From: anupam.kapoor@gmail.com (Anupam Kapoor)
To: kernelnewbies@lists.kernelnewbies.org
Subject: How to disable "module verification failed: signature and/or required key missing - tainting kernel" message?
Date: Mon, 02 Nov 2015 14:13:53 +0530 [thread overview]
Message-ID: <87h9l4rdti.fsf@fatcat.parallelwireless> (raw)
In-Reply-To: <CA+MhoaMWLq=AnFpviTMO-_g-1yH2O2EWdOS9yNY9GWADTD1FbA@mail.gmail.com>
>>>>> [2015-11-02T12:59:30+0530]: "Nan Xiao" (nan-xiao):
,----[ nan-xiao ]
| I don't disable CONFIG_MODULE_SIG configuration in kernel. Since from this
| post (http://stackoverflow.com/questions/24975377/kvm-module-verification-failed-signature-and-or-required-key-missing-taintin),
| the answer said only disable this option in module's Makefile is enough.
`----
following config options are available (under 'enable loadable module support')
CONFIG_MODULE_SIG : checks modules for valid signature on load.
CONFIG_MODULE_SIG_FORCE : rejects unsigned modules or modules for which
key is not available.
thus, if, this is set to 'n' then loading a module with bad signature,
would taint the kernel. however, if, this is set to 'y' then loading a
module with bad signature will be rejected.
so, my guess is that in your case, this is most likely set to 'y'.
--
kind regards
anupam
next prev parent reply other threads:[~2015-11-02 8:43 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-02 5:57 How to disable "module verification failed: signature and/or required key missing - tainting kernel" message? Nan Xiao
2015-11-02 6:13 ` Anupam Kapoor
2015-11-02 7:16 ` Valdis.Kletnieks at vt.edu
2015-11-02 7:29 ` Nan Xiao
2015-11-02 8:43 ` Anupam Kapoor [this message]
2015-11-02 9:06 ` Nan Xiao
2015-11-02 9:29 ` Anupam Kapoor
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