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ODEBUG: init active (active state 0) object: ffff88805f001178 object type: timer_list hint: lec_arp_check_expire+0x0/0xc80 net/atm/lec.c:-1
WARNING: lib/debugobjects.c:632 at debug_print_object lib/debugobjects.c:629 [inline], CPU#0: syz.3.423/8180
WARNING: lib/debugobjects.c:632 at __debug_object_init+0x2d3/0x470 lib/debugobjects.c:780, CPU#0: syz.3.423/8180
Modules linked in:
CPU: 0 UID: 0 PID: 8180 Comm: syz.3.423 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:debug_print_object lib/debugobjects.c:629 [inline]
RIP: 0010:__debug_object_init+0x32f/0x470 lib/debugobjects.c:780
Code: 3c 28 00 74 08 4c 89 ef e8 de af 6e fd 4d 8b 4d 00 4c 89 f7 48 c7 c6 20 77 ca 8b 4c 89 fa 8b 4c 24 08 4c 8b 44 24 10 ff 34 24 <67> 48 0f b9 3a 48 83 c4 08 4c 8b 7c 24 18 ff 05 79 ab 0f 0b 41 83
RSP: 0018:ffffc900070af8f8 EFLAGS: 00010246
RAX: 1ffffffff16deac4 RBX: ffff88805f001178 RCX: 0000000000000000
RDX: ffffffff8bca7b20 RSI: ffffffff8bca7720 RDI: ffffffff8fd9f9b0
RBP: dffffc0000000000 R08: ffff88805f001178 R09: ffffffff8b6f69a0
R10: dffffc0000000000 R11: ffffffff81b154d0 R12: 0000000000000003
R13: ffffffff8b6f5620 R14: ffffffff8fd9f9b0 R15: ffffffff8bca7b20
FS: 00007f19ddad66c0(0000) GS:ffff888125a5b000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa86245ee9c CR3: 00000000380a4000 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+0x41/0x2c0 kernel/time/timer.c:880
lec_arp_init net/atm/lec.c:1274 [inline]
lecd_attach net/atm/lec.c:781 [inline]
lane_ioctl+0x135b/0x1fc0 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:1328
sock_ioctl+0x5c9/0x7f0 net/socket.c:1449
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:597 [inline]
__se_sys_ioctl+0xff/0x170 fs/ioctl.c:583
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f19de47cdd9
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:00007f19ddad6028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f19de6f5fa0 RCX: 00007f19de47cdd9
RDX: 0000000000000000 RSI: 00000000000061d0 RDI: 0000000000000004
RBP: 00007f19de512d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f19de6f6038 R14: 00007f19de6f5fa0 R15: 00007ffcec8ca078
</TASK>
----------------
Code disassembly (best guess):
0: 3c 28 cmp $0x28,%al
2: 00 74 08 4c add %dh,0x4c(%rax,%rcx,1)
6: 89 ef mov %ebp,%edi
8: e8 de af 6e fd call 0xfd6eafeb
d: 4d 8b 4d 00 mov 0x0(%r13),%r9
11: 4c 89 f7 mov %r14,%rdi
14: 48 c7 c6 20 77 ca 8b mov $0xffffffff8bca7720,%rsi
1b: 4c 89 fa mov %r15,%rdx
1e: 8b 4c 24 08 mov 0x8(%rsp),%ecx
22: 4c 8b 44 24 10 mov 0x10(%rsp),%r8
27: ff 34 24 push (%rsp)
* 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction
2f: 48 83 c4 08 add $0x8,%rsp
33: 4c 8b 7c 24 18 mov 0x18(%rsp),%r15
38: ff 05 79 ab 0f 0b incl 0xb0fab79(%rip) # 0xb0fabb7
3e: 41 rex.B
3f: 83 .byte 0x83