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ODEBUG: free active (active state 0) object: ffff888055ffb090 object type: timer_list hint: rose_t0timer_expiry+0x0/0x350 net/rose/rose_link.c:-1
WARNING: CPU: 0 PID: 19222 at lib/debugobjects.c:615 debug_print_object+0x16b/0x1e0 lib/debugobjects.c:612
Modules linked in:
CPU: 0 UID: 0 PID: 19222 Comm: modprobe Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:debug_print_object+0x16b/0x1e0 lib/debugobjects.c:612
Code: 4c 89 ff e8 87 9e 8d fd 4d 8b 0f 48 c7 c7 00 45 c0 8b 48 8b 34 24 4c 89 ea 89 e9 4d 89 f0 41 54 e8 0a 11 ec fc 48 83 c4 08 90 <0f> 0b 90 90 ff 05 67 56 07 0b 48 83 c4 08 5b 41 5c 41 5d 41 5e 41
RSP: 0000:ffffc90000007a10 EFLAGS: 00010292
RAX: 7cee37304a03a000 RBX: dffffc0000000000 RCX: ffff888076ccbc80
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bfa138 R12: ffffffff8a37af80
R13: ffffffff8bc04680 R14: ffff888055ffb090 R15: ffffffff8b6ce100
FS:  0000000000000000(0000) GS:ffff888125d3b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f56f3cea263 CR3: 0000000060188000 CR4: 00000000003526f0
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:2353 [inline]
 slab_free mm/slub.c:4695 [inline]
 kfree+0x112/0x440 mm/slub.c:4894
 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:1747
 expire_timers kernel/time/timer.c:1798 [inline]
 __run_timers kernel/time/timer.c:2372 [inline]
 __run_timer_base+0x61a/0x860 kernel/time/timer.c:2384
 run_timer_base kernel/time/timer.c:2393 [inline]
 run_timer_softirq+0xb7/0x180 kernel/time/timer.c:2403
 handle_softirqs+0x283/0x870 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:702
RIP: 0010:lock_release+0x2b5/0x3e0 kernel/locking/lockdep.c:5893
Code: 51 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f7 44 24 20 00 02 00 00 75 56 f7 c3 00 02 00 00 74 01 fb 65 48 8b 05 fb d9 f1 10 <48> 3b 44 24 28 0f 85 8b 00 00 00 48 83 c4 30 5b 41 5c 41 5d 41 5e
RSP: 0000:ffffc9000c86f250 EFLAGS: 00000206
RAX: 7cee37304a03a000 RBX: 0000000000000206 RCX: 7cee37304a03a000
RDX: 0000000000000001 RSI: ffffffff8d9c68ab RDI: ffffffff8bc03b60
RBP: ffff888076ccc7d8 R08: ffffc9000c86f6f0 R09: 0000000000000000
R10: ffffc9000c86f3d8 R11: fffff5200190de7d R12: 0000000000000001
R13: 0000000000000001 R14: ffffffff8e13a960 R15: ffff888076ccbc80
 rcu_lock_release include/linux/rcupdate.h:341 [inline]
 rcu_read_unlock include/linux/rcupdate.h:871 [inline]
 class_rcu_destructor include/linux/rcupdate.h:1169 [inline]
 unwind_next_frame+0x19a9/0x2390 arch/x86/kernel/unwind_orc.c:680
 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122
 save_stack+0xf5/0x1f0 mm/page_owner.c:156
 __set_page_owner+0x8d/0x4a0 mm/page_owner.c:329
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x240/0x2a0 mm/page_alloc.c:1851
 prep_new_page mm/page_alloc.c:1859 [inline]
 get_page_from_freelist+0x21e4/0x22c0 mm/page_alloc.c:3858
 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5148
 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2416
 folio_alloc_mpol_noprof mm/mempolicy.c:2435 [inline]
 vma_alloc_folio_noprof+0xe4/0x200 mm/mempolicy.c:2470
 folio_prealloc+0x30/0x180 mm/memory.c:-1
 do_cow_fault mm/memory.c:5597 [inline]
 do_fault mm/memory.c:5709 [inline]
 do_pte_missing mm/memory.c:4234 [inline]
 handle_pte_fault mm/memory.c:6052 [inline]
 __handle_mm_fault+0x16fd/0x5440 mm/memory.c:6195
 handle_mm_fault+0x40a/0x8e0 mm/memory.c:6364
 do_user_addr_fault+0xa7c/0x1380 arch/x86/mm/fault.c:1336
 handle_page_fault arch/x86/mm/fault.c:1476 [inline]
 exc_page_fault+0x82/0x100 arch/x86/mm/fault.c:1532
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f56f3d17ff2
Code: 0f 60 c0 66 0f 61 c0 66 0f 70 c0 00 48 83 fa 10 72 76 48 83 fa 20 77 12 0f 11 44 17 f0 0f 11 07 c3 0f 11 47 e0 0f 11 47 f0 c3 <0f> 11 07 0f 11 47 10 48 01 d7 48 83 fa 40 76 e7 0f 11 40 20 0f 11
RSP: 002b:00007fff6dbfe5f8 EFLAGS: 00010206
RAX: 00007f56f3cea263 RBX: 0000000000000004 RCX: 00007f56f3cea918
RDX: 00000000000006b5 RSI: 0000000000000000 RDI: 00007f56f3cea263
RBP: 00007fff6dbfe950 R08: 00007f56f3cea263 R09: 0000000000000003
R10: 0000000000000812 R11: 00007fff6dbfea38 R12: 00007fff6dbfe6a8
R13: 00007f56f3ceb0c0 R14: 00007fff6dbfe9f0 R15: 00007f56f3cea918
 </TASK>
----------------
Code disassembly (best guess):
   0:	51                   	push   %rcx
   1:	48 c7 44 24 20 00 00 	movq   $0x0,0x20(%rsp)
   8:	00 00
   a:	9c                   	pushf
   b:	8f 44 24 20          	pop    0x20(%rsp)
   f:	f7 44 24 20 00 02 00 	testl  $0x200,0x20(%rsp)
  16:	00
  17:	75 56                	jne    0x6f
  19:	f7 c3 00 02 00 00    	test   $0x200,%ebx
  1f:	74 01                	je     0x22
  21:	fb                   	sti
  22:	65 48 8b 05 fb d9 f1 	mov    %gs:0x10f1d9fb(%rip),%rax        # 0x10f1da25
  29:	10
* 2a:	48 3b 44 24 28       	cmp    0x28(%rsp),%rax <-- trapping instruction
  2f:	0f 85 8b 00 00 00    	jne    0xc0
  35:	48 83 c4 30          	add    $0x30,%rsp
  39:	5b                   	pop    %rbx
  3a:	41 5c                	pop    %r12
  3c:	41 5d                	pop    %r13
  3e:	41 5e                	pop    %r14