linux-kernel - [PATCH v3 3/6] integrity: remove global variable from machine

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20230813021531.1382815-4-nayna@linux.ibm.com>
Date:   Sat, 12 Aug 2023 22:15:28 -0400
From:   Nayna Jain <nayna@...ux.ibm.com>
To:     linux-integrity@...r.kernel.org
Cc:     Mimi Zohar <zohar@...ux.ibm.com>,
        Jarkko Sakkinen <jarkko@...nel.org>,
        Eric Snowberg <eric.snowberg@...cle.com>,
        Paul Moore <paul@...l-moore.com>,
        linux-security-module@...r.kernel.org,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        linux-kernel@...r.kernel.org, Nayna Jain <nayna@...ux.ibm.com>
Subject: [PATCH v3 3/6] integrity: remove global variable from machine_keyring.c

trust_mok variable is accessed within a single function locally.

Change trust_mok from global to local static variable.

Signed-off-by: Nayna Jain <nayna@...ux.ibm.com>
Reviewed-and-tested-by: Mimi Zohar <zohar@...ux.ibm.com>
Reviewed-by: Jarkko Sakkinen <jarkko@...nel.org>
---
 security/integrity/platform_certs/machine_keyring.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/security/integrity/platform_certs/machine_keyring.c b/security/integrity/platform_certs/machine_keyring.c
index 389a6e7c9245..9482e16cb2ca 100644
--- a/security/integrity/platform_certs/machine_keyring.c
+++ b/security/integrity/platform_certs/machine_keyring.c
@@ -8,8 +8,6 @@
 #include <linux/efi.h>
 #include "../integrity.h"
 
-static bool trust_mok;
-
 static __init int machine_keyring_init(void)
 {
 	int rc;
@@ -65,9 +63,11 @@ static __init bool uefi_check_trust_mok_keys(void)
 bool __init trust_moklist(void)
 {
 	static bool initialized;
+	static bool trust_mok;
 
 	if (!initialized) {
 		initialized = true;
+		trust_mok = false;
 
 		if (uefi_check_trust_mok_keys())
 			trust_mok = true;
-- 
2.31.1