Warning: Permanently added '10.128.0.109' (ECDSA) to the list of known hosts.
2019/10/07 14:39:02 fuzzer started
2019/10/07 14:39:03 dialing manager at 10.128.0.105:39369
2019/10/07 14:39:03 syscalls: 2523
2019/10/07 14:39:03 code coverage: enabled
2019/10/07 14:39:03 comparison tracing: enabled
2019/10/07 14:39:03 extra coverage: extra coverage is not supported by the kernel
2019/10/07 14:39:03 setuid sandbox: enabled
2019/10/07 14:39:03 namespace sandbox: enabled
2019/10/07 14:39:03 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/07 14:39:03 fault injection: enabled
2019/10/07 14:39:03 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/07 14:39:03 net packet injection: enabled
2019/10/07 14:39:03 net device setup: enabled
2019/10/07 14:39:03 concurrency sanitizer: enabled
syzkaller login: [   47.127678][ T7329] ==================================================================
[   47.136889][ T7329] BUG: KCSAN: data-race in free_one_page / prep_compound_page
[   47.146717][ T7329] 
[   47.149235][ T7329] write to 0xffffea000488cc00 of 8 bytes by interrupt on cpu 0:
[   47.158586][ T7329]  prep_compound_page+0x66/0x160
[   47.163700][ T7329]  prep_new_page+0xfe/0x200
[   47.168387][ T7329]  get_page_from_freelist+0x1e9b/0x2300
[   47.175327][ T7329]  __alloc_pages_nodemask+0x255/0x4d0
[   47.181062][ T7329]  alloc_pages_current+0xd1/0x170
[   47.186796][ T7329]  skb_page_frag_refill+0x16f/0x260
[   47.192015][ T7329]  try_fill_recv+0x51f/0xdc0
[   47.196878][ T7329]  virtnet_poll+0x64c/0x7d0
[   47.202190][ T7329]  net_rx_action+0x3ae/0xa50
[   47.208762][ T7329]  __do_softirq+0x115/0x33f
[   47.214850][ T7329]  run_ksoftirqd+0x46/0x60
[   47.219269][ T7329]  smpboot_thread_fn+0x37d/0x4a0
[   47.226076][ T7329]  kthread+0x1d4/0x200
[   47.230146][ T7329]  ret_from_fork+0x1f/0x30
[   47.234553][ T7329] 
[   47.236869][ T7329] read to 0xffffea000488cc00 of 8 bytes by task 7329 on cpu 1:
[   47.244398][ T7329]  free_one_page+0x3cb/0x840
[   47.248982][ T7329]  __free_pages_ok+0x370/0x640
[   47.253745][ T7329]  free_compound_page+0x3d/0x50
[   47.258693][ T7329]  __put_compound_page+0x4e/0x70
[   47.264781][ T7329]  __put_page+0x54/0xd0
[   47.269025][ T7329]  skb_release_data+0x1ba/0x3a0
[   47.273975][ T7329]  skb_release_all+0x44/0x60
[   47.278562][ T7329]  __kfree_skb+0x1f/0x30
[   47.283001][ T7329]  tcp_recvmsg+0xf59/0x1a30
[   47.287710][ T7329]  inet_recvmsg+0xbb/0x250
[   47.292140][ T7329]  sock_recvmsg+0x92/0xb0
[   47.296461][ T7329]  sock_read_iter+0x15f/0x1e0
[   47.301239][ T7329]  new_sync_read+0x389/0x4f0
[   47.305824][ T7329] 
[   47.308143][ T7329] Reported by Kernel Concurrency Sanitizer on:
[   47.314744][ T7329] CPU: 1 PID: 7329 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   47.321850][ T7329] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   47.331903][ T7329] ==================================================================
[   47.340066][ T7329] Kernel panic - not syncing: panic_on_warn set ...
[   47.346672][ T7329] CPU: 1 PID: 7329 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   47.353782][ T7329] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   47.364203][ T7329] Call Trace:
[   47.367516][ T7329]  dump_stack+0xf5/0x159
[   47.371869][ T7329]  panic+0x209/0x639
[   47.376076][ T7329]  ? vprintk_func+0x8d/0x140
[   47.380658][ T7329]  kcsan_report.cold+0x57/0xeb
[   47.385419][ T7329]  __kcsan_setup_watchpoint+0x342/0x500
[   47.390956][ T7329]  __tsan_read8+0x2c/0x30
[   47.395273][ T7329]  free_one_page+0x3cb/0x840
[   47.399859][ T7329]  __free_pages_ok+0x370/0x640
[   47.404636][ T7329]  free_compound_page+0x3d/0x50
[   47.409495][ T7329]  __put_compound_page+0x4e/0x70
[   47.415385][ T7329]  __put_page+0x54/0xd0
[   47.419534][ T7329]  skb_release_data+0x1ba/0x3a0
[   47.424391][ T7329]  skb_release_all+0x44/0x60
[   47.429011][ T7329]  __kfree_skb+0x1f/0x30
[   47.433439][ T7329]  tcp_recvmsg+0xf59/0x1a30
[   47.437985][ T7329]  inet_recvmsg+0xbb/0x250
[   47.442400][ T7329]  ? __tsan_read8+0x2c/0x30
[   47.446933][ T7329]  ? inet_sendpage+0x100/0x100
[   47.451714][ T7329]  sock_recvmsg+0x92/0xb0
[   47.456048][ T7329]  sock_read_iter+0x15f/0x1e0
[   47.460738][ T7329]  new_sync_read+0x389/0x4f0
[   47.465331][ T7329]  __vfs_read+0xb1/0xc0
[   47.469491][ T7329]  vfs_read+0x143/0x2c0
[   47.473673][ T7329]  ksys_read+0xd5/0x1b0
[   47.477921][ T7329]  __x64_sys_read+0x4c/0x60
[   47.482445][ T7329]  do_syscall_64+0xcf/0x2f0
[   47.486963][ T7329]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   47.492856][ T7329] RIP: 0033:0x47c530
[   47.496752][ T7329] 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
[   47.516456][ T7329] RSP: 002b:000000c420343810 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
[   47.524871][ T7329] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   47.532836][ T7329] RDX: 0000000000001000 RSI: 000000c420192000 RDI: 0000000000000003
[   47.541846][ T7329] RBP: 000000c420343868 R08: 0000000000000000 R09: 0000000000000000
[   47.549900][ T7329] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000010
[   47.557886][ T7329] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff
[   48.703417][ T7329] Shutting down cpus with NMI
[   48.710165][ T7329] Kernel Offset: disabled
[   48.714597][ T7329] Rebooting in 86400 seconds..