hid-generic 0000:0000:0000.0029: unknown main item tag 0x0
hid-generic 0000:0000:0000.0029: hidraw0: <UNKNOWN> HID v0.00 Device [syz1] on syz0
SELinux: ebitmap: truncated map
SELinux: ebitmap: truncated map
------------[ cut here ]------------
WARNING: CPU: 1 PID: 3945 at lib/debugobjects.c:263 debug_print_object+0x181/0x210 lib/debugobjects.c:260
ODEBUG: free active (active state 0) object type: work_struct hint: flow_cache_gc_task+0x0/0x4b0 net/core/flow.c:247
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 3945 Comm: kworker/u4:20 Not tainted 4.9.124+ #84
Workqueue: netns cleanup_net
 ffff8801a95c7780 ffffffff81af4529 ffffffff82838de0 00000000ffffffff
 0000000000000000 0000000000000001 0000000000000107 ffff8801a95c7840
 ffffffff813f1b55 0000000041b58ab3 ffffffff82c2889b ffffffff813f1996
Call Trace:
 [<ffffffff81af4529>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81af4529>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff813f1b55>] panic+0x1bf/0x39f kernel/panic.c:179
 [<ffffffff813f1e24>] __warn.cold.9+0xc1/0x17f kernel/panic.c:542
 [<ffffffff810dcd52>] warn_slowpath_fmt+0xc2/0x100 kernel/panic.c:565
 [<ffffffff81b58fa1>] debug_print_object+0x181/0x210 lib/debugobjects.c:260
 [<ffffffff81b5b7ae>] __debug_check_no_obj_freed lib/debugobjects.c:720 [inline]
 [<ffffffff81b5b7ae>] debug_check_no_obj_freed+0x4ae/0x890 lib/debugobjects.c:749
 [<ffffffff814e2104>] slab_free_hook mm/slub.c:1348 [inline]
 [<ffffffff814e2104>] slab_free_freelist_hook mm/slub.c:1377 [inline]
 [<ffffffff814e2104>] slab_free mm/slub.c:2958 [inline]
 [<ffffffff814e2104>] kmem_cache_free+0x1a4/0x310 mm/slub.c:2980
 [<ffffffff822685e2>] net_free net/core/net_namespace.c:374 [inline]
 [<ffffffff822685e2>] net_drop_ns+0x62/0x80 net/core/net_namespace.c:381
 [<ffffffff82268a51>] cleanup_net+0x451/0x630 net/core/net_namespace.c:491
 [<ffffffff8112fcf1>] process_one_work+0x791/0x1470 kernel/workqueue.c:2092
 [<ffffffff81130aa6>] worker_thread+0xd6/0x10a0 kernel/workqueue.c:2226
 [<ffffffff811410dd>] kthread+0x26d/0x300 kernel/kthread.c:211
 [<ffffffff8278bc1c>] ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:373
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..