------------[ cut here ]------------
ODEBUG: free active (active state 0) object: ffff88806a8c4890 object type: timer_list hint: rose_t0timer_expiry+0x0/0x350 net/rose/rose_link.c:-1
WARNING: CPU: 1 PID: 1818 at lib/debugobjects.c:615 debug_print_object+0x16b/0x1e0 lib/debugobjects.c:612
Modules linked in:
CPU: 1 UID: 0 PID: 1818 Comm: syz.6.7265 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: 0018:ffffc90000a08a10 EFLAGS: 00010292
RAX: 1a49c43a9813a800 RBX: dffffc0000000000 RCX: ffff88802e8a5ac0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bfa138 R12: ffffffff8a37af80
R13: ffffffff8bc04680 R14: ffff88806a8c4890 R15: ffffffff8b6ce100
FS:  00007f74ccf146c0(0000) GS:ffff888125e3b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000459030 CR3: 0000000044cf0000 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_is_held_type+0x137/0x190 kernel/locking/lockdep.c:5945
Code: 01 75 44 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 75 4c 41 f7 c4 00 02 00 00 74 01 fb 65 48 8b 05 d9 89 49 07 <48> 3b 44 24 08 75 43 89 d8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f
RSP: 0018:ffffc9000a7ef678 EFLAGS: 00000206
RAX: 1a49c43a9813a800 RBX: 0000000000000000 RCX: 1a49c43a9813a800
RDX: 0000000000000000 RSI: ffffffff8d9c68ab RDI: ffffffff8bc03b60
RBP: 00000000ffffffff R08: 0000000000000000 R09: ffffffff8a4e4a12
R10: 0000000000000081 R11: 0000000000000002 R12: 0000000000000246
R13: ffff88802e8a5ac0 R14: ffffffff8e13a9c0 R15: 0000000000000001
 lock_is_held include/linux/lockdep.h:249 [inline]
 __might_resched+0xa6/0x610 kernel/sched/core.c:8887
 lock_sock_nested+0x5d/0x100 net/core/sock.c:3722
 lock_sock include/net/sock.h:1679 [inline]
 l2cap_sock_recvmsg+0x2f2/0xa10 net/bluetooth/l2cap_sock.c:1218
 sock_recvmsg_nosec+0x183/0x1c0 net/socket.c:1078
 ____sys_recvmsg+0x3aa/0x460 net/socket.c:2848
 ___sys_recvmsg+0x1b5/0x510 net/socket.c:2892
 do_recvmmsg+0x307/0x770 net/socket.c:2987
 __sys_recvmmsg net/socket.c:3061 [inline]
 __do_sys_recvmmsg net/socket.c:3084 [inline]
 __se_sys_recvmmsg net/socket.c:3077 [inline]
 __x64_sys_recvmmsg+0x190/0x240 net/socket.c:3077
 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: 0033:0x7f74cbf8eec9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f74ccf14038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f74cc1e5fa0 RCX: 00007f74cbf8eec9
RDX: 000000000400023c RSI: 00002000000055c0 RDI: 0000000000000004
RBP: 00007f74cc011f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000300 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f74cc1e6038 R14: 00007f74cc1e5fa0 R15: 00007ffecff145d8
 </TASK>
----------------
Code disassembly (best guess):
   0:	01 75 44             	add    %esi,0x44(%rbp)
   3:	48 c7 04 24 00 00 00 	movq   $0x0,(%rsp)
   a:	00
   b:	9c                   	pushf
   c:	8f 04 24             	pop    (%rsp)
   f:	f7 04 24 00 02 00 00 	testl  $0x200,(%rsp)
  16:	75 4c                	jne    0x64
  18:	41 f7 c4 00 02 00 00 	test   $0x200,%r12d
  1f:	74 01                	je     0x22
  21:	fb                   	sti
  22:	65 48 8b 05 d9 89 49 	mov    %gs:0x74989d9(%rip),%rax        # 0x7498a03
  29:	07
* 2a:	48 3b 44 24 08       	cmp    0x8(%rsp),%rax <-- trapping instruction
  2f:	75 43                	jne    0x74
  31:	89 d8                	mov    %ebx,%eax
  33:	48 83 c4 10          	add    $0x10,%rsp
  37:	5b                   	pop    %rbx
  38:	41 5c                	pop    %r12
  3a:	41 5d                	pop    %r13
  3c:	41 5e                	pop    %r14
  3e:	41 5f                	pop    %r15