Re: [PATCH] LSM: Convert security_hook_heads into explicit array of struct list_head

From: Alan Cox
Date: Wed May 31 2017 - 10:44:29 EST


> I saw several companies who ship their embedded devices with
> single-function LSM modules (e.g. restrict only mount operation and
> ptrace operation). What is unfortunate is that their LSM modules had
> never been proposed for upstream, and thus bugs remained unnoticed.

So which of them cannot be done with seccomp ? We have a small tight
interface for simple things like restricting a few calls.

> via lack of ability to use LKM-based LSM modules). My customers cannot afford
> enabling SELinux, but my customers cannot rebuild their kernels because
> rebuilding makes it even more difficult to get help from support centers.

And "I've loaded this third party module" doesn't ?

Alan