XFS (loop3): log mount failed
ODEBUG: free active (active state 0) object type: timer_list hint: delayed_work_timer_fn+0x0/0x90 kernel/workqueue.c:4850
kobject: 'default' (ffff8880480cb670): kobject_cleanup, parent           (null)
------------[ cut here ]------------
WARNING: CPU: 0 PID: 7393 at lib/debugobjects.c:287 debug_print_object.cold+0xa7/0xdb lib/debugobjects.c:287
kobject: '9p-1' (ffff888092d9c110): kobject_add_internal: parent: 'bdi', set: 'devices'
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 7393 Comm: syz-executor.5 Not tainted 4.14.160-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x142/0x197 lib/dump_stack.c:58
 panic+0x1f9/0x42d kernel/panic.c:183
kobject: 'default' (ffff8880480cb670): calling ktype release
 __warn.cold+0x2f/0x2f kernel/panic.c:547
 report_bug+0x216/0x254 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:177 [inline]
 fixup_bug arch/x86/kernel/traps.c:172 [inline]
 do_error_trap+0x1bb/0x310 arch/x86/kernel/traps.c:295
kobject: 'default': free name
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:963
RIP: 0010:debug_print_object.cold+0xa7/0xdb lib/debugobjects.c:287
RSP: 0018:ffff888047a77538 EFLAGS: 00010086
kobject: '9p-1' (ffff888092d9c110): kobject_uevent_env
RAX: 0000000000000061 RBX: 0000000000000003 RCX: 0000000000000000
RDX: 0000000000040000 RSI: ffffffff814b9365 RDI: ffffed1008f4ee9d
RBP: ffff888047a77560 R08: 0000000000000061 R09: 0000000000000000
R10: 0000000000000000 R11: ffff888081b62240 R12: ffffffff86cbf760
R13: ffffffff813d9630 R14: 0000000000000000 R15: ffff88804ea11540
 __debug_check_no_obj_freed lib/debugobjects.c:747 [inline]
 debug_check_no_obj_freed+0x3f5/0x7b7 lib/debugobjects.c:776
kobject: 'EIO' (ffff8880480cb710): kobject_cleanup, parent           (null)
 kfree+0xbd/0x270 mm/slab.c:3814
 kvfree+0x4d/0x60 mm/util.c:416
 netdev_freemem+0x4c/0x60 net/core/dev.c:8039
kobject: '9p-1' (ffff888092d9c110): fill_kobj_path: path = '/devices/virtual/bdi/9p-1'
 netdev_release+0x72/0x90 net/core/net-sysfs.c:1497
 device_release+0x163/0x1a0 drivers/base/core.c:825
 kobject_cleanup lib/kobject.c:646 [inline]
 kobject_release lib/kobject.c:675 [inline]
 kref_put include/linux/kref.h:70 [inline]
 kobject_put.cold+0x269/0x2f9 lib/kobject.c:692
 netdev_run_todo+0x4e4/0x770 net/core/dev.c:7944
kobject: 'EIO' (ffff8880480cb710): calling ktype release
 rtnl_unlock net/core/rtnetlink.c:106 [inline]
 rtnetlink_rcv_msg+0x3ea/0xb70 net/core/rtnetlink.c:4308
kobject: 'EIO': free name
 netlink_rcv_skb+0x14f/0x3c0 net/netlink/af_netlink.c:2432
 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:4318
kobject: 'ENOSPC' (ffff8880480cb7b0): kobject_cleanup, parent           (null)
 netlink_unicast_kernel net/netlink/af_netlink.c:1286 [inline]
 netlink_unicast+0x44d/0x650 net/netlink/af_netlink.c:1312
 netlink_sendmsg+0x7c4/0xc60 net/netlink/af_netlink.c:1877
 sock_sendmsg_nosec net/socket.c:646 [inline]
 sock_sendmsg+0xce/0x110 net/socket.c:656
kobject: 'ENOSPC' (ffff8880480cb7b0): calling ktype release
 ___sys_sendmsg+0x70a/0x840 net/socket.c:2062
kobject: 'ENOSPC': free name
 __sys_sendmsg+0xb9/0x140 net/socket.c:2096
kobject: 'ENODEV' (ffff8880480cb850): kobject_cleanup, parent           (null)
 SYSC_sendmsg net/socket.c:2107 [inline]
 SyS_sendmsg+0x2d/0x50 net/socket.c:2103
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45a919
kobject: 'ENODEV' (ffff8880480cb850): calling ktype release
RSP: 002b:00007fb05fc29c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a919
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000007
RBP: 000000000075c1c0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb05fc2a6d4
R13: 00000000004c9a29 R14: 00000000004e1930 R15: 00000000ffffffff

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