In the Linux kernel, the following vulnerability has been resolved:
io_uring/napi: cap busy_poll_to 10 msec
Currently theres no cap on the maximum amount of time that napi is allowed to poll if no events are found, which can lead to kernel complaints on a task being stuck as theres no conditional rescheduling done within that loop.
Just cap it to 10 msec in total, thats already way above any kind of sane value that will reap any benefits, yet low enough that its nowhere near being able to trigger preemption complaints.