------------[ cut here ]------------
ODEBUG: free active (active state 0) object type: timer_list hint: arch_atomic_fetch_sub_release arch/arm64/include/asm/atomic.h:51 [inline]
ODEBUG: free active (active state 0) object type: timer_list hint: atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:177 [inline]
ODEBUG: free active (active state 0) object type: timer_list hint: __refcount_sub_and_test include/linux/refcount.h:272 [inline]
ODEBUG: free active (active state 0) object type: timer_list hint: __refcount_dec_and_test include/linux/refcount.h:315 [inline]
ODEBUG: free active (active state 0) object type: timer_list hint: refcount_dec_and_test include/linux/refcount.h:333 [inline]
ODEBUG: free active (active state 0) object type: timer_list hint: kref_put include/linux/kref.h:64 [inline]
ODEBUG: free active (active state 0) object type: timer_list hint: batadv_dat_entry_put net/batman-adv/distributed-arp-table.c:133 [inline]
ODEBUG: free active (active state 0) object type: timer_list hint: batadv_dat_purge+0x0/0x284 net/batman-adv/distributed-arp-table.c:1829
WARNING: CPU: 1 PID: 3439 at lib/debugobjects.c:505 debug_print_object lib/debugobjects.c:502 [inline]
WARNING: CPU: 1 PID: 3439 at lib/debugobjects.c:505 __debug_check_no_obj_freed lib/debugobjects.c:989 [inline]
WARNING: CPU: 1 PID: 3439 at lib/debugobjects.c:505 debug_check_no_obj_freed+0x214/0x2b0 lib/debugobjects.c:1020
Modules linked in:
CPU: 1 PID: 3439 Comm: kworker/u4:14 Not tainted 6.1.0-rc4-syzkaller-31859-g56751c56c2a2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022
Workqueue: netns cleanup_net
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : debug_print_object lib/debugobjects.c:502 [inline]
pc : __debug_check_no_obj_freed lib/debugobjects.c:989 [inline]
pc : debug_check_no_obj_freed+0x214/0x2b0 lib/debugobjects.c:1020
lr : debug_print_object lib/debugobjects.c:502 [inline]
lr : __debug_check_no_obj_freed lib/debugobjects.c:989 [inline]
lr : debug_check_no_obj_freed+0x214/0x2b0 lib/debugobjects.c:1020
sp : ffff8000221939b0
x29: ffff8000221939d0 x28: ffff000124101000 x27: ffff000124102000
x26: ffff000110a14280 x25: ffff0001120a2d48 x24: ffff80000c04f7d0
x23: ffff0001241014f8 x22: ffff80000c04f7d0 x21: 0000000000000001
x20: dead000000000100 x19: ffff000124100000 x18: 00000000000000ff
x17: ffff8001f1dbd000 x16: ffff80000db1a158 x15: ffff000111443480
x14: 0000000000000000 x13: 00000000ffffffff x12: ffff000111443480
x11: ff808000081c06c8 x10: 0000000000000000 x9 : 0927cb33567ceb00
x8 : 0927cb33567ceb00 x7 : ffff800008162114 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : ffff0001fefddcc8 x1 : 0000000100000000 x0 : 000000000000005d
Call trace:
 debug_print_object lib/debugobjects.c:502 [inline]
 __debug_check_no_obj_freed lib/debugobjects.c:989 [inline]
 debug_check_no_obj_freed+0x214/0x2b0 lib/debugobjects.c:1020
 slab_free_hook mm/slub.c:1699 [inline]
 slab_free_freelist_hook mm/slub.c:1750 [inline]
 slab_free mm/slub.c:3661 [inline]
 __kmem_cache_free+0x12c/0x314 mm/slub.c:3674
 kfree+0x9c/0x118 mm/slab_common.c:1007
 kvfree+0x40/0x50 mm/util.c:627
 netdev_freemem+0x24/0x34 net/core/dev.c:10542
 netdev_release+0x48/0x60 net/core/net-sysfs.c:1910
 device_release+0x44/0xe0
 kobject_cleanup+0xe8/0x280 lib/kobject.c:673
 kobject_release lib/kobject.c:704 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x94/0xf8 lib/kobject.c:721
 netdev_run_todo+0x650/0x6f0 net/core/dev.c:10370
 rtnl_unlock+0x14/0x20 net/core/rtnetlink.c:147
 default_device_exit_batch+0x3c4/0x424 net/core/dev.c:11342
 ops_exit_list net/core/net_namespace.c:174 [inline]
 cleanup_net+0x3cc/0x648 net/core/net_namespace.c:601
 process_one_work+0x2d8/0x504 kernel/workqueue.c:2289
 worker_thread+0x340/0x610 kernel/workqueue.c:2436
 kthread+0x12c/0x158 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:863
irq event stamp: 3646842
hardirqs last  enabled at (3646841): [<ffff8000081621a4>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1366 [inline]
hardirqs last  enabled at (3646841): [<ffff8000081621a4>] finish_lock_switch+0x94/0xe8 kernel/sched/core.c:4950
hardirqs last disabled at (3646842): [<ffff80000c009b8c>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (3646834): [<ffff8000080102e4>] _stext+0x2e4/0x37c
softirqs last disabled at (3646787): [<ffff800008017c88>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:79
---[ end trace 0000000000000000 ]---