linux-kernel - Re: [RFC][PATCH 0/8] module: Strict per-modname namespaces

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Message-ID: <20241115124935.GC22801@noisy.programming.kicks-ass.net>
Date: Fri, 15 Nov 2024 13:49:35 +0100
From: Peter Zijlstra <peterz@...radead.org>
To: Sean Christopherson <seanjc@...gle.com>
Cc: mcgrof@...nel.org, x86@...nel.org, hpa@...or.com, petr.pavlu@...e.com,
	samitolvanen@...gle.com, da.gomez@...sung.com, masahiroy@...nel.org,
	nathan@...nel.org, nicolas@...sle.eu, linux-kernel@...r.kernel.org,
	linux-modules@...r.kernel.org, linux-kbuild@...r.kernel.org,
	hch@...radead.org, gregkh@...uxfoundation.org
Subject: Re: [RFC][PATCH 0/8] module: Strict per-modname namespaces

On Tue, Nov 12, 2024 at 08:52:26PM +0100, Peter Zijlstra wrote:
> On Tue, Nov 12, 2024 at 09:56:20AM -0800, Sean Christopherson wrote:
> 
> > This likely needs to be addressed in whatever chunk of code is enforcing the
> > namespaces.  The s/-/_ behavior (and vice versa!) is *very* baked into the kernel
> > at this point, e.g. parameqn() will happily parse dashes or underscores for every
> > kernel parameter.  As horrific as it is, I think the module namespace needs to do
> > the same, i.e. treat dashes and underscores as one and the same.
> 
> Right, I'll add a s/-/_/g on both ends of the strcmp or somesuch.

https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/commit/?h=module/namespace&id=f2aabf8436348a47037570af139ec2c1de8c5337

My test box seems able to load kvm_intel. I'll let it all sit in that
tree for a few days such that 0day might get a chance to chew on it
before posting.

Thanks!