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ODEBUG: activate active (active state 0) object: ffff888026621618 object type: rcu_head hint: 0x0
WARNING: CPU: 1 PID: 6454 at lib/debugobjects.c:612 debug_print_object+0x1a2/0x2b0 lib/debugobjects.c:612
Modules linked in:
CPU: 1 UID: 0 PID: 6454 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
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 a0 93 f0 8b 4c 89 e6 48 c7 c7 20 88 f0 8b e8 7f 9a cc fc 90 <0f> 0b 90 90 58 83 05 56 e4 d3 0b 01 48 83 c4 18 5b 5d 41 5c 41 5d
RSP: 0018:ffffc90000a08ad8 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000003 RCX: ffffffff817b2018
RDX: ffff888035522480 RSI: ffffffff817b2025 RDI: 0000000000000001
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 00000000001bba88 R12: ffffffff8bf08e40
R13: ffffffff8b8ee6a0 R14: 0000000000000000 R15: ffffc90000a08b98
FS:  00005555854e4500(0000) GS:ffff888124af6000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff59f851762 CR3: 0000000058544000 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:580
 rcu_do_batch kernel/rcu/tree.c:2605 [inline]
 rcu_core+0x79c/0x1530 kernel/rcu/tree.c:2861
 handle_softirqs+0x219/0x8e0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0x109/0x170 kernel/softirq.c:723
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:739
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1052 [inline]
 sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1052
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x31/0x80 kernel/locking/spinlock.c:194
Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 16 21 33 f6 48 89 df e8 fe 74 33 f6 f7 c5 00 02 00 00 75 23 9c 58 f6 c4 02 75 37 <bf> 01 00 00 00 e8 25 7d 23 f6 65 8b 05 1e 96 3c 08 85 c0 74 16 5b
RSP: 0018:ffffc9000c597908 EFLAGS: 00000246

RAX: 0000000000000006 RBX: ffffffff9adcc8b8 RCX: 0000000000000007
RDX: 0000000000000000 RSI: ffffffff8da2ed5c RDI: ffffffff8bf082c0
RBP: 0000000000000282 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff908237d7 R11: 0000000000000001 R12: dffffc0000000000
R13: 0000000000000009 R14: 0000000000000009 R15: ffff88803560e000
 __debug_check_no_obj_freed lib/debugobjects.c:1108 [inline]
 debug_check_no_obj_freed+0x31f/0x600 lib/debugobjects.c:1129
 slab_free_hook mm/slub.c:2474 [inline]
 slab_free mm/slub.c:6642 [inline]
 kfree+0x291/0x6d0 mm/slub.c:6849
 tomoyo_realpath_from_path+0x19f/0x6e0 security/tomoyo/realpath.c:286
 tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
 tomoyo_path_perm+0x274/0x460 security/tomoyo/file.c:822
 tomoyo_path_symlink+0x97/0xe0 security/tomoyo/tomoyo.c:212
 security_path_symlink+0x152/0x2e0 security/security.c:2023
 do_symlinkat+0x10d/0x310 fs/namei.c:4911
 __do_sys_symlinkat fs/namei.c:4929 [inline]
 __se_sys_symlinkat fs/namei.c:4926 [inline]
 __x64_sys_symlinkat+0x93/0xc0 fs/namei.c:4926
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff59f78ecc7
Code: 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 0a 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe1ed58078 EFLAGS: 00000206 ORIG_RAX: 000000000000010a
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff59f78ecc7
RDX: 00007ff59f8158e4 RSI: 00000000ffffff9c RDI: 00007ffe1ed58110
RBP: 00007ffe1ed580bc R08: 0000000000000013 R09: 00007ffe1ed57dc7
R10: 0000000000000000 R11: 0000000000000206 R12: 000000000000006b
R13: 00000000000927c0 R14: 00000000002ef8e7 R15: 00007ffe1ed58110
 </TASK>
----------------
Code disassembly (best guess):
   0:	f5                   	cmc
   1:	53                   	push   %rbx
   2:	48 8b 74 24 10       	mov    0x10(%rsp),%rsi
   7:	48 89 fb             	mov    %rdi,%rbx
   a:	48 83 c7 18          	add    $0x18,%rdi
   e:	e8 16 21 33 f6       	call   0xf6332129
  13:	48 89 df             	mov    %rbx,%rdi
  16:	e8 fe 74 33 f6       	call   0xf6337519
  1b:	f7 c5 00 02 00 00    	test   $0x200,%ebp
  21:	75 23                	jne    0x46
  23:	9c                   	pushf
  24:	58                   	pop    %rax
  25:	f6 c4 02             	test   $0x2,%ah
  28:	75 37                	jne    0x61
* 2a:	bf 01 00 00 00       	mov    $0x1,%edi <-- trapping instruction
  2f:	e8 25 7d 23 f6       	call   0xf6237d59
  34:	65 8b 05 1e 96 3c 08 	mov    %gs:0x83c961e(%rip),%eax        # 0x83c9659
  3b:	85 c0                	test   %eax,%eax
  3d:	74 16                	je     0x55
  3f:	5b                   	pop    %rbx