------------[ cut here ]------------
[    1.035946] WARNING: CPU: 4 PID: 53 at kernel/fork.c:606 free_task+0x70/0x80
[    1.035958] Modules linked in:
[    1.035963] CPU: 4 UID: 0 PID: 53 Comm: rcuc/4 Tainted: G      D W          6.12.0-next-20241121 #1
[    1.035972] Tainted: [D]=DIE, [W]=WARN
[    1.035974] Hardware name: Radxa ROCK Pi 4B (DT)
[    1.035976] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[    1.035983] pc : free_task+0x70/0x80
[    1.035991] lr : free_task+0x24/0x80
[    1.035998] sp : ffff8000828e3cd0
[    1.036001] x29: ffff8000828e3cd0 x28: ffff800080130784 x27: ffff8000801307d0
[    1.036010] x26: ffff8000820a6240 x25: 000000000000000a x24: ffff0000f76ab7b8
[    1.036018] x23: 0000000000000000 x22: 0000000000000000 x21: ffff000000c41100
[    1.036026] x20: ffff0000015397c0 x19: ffff00000152d500 x18: 0000000000000000
[    1.036034] x17: 0000000000000000 x16: 0000000000000000 x15: ffff0000f76ab180
[    1.036042] x14: ffff0000f7691a00 x13: 00000000000000af x12: 00000000000003c1
[    1.036050] x11: 00000000000002c4 x10: 0000000000000a50 x9 : ffff8000828e3d70
[    1.036058] x8 : ffff8000828e3c90 x7 : 0000000000000000 x6 : 0000000000000000
[    1.036066] x5 : 00000000801a0018 x4 : fffffdffc0054e20 x3 : 00000000801a0018
[    1.036075] x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000001
[    1.036083] Call trace:
[    1.036085]  free_task+0x70/0x80 (P)
[    1.036094]  free_task+0x24/0x80 (L)
[    1.036103]  __put_task_struct+0xf4/0x14c
[    1.036112]  __put_task_struct_rcu_cb+0x14/0x20
[    1.036121]  rcu_core+0x25c/0x65c
[    1.036127]  rcu_cpu_kthread+0xbc/0x144
[    1.036134]  smpboot_thread_fn+0x204/0x228
[    1.036142]  kthread+0x110/0x114
[    1.036151]  ret_from_fork+0x10/0x20
[    1.036158] ---[ end trace 0000000000000000 ]---