------------[ cut here ]------------
ODEBUG: free active (active state 0) object: ffff88807d6f5890 object type: timer_list hint: rose_t0timer_expiry+0x0/0x560 net/rose/rose_link.c:-1
WARNING: lib/debugobjects.c:615 at debug_print_object lib/debugobjects.c:612 [inline], CPU#1: modprobe/23851
WARNING: lib/debugobjects.c:615 at __debug_check_no_obj_freed lib/debugobjects.c:1099 [inline], CPU#1: modprobe/23851
WARNING: lib/debugobjects.c:615 at debug_check_no_obj_freed+0x405/0x550 lib/debugobjects.c:1129, CPU#1: modprobe/23851
Modules linked in:
CPU: 1 UID: 0 PID: 23851 Comm: modprobe Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:debug_print_object lib/debugobjects.c:612 [inline]
RIP: 0010:__debug_check_no_obj_freed lib/debugobjects.c:1099 [inline]
RIP: 0010:debug_check_no_obj_freed+0x44a/0x550 lib/debugobjects.c:1129
Code: 89 44 24 20 e8 b7 6b 7e fd 48 8b 44 24 20 4c 8b 4d 00 4c 89 ef 48 c7 c6 40 6b 27 8c 48 c7 c2 c0 70 27 8c 8b 0c 24 4d 89 f8 50 <67> 48 0f b9 3a 48 83 c4 08 4c 8b 6c 24 18 48 b9 00 00 00 00 00 fc
RSP: 0000:ffffc90000a08b68 EFLAGS: 00010246
RAX: ffffffff8a888d00 RBX: ffffffff9a4af930 RCX: 0000000000000000
RDX: ffffffff8c2770c0 RSI: ffffffff8c276b40 RDI: ffffffff901b4570
RBP: ffffffff8bcf4a00 R08: ffff88807d6f5890 R09: ffffffff8bcf5d20
R10: dffffc0000000000 R11: ffffffff81b099e0 R12: ffff88807d6f5a00
R13: ffffffff901b4570 R14: ffff88807d6f5000 R15: ffff88807d6f5890
FS:  0000000000000000(0000) GS:ffff8881255b0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f24c62e8010 CR3: 000000009db2c000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 slab_free_hook mm/slub.c:2601 [inline]
 slab_free mm/slub.c:6082 [inline]
 kfree+0x13a/0x610 mm/slub.c:6399
 rose_neigh_put include/net/rose.h:166 [inline]
 rose_timer_expiry+0x4cb/0x600 net/rose/rose_timer.c:183
 call_timer_fn+0x192/0x5a0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2373 [inline]
 __run_timer_base+0x652/0x8b0 kernel/time/timer.c:2385
 run_timer_base kernel/time/timer.c:2394 [inline]
 run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2404
 handle_softirqs+0x22a/0x7c0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0x5f/0x150 kernel/softirq.c:723
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:739
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1056
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:lock_release+0x2d7/0x3a0 kernel/locking/lockdep.c:5893
Code: b7 76 11 00 00 00 00 eb b5 e8 25 b4 fd 09 f7 c3 00 02 00 00 74 b9 65 48 8b 05 a5 71 76 11 48 3b 44 24 28 75 44 fb 48 83 c4 30 <5b> 41 5c 41 5d 41 5e 41 5f 5d e9 8a 98 00 0a cc 48 8d 3d c2 51 73
RSP: 0000:ffffc90002fb7d08 EFLAGS: 00000282
RAX: 776d730b973e8100 RBX: 0000000000000202 RCX: 0000000000000046
RDX: 00000000d8d02893 RSI: ffffffff8e151802 RDI: ffffffff8c276500
RBP: ffff88802f21c788 R08: ffffffff82115f41 R09: ffff888033a10088
R10: 0000000000000000 R11: fffff520005f6f98 R12: 0000000000000001
R13: 0000000000000001 R14: ffffffff8e75e0a0 R15: ffff88802f21bc80
 rcu_lock_release include/linux/rcupdate.h:322 [inline]
 rcu_read_unlock include/linux/rcupdate.h:881 [inline]
 lock_vma_under_rcu+0x3ec/0x500 mm/mmap_lock.c:278
 do_user_addr_fault+0x2d8/0x1360 arch/x86/mm/fault.c:1325
 handle_page_fault arch/x86/mm/fault.c:1474 [inline]
 exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1527
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x7f24c661d070
Code: 30 c3 0f 1f 84 00 00 00 00 00 66 48 0f 7e c6 83 fa 08 7d 16 83 fa 04 7d 1a 83 fa 01 7f 1c 7c 03 40 88 37 c3 66 0f 1f 44 00 00 <48> 89 37 48 89 74 17 f8 c3 89 37 89 74 17 fc c3 66 89 37 40 88 74
RSP: 002b:00007ffcabaafe08 EFLAGS: 00010246
RAX: 00007f24c62e8010 RBX: 0000000000000004 RCX: 00007f24c62e8018
RDX: 0000000000000008 RSI: 0000000000000000 RDI: 00007f24c62e8010
RBP: 00007ffcabab0190 R08: 00007f24c62e8010 R09: 0000000000000003
R10: 0000000000000812 R11: 00007ffcabab0278 R12: 00007ffcabaafeb8
R13: 00007f24c62f36b0 R14: 00007ffcabab0230 R15: 00007f24c62e8018
 </TASK>
----------------
Code disassembly (best guess):
   0:	89 44 24 20          	mov    %eax,0x20(%rsp)
   4:	e8 b7 6b 7e fd       	call   0xfd7e6bc0
   9:	48 8b 44 24 20       	mov    0x20(%rsp),%rax
   e:	4c 8b 4d 00          	mov    0x0(%rbp),%r9
  12:	4c 89 ef             	mov    %r13,%rdi
  15:	48 c7 c6 40 6b 27 8c 	mov    $0xffffffff8c276b40,%rsi
  1c:	48 c7 c2 c0 70 27 8c 	mov    $0xffffffff8c2770c0,%rdx
  23:	8b 0c 24             	mov    (%rsp),%ecx
  26:	4d 89 f8             	mov    %r15,%r8
  29:	50                   	push   %rax
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	48 83 c4 08          	add    $0x8,%rsp
  33:	4c 8b 6c 24 18       	mov    0x18(%rsp),%r13
  38:	48                   	rex.W
  39:	b9 00 00 00 00       	mov    $0x0,%ecx
  3e:	00 fc                	add    %bh,%ah