[backport request] "mm: Fix copy_from_user_nofault()." d319f344561de23e810515d109c7278919bff7b0

[Javier Honduvilla Coto <javierhonduco@xxxxxxxxx>]

Hi,

This patch fixes a deadlock that can render a system frozen when
reading user memory from BPF.
Ideally, it should be applied to any supported revision equal to or
greater than 5.19.

patch subject: mm: Fix copy_from_user_nofault().
git revision: d319f344561de23e810515d109c7278919bff7b0

Thanks,

-- 
Fco. Javier Honduvilla Coto