------------[ cut here ]------------ WARNING: CPU: 1 PID: 3 at kernel/locking/lockdep.c:6465 lockdep_unregister_key+0x4cd/0x540 kernel/locking/lockdep.c:6465 Modules linked in: CPU: 1 PID: 3 Comm: pool_workqueue_ Not tainted 6.9.0-rc5-syzkaller-01459-gc2e6a872bde9 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:lockdep_unregister_key+0x4cd/0x540 kernel/locking/lockdep.c:6465 Code: 24 41 02 75 14 41 f7 c6 00 02 00 00 74 01 fb e8 29 b4 09 00 e9 83 fc ff ff e8 6f 25 0f 0a 41 f7 c6 00 02 00 00 75 e7 eb e6 90 <0f> 0b 90 eb 85 48 c7 c1 c0 fd a8 8f 80 e1 07 80 c1 03 38 c1 0f 8c RSP: 0018:ffffc90000087cc0 EFLAGS: 00010002 RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000000 RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffc90000087c20 RBP: ffffc90000087da0 R08: 0000000000000003 R09: fffff52000010f84 R10: dffffc0000000000 R11: fffff52000010f84 R12: 000000000000043f R13: 1ffff92000010f9c R14: 0000000000000206 R15: ffffc90000087d00 FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31b23000 CR3: 000000006ec40000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: wq_unregister_lockdep kernel/workqueue.c:4655 [inline] pwq_release_workfn+0x6e0/0x840 kernel/workqueue.c:4958 kthread_worker_fn+0x500/0xaf0 kernel/kthread.c:841 kthread+0x2f0/0x390 kernel/kthread.c:388 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244