------------[ cut here ]------------
WARNING: CPU: 0 PID: 9 at kernel/sched/deadline.c:1995 enqueue_dl_entity+0x1630/0x1d60 kernel/sched/deadline.c:1995
Modules linked in:
CPU: 0 UID: 0 PID: 9 Comm: kworker/0:1 Not tainted 6.12.0-syzkaller-12038-gc4bb3a2d641c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue:  0x0 (wg-crypt-wg2)
RIP: 0010:enqueue_dl_entity+0x1630/0x1d60 kernel/sched/deadline.c:1995
Code: df 0f b6 04 08 84 c0 0f 85 cf 02 00 00 8b 75 00 48 89 df 4c 89 ea 48 83 c4 58 5b 41 5c 41 5d 41 5e 41 5f 5d e9 d1 1f ff ff 90 <0f> 0b 90 e9 09 ea ff ff 90 0f 0b 90 e9 c4 fb ff ff 90 0f 0b 90 e9
RSP: 0018:ffffc900000e7130 EFLAGS: 00010013
RAX: dffffc0000000000 RBX: ffff8880b863f140 RCX: 1ffff110170c7e25
RDX: ffffffff8172b760 RSI: 0000000000000001 RDI: ffff8880b863f128
RBP: 0000000000000001 R08: ffff888028b34c27 R09: 0000000000000000
R10: ffff888028b34c10 R11: ffffed1005166985 R12: ffff8880b863f128
R13: ffff8880b863f128 R14: ffff8880b863f17c R15: ffff8880b863f200
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c26098c CR3: 0000000031b40000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 dl_server_start+0xc9/0x240 kernel/sched/deadline.c:1650
 enqueue_task_fair+0xb5c/0xea0 kernel/sched/fair.c:7038
 enqueue_task+0x72/0x330 kernel/sched/core.c:2061
 activate_task+0x61/0xc0 kernel/sched/core.c:2108
 attach_task+0xee/0x190 kernel/sched/fair.c:9635
 attach_tasks kernel/sched/fair.c:9670 [inline]
 sched_balance_rq+0x664a/0x8620 kernel/sched/fair.c:11747
 sched_balance_newidle+0x6ba/0xfd0 kernel/sched/fair.c:12789
 pick_next_task_fair+0x40/0xc90 kernel/sched/fair.c:8937
 __pick_next_task+0xdd/0x400 kernel/sched/core.c:6023
 __schedule+0x776/0x4be0 kernel/sched/core.c:6709
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6848
 worker_thread+0xa30/0xd30 kernel/workqueue.c:3406
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>