------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(1) WARNING: CPU: 0 PID: 46 at kernel/locking/lockdep.c:231 hlock_class kernel/locking/lockdep.c:231 [inline] WARNING: CPU: 0 PID: 46 at kernel/locking/lockdep.c:231 hlock_class kernel/locking/lockdep.c:220 [inline] WARNING: CPU: 0 PID: 46 at kernel/locking/lockdep.c:231 check_wait_context kernel/locking/lockdep.c:4729 [inline] WARNING: CPU: 0 PID: 46 at kernel/locking/lockdep.c:231 __lock_acquire+0x13ae/0x56d0 kernel/locking/lockdep.c:5005 Modules linked in: CPU: 0 PID: 46 Comm: kworker/u4:3 Not tainted 6.2.0-rc4-syzkaller-00191-g71ab9c3e2253 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 Workqueue: events_unbound call_usermodehelper_exec_work RIP: 0010:hlock_class kernel/locking/lockdep.c:231 [inline] RIP: 0010:hlock_class kernel/locking/lockdep.c:220 [inline] RIP: 0010:check_wait_context kernel/locking/lockdep.c:4729 [inline] RIP: 0010:__lock_acquire+0x13ae/0x56d0 kernel/locking/lockdep.c:5005 Code: 08 84 d2 0f 85 56 41 00 00 8b 15 55 7b 0f 0d 85 d2 0f 85 d5 fd ff ff 48 c7 c6 c0 51 4c 8a 48 c7 c7 20 4b 4c 8a e8 92 e1 5b 08 <0f> 0b 31 ed e9 50 f0 ff ff 48 c7 c0 a8 2b 73 8e 48 ba 00 00 00 00 RSP: 0018:ffffc90000b77a30 EFLAGS: 00010082 RAX: 0000000000000000 RBX: ffff88801272a778 RCX: 0000000000000000 RDX: ffff888012729d40 RSI: ffffffff8166822c RDI: fffff5200016ef38 RBP: 0000000000001b2c R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000001 R11: 0000000000000001 R12: ffff88801272a7c8 R13: ffff888012729d40 R14: ffffc9000397fb28 R15: 0000000000040000 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa5a95e81d0 CR3: 00000000284d2000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire kernel/locking/lockdep.c:5668 [inline] lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x3d/0x60 kernel/locking/spinlock.c:162 complete+0x1d/0x1f0 kernel/sched/completion.c:32 umh_complete+0x32/0x90 kernel/umh.c:59 call_usermodehelper_exec_sync kernel/umh.c:144 [inline] call_usermodehelper_exec_work+0x115/0x180 kernel/umh.c:167 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289 worker_thread+0x669/0x1090 kernel/workqueue.c:2436 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308