bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
bond0 (unregistering): Released all slaves
------------[ cut here ]------------
ODEBUG: free active (active state 0) object type: timer_list hint: batadv_dat_purge+0x0/0x70 net/batman-adv/distributed-arp-table.c:171
WARNING: CPU: 1 PID: 11 at lib/debugobjects.c:502 debug_print_object+0x16e/0x250 lib/debugobjects.c:502
Modules linked in:
CPU: 1 PID: 11 Comm: kworker/u16:1 Not tainted 6.1.0-rc7-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
Workqueue: netns cleanup_net
RIP: 0010:debug_print_object+0x16e/0x250 lib/debugobjects.c:502
Code: ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 af 00 00 00 48 8b 14 dd c0 21 a6 8a 4c 89 ee 48 c7 c7 a0 15 a6 8a e8 3c 36 9c 05 <0f> 0b 83 05 25 ce 46 0a 01 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e c3
RSP: 0018:ffffc900005ef8c0 EFLAGS: 00010086
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: ffff888012c8e280 RSI: ffffffff8164964c RDI: fffff520000bdf0a
RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000000 R12: ffffffff8a4e8ca0
R13: ffffffff8aa61a80 R14: ffffffff816dea40 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff88802c700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8b9c15e300 CR3: 000000001f62f000 CR4: 0000000000150ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
__debug_check_no_obj_freed lib/debugobjects.c:989 [inline]
debug_check_no_obj_freed+0x305/0x420 lib/debugobjects.c:1020
__do_kmem_cache_free mm/slab.c:3584 [inline]
__kmem_cache_free+0x194/0x3b0 mm/slab.c:3592
kvfree+0x46/0x50 mm/util.c:627
device_release+0xa3/0x240 drivers/base/core.c:2330
kobject_cleanup lib/kobject.c:673 [inline]
kobject_release lib/kobject.c:704 [inline]
kref_put include/linux/kref.h:65 [inline]
kobject_put+0x1c2/0x4d0 lib/kobject.c:721
netdev_run_todo+0x762/0x1100 net/core/dev.c:10370
default_device_exit_batch+0x452/0x590 net/core/dev.c:11342
ops_exit_list+0x125/0x170 net/core/net_namespace.c:174
cleanup_net+0x4ee/0xb00 net/core/net_namespace.c:601
process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
worker_thread+0x669/0x1090 kernel/workqueue.c:2436
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
</TASK>