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ODEBUG: activate active (active state 1) object: ffff8880612923d8 object type: rcu_head hint: 0x0
WARNING: lib/debugobjects.c:615 at debug_print_object+0x16b/0x1e0 lib/debugobjects.c:612, CPU#1: udevd/5933
Modules linked in:
CPU: 1 UID: 0 PID: 5933 Comm: udevd 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+0x16b/0x1e0 lib/debugobjects.c:612
Code: 4c 89 ff e8 57 da 85 fd 4d 8b 0f 48 c7 c7 80 3b e1 8b 48 8b 34 24 4c 89 ea 89 e9 4d 89 f0 41 54 e8 aa b7 e1 fc 48 83 c4 08 90 <0f> 0b 90 90 ff 05 07 ae 1d 0b 48 83 c4 08 5b 41 5c 41 5d 41 5e 41
RSP: 0018:ffffc90000a088e0 EFLAGS: 00010292
RAX: fa3c804f07d98000 RBX: dffffc0000000000 RCX: ffff8880268c9e80
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1c3a6ec R12: 0000000000000000
R13: ffffffff8be13d00 R14: ffff8880612923d8 R15: ffffffff8b8be780
FS:  00007f1902fdc880(0000) GS:ffff888125b76000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc6665dff8 CR3: 0000000030dea000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 debug_object_activate+0x26a/0x420 lib/debugobjects.c:842
 debug_rcu_head_queue kernel/rcu/rcu.h:236 [inline]
 __call_rcu_common kernel/rcu/tree.c:3108 [inline]
 call_rcu+0xaa/0x9c0 kernel/rcu/tree.c:3243
 radix_tree_node_free lib/radix-tree.c:310 [inline]
 delete_node+0x1b6/0xa50 lib/radix-tree.c:573
 radix_tree_delete_item+0x2b6/0x400 lib/radix-tree.c:1430
 afs_cell_destroy+0x16f/0x2c0 fs/afs/cell.c:574
 rcu_do_batch kernel/rcu/tree.c:2605 [inline]
 rcu_core+0xcab/0x1770 kernel/rcu/tree.c:2861
 handle_softirqs+0x27d/0x880 kernel/softirq.c:626
 __do_softirq kernel/softirq.c:660 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:727
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:743
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1055 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1055
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:__first_node include/linux/nodemask.h:253 [inline]
RIP: 0010:policy_nodemask+0x4d9/0x720 mm/mempolicy.c:2273
Code: 89 d9 80 e1 07 80 c1 03 38 c1 7c b5 48 89 df e8 fd 3f 03 00 eb ab e8 b6 e7 9c ff e9 fe 00 00 00 e8 ac e7 9c ff b8 40 00 00 00 <83> f8 40 bb 40 00 00 00 0f 42 d8 4c 89 e8 48 c1 e8 03 48 b9 00 00
RSP: 0018:ffffc90004a777f8 EFLAGS: 00000242
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffff8880268c9e80
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 00000000000d2040 R08: ffff8880268c9e80 R09: 0000000000000005
R10: 0000000000000006 R11: 0000000000000000 R12: 0000000000000001
R13: ffffc90004a77864 R14: ffffffff99cbcf48 R15: ffffffffffffffff
 alloc_pages_mpol+0x52/0x4a0 mm/mempolicy.c:2447
 alloc_slab_page mm/slub.c:3077 [inline]
 allocate_slab+0x96/0x350 mm/slub.c:3250
 new_slab mm/slub.c:3304 [inline]
 ___slab_alloc+0xf56/0x1990 mm/slub.c:4653
 __slab_alloc+0x65/0x100 mm/slub.c:4776
 __slab_alloc_node mm/slub.c:4852 [inline]
 slab_alloc_node mm/slub.c:5248 [inline]
 __do_kmalloc_node mm/slub.c:5653 [inline]
 __kmalloc_noprof+0x47d/0x800 mm/slub.c:5666
 kmalloc_noprof include/linux/slab.h:961 [inline]
 tomoyo_realpath_from_path+0xe3/0x5d0 security/tomoyo/realpath.c:251
 tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
 tomoyo_path_perm+0x213/0x4b0 security/tomoyo/file.c:822
 security_inode_getattr+0x12f/0x330 security/security.c:1869
 vfs_getattr fs/stat.c:259 [inline]
 vfs_fstat fs/stat.c:281 [inline]
 __do_sys_newfstat fs/stat.c:555 [inline]
 __se_sys_newfstat fs/stat.c:550 [inline]
 __x64_sys_newfstat+0xfc/0x200 fs/stat.c:550
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1902911ad7
Code: 73 01 c3 48 8b 0d 21 f3 0d 00 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 05 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 8b 15 f1 f2 0d 00 f7 d8 64 89 02 b8
RSP: 002b:00007fff42790268 EFLAGS: 00000246 ORIG_RAX: 0000000000000005
RAX: ffffffffffffffda RBX: 000055a6a1300c50 RCX: 00007f1902911ad7
RDX: 0000000000000000 RSI: 00007fff427902b0 RDI: 0000000000000009
RBP: 0000000000000001 R08: 00000000000001e0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000055a69246c95f
R13: 000055a69247d660 R14: 0000000000000000 R15: 0000000000000009
 </TASK>
----------------
Code disassembly (best guess):
   0:	89 d9                	mov    %ebx,%ecx
   2:	80 e1 07             	and    $0x7,%cl
   5:	80 c1 03             	add    $0x3,%cl
   8:	38 c1                	cmp    %al,%cl
   a:	7c b5                	jl     0xffffffc1
   c:	48 89 df             	mov    %rbx,%rdi
   f:	e8 fd 3f 03 00       	call   0x34011
  14:	eb ab                	jmp    0xffffffc1
  16:	e8 b6 e7 9c ff       	call   0xff9ce7d1
  1b:	e9 fe 00 00 00       	jmp    0x11e
  20:	e8 ac e7 9c ff       	call   0xff9ce7d1
  25:	b8 40 00 00 00       	mov    $0x40,%eax
* 2a:	83 f8 40             	cmp    $0x40,%eax <-- trapping instruction
  2d:	bb 40 00 00 00       	mov    $0x40,%ebx
  32:	0f 42 d8             	cmovb  %eax,%ebx
  35:	4c 89 e8             	mov    %r13,%rax
  38:	48 c1 e8 03          	shr    $0x3,%rax
  3c:	48                   	rex.W
  3d:	b9                   	.byte 0xb9