------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(1)
WARNING: CPU: 0 PID: 52 at kernel/locking/lockdep.c:232 hlock_class kernel/locking/lockdep.c:232 [inline]
WARNING: CPU: 0 PID: 52 at kernel/locking/lockdep.c:232 check_wait_context kernel/locking/lockdep.c:4826 [inline]
WARNING: CPU: 0 PID: 52 at kernel/locking/lockdep.c:232 __lock_acquire+0x58c/0x2050 kernel/locking/lockdep.c:5152
Modules linked in:
CPU: 0 UID: 0 PID: 52 Comm: kworker/u8:3 Not tainted 6.12.0-rc7-syzkaller-00216-gf66d6acccbc0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Workqueue: ipv6_addrconf addrconf_dad_work
RIP: 0010:hlock_class kernel/locking/lockdep.c:232 [inline]
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4826 [inline]
RIP: 0010:__lock_acquire+0x58c/0x2050 kernel/locking/lockdep.c:5152
Code: 00 00 83 3d f5 dc ac 0e 00 75 23 90 48 c7 c7 60 c9 0a 8c 48 c7 c6 00 cc 0a 8c e8 0f 7d e5 ff 48 ba 00 00 00 00 00 fc ff df 90 <0f> 0b 90 90 90 31 db 48 81 c3 c4 00 00 00 48 89 d8 48 c1 e8 03 0f
RSP: 0018:ffffc90000007950 EFLAGS: 00010046
RAX: 68a9af95041cc500 RBX: 0000000000001228 RCX: ffff888021e89e00
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000019 R08: ffffffff8155e312 R09: fffffbfff1cf9ff8
R10: dffffc0000000000 R11: fffffbfff1cf9ff8 R12: ffff888021e89e00
R13: 0000000000001228 R14: 1ffff110043d1539 R15: ffff888021e8a9c8
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200d9030 CR3: 000000007d664000 CR4: 0000000000350ef0
Call Trace:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825
_raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378
raw_spin_rq_lock_nested+0xb0/0x140 kernel/sched/core.c:606
raw_spin_rq_lock kernel/sched/sched.h:1506 [inline]
rq_lock kernel/sched/sched.h:1805 [inline]
ttwu_queue kernel/sched/core.c:3951 [inline]
try_to_wake_up+0x81e/0x14b0 kernel/sched/core.c:4281
hrtimer_wakeup+0x62/0x80 kernel/time/hrtimer.c:1927
__run_hrtimer kernel/time/hrtimer.c:1691 [inline]
__hrtimer_run_queues+0x59d/0xd50 kernel/time/hrtimer.c:1755
hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1817
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
__sysvec_apic_timer_interrupt+0x112/0x420 arch/x86/kernel/apic/apic.c:1055
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:finish_task_switch+0x1ea/0x870 kernel/sched/core.c:5202
Code: c9 50 e8 79 00 0c 00 48 83 c4 08 4c 89 f7 e8 4d 39 00 00 e9 de 04 00 00 4c 89 f7 e8 f0 3d 6d 0a e8 ab 5b 38 00 fb 48 8b 5d c0 <48> 8d bb f8 15 00 00 48 89 f8 48 c1 e8 03 49 be 00 00 00 00 00 fc
RSP: 0018:ffffc90000bd7328 EFLAGS: 00000282
RAX: 68a9af95041cc500 RBX: ffff888021e89e00 RCX: ffffffff8170cfaa
RDX: dffffc0000000000 RSI: ffffffff8c0acac0 RDI: ffffffff8c610d20
RBP: ffffc90000bd7370 R08: ffffffff942d080f R09: 1ffffffff285a101
R10: dffffc0000000000 R11: fffffbfff285a102 R12: 1ffff110170c7f14
R13: dffffc0000000000 R14: ffff8880b863ea80 R15: ffff8880b863f8a0
context_switch kernel/sched/core.c:5331 [inline]
__schedule+0x1857/0x4c30 kernel/sched/core.c:6693
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7015
irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:92 [inline]
RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:124 [inline]
RIP: 0010:lock_is_held_type+0x6e/0x190 kernel/locking/lockdep.c:5893
Code: 2c 25 c0 d7 03 00 41 83 bd dc 0a 00 00 00 0f 85 da 00 00 00 41 89 f6 49 89 ff 48 c7 04 24 00 00 00 00 9c 8f 04 24 4c 8b 24 24 48 c7 c7 a0 d7 0a 8c e8 65 1b 00 00 65 ff 05 0e af 3a 74 41 83
RSP: 0018:ffffc90000bd7718 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00000000ffffffff RCX: 0000000080000000
RDX: ffff888021e89e00 RSI: 00000000ffffffff RDI: ffffffff8e937ee0
RBP: 0000000000000001 R08: ffffffff8a6ba550 R09: 1ffffffff285a100
R10: dffffc0000000000 R11: fffffbfff285a101 R12: 0000000000000246
R13: ffff888021e89e00 R14: 00000000ffffffff R15: ffffffff8e937ee0
in6_dev_get+0xf9/0x290 include/net/addrconf.h:376
icmp6_dst_alloc+0x2f/0x420 net/ipv6/route.c:3269
ndisc_send_skb+0x32a/0x1380 net/ipv6/ndisc.c:491
ndisc_send_ns+0xcc/0x160 net/ipv6/ndisc.c:669
addrconf_dad_work+0xb45/0x16f0 net/ipv6/addrconf.c:4284
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa65/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
----------------
Code disassembly (best guess):
0: c9 leave
1: 50 push %rax
2: e8 79 00 0c 00 call 0xc0080
7: 48 83 c4 08 add $0x8,%rsp
b: 4c 89 f7 mov %r14,%rdi
e: e8 4d 39 00 00 call 0x3960
13: e9 de 04 00 00 jmp 0x4f6
18: 4c 89 f7 mov %r14,%rdi
1b: e8 f0 3d 6d 0a call 0xa6d3e10
20: e8 ab 5b 38 00 call 0x385bd0
25: fb sti
26: 48 8b 5d c0 mov -0x40(%rbp),%rbx
* 2a: 48 8d bb f8 15 00 00 lea 0x15f8(%rbx),%rdi <-- trapping instruction
31: 48 89 f8 mov %rdi,%rax
34: 48 c1 e8 03 shr $0x3,%rax
38: 49 rex.WB
39: be 00 00 00 00 mov $0x0,%esi
3e: 00 fc add %bh,%ah