WARNING: CPU: 0 PID: 1419 at kernel/locking/lockdep.c:936 look_up_lock_class+0x140/0x150 kernel/locking/lockdep.c:936 Modules linked in: CPU: 0 UID: 0 PID: 1419 Comm: kworker/0:3 Not tainted 6.12.0-rc3-syzkaller-00007-g6485cf5ea253 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Workqueue: wg-kex-wg1 wg_packet_handshake_receive_worker RIP: 0010:look_up_lock_class+0x140/0x150 kernel/locking/lockdep.c:936 Code: c7 c7 60 cf 6c 8b e8 2f 8f 2c f6 90 0f 0b 90 90 90 31 db eb be c6 05 c5 14 26 05 01 90 48 c7 c7 40 d2 6c 8b e8 11 8f 2c f6 90 <0f> 0b 90 90 e9 58 ff ff ff 0f 1f 80 00 00 00 00 90 90 90 90 90 90 RSP: 0018:ffffc90006baf988 EFLAGS: 00010086 RAX: 0000000000000000 RBX: ffffffff96e97090 RCX: ffffffff814e71a9 RDX: ffff888027dc8000 RSI: ffffffff814e71b6 RDI: 0000000000000001 RBP: ffffffff9ab0ac60 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 20676e696b6f6f4c R12: ffffc90006bafd80 R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff9a821820 FS: 0000000000000000(0000) GS:ffff88806a600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200f7000 CR3: 000000005e206000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: register_lock_class+0xb1/0x1240 kernel/locking/lockdep.c:1290 __lock_acquire+0x135/0x3ce0 kernel/locking/lockdep.c:5077 lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5825 process_one_work+0x927/0x1ba0 kernel/workqueue.c:3205 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244