syzbot

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DEBUG_LOCKS_WARN_ON(1)
WARNING: CPU: 0 PID: 14699 at kernel/locking/lockdep.c:234 hlock_class kernel/locking/lockdep.c:234 [inline]
WARNING: CPU: 0 PID: 14699 at kernel/locking/lockdep.c:234 check_wait_context kernel/locking/lockdep.c:4852 [inline]
WARNING: CPU: 0 PID: 14699 at kernel/locking/lockdep.c:234 __lock_acquire+0x564/0x2100 kernel/locking/lockdep.c:5178
Modules linked in:
CPU: 0 UID: 0 PID: 14699 Comm: syz-executor Not tainted 6.14.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:hlock_class kernel/locking/lockdep.c:234 [inline]
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4852 [inline]
RIP: 0010:__lock_acquire+0x564/0x2100 kernel/locking/lockdep.c:5178
Code: 00 00 83 3d 61 52 a0 0e 00 75 23 90 48 c7 c7 20 b2 2a 8c 48 c7 c6 20 b5 2a 8c e8 f7 bc e4 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:ffffc9000435f610 EFLAGS: 00010046
RAX: fcf7bc4f05b2eb00 RBX: 0000000000001420 RCX: ffff88802bdb0000
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00000000000c1420 R08: ffffffff81819e52 R09: 1ffff110170c519a
R10: dffffc0000000000 R11: ffffed10170c519b R12: ffff88802bdb0ad4
R13: 0000000000000014 R14: 1ffff110057b6176 R15: ffff88802bdb0bb0
FS:  000055558ab6a500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055556e60b4a8 CR3: 0000000068a76000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851
 _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:3006 [inline]
 double_lock_balance kernel/sched/sched.h:3051 [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:3741
 ttwu_queue kernel/sched/core.c:4002 [inline]
 try_to_wake_up+0x89b/0x1470 kernel/sched/core.c:4330
 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+0xb96/0xe90 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:3957 [inline]
 __se_sys_kill+0x330/0x450 kernel/signal.c:3951
 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: 0033:0x7f3450d29567
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:00007ffc824f27e8 EFLAGS: 00000297 ORIG_RAX: 000000000000003e
RAX: ffffffffffffffda RBX: 000000000000006b RCX: 00007f3450d29567
RDX: 0000000000000bb8 RSI: 0000000000000009 RDI: 00000000ffffff95
RBP: 00007ffc824f282c R08: 000000000bd24b53 R09: 0000000000000000
R10: 00007f3451b2e038 R11: 0000000000000297 R12: 0000000000000021
R13: 0000000000000064 R14: 0000000000156539 R15: 00007ffc824f2880
 </TASK>