------------[ cut here ]------------ WARNING: CPU: 0 PID: 2992 at kernel/kthread.c:525 __kthread_bind_mask kernel/kthread.c:525 [inline] WARNING: CPU: 0 PID: 2992 at kernel/kthread.c:525 __kthread_bind kernel/kthread.c:538 [inline] WARNING: CPU: 0 PID: 2992 at kernel/kthread.c:525 kthread_unpark+0x16b/0x210 kernel/kthread.c:631 Modules linked in: CPU: 0 UID: 0 PID: 2992 Comm: kworker/u8:10 Not tainted 6.10.0-syzkaller-12708-g2f8c4f506285 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 Workqueue: netns cleanup_net RIP: 0010:__kthread_bind_mask kernel/kthread.c:525 [inline] RIP: 0010:__kthread_bind kernel/kthread.c:538 [inline] RIP: 0010:kthread_unpark+0x16b/0x210 kernel/kthread.c:631 Code: 00 fc ff df 41 0f b6 04 06 84 c0 0f 85 93 00 00 00 41 80 4d 03 04 4c 89 e7 48 8b 34 24 e8 cd 5a 5f 0a eb 09 e8 26 9f 33 00 90 <0f> 0b 90 48 89 ef be 08 00 00 00 e8 25 da 9a 00 f0 80 65 00 fb 4c RSP: 0018:ffffc90009c27760 EFLAGS: 00010293 RAX: ffffffff815fe43a RBX: 0000000000000000 RCX: ffff88802beb0000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff8880697c1200 R08: ffffffff815fe3c7 R09: 1ffffffff26e4d1d R10: dffffc0000000000 R11: fffffbfff26e4d1e R12: 0000000000000001 R13: ffff88802b599e2c R14: 1ffff110056b33c5 R15: ffff88802b599e00 FS: 0000000000000000(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fca65a2d283 CR3: 000000001d76e000 CR4: 00000000003506f0 Call Trace: kthread_stop+0x17a/0x630 kernel/kthread.c:707 destroy_workqueue+0x136/0xc40 kernel/workqueue.c:5793 wg_destruct+0x1e2/0x2e0 drivers/net/wireguard/device.c:257 netdev_run_todo+0xe1a/0x1000 net/core/dev.c:10753 default_device_exit_batch+0xa14/0xa90 net/core/dev.c:11889 ops_exit_list net/core/net_namespace.c:178 [inline] cleanup_net+0x89d/0xcc0 net/core/net_namespace.c:640 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd40 kernel/workqueue.c:3390 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244