hid-generic 0000:0000:0000.0002: unknown main item tag 0x0
hid-generic 0000:0000:0000.0002: unknown main item tag 0x0
hid-generic 0000:0000:0000.0002: hidraw0: <UNKNOWN> HID v0.00 Device [syz1] on syz1
list_del corruption. prev->next should be ffff8881d8b51930, but was ffff8881d50b54b0
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:53!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 6296 Comm: kworker/1:3 Not tainted 4.20.0-rc6-next-20181210+ #164
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_power_efficient neigh_periodic_work
RIP: 0010:__list_del_entry_valid.cold.1+0x48/0x4a lib/list_debug.c:51
kobject: 'kvm' (00000000de39455b): kobject_uevent_env
Code: e4 80 88 e8 22 1f d2 fd 0f 0b 48 89 de 48 c7 c7 c0 e5 80 88 e8 11 1f d2 fd 0f 0b 48 89 de 48 c7 c7 60 e5 80 88 e8 00 1f d2 fd <0f> 0b 48 89 d9 48 c7 c7 20 e6 80 88 e8 ef 1e d2 fd 0f 0b 48 89 f1
RSP: 0018:ffff8881974c7440 EFLAGS: 00010282
RAX: 0000000000000054 RBX: ffff8881d8b51930 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff816621c5 RDI: 0000000000000005
kobject: 'kvm' (00000000de39455b): fill_kobj_path: path = '/devices/virtual/misc/kvm'
RBP: ffff8881974c7458 R08: ffff8881974b42c0 R09: ffffed103b5a5020
R10: ffffed103b5a5020 R11: ffff8881dad28107 R12: ffff8881d507d470
R13: ffffffff8a1dca60 R14: ffff8881974c7560 R15: 1ffff11032e98e94
FS:  0000000000000000(0000) GS:ffff8881dad00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000000966e000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __list_del_entry include/linux/list.h:117 [inline]
 list_del_init include/linux/list.h:159 [inline]
 neigh_mark_dead+0x13b/0x410 net/core/neighbour.c:125
 neigh_periodic_work+0x89a/0xc30 net/core/neighbour.c:905
 process_one_work+0xc90/0x1c40 kernel/workqueue.c:2153
 worker_thread+0x17f/0x1390 kernel/workqueue.c:2296
 kthread+0x35a/0x440 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Modules linked in:
---[ end trace e4cccb0680286bff ]---
RIP: 0010:__list_del_entry_valid.cold.1+0x48/0x4a lib/list_debug.c:51
Code: e4 80 88 e8 22 1f d2 fd 0f 0b 48 89 de 48 c7 c7 c0 e5 80 88 e8 11 1f d2 fd 0f 0b 48 89 de 48 c7 c7 60 e5 80 88 e8 00 1f d2 fd <0f> 0b 48 89 d9 48 c7 c7 20 e6 80 88 e8 ef 1e d2 fd 0f 0b 48 89 f1
kobject: 'loop3' (00000000c5585390): kobject_uevent_env
RSP: 0018:ffff8881974c7440 EFLAGS: 00010282
RAX: 0000000000000054 RBX: ffff8881d8b51930 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff816621c5 RDI: 0000000000000005
RBP: ffff8881974c7458 R08: ffff8881974b42c0 R09: ffffed103b5a5020
R10: ffffed103b5a5020 R11: ffff8881dad28107 R12: ffff8881d507d470
R13: ffffffff8a1dca60 R14: ffff8881974c7560 R15: 1ffff11032e98e94
FS:  0000000000000000(0000) GS:ffff8881dad00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000000966e000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
kobject: 'loop3' (00000000c5585390): fill_kobj_path: path = '/devices/virtual/block/loop3'