------------[ cut here ]------------
[    0.960031] WARNING: CPU: 4 PID: 53 at kernel/fork.c:606 free_task+0x70/0x80
[    0.960051] Modules linked in:
[    0.960058] CPU: 4 UID: 0 PID: 53 Comm: rcuc/4 Tainted: G      D W          6.12.0-next-20241127 #1
[    0.960073] Tainted: [D]=DIE, [W]=WARN
[    0.960077] Hardware name: Radxa ROCK Pi 4B (DT)
[    0.960081] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[    0.960092] pc : free_task+0x70/0x80
[    0.960105] lr : free_task+0x24/0x80
[    0.960118] sp : ffff8000828e3cd0
[    0.960122] x29: ffff8000828e3cd0 x28: ffff800080130784 x27: ffff8000801307d0
[    0.960136] x26: ffff8000820a6240 x25: 000000000000000a x24: ffff0000f76ab7b8
[    0.960150] x23: 0000000000000000 x22: 0000000000000000 x21: ffff000000c41100
[    0.960164] x20: ffff000005e250c0 x19: ffff000006a1a200 x18: 0000000000000003
[    0.960178] x17: ffff800082399b90 x16: 0000000000000000 x15: ffff0000f76ab180
[    0.960191] x14: 000000ae3b139eb4 x13: 0002dcceda62448c x12: 0000000000000012
[    0.960206] x11: 0000000000000000 x10: 0000000000000a50 x9 : ffff8000828e3d70
[    0.960220] x8 : ffff8000828e3c90 x7 : 0000000000000000 x6 : 0000000000000000
[    0.960233] x5 : 00000000801a0017 x4 : fffffdffc0178820 x3 : 00000000801a0017
[    0.960246] x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000001
[    0.960260] Call trace:
[    0.960264]  free_task+0x70/0x80 (P)
[    0.960279]  free_task+0x24/0x80 (L)
[    0.960294]  __put_task_struct+0xf4/0x14c
[    0.960310]  __put_task_struct_rcu_cb+0x14/0x20
[    0.960325]  rcu_core+0x25c/0x65c
[    0.960336]  rcu_cpu_kthread+0xbc/0x144
[    0.960346]  smpboot_thread_fn+0x204/0x228
[    0.960360]  kthread+0x110/0x114
[    0.960375]  ret_from_fork+0x10/0x20
[    0.960387] ---[ end trace 0000000000000000 ]---