In the Linux kernel, the following vulnerability has been resolved:

smb/server: fix invalid pointer dereference in ksmbd_stop_durable_scavenger()

See the procedure below:

ksmbd_launch_ksmbd_durable_scavenger
durable_scavenger_running = true
server_conf.dh_task = kthread_run() // fail, dh_task is an ERR_PTR()

server_ctrl_handle_reset
ksmbd_stop_durable_scavenger
kthread_stop(server_conf.dh_task) // invalid pointer