linux-kernel - [PATCH v3 0/5] module: Strict per-modname namespaces

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Message-ID: <20250502141204.500293812@infradead.org>
Date: Fri, 02 May 2025 16:12:04 +0200
From: Peter Zijlstra <peterz@...radead.org>
To: mcgrof@...nel.org
Cc: 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,
 roypat@...zon.co.uk
Subject: [PATCH v3 0/5] module: Strict per-modname namespaces

Hi!

Implement means for exports to be available to an explicit list of named
modules. By explicitly limiting the usage of certain exports, the abuse
potential/risk is greatly reduced.

Changes since v2:

 - switch to "module:" prefix (Masahiro)
 - removed some patch noise (Masahiro)
 - strstarts() and strlen() usage for prefixes (Masahiro)
 - simpler ___EXPORT_SYMBOL() changes (Masahiro)

Not making using of glob_match() / fnmatch(); this would result in more
complicated code for very little gain.