Warning: Permanently added '10.128.0.161' (ECDSA) to the list of known hosts.
2019/10/14 16:51:05 fuzzer started
2019/10/14 16:51:07 dialing manager at 10.128.0.105:43961
2019/10/14 16:51:07 syscalls: 2523
2019/10/14 16:51:07 code coverage: enabled
2019/10/14 16:51:07 comparison tracing: enabled
2019/10/14 16:51:07 extra coverage: extra coverage is not supported by the kernel
2019/10/14 16:51:07 setuid sandbox: enabled
2019/10/14 16:51:07 namespace sandbox: enabled
2019/10/14 16:51:07 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/14 16:51:07 fault injection: enabled
2019/10/14 16:51:07 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/14 16:51:07 net packet injection: enabled
2019/10/14 16:51:07 net device setup: enabled
2019/10/14 16:51:07 concurrency sanitizer: enabled
syzkaller login: [   52.117559][ T7248] ==================================================================
[   52.125711][ T7248] BUG: KCSAN: data-race in __zone_watermark_ok / free_one_page
[   52.140095][ T7248] 
[   52.143737][ T7248] read to 0xffff88812fffcf58 of 8 bytes by interrupt on cpu 1:
[   52.152306][ T7248]  __zone_watermark_ok+0x106/0x240
[   52.159771][ T7248]  get_page_from_freelist+0x629/0x2300
[   52.169219][ T7248]  __alloc_pages_nodemask+0x255/0x4d0
[   52.176002][ T7248]  alloc_pages_current+0xd1/0x170
[   52.181171][ T7248]  skb_page_frag_refill+0x16f/0x260
[   52.189115][ T7248]  try_fill_recv+0x51f/0xdc0
[   52.195545][ T7248]  virtnet_poll+0x64c/0x7d0
[   52.200269][ T7248]  net_rx_action+0x3ae/0xa50
[   52.205564][ T7248]  __do_softirq+0x115/0x33f
[   52.210192][ T7248]  run_ksoftirqd+0x46/0x60
[   52.214691][ T7248]  smpboot_thread_fn+0x37d/0x4a0
[   52.219727][ T7248]  kthread+0x1d4/0x200
[   52.226647][ T7248]  ret_from_fork+0x1f/0x30
[   52.232127][ T7248] 
[   52.235344][ T7248] write to 0xffff88812fffcf58 of 8 bytes by task 7248 on cpu 0:
[   52.248459][ T7248]  free_one_page+0x214/0x840
[   52.253673][ T7248]  __free_pages_ok+0x370/0x640
[   52.261517][ T7248]  free_compound_page+0x3d/0x50
[   52.272375][ T7248]  __put_compound_page+0x4e/0x70
[   52.277382][ T7248]  __put_page+0x54/0xd0
[   52.282078][ T7248]  skb_release_data+0x1ba/0x3a0
[   52.289269][ T7248]  skb_release_all+0x44/0x60
[   52.294112][ T7248]  __kfree_skb+0x1f/0x30
[   52.298338][ T7248]  tcp_recvmsg+0xf59/0x1a30
[   52.305267][ T7248]  inet_recvmsg+0xbb/0x250
[   52.310116][ T7248]  sock_recvmsg+0x92/0xb0
[   52.314453][ T7248]  sock_read_iter+0x15f/0x1e0
[   52.320158][ T7248]  new_sync_read+0x389/0x4f0
[   52.325097][ T7248] 
[   52.327418][ T7248] Reported by Kernel Concurrency Sanitizer on:
[   52.334263][ T7248] CPU: 0 PID: 7248 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   52.341445][ T7248] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   52.351699][ T7248] ==================================================================
[   52.360617][ T7248] Kernel panic - not syncing: panic_on_warn set ...
[   52.370492][ T7248] CPU: 0 PID: 7248 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   52.379670][ T7248] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   52.389708][ T7248] Call Trace:
[   52.392991][ T7248]  dump_stack+0xf5/0x159
[   52.397224][ T7248]  panic+0x209/0x639
[   52.401103][ T7248]  ? tcp_recvmsg+0xf59/0x1a30
[   52.405765][ T7248]  ? vprintk_func+0x8d/0x140
[   52.410341][ T7248]  kcsan_report.cold+0xc/0x1b
[   52.415003][ T7248]  __kcsan_setup_watchpoint+0x3ee/0x510
[   52.420535][ T7248]  __tsan_write8+0x32/0x40
[   52.424949][ T7248]  free_one_page+0x214/0x840
[   52.429531][ T7248]  __free_pages_ok+0x370/0x640
[   52.434284][ T7248]  free_compound_page+0x3d/0x50
[   52.439117][ T7248]  __put_compound_page+0x4e/0x70
[   52.444035][ T7248]  __put_page+0x54/0xd0
[   52.448178][ T7248]  skb_release_data+0x1ba/0x3a0
[   52.453016][ T7248]  skb_release_all+0x44/0x60
[   52.457589][ T7248]  __kfree_skb+0x1f/0x30
[   52.461814][ T7248]  tcp_recvmsg+0xf59/0x1a30
[   52.466570][ T7248]  ? enqueue_task_fair+0x9e/0x400
[   52.471585][ T7248]  inet_recvmsg+0xbb/0x250
[   52.476317][ T7248]  ? __tsan_read8+0x2c/0x30
[   52.482720][ T7248]  ? inet_sendpage+0x100/0x100
[   52.487477][ T7248]  sock_recvmsg+0x92/0xb0
[   52.491799][ T7248]  sock_read_iter+0x15f/0x1e0
[   52.496574][ T7248]  new_sync_read+0x389/0x4f0
[   52.501505][ T7248]  __vfs_read+0xb1/0xc0
[   52.505647][ T7248]  vfs_read+0x143/0x2c0
[   52.509792][ T7248]  ksys_read+0xd5/0x1b0
[   52.513935][ T7248]  __x64_sys_read+0x4c/0x60
[   52.518427][ T7248]  do_syscall_64+0xcf/0x2f0
[   52.522928][ T7248]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   52.528799][ T7248] RIP: 0033:0x47c530
[   52.533565][ T7248] 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
[   52.553611][ T7248] RSP: 002b:000000c42033b810 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
[   52.562102][ T7248] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   52.570156][ T7248] RDX: 0000000000001000 RSI: 000000c4202c0000 RDI: 0000000000000003
[   52.578119][ T7248] RBP: 000000c42033b868 R08: 0000000000000000 R09: 0000000000000000
[   52.586076][ T7248] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[   52.594117][ T7248] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff
[   53.729044][ T7248] Shutting down cpus with NMI
[   53.734912][ T7248] Kernel Offset: disabled
[   53.739227][ T7248] Rebooting in 86400 seconds..