linux-kernel - [PATCH] security: export security_kernel_load

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Date:   Tue, 17 Jul 2018 22:23:37 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     James Morris <jmorris@...ei.org>,
        "Serge E. Hallyn" <serge@...lyn.com>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Mimi Zohar <zohar@...ux.vnet.ibm.com>,
        Kees Cook <keescook@...omium.org>,
        David Howells <dhowells@...hat.com>,
        "Eric W. Biederman" <ebiederm@...ssion.com>,
        linux-security-module@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] security: export security_kernel_load_data function

The firmware_loader can be built as a loadable module, which now
fails when CONFIG_SECURITY is enabled, because a call to the
security_kernel_load_data() function got added, and this is
not exported to modules:

ERROR: "security_kernel_load_data" [drivers/base/firmware_loader/firmware_class.ko] undefined!

Add an EXPORT_SYMBOL_GPL() to make it available here.

Fixes: 6e852651f28e ("firmware: add call to LSM hook before firmware sysfs fallback")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 security/security.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/security/security.c b/security/security.c
index 03e98be76d58..7f9618eaba10 100644
--- a/security/security.c
+++ b/security/security.c
@@ -1121,6 +1121,7 @@ int security_kernel_load_data(enum kernel_load_data_id id)
 		return ret;
 	return ima_load_data(id);
 }
+EXPORT_SYMBOL_GPL(security_kernel_load_data);
 
 int security_task_fix_setuid(struct cred *new, const struct cred *old,
 			     int flags)
-- 
2.9.0