------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(1) WARNING: CPU: 0 PID: 13420 at kernel/locking/lockdep.c:232 hlock_class kernel/locking/lockdep.c:232 [inline] WARNING: CPU: 0 PID: 13420 at kernel/locking/lockdep.c:232 check_wait_context kernel/locking/lockdep.c:4850 [inline] WARNING: CPU: 0 PID: 13420 at kernel/locking/lockdep.c:232 __lock_acquire+0x564/0x2100 kernel/locking/lockdep.c:5176 Modules linked in: CPU: 0 UID: 0 PID: 13420 Comm: syz.7.1623 Not tainted 6.12.0-syzkaller-07834-g06afb0f36106 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:hlock_class kernel/locking/lockdep.c:232 [inline] RIP: 0010:check_wait_context kernel/locking/lockdep.c:4850 [inline] RIP: 0010:__lock_acquire+0x564/0x2100 kernel/locking/lockdep.c:5176 Code: 00 00 83 3d 11 c9 ac 0e 00 75 23 90 48 c7 c7 80 d1 0a 8c 48 c7 c6 80 d4 0a 8c e8 77 64 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:ffffc90003d7f2d0 EFLAGS: 00010046 RAX: 4215103f8b5df600 RBX: 00000000000010d8 RCX: 0000000000080000 RDX: dffffc0000000000 RSI: 000000000000957f RDI: 0000000000009580 RBP: 00000000000c10d8 R08: ffffffff8155fe42 R09: 1ffff110170c519a R10: dffffc0000000000 R11: ffffed10170c519b R12: ffff8880359028c4 R13: 000000000000000f R14: 1ffff11006b2052f R15: ffff888035902978 FS: 00007f6b83fff6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f45936a0d58 CR3: 000000005dcb4000 CR4: 0000000000350ef0 Call Trace: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849 _raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378 sched_core_lock+0x162/0x240 kernel/sched/core.c:374 __sched_core_flip+0x176/0x440 kernel/sched/core.c:401 __sched_core_enable kernel/sched/core.c:438 [inline] sched_core_get+0xbd/0x180 kernel/sched/core.c:456 sched_core_alloc_cookie+0x71/0xa0 kernel/sched/core_sched.c:18 sched_core_share_pid+0x298/0x7d0 kernel/sched/core_sched.c:185 __do_sys_prctl kernel/sys.c:2741 [inline] __se_sys_prctl+0x956/0x3b50 kernel/sys.c:2467 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: 0033:0x7f6b8317e819 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007f6b83fff038 EFLAGS: 00000246 ORIG_RAX: 000000000000009d RAX: ffffffffffffffda RBX: 00007f6b83335fa0 RCX: 00007f6b8317e819 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 000000000000003e RBP: 00007f6b831f175e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f6b83335fa0 R15: 00007fffd307ecc8