------------[ cut here ]------------
ODEBUG: free active (active state 0) object: ffff888068e31090 object type: timer_list hint: rose_t0timer_expiry+0x0/0x350 net/rose/rose_link.c:-1
WARNING: CPU: 1 PID: 30 at lib/debugobjects.c:615 debug_print_object+0x16b/0x1e0 lib/debugobjects.c:612
Modules linked in:
CPU: 1 UID: 0 PID: 30 Comm: kauditd 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 07 cd 92 fd 4d 8b 0f 48 c7 c7 80 12 bf 8b 48 8b 34 24 4c 89 ea 89 e9 4d 89 f0 41 54 e8 5a 27 f0 fc 48 83 c4 08 90 <0f> 0b 90 90 ff 05 37 27 ea 0a 48 83 c4 08 5b 41 5c 41 5d 41 5e 41
RSP: 0018:ffffc90000a08a00 EFLAGS: 00010296
RAX: ba7589c1f171e200 RBX: dffffc0000000000 RCX: ffff88801ce89e40
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 0000000000000000 R08: ffffffff8f7cef77 R09: 1ffffffff1ef9dee
R10: dffffc0000000000 R11: fffffbfff1ef9def R12: ffffffff8a3967d0
R13: ffffffff8bbf1400 R14: ffff888068e31090 R15: ffffffff8b6cf7e0
FS:  0000000000000000(0000) GS:ffff888126239000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9b419156c0 CR3: 000000004be9f000 CR4: 0000000000350ef0
Call Trace:
 <IRQ>
 __debug_check_no_obj_freed lib/debugobjects.c:1099 [inline]
 debug_check_no_obj_freed+0x3a2/0x470 lib/debugobjects.c:1129
 slab_free_hook mm/slub.c:2474 [inline]
 slab_free mm/slub.c:6642 [inline]
 kfree+0x115/0x6d0 mm/slub.c:6849
 rose_neigh_put include/net/rose.h:166 [inline]
 rose_timer_expiry+0x4cb/0x600 net/rose/rose_timer.c:183
 call_timer_fn+0x17e/0x5f0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2373 [inline]
 __run_timer_base+0x61a/0x860 kernel/time/timer.c:2385
 run_timer_base kernel/time/timer.c:2394 [inline]
 run_timer_softirq+0xb7/0x180 kernel/time/timer.c:2404
 handle_softirqs+0x286/0x870 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0xca/0x1f0 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+0xa6/0xc0 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:console_flush_all+0x7f4/0xb10 arch/x86/include/asm/irqflags.h:-1
Code: ff ff e8 cf b0 1f 00 90 0f 0b 90 e9 62 fc ff ff e8 c1 b0 1f 00 e8 1c 4f a6 09 48 85 db 74 c0 e8 b2 b0 1f 00 fb 48 8b 5c 24 18 <48> 8b 44 24 20 42 80 3c 20 00 74 08 48 89 df e8 28 72 85 00 48 8b
RSP: 0018:ffffc90000a67740 EFLAGS: 00000293
RAX: ffffffff81a052fe RBX: ffffffff8e768098 RCX: ffff88801ce89e40
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000a67890 R08: ffffffff8f7cef77 R09: 1ffffffff1ef9dee
R10: dffffc0000000000 R11: fffffbfff1ef9def R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000000 R15: ffffffff8e768040
 __console_flush_and_unlock kernel/printk/printk.c:3258 [inline]
 console_unlock+0xbb/0x190 kernel/printk/printk.c:3298
 vprintk_emit+0x4c5/0x590 kernel/printk/printk.c:2423
 _printk+0xcf/0x120 kernel/printk/printk.c:2448
 kauditd_printk_skb kernel/audit.c:583 [inline]
 kauditd_hold_skb+0x1c8/0x210 kernel/audit.c:618
 kauditd_send_queue+0x2a4/0x2f0 kernel/audit.c:803
 kauditd_thread+0x74e/0x9a0 kernel/audit.c:927
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	e8 cf b0 1f 00       	call   0x1fb0d4
   5:	90                   	nop
   6:	0f 0b                	ud2
   8:	90                   	nop
   9:	e9 62 fc ff ff       	jmp    0xfffffc70
   e:	e8 c1 b0 1f 00       	call   0x1fb0d4
  13:	e8 1c 4f a6 09       	call   0x9a64f34
  18:	48 85 db             	test   %rbx,%rbx
  1b:	74 c0                	je     0xffffffdd
  1d:	e8 b2 b0 1f 00       	call   0x1fb0d4
  22:	fb                   	sti
  23:	48 8b 5c 24 18       	mov    0x18(%rsp),%rbx
* 28:	48 8b 44 24 20       	mov    0x20(%rsp),%rax <-- trapping instruction
  2d:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1)
  32:	74 08                	je     0x3c
  34:	48 89 df             	mov    %rbx,%rdi
  37:	e8 28 72 85 00       	call   0x857264
  3c:	48                   	rex.W
  3d:	8b                   	.byte 0x8b