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From: Christoph Hellwig <hch@lst.de>
To: Jessica Yu <jeyu@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	linux-kernel@vger.kernel.org (open list)
Subject: inherit TAINT_PROPRIETARY_MODULE v2
Date: Thu, 30 Jul 2020 08:10:19 +0200	[thread overview]
Message-ID: <20200730061027.29472-1-hch@lst.de> (raw)

Hi Jessica,

we've had a bug in our resolution of _GPL modules since day one, that
is a module can claim to be GPL licensed and use _GPL exports, while
it also depends on symbols from non-GPL modules.  This is used as a
circumvention of the _GPL exports by using a small shim module using
the _GPL exports and the other functionality.  A recent example can
be found here:

    https://lore.kernel.org/netdev/6376CA34-BC6F-45DE-9FFD-7E32664C7569@fb.com/T/#md514322fdfa212afe9f1d3eb4e5f7eaefece36eb

Changes since v1:
 - standardize on one spelling of "license"
 - fix a commit message type

Diffstat:
 include/linux/module.h |   26 +++-----------------------
 kernel/module.c        |   46 +++++++++++++++++++++++++++++-----------------
 2 files changed, 32 insertions(+), 40 deletions(-)

             reply	other threads:[~2020-07-30  6:10 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-30  6:10 Christoph Hellwig [this message]
2020-07-30  6:10 ` [PATCH 1/8] modules: mark ref_module static Christoph Hellwig
2020-07-30  6:10 ` [PATCH 2/8] modules: mark find_symbol static Christoph Hellwig
2020-07-30  6:10 ` [PATCH 3/8] modules: mark each_symbol_section static Christoph Hellwig
2020-07-30  6:10 ` [PATCH 4/8] modules: unexport __module_text_address Christoph Hellwig
2020-07-30  6:10 ` [PATCH 5/8] modules: unexport __module_address Christoph Hellwig
2020-07-30  6:10 ` [PATCH 6/8] modules: rename the licence field in struct symsearch to license Christoph Hellwig
2020-07-30  6:10 ` [PATCH 7/8] modules: return licensing information from find_symbol Christoph Hellwig
2020-07-30  6:10 ` [PATCH 8/8] modules: inherit TAINT_PROPRIETARY_MODULE Christoph Hellwig
2020-07-30 14:12   ` Jessica Yu
2020-07-30 16:29     ` Christoph Hellwig
2020-07-31  8:51       ` Jessica Yu
2020-07-31  9:00         ` Christoph Hellwig
2020-07-31  9:01           ` Jessica Yu
2020-08-04 18:52   ` daniel
2020-08-04 18:52     ` daniel
2020-07-31 20:11 ` inherit TAINT_PROPRIETARY_MODULE v2 josh
2020-08-01  6:53   ` Christoph Hellwig
2020-08-01  8:16     ` Josh Triplett

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