------------[ cut here ]------------
[    0.959620] WARNING: CPU: 4 PID: 53 at kernel/fork.c:969 __put_task_struct+0x144/0x14c
[    0.959655] Modules linked in:
[    0.959668] CPU: 4 UID: 0 PID: 53 Comm: rcuc/4 Tainted: G      D            6.12.0-next-20241127 #1
[    0.959683] Tainted: [D]=DIE
[    0.959688] Hardware name: Radxa ROCK Pi 4B (DT)
[    0.959693] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[    0.959704] pc : __put_task_struct+0x144/0x14c
[    0.959721] lr : __put_task_struct_rcu_cb+0x14/0x20
[    0.959736] sp : ffff8000828e3cf0
[    0.959740] x29: ffff8000828e3cf0 x28: ffff800080130784 x27: ffff8000801307d0
[    0.959757] x26: ffff8000820a6240 x25: 000000000000000a x24: ffff0000f76ab7b8
[    0.959772] x23: 0000000000000000 x22: 0000000000000000 x21: ffff000000c41100
[    0.959786] x20: ffff0000f76ab740 x19: ffff000006a1a200 x18: 0000000000000003
[    0.959801] x17: ffff800082399b90 x16: 0000000000000000 x15: ffff0000f76ab180
[    0.959814] x14: 000000ae3b139eb4 x13: 0002dcceda62448c x12: 0000000000000012
[    0.959829] x11: 0000000000000000 x10: 0000000000000a50 x9 : ffff8000828e3d70
[    0.959843] x8 : ffff000000c41bb0 x7 : ffff0000f76aa980 x6 : 000000000002dcce
[    0.959857] x5 : 0000000000000000 x4 : ffff0000f76ab7c0 x3 : ffff0000057c0e08
[    0.959871] x2 : ffff800080097800 x1 : ffff000006a1abd8 x0 : 0000000000000000
[    0.959884] Call trace:
[    0.959890]  __put_task_struct+0x144/0x14c (P)
[    0.959908]  __put_task_struct_rcu_cb+0x14/0x20 (L)
[    0.959925]  __put_task_struct_rcu_cb+0x14/0x20
[    0.959940]  rcu_core+0x25c/0x65c
[    0.959953]  rcu_cpu_kthread+0xbc/0x144
[    0.959964]  smpboot_thread_fn+0x204/0x228
[    0.959980]  kthread+0x110/0x114
[    0.959995]  ret_from_fork+0x10/0x20
[    0.960009] ---[ end trace 0000000000000000 ]---