linux-kernel - [PATCH v2 2/2] block: fix part_pack

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]

Date:	Sun, 24 Feb 2013 23:42:37 -0500
From:	Mimi Zohar <zohar@...ux.vnet.ibm.com>
To:	linux-security-module@...r.kernel.org
Cc:	Mimi Zohar <zohar@...ux.vnet.ibm.com>,
	James Morris <jmorris@...ei.org>,
	Randy Dunlap <rdunlap@...radead.org>,
	David Rientjes <rientjes@...gle.com>, axboe <axboe@...nel.dk>,
	Dmitry Kasatkin <dmitry.kasatkin@...el.com>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: [PATCH v2 2/2] block: fix part_pack_uuid() build error

Commit "85865c1 ima: add policy support for file system uuid"
introduced a CONFIG_BLOCK dependency.  This patch defines a
wrapper called blk_part_pack_uuid(), which returns -EINVAL,
when CONFIG_BLOCK is not defined.

security/integrity/ima/ima_policy.c:538:4: error: implicit declaration
of function 'part_pack_uuid' [-Werror=implicit-function-declaration]

Changelog v2:
- Reference commit number in patch description
Changelog v1:
- rename ima_part_pack_uuid() to blk_part_pack_uuid()
- resolve scripts/checkpatch.pl warnings
Changelog v0:
- fix UUID scripts/Lindent msgs

Reported-by: Randy Dunlap <rdunlap@...radead.org>
Reported-by: David Rientjes <rientjes@...gle.com>
Signed-off-by: Mimi Zohar <zohar@...ux.vnet.ibm.com>
Acked-by: David Rientjes <rientjes@...gle.com>
Acked-by: Randy Dunlap <rdunlap@...radead.org>
Cc: Jens Axboe <axboe@...nel.dk>
---
 include/linux/genhd.h               | 10 ++++++++++
 security/integrity/ima/ima_policy.c | 11 ++++++-----
 2 files changed, 16 insertions(+), 5 deletions(-)

diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index 79b8bba..9f3c275 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -231,6 +231,12 @@ static inline void part_pack_uuid(const u8 *uuid_str, u8 *to)
 	}
 }
 
+static inline int blk_part_pack_uuid(const u8 *uuid_str, u8 *to)
+{
+	part_pack_uuid(uuid_str, to);
+	return 0;
+}
+
 static inline int disk_max_parts(struct gendisk *disk)
 {
 	if (disk->flags & GENHD_FL_EXT_DEVT)
@@ -718,6 +724,10 @@ static inline dev_t blk_lookup_devt(const char *name, int partno)
 	return devt;
 }
 
+static inline int blk_part_pack_uuid(const u8 *uuid_str, u8 *to)
+{
+	return -EINVAL;
+}
 #endif /* CONFIG_BLOCK */
 
 #endif /* _LINUX_GENHD_H */
diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c
index b27535a..399433a 100644
--- a/security/integrity/ima/ima_policy.c
+++ b/security/integrity/ima/ima_policy.c
@@ -176,7 +176,7 @@ static bool ima_match_rules(struct ima_rule_entry *rule,
 	    && rule->fsmagic != inode->i_sb->s_magic)
 		return false;
 	if ((rule->flags & IMA_FSUUID) &&
-		memcmp(rule->fsuuid, inode->i_sb->s_uuid, sizeof(rule->fsuuid)))
+	    memcmp(rule->fsuuid, inode->i_sb->s_uuid, sizeof(rule->fsuuid)))
 		return false;
 	if ((rule->flags & IMA_UID) && !uid_eq(rule->uid, cred->uid))
 		return false;
@@ -530,14 +530,15 @@ static int ima_parse_rule(char *rule, struct ima_rule_entry *entry)
 			ima_log_string(ab, "fsuuid", args[0].from);
 
 			if (memchr_inv(entry->fsuuid, 0x00,
-			    sizeof(entry->fsuuid))) {
+				       sizeof(entry->fsuuid))) {
 				result = -EINVAL;
 				break;
 			}
 
-			part_pack_uuid(args[0].from, entry->fsuuid);
-			entry->flags |= IMA_FSUUID;
-			result = 0;
+			result = blk_part_pack_uuid(args[0].from,
+						    entry->fsuuid);
+			if (!result)
+				entry->flags |= IMA_FSUUID;
 			break;
 		case Opt_uid:
 			ima_log_string(ab, "uid", args[0].from);
-- 
1.8.1.rc3

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/