Warning: Permanently added '10.128.0.59' (ECDSA) to the list of known hosts.
2019/10/13 17:06:27 fuzzer started
2019/10/13 17:06:29 dialing manager at 10.128.0.105:40973
2019/10/13 17:06:29 syscalls: 2523
2019/10/13 17:06:29 code coverage: enabled
2019/10/13 17:06:29 comparison tracing: enabled
2019/10/13 17:06:29 extra coverage: extra coverage is not supported by the kernel
2019/10/13 17:06:29 setuid sandbox: enabled
2019/10/13 17:06:29 namespace sandbox: enabled
2019/10/13 17:06:29 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/13 17:06:29 fault injection: enabled
2019/10/13 17:06:29 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/13 17:06:29 net packet injection: enabled
2019/10/13 17:06:29 net device setup: enabled
2019/10/13 17:06:29 concurrency sanitizer: enabled
syzkaller login: [   48.864827][ T7178] ==================================================================
[   48.872950][ T7178] BUG: KCSAN: data-race in __zone_watermark_ok / free_one_page
[   48.880475][ T7178] 
[   48.882803][ T7178] read to 0xffff88812fffcf58 of 8 bytes by interrupt on cpu 0:
[   48.890337][ T7178]  __zone_watermark_ok+0x106/0x240
[   48.895442][ T7178]  get_page_from_freelist+0x629/0x2300
[   48.901071][ T7178]  __alloc_pages_nodemask+0x255/0x4d0
[   48.906438][ T7178]  alloc_pages_current+0xd1/0x170
[   48.911510][ T7178]  skb_page_frag_refill+0x16f/0x260
[   48.916749][ T7178]  try_fill_recv+0x51f/0xdc0
[   48.921362][ T7178]  virtnet_poll+0x64c/0x7d0
[   48.925852][ T7178]  net_rx_action+0x3ae/0xa50
[   48.930431][ T7178]  __do_softirq+0x115/0x33f
[   48.934926][ T7178]  run_ksoftirqd+0x46/0x60
[   48.939443][ T7178]  smpboot_thread_fn+0x37d/0x4a0
[   48.944370][ T7178]  kthread+0x1d4/0x200
[   48.948532][ T7178]  ret_from_fork+0x1f/0x30
[   48.952930][ T7178] 
[   48.955254][ T7178] write to 0xffff88812fffcf58 of 8 bytes by task 7178 on cpu 1:
[   48.962876][ T7178]  free_one_page+0x214/0x840
[   48.967501][ T7178]  __free_pages_ok+0x370/0x640
[   48.972258][ T7178]  free_compound_page+0x3d/0x50
[   48.977099][ T7178]  __put_compound_page+0x4e/0x70
[   48.982029][ T7178]  __put_page+0x54/0xd0
[   48.986175][ T7178]  skb_release_data+0x1ba/0x3a0
[   48.991145][ T7178]  skb_release_all+0x44/0x60
[   48.995815][ T7178]  __kfree_skb+0x1f/0x30
[   49.000098][ T7178]  tcp_recvmsg+0xf59/0x1a30
[   49.004597][ T7178]  inet_recvmsg+0xbb/0x250
[   49.008999][ T7178]  sock_recvmsg+0x92/0xb0
[   49.013322][ T7178]  sock_read_iter+0x15f/0x1e0
[   49.018039][ T7178]  new_sync_read+0x389/0x4f0
[   49.022613][ T7178] 
[   49.024925][ T7178] Reported by Kernel Concurrency Sanitizer on:
[   49.031071][ T7178] CPU: 1 PID: 7178 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   49.038271][ T7178] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   49.048324][ T7178] ==================================================================
[   49.056374][ T7178] Kernel panic - not syncing: panic_on_warn set ...
[   49.062955][ T7178] CPU: 1 PID: 7178 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   49.070049][ T7178] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   49.080182][ T7178] Call Trace:
[   49.083471][ T7178]  dump_stack+0xf5/0x159
[   49.087710][ T7178]  panic+0x209/0x639
[   49.091662][ T7178]  ? tcp_recvmsg+0xf59/0x1a30
[   49.096374][ T7178]  ? vprintk_func+0x8d/0x140
[   49.101001][ T7178]  kcsan_report.cold+0xc/0x1b
[   49.105673][ T7178]  __kcsan_setup_watchpoint+0x3ee/0x510
[   49.111216][ T7178]  __tsan_write8+0x32/0x40
[   49.115685][ T7178]  free_one_page+0x214/0x840
[   49.120368][ T7178]  __free_pages_ok+0x370/0x640
[   49.125197][ T7178]  free_compound_page+0x3d/0x50
[   49.130078][ T7178]  __put_compound_page+0x4e/0x70
[   49.135099][ T7178]  __put_page+0x54/0xd0
[   49.139338][ T7178]  skb_release_data+0x1ba/0x3a0
[   49.144236][ T7178]  skb_release_all+0x44/0x60
[   49.148826][ T7178]  __kfree_skb+0x1f/0x30
[   49.153062][ T7178]  tcp_recvmsg+0xf59/0x1a30
[   49.157575][ T7178]  inet_recvmsg+0xbb/0x250
[   49.161984][ T7178]  ? __tsan_read8+0x2c/0x30
[   49.166503][ T7178]  ? inet_sendpage+0x100/0x100
[   49.171356][ T7178]  sock_recvmsg+0x92/0xb0
[   49.175700][ T7178]  sock_read_iter+0x15f/0x1e0
[   49.180380][ T7178]  new_sync_read+0x389/0x4f0
[   49.185172][ T7178]  __vfs_read+0xb1/0xc0
[   49.189328][ T7178]  vfs_read+0x143/0x2c0
[   49.193484][ T7178]  ksys_read+0xd5/0x1b0
[   49.197654][ T7178]  __x64_sys_read+0x4c/0x60
[   49.202158][ T7178]  do_syscall_64+0xcf/0x2f0
[   49.206704][ T7178]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   49.212597][ T7178] RIP: 0033:0x47c530
[   49.216495][ T7178] 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
[   49.236177][ T7178] RSP: 002b:000000c4203937d8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000
[   49.244583][ T7178] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   49.252545][ T7178] RDX: 0000000000001000 RSI: 000000c420134000 RDI: 0000000000000003
[   49.260509][ T7178] RBP: 000000c420393830 R08: 0000000000000000 R09: 0000000000000000
[   49.268469][ T7178] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000008
[   49.276434][ T7178] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff
[   50.413532][ T7178] Shutting down cpus with NMI
[   50.419502][ T7178] Kernel Offset: disabled
[   50.423854][ T7178] Rebooting in 86400 seconds..