------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(!test_bit(class_idx, lock_classes_in_use))
WARNING: CPU: 0 PID: 5829 at kernel/locking/lockdep.c:5196 __lock_acquire+0x165b/0x2100 kernel/locking/lockdep.c:5196
Modules linked in:
CPU: 0 UID: 0 PID: 5829 Comm: syz-executor Not tainted 6.13.0-rc6-syzkaller-00036-gfbfd64d25c7a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__lock_acquire+0x165b/0x2100 kernel/locking/lockdep.c:5196
Code: 0f b6 04 08 84 c0 0f 85 31 0a 00 00 83 3d 30 d9 9e 0e 00 75 19 90 48 c7 c7 80 97 0a 8c 48 c7 c6 60 c0 0a 8c e8 76 4c e5 ff 90 <0f> 0b 90 90 90 e9 be fd ff ff 90 0f 0b 90 e9 16 fd ff ff 90 e8 1c
RSP: 0018:ffffc9000405f610 EFLAGS: 00010046
RAX: 82125552b0867300 RBX: 0000000028f5c2d8 RCX: ffff888027ba1e00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff888027ba2980 R08: ffffffff81602a82 R09: fffffbfff1cfa210
R10: dffffc0000000000 R11: fffffbfff1cfa210 R12: ffff888027ba28c4
R13: ffff888027ba1e00 R14: 0000000000000000 R15: ffff888027ba29a0
FS:  000055555b889500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c465d2f CR3: 000000005de32000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
 _raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378
 raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:598
 _double_lock_balance kernel/sched/sched.h:2989 [inline]
 double_lock_balance kernel/sched/sched.h:3034 [inline]
 find_lock_lowest_rq+0x1e1/0x670 kernel/sched/rt.c:1914
 push_rt_task+0x144/0x790 kernel/sched/rt.c:2048
 push_rt_tasks kernel/sched/rt.c:2096 [inline]
 task_woken_rt+0x14c/0x220 kernel/sched/rt.c:2394
 ttwu_do_activate+0x30c/0x760 kernel/sched/core.c:3732
 ttwu_queue kernel/sched/core.c:3993 [inline]
 try_to_wake_up+0x89b/0x1470 kernel/sched/core.c:4321
 signal_wake_up_state+0xb4/0x120 kernel/signal.c:733
 signal_wake_up include/linux/sched/signal.h:445 [inline]
 complete_signal+0xb36/0xcf0 kernel/signal.c:1022
 __send_signal_locked+0xbd4/0xe90 kernel/signal.c:1152
 do_send_sig_info kernel/signal.c:1268 [inline]
 group_send_sig_info+0x292/0x310 kernel/signal.c:1418
 __kill_pgrp_info kernel/signal.c:1434 [inline]
 kill_something_info kernel/signal.c:1584 [inline]
 __do_sys_kill kernel/signal.c:3938 [inline]
 __se_sys_kill+0x431/0x5d0 kernel/signal.c:3932
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7952f22137
Code: 48 83 c4 08 c3 66 0f 1f 44 00 00 48 c7 c2 a8 ff ff ff 64 89 02 b8 ff ff ff ff eb e4 0f 1f 80 00 00 00 00 b8 3e 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff44edfc28 EFLAGS: 00000293 ORIG_RAX: 000000000000003e
RAX: ffffffffffffffda RBX: 0000000000000368 RCX: 00007f7952f22137
RDX: 00000000000009e5 RSI: 0000000000000009 RDI: 00000000fffffc98
RBP: 00007fff44edfc5c R08: 0000000002a3037f R09: 7fffffffffffffff
R10: 00007f7953cd0038 R11: 0000000000000293 R12: 0000000000000064
R13: 000000000009fcaf R14: 00007fff44edfcb0 R15: 000000000000010f
 </TASK>