Warning: Permanently added '10.128.1.28' (ECDSA) to the list of known hosts.
2019/10/14 10:29:08 fuzzer started
2019/10/14 10:29:10 dialing manager at 10.128.0.105:43961
2019/10/14 10:29:10 syscalls: 2523
2019/10/14 10:29:10 code coverage: enabled
2019/10/14 10:29:10 comparison tracing: enabled
2019/10/14 10:29:10 extra coverage: extra coverage is not supported by the kernel
2019/10/14 10:29:10 setuid sandbox: enabled
2019/10/14 10:29:10 namespace sandbox: enabled
2019/10/14 10:29:10 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/14 10:29:10 fault injection: enabled
2019/10/14 10:29:10 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/14 10:29:10 net packet injection: enabled
2019/10/14 10:29:10 net device setup: enabled
2019/10/14 10:29:10 concurrency sanitizer: enabled
syzkaller login: [   55.630286][ T7299] ==================================================================
[   55.638402][ T7299] BUG: KCSAN: data-race in __zone_watermark_ok / free_one_page
[   55.645919][ T7299] 
[   55.648244][ T7299] read to 0xffff88812fffcf58 of 8 bytes by interrupt on cpu 0:
[   55.655772][ T7299]  __zone_watermark_ok+0x106/0x240
[   55.660868][ T7299]  get_page_from_freelist+0x629/0x2300
[   55.666323][ T7299]  __alloc_pages_nodemask+0x255/0x4d0
[   55.671677][ T7299]  alloc_pages_current+0xd1/0x170
[   55.676692][ T7299]  skb_page_frag_refill+0x16f/0x260
[   55.681874][ T7299]  try_fill_recv+0x51f/0xdc0
[   55.686450][ T7299]  virtnet_poll+0x64c/0x7d0
[   55.690943][ T7299]  net_rx_action+0x3ae/0xa50
[   55.695517][ T7299]  __do_softirq+0x115/0x33f
[   55.700003][ T7299]  run_ksoftirqd+0x46/0x60
[   55.704402][ T7299]  smpboot_thread_fn+0x37d/0x4a0
[   55.709331][ T7299]  kthread+0x1d4/0x200
[   55.713384][ T7299]  ret_from_fork+0x1f/0x30
[   55.717789][ T7299] 
[   55.720107][ T7299] write to 0xffff88812fffcf58 of 8 bytes by task 7299 on cpu 1:
[   55.727722][ T7299]  free_one_page+0x214/0x840
[   55.732296][ T7299]  __free_pages_ok+0x370/0x640
[   55.737045][ T7299]  free_compound_page+0x3d/0x50
[   55.742056][ T7299]  __put_compound_page+0x4e/0x70
[   55.746973][ T7299]  __put_page+0x54/0xd0
[   55.751129][ T7299]  skb_release_data+0x1ba/0x3a0
[   55.755974][ T7299]  skb_release_all+0x44/0x60
[   55.760558][ T7299]  __kfree_skb+0x1f/0x30
[   55.764785][ T7299]  tcp_recvmsg+0xf59/0x1a30
[   55.769274][ T7299]  inet_recvmsg+0xbb/0x250
[   55.773681][ T7299]  sock_recvmsg+0x92/0xb0
[   55.778003][ T7299]  sock_read_iter+0x15f/0x1e0
[   55.782674][ T7299]  new_sync_read+0x389/0x4f0
[   55.787239][ T7299] 
[   55.789554][ T7299] Reported by Kernel Concurrency Sanitizer on:
[   55.795703][ T7299] CPU: 1 PID: 7299 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   55.802789][ T7299] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   55.812835][ T7299] ==================================================================
[   55.820878][ T7299] Kernel panic - not syncing: panic_on_warn set ...
[   55.827460][ T7299] CPU: 1 PID: 7299 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   55.834554][ T7299] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   55.844590][ T7299] Call Trace:
[   55.847885][ T7299]  dump_stack+0xf5/0x159
[   55.852120][ T7299]  panic+0x209/0x639
[   55.856001][ T7299]  ? tcp_recvmsg+0xf59/0x1a30
[   55.860664][ T7299]  ? vprintk_func+0x8d/0x140
[   55.865241][ T7299]  kcsan_report.cold+0xc/0x1b
[   55.869918][ T7299]  __kcsan_setup_watchpoint+0x3ee/0x510
[   55.875455][ T7299]  __tsan_write8+0x32/0x40
[   55.879863][ T7299]  free_one_page+0x214/0x840
[   55.884459][ T7299]  __free_pages_ok+0x370/0x640
[   55.889223][ T7299]  free_compound_page+0x3d/0x50
[   55.894060][ T7299]  __put_compound_page+0x4e/0x70
[   55.898984][ T7299]  __put_page+0x54/0xd0
[   55.903132][ T7299]  skb_release_data+0x1ba/0x3a0
[   55.907983][ T7299]  skb_release_all+0x44/0x60
[   55.912557][ T7299]  __kfree_skb+0x1f/0x30
[   55.916784][ T7299]  tcp_recvmsg+0xf59/0x1a30
[   55.921286][ T7299]  ? debug_smp_processor_id+0x4c/0x172
[   55.926744][ T7299]  inet_recvmsg+0xbb/0x250
[   55.931154][ T7299]  ? __tsan_read8+0x2c/0x30
[   55.935731][ T7299]  ? inet_sendpage+0x100/0x100
[   55.940570][ T7299]  sock_recvmsg+0x92/0xb0
[   55.944896][ T7299]  sock_read_iter+0x15f/0x1e0
[   55.949575][ T7299]  new_sync_read+0x389/0x4f0
[   55.954161][ T7299]  __vfs_read+0xb1/0xc0
[   55.958305][ T7299]  vfs_read+0x143/0x2c0
[   55.962449][ T7299]  ksys_read+0xd5/0x1b0
[   55.966611][ T7299]  __x64_sys_read+0x4c/0x60
[   55.971105][ T7299]  do_syscall_64+0xcf/0x2f0
[   55.975606][ T7299]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   55.981496][ T7299] RIP: 0033:0x47c530
[   55.985380][ T7299] 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
[   56.004984][ T7299] RSP: 002b:000000c4204e9810 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
[   56.013377][ T7299] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   56.021337][ T7299] RDX: 0000000000001000 RSI: 000000c4201a6000 RDI: 0000000000000003
[   56.029292][ T7299] RBP: 000000c4204e9868 R08: 0000000000000000 R09: 0000000000000000
[   56.037257][ T7299] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[   56.045215][ T7299] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff
[   57.180990][ T7299] Shutting down cpus with NMI
[   57.186979][ T7299] Kernel Offset: disabled
[   57.191342][ T7299] Rebooting in 86400 seconds..