linux-kernel - [PATCH 02/12] Enforce module signatures when trusted kernel is enabled

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Date:	Wed, 26 Feb 2014 15:11:03 -0500
From:	Matthew Garrett <matthew.garrett@...ula.com>
To:	linux-kernel@...r.kernel.org
Cc:	keescook@...omium.org, gregkh@...uxfoundation.org, hpa@...or.com,
	linux-efi@...r.kernel.org, jmorris@...ei.org,
	linux-security-module@...r.kernel.org,
	Matthew Garrett <matthew.garrett@...ula.com>
Subject: [PATCH 02/12] Enforce module signatures when trusted kernel is enabled

If trusted_kernel is true, require that all modules have valid signatures.

Signed-off-by: Matthew Garrett <matthew.garrett@...ula.com>
---
 kernel/module.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/module.c b/kernel/module.c
index d24fcf2..e0220db 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -2448,7 +2448,7 @@ static int module_sig_check(struct load_info *info)
 	if (err < 0 && fips_enabled)
 		panic("Module verification failed with error %d in FIPS mode\n",
 		      err);
-	if (err == -ENOKEY && !sig_enforce)
+	if ((err == -ENOKEY && !sig_enforce) && !get_trusted_kernel())
 		err = 0;
 
 	return err;
-- 
1.8.5.3

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