Warning: Permanently added '10.128.0.190' (ECDSA) to the list of known hosts.
2019/10/13 06:16:58 fuzzer started
2019/10/13 06:17:00 dialing manager at 10.128.0.105:43913
2019/10/13 06:17:00 syscalls: 2523
2019/10/13 06:17:00 code coverage: enabled
2019/10/13 06:17:00 comparison tracing: enabled
2019/10/13 06:17:00 extra coverage: extra coverage is not supported by the kernel
2019/10/13 06:17:00 setuid sandbox: enabled
2019/10/13 06:17:00 namespace sandbox: enabled
2019/10/13 06:17:00 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/13 06:17:00 fault injection: enabled
2019/10/13 06:17:00 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/13 06:17:00 net packet injection: enabled
2019/10/13 06:17:00 net device setup: enabled
2019/10/13 06:17:00 concurrency sanitizer: enabled
syzkaller login: [   57.998263][ T7303] ==================================================================
[   58.006481][ T7303] BUG: KCSAN: data-race in __zone_watermark_ok / free_one_page
[   58.014065][ T7303] 
[   58.016391][ T7303] read to 0xffff88812fffcf58 of 8 bytes by interrupt on cpu 0:
[   58.023931][ T7303]  __zone_watermark_ok+0x106/0x240
[   58.035115][ T7303]  get_page_from_freelist+0x629/0x2300
[   58.040680][ T7303]  __alloc_pages_nodemask+0x255/0x4d0
[   58.046142][ T7303]  alloc_pages_current+0xd1/0x170
[   58.051168][ T7303]  skb_page_frag_refill+0x16f/0x260
[   58.056360][ T7303]  try_fill_recv+0x51f/0xdc0
[   58.061027][ T7303]  virtnet_poll+0x64c/0x7d0
[   58.065525][ T7303]  net_rx_action+0x3ae/0xa50
[   58.070106][ T7303]  __do_softirq+0x115/0x33f
[   58.075120][ T7303]  run_ksoftirqd+0x46/0x60
[   58.079531][ T7303]  smpboot_thread_fn+0x37d/0x4a0
[   58.084488][ T7303]  kthread+0x1d4/0x200
[   58.088550][ T7303]  ret_from_fork+0x1f/0x30
[   58.093037][ T7303] 
[   58.095391][ T7303] write to 0xffff88812fffcf58 of 8 bytes by task 7303 on cpu 1:
[   58.103012][ T7303]  free_one_page+0x214/0x840
[   58.107592][ T7303]  __free_pages_ok+0x370/0x640
[   58.112346][ T7303]  free_compound_page+0x3d/0x50
[   58.117261][ T7303]  __put_compound_page+0x4e/0x70
[   58.122238][ T7303]  __put_page+0x54/0xd0
[   58.126432][ T7303]  skb_release_data+0x1ba/0x3a0
[   58.131364][ T7303]  skb_release_all+0x44/0x60
[   58.135946][ T7303]  __kfree_skb+0x1f/0x30
[   58.140183][ T7303]  tcp_recvmsg+0xf59/0x1a30
[   58.144681][ T7303]  inet_recvmsg+0xbb/0x250
[   58.149090][ T7303]  sock_recvmsg+0x92/0xb0
[   58.153412][ T7303]  sock_read_iter+0x15f/0x1e0
[   58.158125][ T7303]  new_sync_read+0x389/0x4f0
[   58.162698][ T7303] 
[   58.165017][ T7303] Reported by Kernel Concurrency Sanitizer on:
[   58.171164][ T7303] CPU: 1 PID: 7303 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   58.178265][ T7303] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   58.188313][ T7303] ==================================================================
[   58.196410][ T7303] Kernel panic - not syncing: panic_on_warn set ...
[   58.202995][ T7303] CPU: 1 PID: 7303 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   58.210092][ T7303] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   58.220345][ T7303] Call Trace:
[   58.223640][ T7303]  dump_stack+0xf5/0x159
[   58.227931][ T7303]  panic+0x209/0x639
[   58.231911][ T7303]  ? tcp_recvmsg+0xf59/0x1a30
[   58.236584][ T7303]  ? vprintk_func+0x8d/0x140
[   58.241177][ T7303]  kcsan_report.cold+0xc/0x1b
[   58.245995][ T7303]  __kcsan_setup_watchpoint+0x3ee/0x510
[   58.252012][ T7303]  __tsan_write8+0x32/0x40
[   58.256431][ T7303]  free_one_page+0x214/0x840
[   58.261046][ T7303]  __free_pages_ok+0x370/0x640
[   58.265868][ T7303]  free_compound_page+0x3d/0x50
[   58.270722][ T7303]  __put_compound_page+0x4e/0x70
[   58.275793][ T7303]  __put_page+0x54/0xd0
[   58.279948][ T7303]  skb_release_data+0x1ba/0x3a0
[   58.285441][ T7303]  skb_release_all+0x44/0x60
[   58.290026][ T7303]  __kfree_skb+0x1f/0x30
[   58.294460][ T7303]  tcp_recvmsg+0xf59/0x1a30
[   58.299070][ T7303]  inet_recvmsg+0xbb/0x250
[   58.303542][ T7303]  ? __tsan_read8+0x2c/0x30
[   58.308084][ T7303]  ? inet_sendpage+0x100/0x100
[   58.312850][ T7303]  sock_recvmsg+0x92/0xb0
[   58.317205][ T7303]  sock_read_iter+0x15f/0x1e0
[   58.322029][ T7303]  new_sync_read+0x389/0x4f0
[   58.326623][ T7303]  __vfs_read+0xb1/0xc0
[   58.330826][ T7303]  vfs_read+0x143/0x2c0
[   58.334984][ T7303]  ksys_read+0xd5/0x1b0
[   58.339163][ T7303]  __x64_sys_read+0x4c/0x60
[   58.343686][ T7303]  do_syscall_64+0xcf/0x2f0
[   58.348336][ T7303]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   58.354313][ T7303] RIP: 0033:0x47c530
[   58.358257][ T7303] 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
[   58.377948][ T7303] RSP: 002b:000000c4203bd810 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
[   58.386403][ T7303] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   58.394535][ T7303] RDX: 0000000000001000 RSI: 000000c4200a8000 RDI: 0000000000000003
[   58.402501][ T7303] RBP: 000000c4203bd868 R08: 0000000000000000 R09: 0000000000000000
[   58.410642][ T7303] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000200
[   58.418830][ T7303] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff
[   59.558186][ T7303] Shutting down cpus with NMI
[   59.564543][ T7303] Kernel Offset: disabled
[   59.568878][ T7303] Rebooting in 86400 seconds..