------------[ cut here ]------------
ODEBUG: free active (active state 0) object type: timer_list hint: rose_transmit_restart_request net/rose/rose_link.c:-1 [inline]
ODEBUG: free active (active state 0) object type: timer_list hint: rose_t0timer_expiry+0x0/0x350 net/rose/rose_link.c:284
WARNING: CPU: 0 PID: 3638 at lib/debugobjects.c:518 debug_print_object lib/debugobjects.c:515 [inline]
WARNING: CPU: 0 PID: 3638 at lib/debugobjects.c:518 __debug_check_no_obj_freed lib/debugobjects.c:979 [inline]
WARNING: CPU: 0 PID: 3638 at lib/debugobjects.c:518 debug_check_no_obj_freed+0x43c/0x530 lib/debugobjects.c:1009
Modules linked in:
CPU: 0 PID: 3638 Comm: udevd Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:debug_print_object lib/debugobjects.c:515 [inline]
RIP: 0010:__debug_check_no_obj_freed lib/debugobjects.c:979 [inline]
RIP: 0010:debug_check_no_obj_freed+0x43c/0x530 lib/debugobjects.c:1009
Code: ef e8 98 78 c5 fd 4c 8b 45 00 48 c7 c7 00 06 df 8a 48 c7 c6 c0 02 df 8a 48 c7 c2 60 07 df 8a 8b 0c 24 4d 89 e9 e8 a4 81 41 fd <0f> 0b 4c 8b 6c 24 18 48 b9 00 00 00 00 00 fc ff df ff 05 95 30 14
RSP: 0018:ffffc90000007a10 EFLAGS: 00010246
RAX: 15203391bb23b800 RBX: ffffffff96e91b70 RCX: ffff88807b930000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: ffffffff8a8de220 R08: dffffc0000000000 R09: fffff52000000ed1
R10: fffff52000000ed1 R11: 1ffff92000000ed0 R12: ffff8880556d9a00
R13: ffffffff8918f950 R14: ffff8880556d9000 R15: ffff8880556d9890
FS:  00007f9425a6d880(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f85c4f056c0 CR3: 000000002dee3000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 slab_free_hook mm/slub.c:1704 [inline]
 slab_free_freelist_hook+0xd2/0x1a0 mm/slub.c:1755
 slab_free mm/slub.c:3687 [inline]
 __kmem_cache_free+0xb6/0x1f0 mm/slub.c:3700
 rose_neigh_put include/net/rose.h:166 [inline]
 rose_timer_expiry+0x4a7/0x5d0 net/rose/rose_timer.c:183
 call_timer_fn+0x1a0/0x670 kernel/time/timer.c:1504
 expire_timers kernel/time/timer.c:1549 [inline]
 __run_timers+0x525/0x7c0 kernel/time/timer.c:1820
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1833
 handle_softirqs+0x2a1/0x920 kernel/softirq.c:596
 __do_softirq kernel/softirq.c:630 [inline]
 invoke_softirq kernel/softirq.c:470 [inline]
 __irq_exit_rcu+0x12f/0x220 kernel/softirq.c:679
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:unwind_next_frame+0x176a/0x20b0 arch/x86/kernel/unwind_orc.c:-1
Code: 85 9e 08 00 00 49 0f bf 04 24 48 01 c6 48 89 df 4c 89 fa e8 58 09 00 00 84 c0 0f 84 41 01 00 00 49 bd 00 00 00 00 00 fc ff df <48> 8b 44 24 18 42 0f b6 04 28 84 c0 0f 85 29 06 00 00 8b 84 24 8c
RSP: 0018:ffffc90003297830 EFLAGS: 00000202
RAX: 1ffff92000652f01 RBX: ffffc90003297908 RCX: 0000000000000001
RDX: ffffc90003297948 RSI: dffffc0000000000 RDI: ffffc90003297a30
RBP: ffffffff8ea232d0 R08: ffffc90003297a30 R09: ffffc90003297958
----------------
Code disassembly (best guess):
   0:	85 9e 08 00 00 49    	test   %ebx,0x49000008(%rsi)
   6:	0f bf 04 24          	movswl (%rsp),%eax
   a:	48 01 c6             	add    %rax,%rsi
   d:	48 89 df             	mov    %rbx,%rdi
  10:	4c 89 fa             	mov    %r15,%rdx
  13:	e8 58 09 00 00       	call   0x970
  18:	84 c0                	test   %al,%al
  1a:	0f 84 41 01 00 00    	je     0x161
  20:	49 bd 00 00 00 00 00 	movabs $0xdffffc0000000000,%r13
  27:	fc ff df
* 2a:	48 8b 44 24 18       	mov    0x18(%rsp),%rax <-- trapping instruction
  2f:	42 0f b6 04 28       	movzbl (%rax,%r13,1),%eax
  34:	84 c0                	test   %al,%al
  36:	0f 85 29 06 00 00    	jne    0x665
  3c:	8b                   	.byte 0x8b
  3d:	84 24 8c             	test   %ah,(%rsp,%rcx,4)