbox: enabled
2019/10/15 04:45:00 namespace sandbox: enabled
2019/10/15 04:45:00 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/15 04:45:00 fault injection: enabled
2019/10/15 04:45:00 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/15 04:45:00 net packet injection: enabled
2019/10/15 04:45:00 net device setup: enabled
2019/10/15 04:45:00 concurrency sanitizer: enabled
syzkaller login: [   50.645847][ T7180] ==================================================================
[   50.653992][ T7180] BUG: KCSAN: data-race in __zone_watermark_ok / free_one_page
[   50.661599][ T7180] 
[   50.664226][ T7180] read to 0xffff88812fffcf58 of 8 bytes by interrupt on cpu 0:
[   50.671788][ T7180]  __zone_watermark_ok+0x106/0x240
[   50.676923][ T7180]  get_page_from_freelist+0x629/0x2300
[   50.682372][ T7180]  __alloc_pages_nodemask+0x255/0x4d0
[   50.687818][ T7180]  alloc_pages_current+0xd1/0x170
[   50.692842][ T7180]  skb_page_frag_refill+0x16f/0x260
[   50.698237][ T7180]  try_fill_recv+0x51f/0xdc0
[   50.703091][ T7180]  virtnet_poll+0x64c/0x7d0
[   50.707594][ T7180]  net_rx_action+0x3ae/0xa50
[   50.712262][ T7180]  __do_softirq+0x115/0x33f
[   50.717012][ T7180]  run_ksoftirqd+0x46/0x60
[   50.721417][ T7180]  smpboot_thread_fn+0x37d/0x4a0
[   50.726348][ T7180]  kthread+0x1d4/0x200
[   50.730400][ T7180]  ret_from_fork+0x1f/0x30
[   50.734880][ T7180] 
[   50.737211][ T7180] write to 0xffff88812fffcf58 of 8 bytes by task 7180 on cpu 1:
[   50.744828][ T7180]  free_one_page+0x214/0x840
[   50.749595][ T7180]  __free_pages_ok+0x370/0x640
[   50.754436][ T7180]  free_compound_page+0x3d/0x50
[   50.759376][ T7180]  __put_compound_page+0x4e/0x70
[   50.764300][ T7180]  __put_page+0x54/0xd0
[   50.768575][ T7180]  skb_release_data+0x1ba/0x3a0
[   50.773435][ T7180]  skb_release_all+0x44/0x60
[   50.778813][ T7180]  __kfree_skb+0x1f/0x30
[   50.783485][ T7180]  tcp_recvmsg+0xf59/0x1a30
[   50.788149][ T7180]  inet_recvmsg+0xbb/0x250
[   50.792640][ T7180]  sock_recvmsg+0x92/0xb0
[   50.797349][ T7180]  sock_read_iter+0x15f/0x1e0
[   50.802188][ T7180]  new_sync_read+0x389/0x4f0
[   50.806762][ T7180] 
[   50.809108][ T7180] Reported by Kernel Concurrency Sanitizer on:
[   50.815442][ T7180] CPU: 1 PID: 7180 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   50.822936][ T7180] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   50.833159][ T7180] ==================================================================
[   50.841208][ T7180] Kernel panic - not syncing: panic_on_warn set ...
[   50.847786][ T7180] CPU: 1 PID: 7180 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   50.855050][ T7180] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   50.865274][ T7180] Call Trace:
[   50.868607][ T7180]  dump_stack+0xf5/0x159
[   50.873050][ T7180]  panic+0x209/0x639
[   50.876938][ T7180]  ? tcp_recvmsg+0xf59/0x1a30
[   50.881690][ T7180]  ? vprintk_func+0x8d/0x140
[   50.886451][ T7180]  kcsan_report.cold+0xc/0x1b
[   50.891219][ T7180]  __kcsan_setup_watchpoint+0x3ee/0x510
[   50.896769][ T7180]  __tsan_write8+0x32/0x40
[   50.901349][ T7180]  free_one_page+0x214/0x840
[   50.906122][ T7180]  __free_pages_ok+0x370/0x640
[   50.910879][ T7180]  free_compound_page+0x3d/0x50
[   50.916065][ T7180]  __put_compound_page+0x4e/0x70
[   50.921276][ T7180]  __put_page+0x54/0xd0
[   50.925510][ T7180]  skb_release_data+0x1ba/0x3a0
[   50.930436][ T7180]  skb_release_all+0x44/0x60
[   50.935015][ T7180]  __kfree_skb+0x1f/0x30
[   50.939245][ T7180]  tcp_recvmsg+0xf59/0x1a30
[   50.943920][ T7180]  ? debug_smp_processor_id+0x4c/0x172
[   50.949472][ T7180]  inet_recvmsg+0xbb/0x250
[   50.954357][ T7180]  ? __tsan_read8+0x2c/0x30
[   50.959028][ T7180]  ? inet_sendpage+0x100/0x100
[   50.963886][ T7180]  sock_recvmsg+0x92/0xb0
[   50.968221][ T7180]  sock_read_iter+0x15f/0x1e0
[   50.972912][ T7180]  new_sync_read+0x389/0x4f0
[   50.977759][ T7180]  __vfs_read+0xb1/0xc0
[   50.981949][ T7180]  vfs_read+0x143/0x2c0
[   50.986363][ T7180]  ksys_read+0xd5/0x1b0
[   50.990527][ T7180]  __x64_sys_read+0x4c/0x60
[   50.995111][ T7180]  do_syscall_64+0xcf/0x2f0
[   50.999783][ T7180]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   51.005662][ T7180] RIP: 0033:0x47c530
[   51.009889][ T7180] 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
[   51.029657][ T7180] RSP: 002b:000000c4203c57d8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000
[   51.041275][ T7180] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   51.050037][ T7180] RDX: 0000000000001000 RSI: 000000c420148000 RDI: 0000000000000003
[   51.058201][ T7180] RBP: 000000c4203c5830 R08: 0000000000000000 R09: 0000000000000000
[   51.067039][ T7180] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000004
[   51.075878][ T7180] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff
[   52.222173][ T7180] Shutting down cpus with NMI
[   52.228804][ T7180] Kernel Offset: disabled
[   52.233145][ T7180] Rebooting in 86400 seconds..