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ODEBUG: free active (active state 0) object: ffff8880796ba890 object type: timer_list hint: rose_t0timer_expiry+0x0/0x350 net/rose/rose_link.c:-1
WARNING: CPU: 1 PID: 17568 at lib/debugobjects.c:615 debug_print_object+0x16b/0x1e0 lib/debugobjects.c:612
Modules linked in:
CPU: 1 UID: 0 PID: 17568 Comm: syz-executor 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 37 f9 8b fd 4d 8b 0f 48 c7 c7 80 7e c0 8b 48 8b 34 24 4c 89 ea 89 e9 4d 89 f0 41 54 e8 fa 77 e9 fc 48 83 c4 08 90 <0f> 0b 90 90 ff 05 77 06 05 0b 48 83 c4 08 5b 41 5c 41 5d 41 5e 41
RSP: 0018:ffffc90000a08a00 EFLAGS: 00010296
RAX: d7814d0ad5277500 RBX: dffffc0000000000 RCX: ffff88804c1a5ac0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bfa658 R12: ffffffff8a3e0c40
R13: ffffffff8bc08000 R14: ffff8880796ba890 R15: ffffffff8b6cf600
FS:  000055556fd34500(0000) GS:ffff888125e0f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000140 CR3: 0000000022286000 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:2446 [inline]
 slab_free mm/slub.c:6574 [inline]
 kfree+0x115/0x6d0 mm/slub.c:6781
 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:is_vn_id_valid mm/vmalloc.c:1022 [inline]
RIP: 0010:free_vmap_area_noflush+0x16b/0x4d0 mm/vmalloc.c:2423
Code: e8 fa 5d 10 00 49 2b 1c 24 48 c1 eb 0c 48 c7 c7 c0 66 e1 8d be 08 00 00 00 e8 81 60 10 00 49 89 de f0 4c 0f c1 35 65 92 cc 0b <44> 8b 3d 5a 42 89 0d 89 ef 44 89 fe e8 54 c1 aa ff 44 39 fd 73 17
RSP: 0018:ffffc9000c2e77f0 EFLAGS: 00000206
RAX: dffffc0000000001 RBX: 0000000000000002 RCX: ffffffff8214d44f
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffffff8de166c0
RBP: 0000000000000001 R08: ffffffff8de166c7 R09: 1ffffffff1bc2cd8
R10: dffffc0000000000 R11: fffffbfff1bc2cd9 R12: ffff88805618eea0
R13: 1ffff1100ac31dd4 R14: 0000000000001915 R15: 0000000000000002
 free_unmap_vmap_area mm/vmalloc.c:2447 [inline]
 remove_vm_area+0x2b5/0x300 mm/vmalloc.c:3301
 vfree+0x63/0x400 mm/vmalloc.c:3420
 copy_entries_to_user net/ipv4/netfilter/ip_tables.c:866 [inline]
 get_entries net/ipv4/netfilter/ip_tables.c:1022 [inline]
 do_ipt_get_ctl+0xebc/0x1180 net/ipv4/netfilter/ip_tables.c:1668
 nf_getsockopt+0x26b/0x290 net/netfilter/nf_sockopt.c:116
 ip_getsockopt+0x1c4/0x220 net/ipv4/ip_sockglue.c:1777
 do_sock_getsockopt+0x372/0x450 net/socket.c:2421
 __sys_getsockopt net/socket.c:2450 [inline]
 __do_sys_getsockopt net/socket.c:2457 [inline]
 __se_sys_getsockopt net/socket.c:2454 [inline]
 __x64_sys_getsockopt+0x1a5/0x250 net/socket.c:2454
 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: 0033:0x7f615ef90c0a
Code: ff c3 66 0f 1f 44 00 00 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb b8 0f 1f 44 00 00 49 89 ca b8 37 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 06 c3 0f 1f 44 00 00 48 c7 c2 a8 ff ff ff f7
RSP: 002b:00007fffd97d98b8 EFLAGS: 00000216 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 00007fffd97d9940 RCX: 00007f615ef90c0a
RDX: 0000000000000041 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000003 R08: 00007fffd97d98dc R09: 00007fffd97d9cf7
R10: 00007fffd97d9940 R11: 0000000000000216 R12: 00007f615f1b4e60
R13: 00007fffd97d98dc R14: 0000000000000000 R15: 00007f615f1b7020
 </TASK>
----------------
Code disassembly (best guess):
   0:	e8 fa 5d 10 00       	call   0x105dff
   5:	49 2b 1c 24          	sub    (%r12),%rbx
   9:	48 c1 eb 0c          	shr    $0xc,%rbx
   d:	48 c7 c7 c0 66 e1 8d 	mov    $0xffffffff8de166c0,%rdi
  14:	be 08 00 00 00       	mov    $0x8,%esi
  19:	e8 81 60 10 00       	call   0x10609f
  1e:	49 89 de             	mov    %rbx,%r14
  21:	f0 4c 0f c1 35 65 92 	lock xadd %r14,0xbcc9265(%rip)        # 0xbcc928f
  28:	cc 0b
* 2a:	44 8b 3d 5a 42 89 0d 	mov    0xd89425a(%rip),%r15d        # 0xd89428b <-- trapping instruction
  31:	89 ef                	mov    %ebp,%edi
  33:	44 89 fe             	mov    %r15d,%esi
  36:	e8 54 c1 aa ff       	call   0xffaac18f
  3b:	44 39 fd             	cmp    %r15d,%ebp
  3e:	73 17                	jae    0x57