Warning: Permanently added '10.128.0.28' (ECDSA) to the list of known hosts.
2019/10/14 09:10:02 fuzzer started
2019/10/14 09:10:04 dialing manager at 10.128.0.105:40973
2019/10/14 09:10:04 syscalls: 2523
2019/10/14 09:10:04 code coverage: enabled
2019/10/14 09:10:04 comparison tracing: enabled
2019/10/14 09:10:04 extra coverage: extra coverage is not supported by the kernel
2019/10/14 09:10:04 setuid sandbox: enabled
2019/10/14 09:10:04 namespace sandbox: enabled
2019/10/14 09:10:04 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/14 09:10:04 fault injection: enabled
2019/10/14 09:10:04 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/14 09:10:04 net packet injection: enabled
2019/10/14 09:10:04 net device setup: enabled
2019/10/14 09:10:04 concurrency sanitizer: enabled
syzkaller login: [   51.937703][ T7290] ==================================================================
[   51.946904][ T7290] BUG: KCSAN: data-race in __zone_watermark_ok / free_one_page
[   51.956523][ T7290] 
[   51.959759][ T7290] read to 0xffff88812fffcf58 of 8 bytes by interrupt on cpu 1:
[   51.968450][ T7290]  __zone_watermark_ok+0x106/0x240
[   51.974204][ T7290]  get_page_from_freelist+0x629/0x2300
[   51.980511][ T7290]  __alloc_pages_nodemask+0x255/0x4d0
[   51.986361][ T7290]  alloc_pages_current+0xd1/0x170
[   51.991685][ T7290]  skb_page_frag_refill+0x16f/0x260
[   51.997671][ T7290]  try_fill_recv+0x51f/0xdc0
[   52.002479][ T7290]  virtnet_poll+0x64c/0x7d0
[   52.007837][ T7290]  net_rx_action+0x3ae/0xa50
[   52.014214][ T7290]  __do_softirq+0x115/0x33f
[   52.018729][ T7290]  irq_exit+0xbb/0xe0
[   52.023307][ T7290]  do_IRQ+0xdf/0x150
[   52.028715][ T7290]  ret_from_intr+0x0/0x19
[   52.033566][ T7290]  __kcsan_setup_watchpoint+0x282/0x510
[   52.039478][ T7290]  __tsan_read8+0x2c/0x30
[   52.045090][ T7290] 
[   52.047697][ T7290] write to 0xffff88812fffcf58 of 8 bytes by task 7290 on cpu 0:
[   52.056061][ T7290]  free_one_page+0x214/0x840
[   52.061405][ T7290]  __free_pages_ok+0x370/0x640
[   52.066449][ T7290]  free_compound_page+0x3d/0x50
[   52.071486][ T7290]  __put_compound_page+0x4e/0x70
[   52.077118][ T7290]  __put_page+0x54/0xd0
[   52.081475][ T7290]  skb_release_data+0x1ba/0x3a0
[   52.086978][ T7290]  skb_release_all+0x44/0x60
[   52.092417][ T7290]  __kfree_skb+0x1f/0x30
[   52.097115][ T7290]  tcp_recvmsg+0xf59/0x1a30
[   52.102176][ T7290]  inet_recvmsg+0xbb/0x250
[   52.106708][ T7290]  sock_recvmsg+0x92/0xb0
[   52.111409][ T7290]  sock_read_iter+0x15f/0x1e0
[   52.116443][ T7290]  new_sync_read+0x389/0x4f0
[   52.121639][ T7290] 
[   52.124012][ T7290] Reported by Kernel Concurrency Sanitizer on:
[   52.130910][ T7290] CPU: 0 PID: 7290 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   52.139110][ T7290] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   52.150087][ T7290] ==================================================================
[   52.159088][ T7290] Kernel panic - not syncing: panic_on_warn set ...
[   52.166237][ T7290] CPU: 0 PID: 7290 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   52.175253][ T7290] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   52.186217][ T7290] Call Trace:
[   52.189526][ T7290]  dump_stack+0xf5/0x159
[   52.194100][ T7290]  panic+0x209/0x639
[   52.199071][ T7290]  ? tcp_recvmsg+0xf59/0x1a30
[   52.204869][ T7290]  ? vprintk_func+0x8d/0x140
[   52.210199][ T7290]  kcsan_report.cold+0xc/0x1b
[   52.215596][ T7290]  __kcsan_setup_watchpoint+0x3ee/0x510
[   52.221767][ T7290]  __tsan_write8+0x32/0x40
[   52.226797][ T7290]  free_one_page+0x214/0x840
[   52.231514][ T7290]  __free_pages_ok+0x370/0x640
[   52.236882][ T7290]  free_compound_page+0x3d/0x50
[   52.242143][ T7290]  __put_compound_page+0x4e/0x70
[   52.247713][ T7290]  __put_page+0x54/0xd0
[   52.252421][ T7290]  skb_release_data+0x1ba/0x3a0
[   52.257551][ T7290]  skb_release_all+0x44/0x60
[   52.262665][ T7290]  __kfree_skb+0x1f/0x30
[   52.267964][ T7290]  tcp_recvmsg+0xf59/0x1a30
[   52.273029][ T7290]  inet_recvmsg+0xbb/0x250
[   52.277842][ T7290]  ? __tsan_read8+0x2c/0x30
[   52.284415][ T7290]  ? inet_sendpage+0x100/0x100
[   52.289812][ T7290]  sock_recvmsg+0x92/0xb0
[   52.296208][ T7290]  sock_read_iter+0x15f/0x1e0
[   52.300995][ T7290]  new_sync_read+0x389/0x4f0
[   52.306833][ T7290]  __vfs_read+0xb1/0xc0
[   52.311685][ T7290]  vfs_read+0x143/0x2c0
[   52.316228][ T7290]  ksys_read+0xd5/0x1b0
[   52.321796][ T7290]  __x64_sys_read+0x4c/0x60
[   52.327346][ T7290]  do_syscall_64+0xcf/0x2f0
[   52.332309][ T7290]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   52.339476][ T7290] RIP: 0033:0x47c530
[   52.344261][ T7290] 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
[   52.366354][ T7290] RSP: 002b:000000c420337810 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
[   52.375563][ T7290] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   52.384403][ T7290] RDX: 0000000000001000 RSI: 000000c420052000 RDI: 0000000000000003
[   52.393475][ T7290] RBP: 000000c420337868 R08: 0000000000000000 R09: 0000000000000000
[   52.402287][ T7290] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[   52.411634][ T7290] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff
[   53.563957][ T7290] Shutting down cpus with NMI
[   53.572059][ T7290] Kernel Offset: disabled
[   53.576895][ T7290] Rebooting in 86400 seconds..