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ODEBUG: activate active (active state 0) object: ffff88802709eed8 object type: rcu_head hint: 0x0
WARNING: CPU: 1 PID: 21409 at lib/debugobjects.c:612 debug_print_object+0x1a2/0x2b0 lib/debugobjects.c:612
Modules linked in:
CPU: 1 UID: 0 PID: 21409 Comm: kworker/u8:30 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet
RIP: 0010:debug_print_object+0x1a2/0x2b0 lib/debugobjects.c:612
Code: fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 54 41 56 48 8b 14 dd e0 3b 16 8c 4c 89 e6 48 c7 c7 60 30 16 8c e8 df 54 8f fc 90 <0f> 0b 90 90 58 83 05 46 b6 c0 0b 01 48 83 c4 18 5b 5d 41 5c 41 5d
RSP: 0018:ffffc90000a08ad8 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000003 RCX: ffffffff817a3388
RDX: ffff888054c32440 RSI: ffffffff817a3395 RDI: 0000000000000001
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 00000000000be638 R12: ffffffff8c163680
R13: ffffffff8baeb6a0 R14: 0000000000000000 R15: ffffc90000a08b98
FS:  0000000000000000(0000) GS:ffff8881247b6000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f28947ea38c CR3: 000000000e380000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 debug_object_activate+0x2bc/0x4c0 lib/debugobjects.c:842
 debug_rcu_head_queue kernel/rcu/rcu.h:236 [inline]
 __call_rcu_common.constprop.0+0x35/0xa10 kernel/rcu/tree.c:3108
 radix_tree_node_free lib/radix-tree.c:310 [inline]
 delete_node+0x1fc/0x8d0 lib/radix-tree.c:573
 __radix_tree_delete+0x193/0x3d0 lib/radix-tree.c:1379
 radix_tree_delete_item+0xea/0x230 lib/radix-tree.c:1430
 afs_cell_destroy+0x1db/0x310 fs/afs/cell.c:523
 rcu_do_batch kernel/rcu/tree.c:2605 [inline]
 rcu_core+0x799/0x1530 kernel/rcu/tree.c:2861
 handle_softirqs+0x219/0x8e0 kernel/softirq.c:579
 __do_softirq kernel/softirq.c:613 [inline]
 invoke_softirq kernel/softirq.c:453 [inline]
 __irq_exit_rcu+0x109/0x170 kernel/softirq.c:680
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline]
 sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1050
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_release+0x183/0x2f0 kernel/locking/lockdep.c:5893
Code: 0f c1 05 f8 1d 3f 12 83 f8 01 0f 85 1d 01 00 00 9c 58 f6 c4 02 0f 85 08 01 00 00 41 f7 c5 00 02 00 00 74 01 fb 48 8b 44 24 10 <65> 48 2b 05 0d dc 3e 12 0f 85 58 01 00 00 48 83 c4 18 5b 41 5c 41
RSP: 0018:ffffc900110dfa78 EFLAGS: 00000206
RAX: c04d37ee621dd100 RBX: ffffffff8e5c1260 RCX: ffffc900110dfa84
RDX: 0000000000000003 RSI: ffffffff8de2c4c0 RDI: ffffffff8c162b00
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff8b5bf950
R13: 0000000000000202 R14: ffff888054c32440 R15: 0000000000000004
 rcu_lock_release include/linux/rcupdate.h:341 [inline]
 rcu_read_unlock include/linux/rcupdate.h:871 [inline]
 batadv_iv_ogm_slide_own_bcast_window net/batman-adv/bat_iv_ogm.c:779 [inline]
 batadv_iv_ogm_schedule_buff+0x785/0x14c0 net/batman-adv/bat_iv_ogm.c:834
 batadv_iv_ogm_schedule net/batman-adv/bat_iv_ogm.c:874 [inline]
 batadv_iv_ogm_schedule net/batman-adv/bat_iv_ogm.c:867 [inline]
 batadv_iv_send_outstanding_bat_ogm_packet+0x329/0x920 net/batman-adv/bat_iv_ogm.c:1714
 process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3236
 process_scheduled_works kernel/workqueue.c:3319 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400
 kthread+0x3c2/0x780 kernel/kthread.c:463
 ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
----------------
Code disassembly (best guess):
   0:	0f c1 05 f8 1d 3f 12 	xadd   %eax,0x123f1df8(%rip)        # 0x123f1dff
   7:	83 f8 01             	cmp    $0x1,%eax
   a:	0f 85 1d 01 00 00    	jne    0x12d
  10:	9c                   	pushf
  11:	58                   	pop    %rax
  12:	f6 c4 02             	test   $0x2,%ah
  15:	0f 85 08 01 00 00    	jne    0x123
  1b:	41 f7 c5 00 02 00 00 	test   $0x200,%r13d
  22:	74 01                	je     0x25
  24:	fb                   	sti
  25:	48 8b 44 24 10       	mov    0x10(%rsp),%rax
* 2a:	65 48 2b 05 0d dc 3e 	sub    %gs:0x123edc0d(%rip),%rax        # 0x123edc3f <-- trapping instruction
  31:	12
  32:	0f 85 58 01 00 00    	jne    0x190
  38:	48 83 c4 18          	add    $0x18,%rsp
  3c:	5b                   	pop    %rbx
  3d:	41 5c                	pop    %r12
  3f:	41                   	rex.B