------------[ cut here ]------------
ODEBUG: init active (active state 0) object: ffff88807a1e8f38 object type: timer_list hint: lec_arp_check_expire+0x0/0xc90 net/atm/lec.c:-1
WARNING: lib/debugobjects.c:632 at debug_print_object lib/debugobjects.c:629 [inline], CPU#1: syz.2.398/7631
WARNING: lib/debugobjects.c:632 at __debug_object_init+0x2b1/0x4e0 lib/debugobjects.c:780, CPU#1: syz.2.398/7631
Modules linked in:
CPU: 1 UID: 0 PID: 7631 Comm: syz.2.398 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:debug_print_object lib/debugobjects.c:629 [inline]
RIP: 0010:__debug_object_init+0x30f/0x4e0 lib/debugobjects.c:780
Code: 3c 38 00 74 08 4c 89 ef e8 0e a4 76 fd 4d 8b 4d 00 4c 89 f7 48 c7 c6 40 d8 27 8c 4c 89 e2 8b 4c 24 08 4c 8b 04 24 ff 74 24 10 <67> 48 0f b9 3a 48 83 c4 08 ff 05 be 6d 58 0b 83 fd 03 75 3f 4c 8b
RSP: 0018:ffffc900032e78f8 EFLAGS: 00010246
RAX: 1ffffffff179e7ec RBX: ffff88807a1e8f38 RCX: 0000000000000000
RDX: ffffffff8c27dc40 RSI: ffffffff8c27d840 RDI: ffffffff901c5ed0
RBP: 0000000000000003 R08: ffff88807a1e8f38 R09: ffffffff8bcf5280
R10: dffffc0000000000 R11: ffffffff81b1f7f0 R12: ffffffff8c27dc40
R13: ffffffff8bcf3f60 R14: ffffffff901c5ed0 R15: dffffc0000000000
FS:  00007f21dc46e6c0(0000) GS:ffff888125557000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f081e5e7158 CR3: 0000000075fb8000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 debug_timer_init kernel/time/timer.c:788 [inline]
 debug_init kernel/time/timer.c:836 [inline]
 timer_init_key+0x41/0x2f0 kernel/time/timer.c:880
 lec_arp_init net/atm/lec.c:1274 [inline]
 lecd_attach net/atm/lec.c:781 [inline]
 lane_ioctl+0x1579/0x2220 net/atm/lec.c:1037
 do_vcc_ioctl+0x36d/0x9d0 net/atm/ioctl.c:159
 svc_ioctl+0x1f6/0x7d0 net/atm/svc.c:611
 sock_do_ioctl+0x101/0x320 net/socket.c:1247
 sock_ioctl+0x5c6/0x7f0 net/socket.c:1368
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f21db59c819
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f21dc46e028 EFLAGS: 00000246
 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f21db815fa0 RCX: 00007f21db59c819
RDX: 0000000000000000 RSI: 00000000000061d0 RDI: 0000000000000007
RBP: 00007f21db632c91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f21db816038 R14: 00007f21db815fa0 R15: 00007ffe30888888
 </TASK>
----------------
Code disassembly (best guess):
   0:	3c 38                	cmp    $0x38,%al
   2:	00 74 08 4c          	add    %dh,0x4c(%rax,%rcx,1)
   6:	89 ef                	mov    %ebp,%edi
   8:	e8 0e a4 76 fd       	call   0xfd76a41b
   d:	4d 8b 4d 00          	mov    0x0(%r13),%r9
  11:	4c 89 f7             	mov    %r14,%rdi
  14:	48 c7 c6 40 d8 27 8c 	mov    $0xffffffff8c27d840,%rsi
  1b:	4c 89 e2             	mov    %r12,%rdx
  1e:	8b 4c 24 08          	mov    0x8(%rsp),%ecx
  22:	4c 8b 04 24          	mov    (%rsp),%r8
  26:	ff 74 24 10          	push   0x10(%rsp)
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	48 83 c4 08          	add    $0x8,%rsp
  33:	ff 05 be 6d 58 0b    	incl   0xb586dbe(%rip)        # 0xb586df7
  39:	83 fd 03             	cmp    $0x3,%ebp
  3c:	75 3f                	jne    0x7d
  3e:	4c                   	rex.WR
  3f:	8b                   	.byte 0x8b