------------[ cut here ]------------
WARNING: kernel/futex/core.c:1604 at futex_ref_rcu+0x2cf/0x360, CPU#0: ksoftirqd/0/14
Modules linked in:
CPU: 0 UID: 0 PID: 14 Comm: ksoftirqd/0 Tainted: G        W           6.17.0-rc4-next-20250901 #1 PREEMPT(voluntary) 
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:futex_ref_rcu+0x2cf/0x360
Code: ff e9 37 ff ff ff e8 40 fb 0c 00 4c 89 ef e8 c8 04 e8 ff eb a8 e8 31 fb 0c 00 48 89 ef e8 e9 fb ff ff eb a6 e8 22 fb 0c 00 90 <0f> 0b 90 eb 8e e8 17 fb 0c 00 90 0f 0b 90 e9 cd fd ff ff 48 89 ef
RSP: 0018:ffff888009617c70 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8166fb1d
RDX: ffff888009601b80 RSI: ffffffff8166fb8e RDI: 0000000000000007
RBP: ffffffffffffffff R08: 0000000000000001 R09: ffffed100169e451
R10: ffffffffffffffff R11: 0000000000000001 R12: dffffc0000000000
R13: ffff88800b4f1f80 R14: ffffed100169e452 R15: 0000000000000002
FS:  0000000000000000(0000) GS:ffff8880e55d8000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000005a88000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 rcu_core+0x7c8/0x1800
 handle_softirqs+0x1b1/0x770
 run_ksoftirqd+0x2e/0x60
 smpboot_thread_fn+0x41d/0x9d0
 kthread+0x3c8/0x740
 ret_from_fork+0x34b/0x430
 ret_from_fork_asm+0x1a/0x30
 </TASK>
irq event stamp: 3434538
hardirqs last  enabled at (3434546): [<ffffffff81541b18>] __up_console_sem+0x78/0x80
hardirqs last disabled at (3434555): [<ffffffff81541afd>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (3433950): [<ffffffff813bafcc>] handle_softirqs+0x50c/0x770
softirqs last disabled at (3433957): [<ffffffff813bb3de>] run_ksoftirqd+0x2e/0x60
---[ end trace 0000000000000000 ]---
syz-executor.5 (4082) used greatest stack depth: 24560 bytes left