On Thu 02-03-23 08:13:54, Suren Baghdasaryan wrote: [...] > Let's roll this check without additional changes and then consolidate > the checking inside psi_trigger_create() in a separate patch. If > anybody objects to the late permission check we will just revert that > last change without affecting anything else. Permissions checks at write time are problematic because userspace cannot drop privileges. Also I think it would be an antipattern for how we do this in general. -- Michal Hocko SUSE Labs