Warning: Permanently added '10.128.1.4' (ECDSA) to the list of known hosts.
2019/10/08 05:51:24 fuzzer started
2019/10/08 05:51:24 dialing manager at 10.128.0.105:39369
2019/10/08 05:51:24 syscalls: 2523
2019/10/08 05:51:24 code coverage: enabled
2019/10/08 05:51:24 comparison tracing: enabled
2019/10/08 05:51:24 extra coverage: extra coverage is not supported by the kernel
2019/10/08 05:51:24 setuid sandbox: enabled
2019/10/08 05:51:24 namespace sandbox: enabled
2019/10/08 05:51:24 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/08 05:51:24 fault injection: enabled
2019/10/08 05:51:24 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/08 05:51:24 net packet injection: enabled
2019/10/08 05:51:24 net device setup: enabled
2019/10/08 05:51:24 concurrency sanitizer: enabled
syzkaller login: [   47.388521][ T7219] ==================================================================
[   47.396724][ T7219] BUG: KCSAN: data-race in free_one_page / prep_compound_page
[   47.404420][ T7219] 
[   47.406736][ T7219] write to 0xffffea0004862c00 of 8 bytes by interrupt on cpu 0:
[   47.414361][ T7219]  prep_compound_page+0x66/0x160
[   47.419371][ T7219]  prep_new_page+0xfe/0x200
[   47.423858][ T7219]  get_page_from_freelist+0x1e9b/0x2300
[   47.429388][ T7219]  __alloc_pages_nodemask+0x255/0x4d0
[   47.434745][ T7219]  page_frag_alloc+0x11e/0x2d0
[   47.442994][ T7219]  __napi_alloc_skb+0x172/0x210
[   47.447828][ T7219]  page_to_skb+0x8d/0x480
[   47.452140][ T7219]  receive_buf+0x17c7/0x30b0
[   47.456716][ T7219]  virtnet_poll+0x436/0x7d0
[   47.461200][ T7219]  net_rx_action+0x3ae/0xa50
[   47.465790][ T7219]  __do_softirq+0x115/0x33f
[   47.470279][ T7219]  run_ksoftirqd+0x46/0x60
[   47.474701][ T7219]  smpboot_thread_fn+0x37d/0x4a0
[   47.479619][ T7219]  kthread+0x1d4/0x200
[   47.483673][ T7219]  ret_from_fork+0x1f/0x30
[   47.488073][ T7219] 
[   47.490401][ T7219] read to 0xffffea0004862c00 of 8 bytes by task 7219 on cpu 1:
[   47.497929][ T7219]  free_one_page+0x3cb/0x840
[   47.503566][ T7219]  __free_pages_ok+0x370/0x640
[   47.508320][ T7219]  page_frag_free+0xd0/0x100
[   47.512897][ T7219]  skb_free_head+0x55/0x80
[   47.517300][ T7219]  skb_release_data+0x25d/0x3a0
[   47.522139][ T7219]  skb_release_all+0x44/0x60
[   47.526714][ T7219]  __kfree_skb+0x1f/0x30
[   47.530939][ T7219]  tcp_recvmsg+0xf59/0x1a30
[   47.535428][ T7219]  inet_recvmsg+0xbb/0x250
[   47.539825][ T7219]  sock_recvmsg+0x92/0xb0
[   47.544135][ T7219]  sock_read_iter+0x15f/0x1e0
[   47.548797][ T7219]  new_sync_read+0x389/0x4f0
[   47.553371][ T7219]  __vfs_read+0xb1/0xc0
[   47.557504][ T7219] 
[   47.559812][ T7219] Reported by Kernel Concurrency Sanitizer on:
[   47.565951][ T7219] CPU: 1 PID: 7219 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   47.573038][ T7219] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   47.583095][ T7219] ==================================================================
[   47.591140][ T7219] Kernel panic - not syncing: panic_on_warn set ...
[   47.597930][ T7219] CPU: 1 PID: 7219 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   47.605016][ T7219] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   47.615062][ T7219] Call Trace:
[   47.618343][ T7219]  dump_stack+0xf5/0x159
[   47.622575][ T7219]  panic+0x209/0x639
[   47.626456][ T7219]  ? vprintk_func+0x8d/0x140
[   47.631046][ T7219]  kcsan_report.cold+0x57/0xeb
[   47.635798][ T7219]  __kcsan_setup_watchpoint+0x342/0x500
[   47.641329][ T7219]  __tsan_read8+0x2c/0x30
[   47.645646][ T7219]  free_one_page+0x3cb/0x840
[   47.650238][ T7219]  __free_pages_ok+0x370/0x640
[   47.654990][ T7219]  page_frag_free+0xd0/0x100
[   47.659563][ T7219]  skb_free_head+0x55/0x80
[   47.663969][ T7219]  skb_release_data+0x25d/0x3a0
[   47.668809][ T7219]  skb_release_all+0x44/0x60
[   47.673385][ T7219]  __kfree_skb+0x1f/0x30
[   47.677611][ T7219]  tcp_recvmsg+0xf59/0x1a30
[   47.682111][ T7219]  inet_recvmsg+0xbb/0x250
[   47.686516][ T7219]  ? __tsan_read8+0x2c/0x30
[   47.691005][ T7219]  ? inet_sendpage+0x100/0x100
[   47.695753][ T7219]  sock_recvmsg+0x92/0xb0
[   47.700115][ T7219]  sock_read_iter+0x15f/0x1e0
[   47.704788][ T7219]  new_sync_read+0x389/0x4f0
[   47.709373][ T7219]  __vfs_read+0xb1/0xc0
[   47.713514][ T7219]  vfs_read+0x143/0x2c0
[   47.717660][ T7219]  ksys_read+0xd5/0x1b0
[   47.721806][ T7219]  __x64_sys_read+0x4c/0x60
[   47.726295][ T7219]  do_syscall_64+0xcf/0x2f0
[   47.730791][ T7219]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   47.736685][ T7219] RIP: 0033:0x47c530
[   47.740569][ T7219] 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
[   47.760504][ T7219] RSP: 002b:000000c4203d7810 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
[   47.768901][ T7219] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   47.776874][ T7219] RDX: 0000000000001000 RSI: 000000c4202c2000 RDI: 0000000000000003
[   47.784829][ T7219] RBP: 000000c4203d7868 R08: 0000000000000000 R09: 0000000000000000
[   47.792795][ T7219] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000010
[   47.802228][ T7219] R13: ffffffffffffffff R14: 0000000000000004 R15: ffffffffffffffff
[   48.940012][ T7219] Shutting down cpus with NMI
[   48.946088][ T7219] Kernel Offset: disabled
[   48.950422][ T7219] Rebooting in 86400 seconds..